Detection signal transmission mechanism and developing box

Abstract

The present invention relates to the technical field, and provides a detection signal transmission mechanism, and provides a developing box, wherein the detection signal transmission mechanism includes: a housing; a detected part, movably arranged on the housing; a transmission wheel, rotatably connected to the housing, and used to receive the driving force from the driving force receiving member; a transmission member, coaxially arranged with the transmission wheel and synchronously connected, and having at least one force-applying part on the transmission member, each force-applying part is circumferentially arranged on the transmission member and used to push the detected part to move on the housing, wherein the housing has a separation block, and the transmission member also has a separation force receiving part, the separation block is arranged on the movement path of the separation force receiving part and can push the separation force receiving part to separate the transmission member from the transmission wheel. Compared with the prior art, the present invention solves the technical problems of the complex structure, high manufacturing precision requirements and the risk of jamming of the current toothless gears, and has a simple and ingenious structure, which ensures the smooth transmission of the detection signal.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic photographic imaging equipment, and more specifically, relates to a detection signal transmission mechanism and a developing box. Background Art

[0002] The process box is an important component of the electronic photographic imaging device, which is used for photosensitive development of the electronic photographic imaging device. The existing process boxes include two types: one is that the photosensitive drum box and the developer box are combined together to form an integrated process box; the other is that the developer box is set in the photosensitive drum box to form a split process box.

[0003] Generally, in a split-type processing cartridge, the developing cartridge can provide developer to the photosensitive drum during printing so as to develop the electrostatic latent image on the photosensitive drum. When the developer in the developing cartridge is almost exhausted, a new developing cartridge needs to be replaced and installed in the electronic photographic imaging device for use. The developing cartridge in the prior art is provided with a detection member, which cooperates with the detection member in the electronic photographic imaging device for detection, so as to determine whether the developing cartridge is new or the printable amount of the developing cartridge and the specifications of the developing cartridge.

[0004] There is a developing box, and the detection device of the developing box includes a gear device and a detected part connected to the detection mechanism on the electronic photographic imaging device, wherein the detected part is arranged on one side of the developing box shell, and the gear device abuts against the detected part through a toothless gear, and the gear device receives the driving force from the electronic photographic imaging device. When the gear device receives the driving force and operates, the toothless gear pushes the detected part to swing through its own gear part, and the detected part transmits the signal to the detection mechanism until the toothless gear rotates to the toothless part to complete the detection process.

[0005] However, the above developer box structure has the following defects: 1. When the developer box is disassembled and installed, the toothless gear will no longer rotate with the gear device and cannot be reset; 2. This structure requires the toothed part and the toothless part of the toothless gear to be closely matched with the stirring gear on the gear device, which requires high manufacturing precision, high production cost, complex structure, and it is easy for the stirring gear and the toothless gear to get stuck during the detection contact process, thus affecting the detection result. Summary of the invention

[0006] The purpose of the embodiment of the present invention is to provide a detection signal transmission mechanism to solve the technical problems of the current toothless gears, such as complex structure, high manufacturing precision requirements and risk of jamming. The structure is simple and ingenious, ensuring the smooth transmission of the detection signal.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a detection signal transmission mechanism, including: a shell; a detected part, movably arranged on the shell; a transmission wheel, rotatably connected to the shell, and used to receive the driving force from the driving force receiving component; a transmission member, coaxially arranged with the transmission wheel and synchronously connected, the transmission member has at least one force-applying part, each of the force-applying parts is circumferentially arranged on the transmission member and is used to push the detected part to move on the shell, wherein the shell has a separation block, and the transmission member also has a separation force receiving part, the separation block is arranged on the movement path of the separation force receiving part and can push the separation force receiving part to separate the transmission member from the transmission wheel.

[0008] The detection signal transmission mechanism provided by the present invention has at least the following beneficial effects: compared with the prior art, the detection signal transmission mechanism cancels the toothless gear structure, and transmits the driving force for detection through a separately arranged transmission member. When the transmission wheel receives the driving force and rotates, the transmission wheel drives the transmission member to rotate synchronously, and each force-applying part on the transmission member pushes the detected part in turn, so that the detected part moves and transmits the corresponding detection signal to the detection mechanism of the electronic photographic imaging device. After all the force-applying parts have finished acting, the separation block on the outer shell pushes the separation force receiving part to separate the transmission member from the transmission wheel, and the transmission member no longer rotates, and the detected part completes the detection signal transmission process. The transmission member is used as an intermediate member, which will not affect the rotation of the transmission wheel. The transmission wheel will no longer produce a jamming phenomenon during the signal transmission, and can quickly and smoothly transmit the detection signal. In addition, the detection signal transmission mechanism can realize detection signal transmission using a simple structure, which significantly reduces the production cost.

[0009] Optionally, a first sawtooth portion is provided on a side of the transmission wheel facing the transmission member, and a second sawtooth portion is provided on a side of the transmission member facing the transmission wheel, and the transmission member is synchronously connected to the transmission wheel through the engagement between the first sawtooth portion and the second sawtooth portion.

[0010] Optionally, a coupling disc is provided at one end of the transmission member facing the transmission wheel, the second serration portion is provided on the coupling disc, a limiting notch is provided on the outer edge of the coupling disc, a first limiting portion is provided on the outer shell, and the first limiting portion is located on the side of the coupling disc facing away from the transmission wheel, and when the separation block separates the transmission member from the transmission wheel, the first limiting portion is buckled into the limiting notch.

[0011] Optionally, the housing has a movable hole, and the detected component is arranged in the movable hole and can move in the movable hole.

[0012] Optionally, the detected member has a force-bearing portion, the force-bearing portion is arranged on the movement path of the force-applying portion, and the force-applying portion pushes the force-bearing portion to make the detected member move in a direction away from the transmission member.

[0013] Optionally, a reset elastic member is provided between the housing and the detected member, and the reset elastic member uses elastic force to move the detected member toward a direction close to the transmission member.

[0014] Optionally, the transmission member has a limiting groove at one end away from the transmission wheel, and the outer shell also has a second limiting portion located in the extension direction of the transmission member axis. When the separation block separates the transmission member from the transmission wheel, the second limiting portion is buckled into the limiting groove.

[0015] Optionally, the separation block has a separation slope, and when the separation force receiving portion moves onto the separation block, the separation slope pushes the separation force receiving portion to make the transmission member move axially away from the transmission wheel.

[0016] Optionally, the separation force receiving portion is provided with a guiding inclined surface capable of cooperating with the separation inclined surface.

[0017] To achieve the above-mentioned purpose, the present invention also provides a developing box, including: a driving force receiving component for receiving the driving force from the electronic photographic imaging device; the detection signal transmission mechanism as described above, wherein the driving force receiving component is arranged on the outer shell, the transmission wheel is transmission-connected to the driving force receiving component, the outer shell has a connecting shaft, and the transmission wheel and the transmission member are both arranged on the connecting shaft.

[0018] The developing box provided by the present invention has at least the following beneficial effects: the developing box has a simple structure and is easy to implement. When the driving force receiving component receives the driving force in the electronic photographic imaging device, the transmission member is synchronously driven to rotate through the transmission wheel. When the force-applying part of the transmission member touches the detected member, the detected member moves, and the detection mechanism in the electronic photographic imaging device is activated, and then the information is transmitted to the printer to determine whether the developing box is new or the printable amount of the developing box and the specifications of the developing box, etc. The overall structure is simple, which greatly reduces the production cost and eliminates the jamming phenomenon existing in the transmission of the toothless gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the structure of a developing box provided by an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the separation structure of the developing box provided in FIG.

[0022] Figure 3 for Figure 2 A partial enlarged schematic diagram of the developing box at A provided in;

[0023] Figure 4 for Figure 2 The structural diagram of the transmission parts provided in;

[0024] Figure 5 for Figure 2 A schematic diagram of the structure of the end cover of the housing provided in;

[0025] Figure 6 A schematic diagram of the structure of the detection signal transmission mechanism provided by an embodiment of the present invention when it is in an initial position;

[0026] Figure 7 A schematic diagram of the structure when the detection signal transmission mechanism provided by an embodiment of the present invention is located in the middle position;

[0027] Figure 8 A schematic diagram of the structure of the detection signal transmission mechanism provided by an embodiment of the present invention when it is in the final position;

[0028] Fig. 9 A schematic diagram of the structure of the developing box provided by an embodiment of the present invention with the end cover removed.

[0029] Among them, the reference numerals in the figure are:

[0030] The housing 100, the shell 110, the end cover 120, the separation block 130, the separation slope 131, the first limiting portion 140, the movable hole 150, the first locking portion 160, the connecting shaft 170, and the second limiting portion 180;

[0031] The detected part 200, the detection protrusion 210, the force-bearing part 220, and the second locking part 230;

[0032] Transmission wheel 300, first sawtooth portion 310;

[0033] Transmission member 400, force applying portion 410, separation force receiving portion 420, guide inclined surface 421, second sawtooth portion 430, engagement plate 440, limiting notch 450, limiting groove 460, column sleeve 470;

[0034] Reset elastic member 500;

[0035] The driving force receiving member 600 , the driving gear 610 , the transition gear 620 , and the stirring gear 630 . DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] The detection signal transmission mechanism provided in the embodiment of the first aspect of the present invention will now be described with reference to the accompanying drawings.

[0040] See also Figures 1 to 9A detection signal transmission mechanism includes a housing 100, a detected member 200, a transmission wheel 300 and a transmission member 400. The detected member 200 is movably arranged on the housing 100 and can move on the housing 100. The movement mode can be swinging, sliding or other active forms. The detected member 200 is in contact with or connected to a detection mechanism in an external electronic photographic imaging device. When the detected member 200 moves on the housing 100, the detection signal is transmitted to the detection mechanism. The transmission wheel 300 is rotatably connected to the housing 100 through a connecting shaft 170, and is used to receive a driving force from a driving force receiving member 600. , and rotate on the housing 100, the transmission member 400 is coaxially arranged with the transmission wheel 300 and is synchronously connected, that is, the transmission member 400 and the transmission wheel 300 are arranged on the same connecting shaft 170, and can rotate on the connecting shaft 170, and a synchronous detachable structure is provided between the transmission member 400 and the transmission wheel 300, and the transmission wheel 300 transmits the driving force to the transmission member 400 through the synchronous detachable structure and drives the transmission member 400 to rotate, when the transmission member 400 moves axially on the connecting shaft 170 away from the transmission wheel 300, the transmission member 400 is separated from the transmission wheel 300 and no longer receives the driving force from the transmission wheel 300. The transmission member 400 has at least one force applying part 410, each force applying part 410 is circumferentially arranged on the transmission member 400 and radially protrudes outward, and is used to push the detected member 200 to move on the housing 100, so as to transmit the detection signal to the detection mechanism. It should be noted that the force-applying part 410 may be one, two or more than two, and the number and the push angle thereof may be reasonably designed according to the number and duration of the detection signal of the detection mechanism, so as to facilitate the detection by the detection mechanism. In the present embodiment, two force-applying parts 410 are provided, one of which is a short-time force-applying part and the other is a long-time force-applying part. The short-time force-applying part has a shorter push time against the detected part 200, and the long-time force-applying part has a longer push time against the detected part 200. The push time of the two is determined according to the protruding angle of the force-applying part 410 on the transmission member 400.

[0041] Among them, the housing 100 is provided with a separation block 130, and the transmission member 400 is also provided with a separation force receiving portion 420. When the transmission member 400 rotates synchronously with the transmission wheel 300, the separation force receiving portion 420 rotates around the rotation axis of the transmission member 400, and the separation block 130 is arranged on the movement path of the separation force receiving portion 420. Since the housing 100 is relatively fixed, the separation force receiving portion 420 will pass through the separation block 130 during the rotation process. The separation block 130 pushes the separation force receiving portion 420 to move axially away from the transmission wheel 300 during the contact process of the separation force receiving portion 420, thereby separating the transmission member 400 from the transmission wheel 300. At this time, the transmission member 400 is no longer synchronously connected with the transmission wheel 300. It should be understood that the separation block 130 is arranged at the position after each force applying portion 410 pushes the detected member 200, and separates the transmission member 400 from the transmission wheel 300 after each force applying portion 410 completes the action.

[0042] See also Figures 6 to 8 The operation process of the detection signal transmission mechanism is as follows: after the transmission wheel 300 receives the driving force, it synchronously drives the transmission member 400 to rotate, and each force-applying part 410 pushes the detected member 200 in turn, and transmits a detection signal to the detection mechanism each time the detected member 200 pushes, until all the force-applying parts 410 have completed the force application, the detection signal is transmitted, the separation block 130 pushes the separation force receiving part 420 to move axially outward, the transmission member 400 is separated from the transmission wheel 300, the transmission member 400 no longer rotates, and the detection signal transmission process is completed.

[0043] Compared with the prior art, the detection signal transmission mechanism of the present invention eliminates the toothless gear structure, and transmits the driving force for detection through a separately arranged transmission member 400. When the transmission wheel 300 receives the driving force and rotates, the transmission wheel 300 drives the transmission member 400 to rotate synchronously, and each force-applying part 410 on the transmission member 400 pushes the detected part 200 in turn, so that the detected part 200 moves and transmits the corresponding detection signal to the detection mechanism of the electronic photographic imaging device. After all the force-applying parts 410 have finished acting, the separation block 130 on the housing 100 pushes the separation force receiving part 420 to separate the transmission member 400 from the transmission wheel 300, and the transmission member 400 no longer rotates, and the detected part 200 completes the detection signal transmission process. With the transmission member 400 as an intermediate member, the rotation of the transmission wheel 300 will not be affected, and the transmission wheel 300 will no longer produce a jamming phenomenon during the signal transmission, and the detection signal can be transmitted quickly and smoothly. In addition, the detection signal transmission mechanism of the present invention can realize the detection signal transmission by using a simple structure, which significantly reduces the production cost.

[0044] In one embodiment of the present invention, referring to Figure 3A first serrated portion 310 is provided on the side of the transmission wheel 300 facing the transmission member 400. The first serrated portion 310 is evenly arranged around the rotation axis of the transmission wheel 300 and inclined in the same direction. A second serrated portion 430 is provided on the side of the transmission member 400 facing the transmission wheel 300. The second serrated portion 430 is evenly arranged around the rotation axis of the transmission member 400 and inclined in the same direction as the serrated portion, and the inclination angle is the same, so that the second serrated portion 430 can mesh with the first serrated portion 310. The transmission member 400 is synchronously connected with the transmission wheel 300 through the meshing between the first serrated portion 310 and the second serrated portion 430. The first serration portion 310 and the second serration portion 430 are one of the preferred structures of the synchronously separable structure between the transmission member 400 and the transmission wheel 300. The two are synchronously connected through serration meshing, and the connection is tight and the synchronization degree is high. In addition, clutch transmission can be realized between the transmission wheel 300 and the transmission member 400 through other synchronously separable structures, which can also achieve the technical effect of synchronous separability in the present invention.

[0045] In another embodiment of the present invention, refer to Figure 4 The end of the transmission member 400 facing the transmission wheel 300 is provided with a coupling plate 440, and the second sawtooth portion 430 is provided on the coupling plate 440. The coupling plate 440 provides a location for the second sawtooth portion 430 to be installed, which can improve the combination stability of the first sawtooth portion 310 and the second sawtooth portion 430 between the transmission member 400 and the transmission wheel 300. A limiting notch 450 is provided on the outer edge of the coupling plate 440, and a first limiting portion 140 is provided on the housing 100. The first limiting portion 140 is located on the side of the coupling plate 440 facing away from the transmission wheel 300. When the separation block 130 separates the transmission member 400 from the transmission wheel 300, the first limiting portion 140 is buckled into the limiting notch 450. When the transmission member 400 rotates to the separation point, that is, when the separation block 130 contacts the separation force receiving portion 420, the first limiting portion 140 is located in the axial outer direction of the limiting notch 450, and the transmission member 400 is axially separated from the transmission wheel 300 under the action of the separation block 130, and the first limiting portion 140 is buckled into the limiting notch 450, thereby restricting the transmission member 400 from rotating any further, preventing the transmission member 400 from freely rotating on the connecting shaft 170 due to vibration or inertia and re-contacting and pushing the detected member 200.

[0046] In another embodiment of the present invention, the housing 100 is provided with an active hole 150, which is a long hole provided on the housing 110, and the detected member 200 is provided in the active hole 150 and can move in the active hole 150. The detected member 200 has a detection protrusion 210, which is used to push against the external detection mechanism and transmit the detection signal. In this embodiment, the detected member 200 is rotatably arranged in the active hole 150 and performs a swinging motion, and the detection protrusion 210 pushes the detection component on the detection mechanism. In addition, the signal transmission motion of the detected member 200 can also be a linear motion. The detected member 200 is slidably connected to the housing 100, and each force application part 410 pushes the detected member 200 to move linearly, transmitting the detection signal to the detection mechanism.

[0047] Specifically, the detected part 200 has a force-bearing part 220, which is arranged on the movement path of the force-applying part 410, close to or in contact with the circumferential outer wall of the transmission part 400. The force-applying part 410 pushes the force-bearing part 220 to make the detected part 200 move in a direction away from the transmission part 400, thereby transmitting the action signal to the detection mechanism.

[0048] Furthermore, a resetting elastic member 500 is provided between the housing 100 and the detected member 200, and the two ends of the resetting elastic member 500 are respectively connected to the housing 100 and the detected member 200, so as to use elastic force to make the detected member 200 move in the direction close to the transmission member 400. In this embodiment, the resetting elastic member 500 is a tension spring, the housing 100 has a first locking portion 160, and the detected member 200 has a second locking portion 230. The first end of the resetting elastic member 500 hooks the first locking portion 160, and the second end hooks the second locking portion 230. When the detected member 200 is pushed by the force applying portion 410, the resetting elastic member 500 is stretched and drives the detected member 200 to reset with the stored elastic potential energy, so that the detected member 200 can perform the next signal transmission action.

[0049] In another embodiment of the present invention, a transmission member 400 has a limiting groove 460 at one end away from the transmission wheel 300, and a column sleeve 470 is provided on the transmission member 400 to be inserted into the connecting shaft 170, and the limiting groove 460 is located on the outer end of the column sleeve 470. The housing 100 also has a second limiting portion 180 located in the extension direction of the axis of the transmission member 400, and the second limiting portion 180 is used to match with the limiting groove 460. When the separation block 130 separates the transmission member 400 from the transmission wheel 300, the second limiting portion 180 is axially buckled into the limiting groove 460 to limit the separated transmission member 400. The second limiting portion 180 and the limiting groove 460 structure in this embodiment can be combined with the first limiting portion 140 and the limiting notch 450 structure to double limit the separated transmission member 400, so as to strengthen the position limiting effect on the transmission member 400.

[0050] In another embodiment of the present invention, the separation block 130 is provided with a separation slope 131, which is inclined outward along the axial direction of the transmission member 400. The direction of the separation slope 131 caters to the movement direction of the separation force receiving part 420. When the separation force receiving part 420 moves onto the separation block 130, the separation force receiving part 420 contacts the separation slope 131. Since the separation block 130 is relatively stationary, the separation slope 131 pushes the separation force receiving part 420 to make the transmission member 400 gradually move axially away from the transmission wheel 300 and finally separate from the transmission wheel 300.

[0051] Furthermore, the separation force receiving portion 420 is provided with a guiding bevel 421 which can cooperate with the separation bevel 131. The inclination angle of the guiding bevel 421 is the same as or similar to the inclination angle of the separation bevel 131. When the separation force receiving portion 420 abuts against the separation block 130, the guiding bevel 421 is in full contact with the separation bevel 131. The separation force receiving portion 420 gradually moves axially outward along the separation bevel 131 through the guiding bevel 421. The guiding bevel 421 plays a guiding role in the movement process, and the engagement between the bevels can increase the axial movement distance of the transmission member 400, so that the transmission member 400 is fully separated from the transmission wheel 300.

[0052] See also Figure 1 and Fig. 9 , the developing box of the second embodiment of the present invention is described below.

[0053] A developing box includes a driving force receiving component 600 and a detection signal transmission mechanism of an embodiment of the first aspect of the present invention, wherein the driving force receiving component 600 is used to receive the driving force on the electronic photographic imaging device, the driving force receiving component 600 is arranged on the shell 100, the transmission wheel 300 is connected to the driving force receiving component 600 by transmission, and the transmission wheel 300 receives the driving force through the driving force receiving component 600, wherein the driving force receiving component 600 is a gear device, including a driving gear 610, a transition gear 620 and a stirring gear 630, the shell 100 includes a shell 110 and an end cover 120 fixedly assembled on one side of the shell 110, one side of the shell 110 has a connecting shaft 170, the transmission wheel 300 and the transmission member 400 are axially arranged in sequence on the connecting shaft 170, and the transmission wheel 300 is rotatably connected to the shell 100 through the connecting shaft 170. Specifically, the driving force receiving member 600 is arranged on the housing 110 and is located on the same side of the connecting shaft 170, the stirring gear 630 is meshed with the transmission wheel 300, the driving gear 610 receives the driving force located on the electronic photographic imaging device, and the developing box also includes a stirring frame rotatably arranged in the housing 110, and the stirring gear 630 is arranged on the stirring frame. After receiving the driving force, the stirring frame is driven to rotate so that the stirring frame stirs the developer inside the housing 110. The separation block 130, the first limiting portion 140, the second limiting portion 180 and the first locking portion 160 in the embodiment of the first aspect of the present invention are arranged on the end cover 120, and the end cover 120 is covered on one side of the housing 110, and the transmission wheel 300, the transmission member 400 and the driving force receiving member are wrapped on the same side of the housing 110.

[0054] Compared with the prior art, the developer box has a simple structure and is easy to implement. When the driving force receiving member 600 receives the driving force in the electronic photographic imaging device, the transmission member 400 is synchronously driven to rotate through the transmission wheel 300. When the transmission member 400 uses the force applying part 410 to touch the detected member 200, the detected member 200 moves, and the detection mechanism in the electronic photographic imaging device is activated, and then the information is transmitted to the printer to determine whether the developer box is new or the printable amount of the developer box and the specifications of the developer box, etc. The overall structure is simple, which greatly reduces the production cost and eliminates the jamming phenomenon existing in the transmission of the toothless gear.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection signal transmission mechanism, characterized in that ,include: shell; A detected part is movably arranged on the housing; A transmission wheel, rotatably connected to the housing, and used to receive the driving force from the driving force receiving member; A transmission member is coaxially arranged with the transmission wheel and synchronously connected, and the transmission member has at least one force-applying portion, each of the force-applying portions is circumferentially arranged on the transmission member and is used to push the detected member to move on the housing. Wherein, the housing is provided with a separation block, the transmission member is also provided with a separation force receiving portion, the separation block is arranged on the movement path of the separation force receiving portion and can push the separation force receiving portion to separate the transmission member from the transmission wheel; The transmission wheel is provided with a first sawtooth portion on a side facing the transmission member, and the transmission member is provided with a second sawtooth portion on a side facing the transmission wheel. The transmission member is synchronously connected with the transmission wheel through the meshing between the first sawtooth portion and the second sawtooth portion.

2. The detection signal transmission mechanism according to claim 1, characterized in that: A coupling disc is provided at one end of the transmission member facing the transmission wheel, the second serration portion is provided on the coupling disc, a limiting notch is provided on the outer edge of the coupling disc, a first limiting portion is provided on the outer shell, and the first limiting portion is located on the side of the coupling disc facing away from the transmission wheel. When the separation block separates the transmission member from the transmission wheel, the first limiting portion is buckled into the limiting notch.

3. The detection signal transmission mechanism according to claim 1, characterized in that: The housing is provided with a movable hole, and the detected component is arranged in the movable hole and can move in the movable hole.

4. The detection signal transmission mechanism according to claim 3, characterized in that: The detected member is provided with a force-bearing portion, which is arranged on the movement path of the force-applying portion. The force-applying portion pushes the force-bearing portion to make the detected member move in a direction away from the transmission member.

5. The detection signal transmission mechanism according to claim 4, characterized in that: A resetting elastic member is provided between the housing and the detected member, and the resetting elastic member uses elastic force to make the detected member move toward a direction close to the transmission member.

6. The detection signal transmission mechanism according to claim 1, characterized in that: The transmission member has a limiting groove at one end away from the transmission wheel, and the housing also has a second limiting portion located in the extension direction of the transmission member axis. When the separation block separates the transmission member from the transmission wheel, the second limiting portion is buckled into the limiting groove.

7. The detection signal transmission mechanism according to claim 1, characterized in that: The separation block is provided with a separation slope. When the separation force receiving portion moves onto the separation block, the separation slope pushes the separation force receiving portion to make the transmission member move axially away from the transmission wheel.

8. The detection signal transmission mechanism according to claim 7, characterized in that: The separation force receiving portion is provided with a guiding inclined surface which can cooperate with the separation inclined surface.

9. A developing box, characterized in that: include: A driving force receiving member for receiving a driving force from an electrophotographic imaging device; According to the detection signal transmission mechanism as described in any one of claims 1 to 8, the driving force receiving component is arranged on the outer shell, the transmission wheel is transmission-connected with the driving force receiving component, the outer shell has a connecting shaft, and the transmission wheel and the transmission member are both arranged on the connecting shaft.

Images