Developing box

Abstract

The utility model discloses a developing box. The developing box comprises a shell, a developing roller; a coupling gear; a transmission gear provided at the first end of the housing in the left-right direction, the transmission gear being rotatable by receiving a driving force of the coupling gear; at least one part of the transmission rod is arranged at the first end of the shell in the left-right direction; the shifting bulge is arranged at the second end of the shell in the left-right direction and can move in response to the movement of the transmission rod; the developing box further comprises a forced pushing bulge arranged on the driving side protecting cover; the developing box further comprises a transmission part which is separated from the transmission gear, and the transmission part can rotate in response to rotation of the transmission gear and can be pushed by the pushing protrusion to move in the left-right direction.

Description

Technical Field

[0001] The utility model relates to a detachable developing box which is installed in an imaging device. The imaging device is an electronic photographic imaging device. Background Art

[0002] A developing box is known in the art, such as Chinese patent publication number CN205450563U, which is provided with a detected component, the detected component has a protrusion, and the imaging device is provided with a detection unit. Specifically, when the developing box is installed in the imaging device and the developing box subsequently receives a driving force from the imaging device, the detected component rotates, and the rotation of the detected component causes the protrusion to shift between a contact state in which the protrusion contacts the detection unit and a non-contact state in which the protrusion does not contact the detection unit. This displacement of the protrusion between the contact state and the non-contact state or the number of protrusions indicates the specification of the developing box. Utility Model Content

[0003] The utility model further develops the prior art and provides a developing box, the toggle member of which can also realize the function of toggle the detection body in the imaging device to move to indicate the specification of the developing box without rotating. Another aspect of the utility model provides a more miniaturized developing box. The utility model is realized by the following technical solutions:

[0004] A developing box, comprising:

[0005] A housing having a first end and a second end opposite to each other in the left-right direction, wherein a driving side protective cover is further provided at the first end of the housing;

[0006] a developing roller supported on the housing and rotatable about a developing roller rotation axis extending in the left-right direction; a coupling gear disposed at the first end of the housing in the left-right direction, at least a portion of the coupling gear being covered by the driving side protective cover;

[0007] A transmission gear, disposed at the first end of the housing in the left-right direction, the transmission gear being rotatable by receiving a driving force from the coupling gear;

[0008] a transmission rod, at least a portion of which is disposed at the first end of the housing in the left-right direction;

[0009] a toggle protrusion, which is disposed at the second end of the housing in the left-right direction and is movable in response to movement of the transmission rod;

[0010] The developing box also includes a pushing protrusion arranged on the driving side protective cover; the developing box also includes a transmission member separately arranged from the transfer gear, the transmission member can rotate in response to the rotation of the transfer gear, and can be pushed by the pushing protrusion to move along the left and right direction.

[0011] Furthermore, the forced pushing protrusion is integrally formed with the driving side protective cover.

[0012] Furthermore, the rotation axis of the transmission member and the rotation axis of the transfer gear are coaxial.

[0013] Further, in the left-right direction, a forced pushing protrusion is provided on one side of the transmission member facing the forced pushing protrusion, and the forced pushing protrusion can be forced pushed by the forced pushing protrusion.

[0014] Furthermore, the transfer gear is provided with a slide groove extending around the rotation axis of the transfer gear, and at least a portion of the forced pushing protrusion in the left-right direction can pass through the slide groove and be exposed on the side of the transfer gear opposite to the forced pushing protrusion.

[0015] Further, before the developing box is detected, in the rotation direction of the transfer gear, the forced pushing protrusion is located on the downstream side of the slide groove.

[0016] Further, when the developing box is detected, in the rotation direction of the transfer gear, the forced-pushing protrusion is located on the upstream side of the slide groove and can be forced to rotate by the inner surface of the slide groove.

[0017] Furthermore, the developing box also includes an elastic component arranged between the shell and the transmission rod, and the elastic force generated by the elastic component can be applied to the transmission rod so that one end of the transmission rod maintains contact with the transmission member.

[0018] The utility model provides a new developer box detection component, which adopts a protrusion structure design to transmit driving force, so that the transmission component can move in the left and right directions. Compared with the existing gear transmission structure, it has a smaller space, so the developer box can be made thinner and smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the developing box in Embodiment 1 of the present utility model;

[0020] Figure 2 It is a schematic diagram of a developing box at a certain angle in which the driving side protective cover in Embodiment 1 of the utility model is decomposed from the developing box;

[0021] Figure 3It is a schematic diagram of the developing box from another angle in which the driving side protective cover in Embodiment 1 of the utility model is decomposed from the developing box;

[0022] Figure 4 This is a schematic diagram of the gear train decomposition in Embodiment 1 of the present utility model;

[0023] Figure 5 It is a schematic diagram of the gear train in Embodiment 1 of the present utility model;

[0024] Figure 6 This is a schematic diagram of the toggle member in Embodiment 1 of the utility model being located at a position where the detection object of the imaging device is not toggled;

[0025] Figure 7 This is a schematic diagram of the position of the toggle member in Embodiment 1 of the utility model where the toggle member is located to toggle the detection body of the imaging device;

[0026] Figure 8 This is a schematic diagram of the matching relationship between the stirring frame gear and the transmission gear in Example 1 of the utility model;

[0027] Fig. 9 It is a schematic diagram of the transmission gear in Embodiment 1 of the present utility model;

[0028] Fig.10 It is an exploded schematic diagram of the transmission component and the toggle member in Embodiment 1 of the present utility model;

[0029] Fig.11 It is a schematic diagram of the forced pushing portion of the transmission component in Embodiment 1 of the utility model abutting against the first abutting surface;

[0030] Fig.12 It is a schematic diagram of the forced pushing portion of the transmission component in Embodiment 1 of the utility model abutting against the second abutting surface;

[0031] Fig.13 It is a schematic diagram showing that the forced pushing portion of the transmission component in Embodiment 1 of the utility model abuts between the first forced pushing portion and the second forced pushing portion;

[0032] Fig.14 It is a schematic diagram of the forced pushing portion of the transmission component in Embodiment 1 of the utility model when the guide surface of the second forced pushing portion abuts against each other;

[0033] Fig.15 This is a schematic diagram of the forced pushing portion of the transmission component in Embodiment 1 of the present utility model when the forced pushing portion abuts against the forced pushing surface of the second forced pushing portion;

[0034] Fig.16 It is a schematic diagram of a developing box in Embodiment 2 of the present utility model;

[0035] Fig.17 It is a schematic diagram of the developing box after a part of the protective cover in Example 2 of the utility model is cut away;

[0036] Fig.18 It is a left side exploded schematic diagram of the developing box in Embodiment 2 of the present utility model;

[0037] Fig.19 This is a schematic diagram of the developing box after the protective cover in Embodiment 2 of the utility model is rotated by a certain angle;

[0038] Fig. 20 It is a schematic diagram of the exploded structure of the left side of the developing box in Embodiment 2 of the present utility model;

[0039] Fig.21 is the positional relationship between the movable member and the transmission gear when the movable member is in the first position in Embodiment 2 of the utility model;

[0040] Fig. 22 This is the positional relationship between the movable member and the transmission gear when the movable member is in the second position in Example 2 of the utility model. DETAILED DESCRIPTION

[0041] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings. 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.

[0042] Example 1

[0043] In order to facilitate a better description and understanding of the present invention, the direction of the developing box will be specifically defined; the length direction of the developing box is the left-right direction; the coupling gear 604 is arranged on the left side of the developing box in the left-right direction; the developing roller 648 and the transfer gear 614 are arranged in the front-to-back direction, and the front-to-back direction is perpendicular to the left-to-right direction; the up-down direction is perpendicular to both the front-to-back direction and the left-to-right direction.

[0044] like Figure 1-15As shown, a developing box in the utility model is shown, which can be detachably installed in a drum box with a photosensitive drum, and the two can be installed as a whole in an imaging device with a detection body; wherein the developing box includes a shell 601, the shell 601 has a developer accommodating portion that can accommodate a developer, the shell 601 also includes a driving side cover 619 located on the left side of the shell 601, and a developing roller, a powder feeding roller and a stirring frame rotatably supported on the shell 601; first, the partial structure of the left end of the developing box will be described, and a gear that can drive the developing roller, the powder feeding roller and the stirring frame to rotate is provided at the left end of the developing box The gear train includes a coupling gear 604 that can receive the driving force of the imaging device to rotate, a developing roller gear 605 connected to one end of the developing roller 671, a powder feeding roller gear 638 connected to one end of the powder feeding roller 672, and a stirring frame gear 606 connected to one end of the stirring frame 673. The coupling gear 604 can drive the developing roller gear 605 to rotate so that the developing roller gear 605 can drive the developing roller 671 to rotate coaxially. The coupling gear 604 can drive the powder feeding roller gear 638 to rotate so that the powder feeding roller gear 638 can drive the powder feeding roller 672 to rotate coaxially. The developing box also includes a coupling gear 604 connected to the coupling gear 604. The idler wheel 637 between the gear 604 and the stirring frame gear 606, the stirring frame gear 606 can receive the driving force from the coupling gear 604 through the idler wheel 637, and the transfer gear 614 meshed with the stirring frame gear 606, that is, the transfer gear 614 can receive the driving force of the coupling gear 604 transmitted through the idler wheel 637 and the stirring frame gear 606 and rotate; a driving side protective cover 619 covering at least a part of the above-mentioned gear system is also provided at the left end of the housing 601, and an exposure hole 619b that can expose at least a part of the transfer gear 614 is provided on the driving side protective cover 619, It can facilitate the operator to reset the transfer gear 614 without removing the drive side cover 619, thereby improving the reset efficiency; the transfer gear 614 is installed on the drive side cover 619 through the elastic buckle 619a arranged on the drive side cover 619; the developer box also includes an electrode 648 spanning the left and right ends of the shell 601, that is, at least a part of the electrode 648 is located on the left and right sides of the shell 601, and the electrode 648 can receive power from the power supply component in the imaging device and be electrically connected to the developing roller 671 to provide power to the developing roller 671 to ensure the printing of the developing box.

[0045] The developer box also includes a transmission component 623 that spans the left and right ends of the shell 601 and can move in the left and right directions relative to the shell 601. That is, at least a part of the transmission component 623 is located on the left side of the shell 601, and at least a part is located on the right side of the shell 601. In the direction intersecting the left and right directions, the electrode 648 is located between the developing roller 648 and the transmission component 623. Preferably, the transmission component 623 is a rod, that is, a transmission rod. The transmission component 623 is arranged outside the developer containing portion of the shell 601 to avoid the developer from being damaged. The developer in the developer holding portion interferes with the movement of the transmission component 623 and causes problems such as jamming. The left end of the transmission component 623 abuts against the transfer gear 614, and can move rightward in the left-right direction in response to the rotation of the transfer gear 614. The transmission component 623 includes a main body part 623b extending in the left-right direction and a forced pushing part 623a located at the left end part of the main body part 623b. The rotation axis of the main body part 623b and the transfer gear 614 are offset, and the forced pushing part 623a can abut against the transfer gear 614.

[0046] Furthermore, an elastic member 631 is provided between the shell 601 and the transmission component 623. The elastic member 631 can force the transmission component 623 to move from right to left, so as to reset the transmission component 623 to its initial position after moving from left to right. That is, after the transmission component 623 responds to the rotation of the transfer gear 614, the transmission component 623 can overcome the elastic force of the elastic member 631 and move from left to right. Preferably, one end of the elastic member 631 abuts against the shell 601, and the other end abuts against the transmission component 623.

[0047] Specifically, the transmission gear 614 includes a toothed portion 614a1 and a toothless portion 614a2 arranged in the circumferential direction thereof, the toothed portion 614a1 has a longer extension length in the circumferential direction of the transmission gear 614 than the toothless portion 614a2, and when the developing cartridge is used as a new cartridge, the toothless portion 614a2 and the toothed portion of the stirring rack gear 606 face each other; further, a driven portion 614b is arranged on the side of the transmission gear 614 facing the housing 601, and the driven portion 614b is arranged on the side of the transmission gear 614 facing the housing 601. 14b is configured as a protrusion, i.e., a driven protrusion. The driven portion 614b has an inclined surface which is inclined relative to the left and right directions and faces the downstream side of the transmission gear 614 in the rotation direction of the transmission gear 614. Correspondingly, the stirring frame gear 606 is provided with a driving portion 606a facing the right end of the developing box. The driving portion 606a is configured as a protrusion, i.e., a driving protrusion. When the developing box is a new box, the driving portion 606a does not contact the driven portion 614b and is spaced a certain distance apart in the rotation direction. Angle setting, after the stirring frame gear 606 receives the rotational driving force of the coupling gear 604 and starts to rotate, the driving portion 606a located on the stirring frame gear 606 will contact the driven portion 614b of the transmission gear 614 after rotating a certain angle, so that the transmission gear 614 is driven to rotate in the counterclockwise direction (when viewed from left to right), and before the driving portion 606a and the driven portion 614b are disengaged, the teeth of the stirring frame gear 606 will mesh with the toothed portion 614a1 of the transmission gear 614, even if the driving portion 606a and the driven portion 614b are disengaged later, the transmission gear 614 can still be driven to rotate through the meshing of the toothed portion 614a1 with the teeth of the stirring frame gear 606; therefore, it can be known that after the stirring frame gear 606 of the developing box is driven to rotate, it will not immediately drive the transmission gear 614 to rotate, but will drive the transmission gear 614 to start rotating after it rotates a certain angle (that is, after a period of time). According to the description of the above structure, it can be known that the transmission gear 614 can be driven to rotate by the engagement of the toothed portion 614a1 with the toothed portion of the stirring frame gear 606, but after it rotates a certain angle, the toothed portion 614a1 will be disengaged from the stirring frame gear 606, and at this time, the toothless portion 614a2 and the stirring frame gear 606 face each other again, and the transmission gear 614 will not be able to be driven to rotate. That is to say, when the developing box is used as a new box, the transmission gear 614 remains engaged with the stirring frame gear 606 and can be driven to rotate by it until the toothed portion 614a1 of the transmission gear 614 is disengaged from the toothed portion of the stirring frame gear 606 and can no longer be driven to rotate.

[0048] Furthermore, the transmission gear 614 also includes a first forced pushing portion 661, a second forced pushing portion 662, a third forced pushing portion 663 and a fourth forced pushing portion 664 which are sequentially arranged along the rotation direction, wherein the first forced pushing portion 661 and the second forced pushing portion 664 are integrally arranged, the second forced pushing portion 662, the third forced pushing portion 663 and the fourth forced pushing portion 664 are arranged at intervals, and the first forced pushing portion 661, the second forced pushing portion 662, the third forced pushing portion 663 and the fourth forced pushing portion 664 are arranged closer to the rotation axis of the transmission gear in the radial direction relative to the driven portion 614b; specifically, the first forced pushing portion 661 is provided with a first abutting surface 661a and a second abutting surface 661b which are adjacent to each other in the rotation direction, and the first abutting surface 661a is at the radial direction of the transmission gear 614. It is arranged on the downstream side of the second abutting surface 661b in the rotation direction, and the two have approximately the same height from the first surface of the transfer gear 614 in the left-right direction. The first abutting surface 614a is arranged in the groove structure of the free end of the first forced pushing portion 661; the second forced pushing portion 662 includes a guide surface 662a and a forced pushing surface 662b that are arranged to abut each other. In the rotation direction of the transfer gear 614, the guide surface 662a is arranged on the upstream side of the transfer gear 614, and the guide surface 662a is constructed as an inclined surface that is inclined relative to the left-right direction and faces the downstream side in the rotation direction of the transfer gear 614. The forced pushing surface 662b is a plane that intersects the left-right direction. The third forced pushing portion 663 and the fourth forced pushing portion 664 have a similar structure to the second forced pushing portion 662, and will not be repeated here. Fig.11 As shown, when the developing box does not receive an external rotational driving force, the forced pushing portion 623a at the left end of the transmission component 623 abuts against the first abutting surface 614a to keep the transmission component 623 in a position where a toggle member 622 toggles the detection body of the imaging device, and because the forced pushing portion 623a abuts against the first abutting surface 614a located in the groove structure, the relative position relationship between the two can be maintained before the developing box is subjected to an external force, thereby avoiding positioning deviations between the transmission gear 614 and the transmission component 623 when the developing box is not detected by the imaging device, resulting in detection failure or even failure to be detected. Fig.12As shown, when the transmission gear 614 is driven to rotate in the counterclockwise direction, the forced pushing portion 623a of the transmission component 623 disengages from the first abutting surface 614a and goes out of the groove structure to abut against the second abutting surface 661b. Because the first abutting surface 661a and the second abutting surface 661b have approximately the same height in the left and right directions from the surface of the transmission gear 614 facing the shell 601, when the forced pushing portion 623a abuts against the second abutting surface 661b, the toggle member 622 of the transmission component 623 is still in the position of toggling the detection body of the imaging device. In other words, when the forced pushing portion 623a is in the process of successively abutting against the first abutting surface 661a and the second abutting surface 661b and being between the two, the toggle member 622 of the transmission component 623 is in the position of toggling the detection body of the imaging device. Therefore, even if The transmission gear 614 is driven to start rotating, and the detection body of the imaging device is still in the moved position. Only after the transmission gear 614 rotates a certain angle until it is disengaged from the second abutting surface 661b, the elastic force of the elastic component 631 abutting against the transmission component 623 is released, and the elastic component 631 will push the transmission component 623 to move to the left. At this time, the driving member 622 of the transmission component 623 will be out of contact with the detection body of the imaging device, and the imaging device will receive and record the detection signal. That is to say, before the forced pushing portion 623a of the transmission component 623 is disengaged from the second abutting surface 661b, the detection body of the imaging device is in a moved state. Therefore, there will be a period of time from the rotation of the stirring frame gear 606 to the stop of the detection body of the imaging device. Therefore, the developing box in this embodiment has the function of delayed detection.

[0049] Then, if Fig.13 As shown, after the forced pushing portion 623a of the transmission component 623 is separated from the second abutting surface 661b, the forced pushing portion 623a is moved to the left by the elastic force of the elastic member 631 and abuts between the first forced pushing portion 661 and the second forced pushing portion 662; Fig.14As shown, with the further rotation of the transmission gear 614, the forced pushing portion 623a of the transmission component 623 overcomes the elastic force of the elastic member 631 and, under the guidance of the guide surface 662a of the second forced pushing portion 662, the transmission component 623 gradually moves to the right until it abuts against the forced pushing surface 662b of the second forced pushing portion 662. The toggle member 622 of the transmission component 623 will toggle the detection body of the imaging device again, and the imaging device will receive the detection signal. Furthermore, the transmission gear 614 continues to rotate. The forced pushing portion 623a of the transmission component 623 is separated from the forced pushing surface 662b and moves to the left again under the elastic force of the elastic member 631 to abut between the second forced pushing portion 662 and the third forced pushing portion 663. Subsequently, the abutting and matching process between the transmission component 623 and the third forced pushing portion 663 is similar to that in the above embodiment and will not be repeated here. Furthermore, the angle between the plane where the guide surface 664a of the fourth forced pushing portion 664 is located and the left-right direction is smaller than the angle between the guide surface 664a of the second forced pushing portion 662 and the third forced pushing portion 663. In other words, the angle between the plane where the guide surface 664a of the fourth forced pushing portion 664 is located and the surface of the transmission gear 614 facing the shell 601 is greater than the angle between the plane where the guide surfaces of the second forced pushing portion 662 and the third forced pushing portion 663 are located and the surface of the transmission gear 614 facing the shell 601. In other words, the slope of the guide surface 664a of the fourth forced pushing portion 664 is greater than the slope of the guide surfaces of the second forced pushing portion 662 and the third forced pushing portion 663. This structure makes it possible for the transmission gear 614 to rotate until the guide surface 664a of the fourth forced pushing portion 664 abuts against the forced pushing portion 623a of the transmission component 623. Under the condition that the rotation speed of the transmission gear 614 remains unchanged, the transmission component 623 will climb along the guide surface 664a of the fourth forced pushing portion 664 at a faster speed and finally break away from the contact of the guide surface 664a. Therefore, the time interval for the toggle member 622 of the transmission component 623 to toggle the detection object of the imaging device again will be shortened. Fig.15 As shown, subsequently, the forced pushing portion 623a of the transmission component 623 contacts the forced pushing surface 664b of the fourth forced pushing portion 664. At this time, the tooth portion of the stirring frame gear 606 is disengaged from the toothed portion 614a1 of the transfer gear 614, and is opposite to the toothless portion 614a2 of the transfer gear 614, and the transfer gear 614 will stop rotating. It is worth mentioning that the forced pushing surface 664b of the fourth forced pushing portion 664 is also arranged in the groove structure, which can make the forced pushing portion 623a of the transmission component 623 abut against the groove structure after the detection of the developing box is completed, and the relative position relationship between the two can be maintained to position the transmission component 623, so as to avoid the two from being separated from each other.

[0050] Furthermore, the forced pushing portion 623a of the transmission component 623 is constructed to have an inclined surface 623a1. When the forced pushing portion 623a contacts the guide surfaces of the second forced pushing portion 662, the third forced pushing portion 663 and the fourth forced pushing portion 664, the inclined surface and the guide surfaces are opposite to each other and can contact each other, which will make the forced pushing portion 623a slide more smoothly and effectively prevent the problem of the two being stuck. Of course, the inclined surface can also be set on only one of them, and there is no limitation on this.

[0051] Further, a toggle member 622 (i.e., a toggle protrusion) is provided on the right side of the transmission member 623. That is, in the left-right direction, the transmission gear 614, the transmission member 623, and the toggle member 622 are arranged in sequence. The toggle member 622 is detachably connected to the right end of the transmission gear 614 through a snap structure, and can move in response to the movement of the transmission member 623. That is, when the second transmission member moves to the left, the toggle member 622 can move to the left, and when the transmission member 623 moves to the right, the toggle member 622 can move to the right. Therefore, the toggle member 622 can toggle the imaging device to the right. The detection body, and this assembly structure can also quickly install or disassemble the toggle member 622, thereby improving the efficiency of installation or disassembly. Of course, the two can also be assembled in a fitting manner such as interference fit, which is not limited. In addition, the transmission component 623 and the toggle member 622 can also be integrally formed, and only one set of molds is required for the production of the two, thereby reducing production costs. Moreover, the toggle portion 622b of the toggle member 622 is also constructed as an inclined surface, which is inclined relative to the left and right directions, so that the detection body of the imaging device can be toggled more smoothly, thereby avoiding the problem of jamming during toggling.

[0052] Example 2

[0053] Next, we will combine the Figure 16-22 The developing box in Example 2 of the utility model is introduced in detail. The similarities between the developing box in this Example 2 and the developing box in the above-mentioned embodiments are not repeated here. The difference lies in that the pushing portion (pushing protrusion) on the left side of the developing box, that is, the first pushing portion 761, the second pushing portion 762, the third pushing portion 763 and the fourth pushing portion 764 are arranged on the driving side cover 719 and are integrally formed with the driving side cover 719. The integrally formed setting helps to reduce the number of molds and reduce production costs. It is arranged in a manner facing the transfer component 723, and other corresponding structures are also changed accordingly, which will be described in detail below.

[0054] Specifically, the transmission gear 714 is a toothless gear as in the above-mentioned embodiment, and a slide groove 714c is further provided on the transmission gear 714, and the slide groove 714c penetrates the transmission gear in the left-right direction, and the slide groove 714c is an arcuate slide groove, and the arcuate slide groove is configured to be arranged around the rotation axis of the transmission gear 714, or it can be said that the arcuate slide groove is configured to extend in the rotation direction of the transmission gear 714; further, the developing box further includes a movable member 715 coaxially arranged with the transmission gear 714, that is, the rotation axes of the two are coaxial, and the movable member 715 is generally disc-shaped, At least a portion of it abuts against the right side of the transmission gear 714. A protrusion 715a (forced pushing protrusion) is provided on the movable member 715. The protrusion 715a is constructed as a protrusion protruding outward (i.e., to the left) from the left side of the movable member 715. The protrusion 715a can pass through the slide groove 714c on the transmission gear 714, so that at least a portion of the protrusion 715a protrudes to the left side of the transmission gear 714. Further, the protrusion 715a of the movable member 715 can be forced to rotate by the transmission gear 714. That is, the movable member 715 can respond to the transmission gear 714. 15 rotates due to the rotation of the transmission gear 714; before the transmission gear 714 is driven to rotate, the movable member 715 is in the first position. At this time, in the rotation direction M of the transmission gear 715, the protrusion 715a is located on the downstream side of the slide groove 714c. When the transmission gear 714 is driven to rotate along the rotation direction M, the protrusion 715a will gradually approach the upstream side of the slide groove 714c under the rotation of the transmission gear 714 until it abuts against the upstream side end surface of the slide groove 714c, and then it will be driven to rotate by the transmission gear 714. That is to say, when the transmission gear 714 just starts to rotate, due to Due to the existence of the slide groove 714c, the protrusion 715a will not be driven to rotate, but the protrusion 715a will be driven to rotate only after the transmission gear 714 rotates a certain angle (i.e., the angle swept by the slide groove 714c in the rotation direction of the transmission gear 714), that is, the movable part 715 will be driven to rotate. Therefore, the counting structure of the developing box in this embodiment has the function of delayed detection, and it can be known that it is different from the delayed counting structure in the above-mentioned embodiment, and is simpler and more stable than the delayed counting structure in the above-mentioned embodiment, and it is also more convenient to reset the counting structure.

[0055] In the developer box of this embodiment, the transmission component 723 is pushed by the elastic member 731 so that the forced pushing portion 723a thereon can stably abut against the right side of the movable member 715, and the movable member 715 is pushed by the elastic member 731 and has a tendency to move toward the left side of the developer box, that is, the movable member 715 has a tendency to move toward the side close to the transmission gear 714, and the two will maintain stable abutment. In this way, the protrusion 715a on the movable member 715 has a tendency to move toward the side close to the driving side cover 719. When the movable member 715 starts to rotate in response to the transmission gear 714 When rotating, the protrusion 715a on the movable part 715 can be abutted with the first pushing part 761, the second pushing part 762, the third pushing part 763 and the fourth pushing part 764 formed on the driving side cover 719 in sequence. During the abutting process, the movable part 715 can move back and forth in the left and right directions, so that the transmission component 723 abutting on the movable part 715 can overcome the elastic force of the elastic component 731 and move back and forth in the left and right directions, thereby completing the detection counting. As for how the structure at the right end of the transmission component 723 moves the detection body of the imaging device, it is generally the same as the structure in the above-mentioned embodiment 1, and will not be repeated here.

[0056] Beneficial Effects

[0057] The utility model provides a new developer box detection component, with multiple protrusions to transmit driving force, so that the transmission component can move in the left and right directions. Compared with the existing gear transmission structure, it has a smaller space, so the developer box can be made thinner and smaller.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A developing box, comprising: A housing having a first end and a second end opposite to each other in the left-right direction, wherein a driving side protective cover is further provided at the first end of the housing; a developing roller supported on the housing and rotatable about a developing roller rotation axis extending in the left-right direction; a coupling gear disposed at the first end of the housing in the left-right direction, at least a portion of the coupling gear being covered by the driving side protective cover; A transmission gear, disposed at the first end of the housing in the left-right direction, the transmission gear being rotatable by receiving a driving force from the coupling gear; a transmission rod, at least a portion of which is disposed at the first end of the housing in the left-right direction; a toggle protrusion, which is disposed at the second end of the housing in the left-right direction and is movable in response to movement of the transmission rod; It is characterized in that the developing box also includes a pushing protrusion arranged on the driving side cover; the developing box also includes a transmission member separately arranged from the transfer gear, the transmission member can rotate in response to the rotation of the transfer gear, and can be pushed by the pushing protrusion to move along the left and right direction.

2. The developing cartridge according to claim 1, characterized in that: The forced pushing protrusion is integrally formed with the driving side protective cover.

3. The developing cartridge according to claim 1, characterized in that: The rotation axis of the transmission member and the rotation axis of the transfer gear are coaxial.

4. The developing cartridge according to claim 1, wherein: In the left-right direction, a forced pushing protrusion is provided on one side of the transmission member facing the forced pushing protrusion, and the forced pushing protrusion can be forced by the forced pushing protrusion.

5. The developing cartridge according to claim 4, characterized in that: The transmission gear is provided with a slide groove extending around the rotation axis of the transmission gear, and at least a portion of the forced pushing protrusion in the left-right direction can pass through the slide groove and be exposed on a side of the transmission gear opposite to the forced pushing protrusion.

6. The developing cartridge according to claim 5, characterized in that: Before the developing cartridge is detected, the forced pushing protrusion is located on the downstream side of the slide groove in the rotation direction of the transmission gear.

7. The developing cartridge according to claim 5, characterized in that: When the developing cartridge is detected, the urged protrusion is located on the upstream side of the slide groove in the rotation direction of the transmission gear and can be urged to rotate by the inner surface of the slide groove.

8. The developing cartridge according to claim 1, wherein: The developing box further includes an elastic member disposed between the housing and the transmission rod, and an elastic force generated by the elastic member can be applied to the transmission rod so that one end of the transmission rod is kept in contact with the transmission member.

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