Transmission assembly, selenium drum and image forming equipment

Abstract

The invention relates to the technical field of image printing, in particular to a transmission assembly, a selenium drum and image forming equipment. The transmission assembly comprises a driving part and a power receiving part, the driving part is used for being installed on a driving module of the image forming equipment, the power receiving part is used for being installed on the selenium drum, the driving part is detachably connected with the power receiving part, and the driving part can drive the power receiving part to coaxially rotate. Wherein the driving piece is provided with a driving part, the power receiving piece is provided with a matching part, and the driving part is matched with the matching part in the axial direction of the transmission assembly. A first matching surface is arranged on the outer side wall of the driving part, a second matching surface is arranged on the inner side wall of the matching part, and the first matching surface and the second matching surface abut against each other in the rotating direction of the transmission assembly. In the rotating process of the transmission assembly, the first matching face and the second matching face can be locked in the axial direction of the transmission assembly, so that the power receiving piece generates axial pressing force on the driving piece, and the risk that the driving piece and the power receiving piece are disengaged in a high-speed operation scene is reduced.

Description

Technical Field

[0001] This application relates to the field of image printing technology, and more particularly to a transmission component, a toner cartridge, and an image forming apparatus. Background Technology

[0002] The toner cartridge is one of the core components of a printing device. As a single unit, it includes a photosensitive drum, charging roller, toner delivery roller, developing roller, and cleaning components. Most mainstream printing devices have a drive motor and drive head on the main unit, while the toner cartridge is installed within the main unit. The toner cartridge has a power receiver that connects to the drive head of the printing device. During printing, the drive motor generates power and, through the interaction of the drive head and power receiver, transmits this power to the toner cartridge, causing the internal rollers to rotate and thus completing the printing process.

[0003] Currently, the transmission methods for the drive head and power receiver include external gear meshing transmission, single-point or multi-point universal joint transmission, and coaxial engagement transmission. In high-speed operating scenarios, the above transmission methods may disengage, causing the toner cartridge to stop working and affecting work efficiency. Summary of the Invention

[0004] This application provides a transmission assembly, a toner cartridge, and an image forming apparatus, designed to reduce the risk of the drive component and the power receiver disengaging during transmission.

[0005] This application provides a transmission assembly in a first aspect, the transmission assembly comprising:

[0006] A driver, used to install a driver module in an image forming device;

[0007] A power receiver is used to install on a toner cartridge. The drive unit is detachably connected to the power receiver, and the drive unit can drive the power receiver to rotate coaxially.

[0008] The driving component is provided with a driving part, and the power receiving component is provided with a mating part. Along the axial direction of the transmission assembly, the driving part and the mating part are mated.

[0009] The outer side wall of the drive unit is provided with a first mating surface, and the inner side wall of the mating unit is provided with a second mating surface. The first mating surface and the second mating surface are surfaces that abut against each other along the rotation direction of the transmission assembly. During the rotation of the transmission assembly, the first mating surface and the second mating surface can be locked along the axial direction of the transmission assembly.

[0010] In this embodiment, when the driving member and the power receiving member cooperate along the axial direction of the transmission assembly, the driving part can cooperate with the cooperating part to realize the transmission between the driving member and the power receiving member. During the rotation of the transmission assembly in the working direction, the first cooperating surface and the second cooperating surface can be locked axially, so that the power receiving member generates an axial pressing force on the driving member, restricting the movement of the driving member and the power receiving member along the axis, realizing the axial locking of the driving member and the power receiving member, effectively reducing the risk of the driving member and the power receiving member disengaging in high-speed operation scenarios, and ensuring the stability of the image forming equipment.

[0011] In one possible design, along the transmission direction of the transmission assembly, both the first mating surface and the second mating surface are helical surfaces that rotate about the axis of the transmission assembly.

[0012] In this embodiment, the first mating surface and the second mating surface rotate at the same angle around the axis of the transmission assembly, and their rotation angles have no effect on the engagement between the driving part and the mating part. In this embodiment, since the first mating surface and the second mating surface adopt a helical surface design, when the driving member and the power receiving member rotate during transmission, the first mating surface and the second mating surface abut against each other. Due to their helical shape and the effect of friction, they can fit tightly together and will not easily disengage, thereby achieving axial self-locking between the driving member and the power receiving member.

[0013] In one possible design, the mating position between the first protrusion and the first recess has a corner portion;

[0014] Along the radial direction of the transmission assembly, the corner portion located at the edge position is an obtuse angle.

[0015] In this embodiment, by setting some corners of the mating positions of the drive unit and the mating unit to obtuse angles, the stress-bearing area of ​​the corners is increased, thereby reducing stress concentration at the corners, effectively reducing the risk of damage to the corners, extending the service life of the drive unit and the mating unit, and ensuring the stability of the transmission fit between the drive unit and the power receiving unit.

[0016] In one possible design, one of the driving part and the mating part is a first protrusion and the other is a first recess, with the first protrusion and the first recess engaging in a plug-in fit.

[0017] In this embodiment, when the driving member and the power receiving member cooperate, the first protrusion can be inserted into the first recess. When the driving member is driven to rotate, the outer side wall of the first protrusion abuts against the inner side wall of the first recess, and pushes the power receiving member to rotate, thereby realizing the transmission between the driving member and the power receiving member.

[0018] In this embodiment, the direct transmission between the driving component and the power receiving component is achieved through the cooperation of the first protrusion and the first recess. The structure is simple and compact, with low cost and high transmission efficiency.

[0019] In one possible design, the first protrusion is a trapezoidal protrusion, and the first recess is a trapezoidal groove.

[0020] At least two of each of the protrusions and grooves are provided, and at least two of the protrusions and at least two of the grooves are evenly distributed along the circumference of the transmission assembly.

[0021] In this embodiment, by setting the first protrusion and the first recess in a trapezoidal structure, the corners of the outer edges of the first protrusion and the first recess are obtuse angles. Compared to setting the first protrusion and the first recess in a triangular or square structure, the area of ​​the stress point at the corner is increased, resulting in more uniform stress distribution. Under the same torque transmission conditions, compared to setting the first protrusion and the first recess in a triangular structure, the maximum stress at the corner in this embodiment can be reduced by at least 40%. Simultaneously, setting the first protrusion and the first recess in a trapezoidal structure also increases the contact area between the first protrusion and the first recess, which is beneficial for the application of the transmission assembly in high-speed, high-torque scenarios.

[0022] In one possible design, one of the driving member and the power receiving member is provided with a second protrusion, and the other is provided with a second recess that can cooperate with the second protrusion. Both the second protrusion and the second recess are non-circular structures.

[0023] Along the axial direction of the transmission assembly, the second protrusion and the first recess are located on the same end face, and the second recess and the first protrusion are located on the same end face.

[0024] In this embodiment, by providing a matching second protrusion and a second recess on the driving member and the power receiving member, the contact surface of the driving member and the power receiving member is further increased, thereby increasing the transmission torque. Furthermore, by limiting the first protrusion and the second recess to be located on the same end face, and by ensuring that the recessed structures are all located on the same end face, the structural strength of the driving member and the power receiving member is guaranteed.

[0025] In one possible design, at least two of the grooves are connected along the radial direction of the transmission assembly; or,

[0026] Along the radial direction of the transmission assembly, at least two of the grooves are connected, and at least two of the protrusions are connected.

[0027] In this embodiment, the protrusions and grooves can also be set to two, three, four, etc.

[0028] For example, the first protrusion may be two protrusions in a trapezoidal structure with a gap between them, and the first recess may be two grooves in a trapezoidal structure connected to each other. Alternatively, the first protrusion may be two protrusions in a trapezoidal structure connected to each other, and the first recess may be two grooves in a trapezoidal structure connected to each other.

[0029] In one possible design, the first protrusion is a trapezoidal protrusion, and two protrusions are provided, which are symmetrically arranged along the axis of the transmission assembly.

[0030] The first recess is a trapezoidal groove, and four grooves are provided, which are evenly distributed along the circumference of the transmission component.

[0031] The two protrusions can engage with any set of two oppositely arranged grooves.

[0032] In this embodiment, two protrusions are spaced apart along the radial direction of the transmission component, and two grooves that are opposite to each other along the radial direction of the transmission component are connected. That is, the first recess has a "+" shaped structure, so that the two protrusions can cooperate with any set of two grooves that are opposite to each other along the radial direction of the transmission component, so as to facilitate the user to install the toner cartridge.

[0033] In one possible design, an arcuate groove is provided at the side end of the first recess along the radial direction of the transmission assembly, the arcuate groove being used to reduce the thickness of the outer periphery of the first recess.

[0034] In this embodiment of the application, when the first recess is two symmetrically arranged grooves along the radial direction of the transmission component, an arc-shaped groove can also be provided on the side end of the first recess. The arc-shaped groove is used to reduce the thickness of the outer periphery of the first recess, avoid the problem of excessive thickness in local positions, ensure that the overall structure shrinks evenly when the power receiving component is formed, improve the rigidity of the power receiving component, and reduce the risk of deformation.

[0035] In one possible design, the drive unit is a trapezoidal protrusion, and two protrusions are provided. The two protrusions are symmetrically arranged along the axis of the transmission assembly, and a third recess is formed between the two protrusions.

[0036] The mating part is a third protrusion that can mate with the third recessed part.

[0037] In this embodiment, when the driving member and the power receiving member cooperate, the third protrusion can be inserted into the third recess, and the transmission between the driving member and the power receiving member is realized through the insertion and cooperation of the third protrusion and the third recess.

[0038] In one possible design, the transmission assembly further includes an elastic element connected to the end of the drive member away from the power receiver;

[0039] Under the elastic force of the elastic element, the elastic element can push the driving element to cooperate with the power receiving element.

[0040] In this embodiment, one end of the elastic element is connected to the drive module, and the other end is connected to the drive element. The elastic element is always in a compressed state. After the drive element and the power receiver are engaged, the elastic element, under its elastic force, pushes the drive element and the power receiver to remain in axial contact, providing pre-tightening pressure to ensure the tightness of the engagement between the drive element and the power receiver.

[0041] This application provides a toner cartridge in a second aspect, the toner cartridge comprising:

[0042] Drum body;

[0043] A power receiver is mounted on the drum body, and the power receiver is the power receiver described above.

[0044] In this embodiment of the application, since the power receiver has the above-mentioned technical effects, the toner cartridge containing the power receiver should also have the corresponding technical effects, which will not be elaborated here.

[0045] This application provides an image forming apparatus in a third aspect, the image forming apparatus comprising:

[0046] Equipment body;

[0047] A drive module, which is installed on the device body, and is provided with drive components;

[0048] The toner cartridge is detachably installed on the device body. The toner cartridge is the toner cartridge described above. The toner cartridge is equipped with a power receiver. When the toner cartridge is installed on the device body, the drive unit cooperates with the power receiver.

[0049] In this embodiment, when the toner cartridge is installed on the device body, the drive unit cooperates with the power receiver to drive the toner cartridge to work. When the toner cartridge is removed from the device body, the drive unit and the power receiver separate to facilitate toner cartridge replacement. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of an image forming apparatus in one embodiment;

[0051] Figure 2 This is a schematic diagram showing the driving component and the power receiving component in a separated state.

[0052] Figure 3 This is a schematic diagram showing the driving component and the power receiving component in a mating state.

[0053] Figure 4 This is a schematic diagram of the transmission assembly;

[0054] Figure 5 This is a schematic diagram of the driving element and the power receiving element in one embodiment;

[0055] Figure 6 for Figure 5 A diagram from another perspective;

[0056] Figure 7 for Figure 5 A diagram from another perspective;

[0057] Figure 8 for Figure 5 A diagram from another perspective;

[0058] Figure 9 This is a schematic diagram of the driving element and the power receiving element in another embodiment;

[0059] Figure 10 This is a schematic diagram of the driving element and the power receiving element in another embodiment;

[0060] Figure 11 This is a schematic diagram of the driving element and the power receiving element in another embodiment;

[0061] Figure 12 This is a schematic diagram of the driving element and the power receiving element in another embodiment;

[0062] Figure 13 This is a schematic diagram of the driving element and the power receiving element in another embodiment;

[0063] Figure 14 This is a schematic diagram of the drive unit and power receiver in another embodiment.

[0064] Figure label:

[0065] 1-Image forming equipment, 1a-Equipment body, 1b-Laser module, 1c-Drum unit, 1d-Fixing module, 1e-Main control module, 1f-Drive module, 1g-Duplex module, 1h-Paper tray module, 1i-Paper feeding module, 1j-Paper output module, 1k-Outer shell module, 1l-Scanning module;

[0066] 2-Transmission assembly, 21-Driver, 211-Driver part, 211a-First mating surface, 211b-First protrusion, 212-First end face, 213-Second recess, 214-Third recess, 22-Power receiver, 221-Mating part, 221a-Second mating surface, 221b-First recess, 222-Second end face, 223-Second protrusion, 224-Arc groove, 225-Third protrusion, 23-Elastic element, 2a-Corner portion. Detailed Implementation

[0067] This embodiment provides an image forming apparatus, which can be a multifunctional image forming apparatus with functions such as printing, copying, scanning, and faxing.

[0068] like Figure 1 The diagram shown is of an image forming apparatus 1. The image forming apparatus 1 includes an apparatus body 1a, a laser module 1b, a toner cartridge 1c, a fixing module 1d, a main control module 1e, a drive module 1f, a duplex module 1g, a paper tray module 1h, a paper feeding module 1i, a paper output module 1j, a housing module 1k, and a scanning module 1l. The laser module 1b, toner cartridge 1c, fixing module 1d, main control module 1e, drive module 1f, duplex module 1g, paper tray module 1h, paper feeding module 1i, paper output module 1j, housing module 1k, and scanning module 1l are all mounted on the apparatus body 1a.

[0069] The outer casing module 1k protects all modules. The scanning module 1l converts paper documents into digital signals and saves them as electronic files. The paper tray module 1h stores the printing media. The paper feeding module 1i removes the printing media from the paper tray and conveys it to the printing path. The paper discharge module 1j discharges the printed media into the paper discharge tray. The duplex module 1g automatically flips the printing media after one side has been printed to print the other side. The main control module 1e is the control component of the image forming device 1, used to receive, store, and provide feedback information, and to control the image forming device 1 based on this information. The drive module 1f can be a motor drive, connected to the corresponding rollers in the image forming device 1, to drive each roller to transport the printing media and complete the paper feeding, printing (scanning), and paper discharge operations. The toner cartridge 1c is a consumable, detachably installed on the device body 1a for easy replacement. The drum unit 1c rotates under the drive of the drive module 1f, while the laser module 1b scans the drum unit 1c, causing a charge shift in the photosensitive drum on the surface of the drum unit 1c, thus forming a latent charge image. Toner is then sprayed onto the latent charge image, and electrostatic attraction causes the toner to adhere to the latent charge image. Finally, the toner is transferred to the printing medium. The fixing module 1d melts the toner on the printing medium through pressure and heat, immersing it in the printing medium to create an image.

[0070] The drive module includes a drive component, and the toner cartridge includes a power receiver. The drive component and power receiver are detachably coupled transmission components. When the toner cartridge is installed on the device body, the drive component and power receiver work together to drive the toner cartridge. When the toner cartridge is removed from the device body, the drive component and power receiver separate to facilitate toner cartridge replacement.

[0071] For details, please refer to Figure 2 and Figure 3 An elastic element 23 is provided on the side of the driving component 21 away from the power receiving component 22. One end of the elastic element 23 is connected to the driving module 1f, and the other end of the elastic element 23 is connected to the driving component 21. The elastic element 23 is always in a compressed state. For example, Figure 2 The diagram shows the driving member 21 and the power receiving member 22 in a separated state. At this time, the power receiving member 22 moves away from the driving member 21, causing it to disengage from the driving member 21. Simultaneously, the elastic member 23 is released. Figure 3 The diagram shows the driving component 21 and the power receiving component 22 in a mating state. At this time, the power receiving component 22 moves towards the driving component 21 and engages with it. Simultaneously, the elastic component 23 is compressed and stores elastic potential energy. After the driving component 21 and the power receiving component 22 complete their engagement, the elastic component 23, under its elastic force, pushes the driving component 21 and the power receiving component 22 to remain in contact along the axial direction B, providing pre-tightening pressure to ensure a tight fit between them.

[0072] In some embodiments, the elastic element 23 may be a spring. Alternatively, other components may be used, depending on the actual situation, and this embodiment does not limit the specific components.

[0073] However, in high-speed operation scenarios, the drive component 21 and the power receiver 22 may become disengaged, causing the image forming device 1 to cease operation and affecting its efficiency.

[0074] To address the aforementioned technical problems, this embodiment provides a transmission component 2. For ease of explanation, the possible structure of the transmission component 2 will be described in detail below with reference to the accompanying drawings.

[0075] like Figure 4 The diagram shows a schematic of the transmission assembly 2, which includes a driving component 21 and a power receiving component 22. At this time, the driving component 21 and the power receiving component 22 are in a cooperative state, and the driving component 21 can drive the power receiving component 22 to rotate coaxially. Specifically, the driving component 21 drives the power receiving component 22 to rotate synchronously around the axis L of the transmission assembly 2.

[0076] like Figure 5The diagram shown is a schematic of the transmission assembly 2 in one embodiment. The transmission assembly 2 includes a driving member 21 and a power receiving member 22. The driving member 21 is provided with a driving part 211, and the power receiving member 22 is provided with a mating part 221. When the driving member 21 and the power receiving member 22 are mated along the axial direction B (hereinafter referred to as axial direction B) of the transmission assembly 2, the driving part 211 can be mated with the mating part 221 to realize the transmission between the driving member 21 and the power receiving member 22.

[0077] like Figure 6 The diagram shows the driving member 21 and the power receiving member 22. The outer side wall of the driving part 211 has a first mating surface 211a, and the inner side wall of the mating part 221 has a second mating surface 221a. Please refer to the reference diagram. Figures 4 to 6 The first mating surface 211a and the second mating surface 221a are surfaces that abut against each other along the rotation direction C of the transmission assembly 2. During the rotation of the transmission assembly 2, the first mating surface 211a and the second mating surface 221a can be locked along the axial direction B. In this embodiment, during the rotation of the transmission assembly 2 in the working direction, the first mating surface 211a and the second mating surface 221a can be locked along the axial direction B, so that the power receiving component 22 generates an axial pressing force B on the driving component 21, restricting the movement of the driving component 21 and the power receiving component 22 along the axis, realizing the locking of the driving component 21 and the power receiving component 22 along the axial direction B, effectively reducing the risk of the driving component 21 and the power receiving component 22 disengaging in high-speed operation scenarios, and ensuring the stability of the image forming device 1.

[0078] For details, please continue to refer to Figure 6 Along the rotation direction C of the transmission component 2, the first mating surface 211a is a helical surface that moves helically around the axis of the transmission component 2, and the second mating surface 221a is also a helical surface that moves helically around the axis of the transmission component 2. The first mating surface 211a and the second mating surface 221a rotate at the same angle around the axis of the transmission component 2, and their rotation angles have no effect on the engagement between the drive part 211 and the mating part 221. In this embodiment, since the first mating surface 211a and the second mating surface 221a adopt a helical surface design, when the drive member 21 and the power receiver 22 rotate, the first mating surface 211a and the second mating surface 221a abut against each other. Due to their helical shape and the effect of friction, they can fit tightly together and will not easily disengage, thereby achieving axial B self-locking between the drive member 21 and the power receiver 22.

[0079] Please continue to refer to this. Figure 6In some embodiments, the mating position between the drive unit 211 and the mating part 221 is provided with a corner portion 2a, and the corner portion 2a located at the edge along the radial direction R of the transmission assembly 2 is an obtuse angle. This embodiment, by setting part of the corner portion 2a at the mating position of the drive unit 211 and the mating part 221 to an obtuse angle, increases the force-bearing area of ​​the corner portion 2a, thereby reducing stress concentration at the corner portion 2a, effectively reducing the risk of damage to the corner portion 2a, extending the service life of the drive unit 211 and the mating part 221, and ensuring the stability of the transmission engagement between the drive member 21 and the power receiving member 22.

[0080] Based on the above, the drive unit 211 and the mating unit 221 can be provided with various mating structures. The possible structures of the drive unit 211 and the mating unit 221 will be described in detail below with reference to the accompanying drawings.

[0081] In some embodiments, one of the driving part 211 and the mating part 221 can be a first protrusion 211b and the other can be a first recess 221b, and both the first protrusion 211b and the first recess 221b are non-circular structures. When the driving member 21 and the power receiving member 22 are mated, the first protrusion 211b and the first recess 221b are inserted into each other.

[0082] Specifically, such as Figure 7 The diagram shows a driving member 21 and a power receiving member 22 in one embodiment. Along the axial direction B of the transmission assembly 2, the driving member 21 has a first end face 212, and the driving portion 211 is a first protrusion 211b that protrudes outward along the first end face 212. Along the axial direction B of the transmission assembly 2, the power receiving member 22 has a second end face 222, and the mating portion 221 is a first recessed portion 221b that is recessed inward along the second end face 222.

[0083] Alternatively, the driving part 211 may be a first recessed part 221b that is recessed inward along the first end face 212, and the mating part 221 may be a first protruding part 211b that protrudes outward along the second end face 222. The specific configuration can be determined according to the actual situation, and this embodiment does not limit it.

[0084] Please continue to refer to this. Figure 7 In this embodiment, the driving member 21 is provided with a first protrusion 211b, and the power receiving member 22 is provided with a first recess 221b. When the driving member 21 and the power receiving member 22 cooperate, the first protrusion 211b can be inserted into the first recess 221b. When the driving member 21 is driven to rotate, the outer sidewall of the first protrusion 211b abuts against the inner sidewall of the first recess 221b, and pushes the power receiving member 22 to rotate, thereby realizing the transmission between the driving member 21 and the power receiving member 22.

[0085] In this embodiment, the direct transmission between the driving member 21 and the power receiving member 22 is achieved through the cooperation of the first protrusion 211b and the first recess 221b. The structure is simple and compact, with low cost and high transmission efficiency.

[0086] Please continue to refer to this. Figure 7 In some embodiments, the first protrusion 211b can be a trapezoidal protrusion, and the first recess 221b can be a trapezoidal groove. At least two protrusions and at least two grooves are provided, and these two protrusions and at least two grooves are evenly distributed along the circumference of the transmission assembly 2.

[0087] For example, in this embodiment, both the protrusions and the grooves can be set to two. The two protrusions are symmetrically arranged along the radial direction R of the transmission component 2 on the first end face 212, and the two grooves are symmetrically arranged along the radial direction R of the transmission component 2 on the second end face 222. Alternatively, both the protrusions and the grooves can be set to three, four, etc., depending on the actual situation. This embodiment does not limit the specific configuration.

[0088] In this embodiment, by setting the first protrusion 211b and the first recess 221b into a trapezoidal structure, the corner 2a of the outer edges of the first protrusion 211b and the first recess 221b is an obtuse angle. Compared to setting the first protrusion 211b and the first recess 221b into a triangular or square structure, the stress-bearing area of ​​the corner 2a is increased, resulting in more uniform stress distribution. Under the same torque transmission conditions, compared to setting the first protrusion 211b and the first recess 221b into a triangular structure, the maximum stress of the corner 2a in this embodiment can be reduced by at least 40%. Simultaneously, setting the first protrusion 211b and the first recess 221b into a trapezoidal structure also increases the contact area between the first protrusion 211b and the first recess 221b, which is beneficial for the application of the transmission assembly 2 in high-speed, high-torque scenarios.

[0089] In some embodiments, the bumps and grooves may also be pentagonal, hexagonal, or other structures.

[0090] like Figure 8 As shown Figure 7 A schematic diagram of the drive unit and power receiver from another perspective. In this embodiment, the first mating surface 211a is located on an outer side wall (side waist of the trapezoidal protrusion) of the first protrusion 211b, and the second mating surface 221a is located on an inner side wall (side waist of the trapezoidal groove) of the first recess 221b.

[0091] Please continue to refer to this. Figure 7 One of the driving member 21 and the power receiving member 22 is provided with a second protrusion 223, and the other is provided with a second recess 213 that can cooperate with the second protrusion 223. Both the second protrusion 223 and the second recess 213 are non-circular structures.

[0092] In this embodiment, by providing a matching second protrusion 223 and a second recess 213 on the driving member 21 and the power receiving member 22, the contact surface between the driving member 21 and the power receiving member 22 is further increased, thereby increasing the transmission torque.

[0093] Furthermore, along the axial direction B of the transmission assembly 2, the second protrusion 223 and the first recess 221b are located on the same end face, and the second recess 213 and the first protrusion 211b are located on the same end face. That is, the first end face 212 of the driving member 21 can be provided with the first protrusion 211b and the second recess 213, and the second end face 222 of the power receiving member 22 can be provided with the first recess 221b and the second protrusion 223. Alternatively, the first end face 212 of the driving member 21 can be provided with the first recess 221b and the second protrusion 223, and the second end face 222 of the power receiving member can be provided with the first protrusion 211b and the second recess 213. The specific configuration can be determined according to the actual situation, and this embodiment does not limit it.

[0094] In this embodiment, the first protrusion 211b and the second recess 213 are located on the same end face, and the first recess 221b and the second protrusion 223 are located on the same end face, so as to prevent all the recessed structures from being located on the same end face and to ensure the structural strength of the driving member 21 and the power receiving member 22.

[0095] Please continue to refer to this. Figure 7 In this embodiment, the first protrusion 211b has two trapezoidal protrusions, and the second recess 213 is located between the two protrusions. Correspondingly, the first recess 221b has two trapezoidal grooves, and the second protrusion 223 is located between the two grooves. That is, in this embodiment, both the second protrusion 223 and the second recess 213 have a straight "I" shape.

[0096] Alternatively, in some embodiments, the second protrusion 223 and the second recess 213 may be located in other positions and have other shapes. The specific configuration can be determined according to actual circumstances, and this embodiment does not impose any limitations.

[0097] like Figure 9The diagram shows a driving member 21 and a power receiving member 22 in another embodiment. The first end face 212 of the driving member 21 has a first protrusion 211b, and the second end face 222 of the power receiving member 22 has a first recess 221b that mates with the first protrusion 211b. The first protrusion 211b can be a trapezoidal protrusion, and the first recess 221b can be a trapezoidal groove. At least two protrusions and at least two grooves are provided, and their quantities correspond. At least two protrusions and at least two grooves are evenly distributed along the circumference of the transmission assembly 2. At least two grooves are connected along the radial direction R of the transmission assembly 2.

[0098] Please continue to refer to this. Figure 9 In this embodiment, the first protrusion 211b can be two protrusions with a trapezoidal structure and a gap between them, and the first recess 221b can be two grooves with a trapezoidal structure and the two grooves are connected. Please refer to the reference. Figure 7 In this embodiment Figure 7 Based on the embodiment shown, the structure of the first recessed portion 221b can be changed according to the structure of the first protrusion 211b. That is, the structure of the power receiver 22 can be designed according to the structure of the drive member 21, so that the power receiver 22 has a variety of structures that can be adapted to the drive member 21, thereby increasing the diversity of the power receiving structure of the toner cartridge 1c and providing users with a wide variety of choices.

[0099] Alternatively, the protrusions and grooves can be set to three or four, with no connection between the protrusions and interconnection between the grooves.

[0100] It should be noted that in this embodiment, the corner of the outer edge of the mating part of the first protrusion 211b and the first recess 221b is an obtuse angle, and the mating surface of the first protrusion 211b and the first recess 221b along the rotation direction C of the transmission assembly 2 is set as a helical surface. For details, please refer to the above text, and this embodiment will not be repeated here.

[0101] Alternatively, please refer to Figure 10 , Figure 10 The diagram shows a driving member 21 and a power receiving member 22 in another embodiment. In this embodiment, the first protrusion 211b consists of two protrusions with a trapezoidal structure and are connected to each other, and the first recess 221b consists of two grooves with a trapezoidal structure and are connected to each other.

[0102] Please refer to the reference. Figure 7 , Figure 9 and Figure 10Along the radial direction R of the transmission assembly 2, when the first recess 221b consists of two symmetrically arranged grooves, an arc-shaped groove 224 can also be provided on the side end of the first recess 221b. The arc-shaped groove 224 is used to reduce the thickness of the outer periphery of the first recess 221b, avoid the problem of excessive thickness in local areas, ensure uniform shrinkage of the overall structure when the power receiver 22 is formed, improve the rigidity of the power receiver 22, and reduce the risk of deformation.

[0103] In some embodiments, the arc groove 224 can also be configured as other shapes, such as square, irregular, etc., which can be set according to the size of the area at the side end of the first recess 221b. This embodiment does not limit it here.

[0104] like Figure 11 The diagram shows a driving component 21 and a power receiving component 22 in another embodiment. The first protrusion 211b is a trapezoidal protrusion, and two protrusions are provided, symmetrically arranged along the axis of the transmission assembly 2. The first recess 221b is a trapezoidal groove, and four grooves are provided, evenly distributed along the circumference of the transmission assembly 2. Two protrusions can engage with any set of two grooves arranged opposite each other along the radial direction R of the transmission assembly 2, facilitating user installation of the toner cartridge.

[0105] In this embodiment, two protrusions are spaced apart along the radial direction R of the transmission assembly 2. Two oppositely arranged grooves are connected along the radial direction R of the transmission assembly 2, that is, the first recess 221b has a cross-shaped structure.

[0106] Please refer to the reference. Figure 7 In this embodiment Figure 7 Based on the embodiment shown, the structure of the first recessed portion 221b can be changed according to the structure of the first protrusion 211b. That is, the structure of the power receiver 22 can be designed according to the structure of the drive member 21, so that the power receiver 22 has a variety of structures that can be adapted to the drive member 21, thereby increasing the diversity of the power receiving structure of the toner cartridge 1c and providing users with a wide variety of choices.

[0107] It should be noted that in this embodiment, the corner 2a at the outer edge of the mating point of the first protrusion 211b and the first recess 221b is an obtuse angle, and the mating surface of the first protrusion 211b and the first recess 221b along the rotation direction C of the transmission assembly 2 is set as a helical surface. For details, please refer to the above text, and this embodiment will not be repeated here.

[0108] Alternatively, please refer to Figure 12 , Figure 12The diagram illustrates the drive component 21 and the power receiver 22 in another embodiment. The first protrusion 211b is a trapezoidal protrusion, four of which are evenly distributed circumferentially along the transmission component 2 and connected to each other radially along the transmission component 2, forming a cross shape. The first recess 221b is a trapezoidal groove, four of which are evenly distributed circumferentially along the transmission component 2 and connected to each other radially along the transmission component 2, forming a cross shape.

[0109] like Figure 13 The diagram shows a driving member 21 and a power receiver 22 in another embodiment. The driving part 211 is a trapezoidal protrusion, and two protrusions are provided. The two protrusions are symmetrically arranged along the axis of the transmission assembly 2, and a third recess 214 is formed between the two protrusions. The third recess 214 has a "I"-shaped structure. The mating part 221 is a third protrusion 225 that can mate with the third recess 214. The third protrusion 225 also has a "I"-shaped structure. When the driving member 21 and the power receiver 22 are mated, the third protrusion 225 can be inserted into the third recess 214. Through the insertion and mating of the third protrusion 225 and the third recess 214, the transmission between the driving member 21 and the power receiver 22 is realized. Please refer to the reference. Figure 7 In this embodiment Figure 7 Based on the embodiment shown, the structure of the first recessed portion 221b can be changed according to the structure of the first protrusion 211b. That is, the structure of the power receiver 22 can be designed according to the structure of the drive member 21, so that the power receiver 22 has a variety of structures that can be adapted to the drive member 21, thereby increasing the diversity of the power receiving structure of the toner cartridge 1c and providing users with a wide variety of choices.

[0110] In this embodiment, along the rotation direction C of the transmission assembly 2, the surfaces where the third protrusion 225 and the third recess 214 abut are set as helical surfaces.

[0111] Alternatively, please refer to Figure 14 , Figure 14 The diagram shows the drive member 21 and the power receiver 22 in another embodiment. The third recess 214 is a groove in the shape of an "I" and the third protrusion 225 is a protrusion in the shape of an "I".

[0112] In some embodiments, at least one of the driving member 21 and the power receiving member 22 may be provided with a foolproof structure to prevent misalignment between the driving member 21 and the power receiving member 22, ensuring proper assembly of the driving member 21 and the power receiving member 22 and improving work efficiency. The foolproof structure may be a protrusion or recess on the driving member 21 and / or the power receiving member. The specific design can be determined according to actual conditions, and this embodiment does not impose any limitations.

[0113] In practical applications, in addition to the image forming equipment mentioned above, the transmission component can also be used in other scenarios that require transmission coordination, and this embodiment does not limit it here.

[0114] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A transmission component, characterized in that, The transmission assembly includes: A driver, used to install a driver module in an image forming device; A power receiver is used to install on a toner cartridge. The drive unit is detachably connected to the power receiver, and the drive unit can drive the power receiver to rotate coaxially. The driving component is provided with a driving part, and the power receiving component is provided with a mating part. Along the axial direction of the transmission assembly, the driving part and the mating part are mated. The outer side wall of the drive unit is provided with a first mating surface, and the inner side wall of the mating unit is provided with a second mating surface. The first mating surface and the second mating surface are surfaces that abut against each other along the rotation direction of the transmission assembly. During the rotation of the transmission assembly, the first mating surface and the second mating surface can be locked along the axial direction of the transmission assembly.

2. The transmission assembly according to claim 1, characterized in that, Along the rotation direction of the transmission assembly, both the first mating surface and the second mating surface are helical surfaces that rotate about the axis of the transmission assembly.

3. The transmission assembly according to claim 1, characterized in that, The driving part and the mating part are provided with an angle portion at the mating position; Along the radial direction of the transmission assembly, the corner portion located at the edge position is an obtuse angle.

4. The transmission assembly according to any one of claims 1 to 3, characterized in that, One of the driving part and the mating part is a first protrusion and the other is a first recess, and the first protrusion and the first recess are inserted into each other.

5. The transmission assembly according to claim 4, characterized in that, The first protrusion is a trapezoidal protrusion, and the first recess is a trapezoidal groove. At least two of each of the protrusions and grooves are provided, and at least two of the protrusions and at least two of the grooves are evenly distributed along the circumference of the transmission assembly.

6. The transmission assembly according to claim 5, characterized in that, One of the driving component and the power receiving component is provided with a second protrusion, and the other is provided with a second recess that can cooperate with the second protrusion. Both the second protrusion and the second recess are non-circular structures. Along the axial direction of the transmission assembly, the second protrusion and the first recess are located on the same end face, and the second recess and the first protrusion are located on the same end face.

7. The transmission assembly according to claim 5, characterized in that, At least two of the grooves are connected along the radial direction of the transmission assembly; or, Along the radial direction of the transmission assembly, at least two of the grooves are connected, and at least two of the protrusions are connected.

8. The transmission assembly according to claim 4, characterized in that, The first protrusion is a trapezoidal protrusion, and there are two protrusions, which are symmetrically arranged along the axis of the transmission assembly; The first recess is a trapezoidal groove, and four grooves are provided, which are evenly distributed along the circumference of the transmission component. The two protrusions can engage with any set of two oppositely arranged grooves.

9. The transmission assembly according to any one of claims 4 to 8, characterized in that, Along the radial direction of the transmission assembly, an arc-shaped groove is provided at the side end of the first recess, the arc-shaped groove being used to reduce the thickness of the outer periphery of the first recess.

10. The transmission assembly according to claim 1 or 2, characterized in that, The driving part is a trapezoidal protrusion, and there are two protrusions. The two protrusions are symmetrically arranged along the axis of the transmission assembly, and a third recess is formed between the two protrusions. The mating part is a third protrusion that can mate with the third recessed part.

11. The transmission assembly according to any one of claims 1 to 3, characterized in that, The transmission assembly further includes an elastic element, which is connected to the end of the driving element away from the power receiving element; Under the elastic force of the elastic element, the elastic element can push the driving element to maintain abutment with the power receiving element.

12. A toner cartridge, characterized in that, The toner cartridge includes: Drum body; A power receiver, which is mounted on the drum body, wherein the power receiver is the power receiver according to any one of claims 1 to 11.

13. An image forming apparatus, characterized in that, The image forming apparatus includes: Equipment body; A drive module, which is installed on the device body, and is provided with drive components; A toner cartridge, which is detachably installed on the device body, is the toner cartridge as described in claim 12, and is provided with a power receiving component. When the toner cartridge is installed on the device body, the driving component cooperates with the power receiving component.

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