Cartridge driving head, processing cartridge and image forming equipment

Abstract

The utility model relates to the technical field of image printing, in particular to a cartridge driving head, a processing cartridge and image forming equipment. The box driving head is used for being arranged on the processing box, the processing box is detachably installed on the image forming equipment, the image forming equipment comprises a body driving head, the box driving head comprises a driven head and a first clamping part, the driven head is used for being detachably matched with the body driving head, and the driven head and the body driving head are in transmission fit after being matched. The first clamping part is installed on the driven head in a telescopic mode, and the first clamping part is used for being attracted with the body driving head so as to move relative to the driven head and is matched with the second clamping part on the body driving head in a clamping mode. The cartridge driving head and the body driving head are connected through adsorption, so that the problems that the connection between the cartridge driving head and the body driving head is unstable and the process cartridge is difficult to mount are solved, the working stability of the image forming equipment is ensured, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of image printing, and particularly to a cartridge drive head, a processing cartridge, and an image forming apparatus. Background Art

[0002] Products such as image forming apparatuses, such as laser printers and copiers, are each provided with a processing cartridge inside. The processing cartridge is an important component in the image forming apparatus.

[0003] The main body drive head in the image forming apparatus can be engaged with the processing cartridge drive head, and the processing cartridge drive head is driven to rotate by the main body drive head, thereby realizing imaging operations such as the supply of toner in the toner cartridge.

[0004] Currently, the engagement between drive heads in an image forming apparatus is maintained by a spring. Since the spring is compressed for a long time, it will deform, and during the process of inserting the processing cartridge, there is interference between the drive heads. There is a phenomenon that the engagement is unstable and difficult to install due to the poor resilience of the spring deformation of the drive head. Summary of the Utility Model

[0005] Embodiments of this application provide a cartridge drive head, a processing cartridge, and an image forming apparatus, aiming to improve the stability of the engagement between drive heads and reduce the installation difficulty and cost.

[0006] Embodiments of this application provide a cartridge drive head in a first aspect, which is used to be arranged on a processing cartridge. The processing cartridge is detachably installed in an image forming apparatus, and the image forming apparatus includes a main body drive head. The cartridge drive head includes:

[0007] A driven head, which is used to be detachably engaged with the main body drive head, and the two are in transmission engagement after being engaged;

[0008] A first clamping portion, which is telescopically installed on the driven head. The first clamping portion is used to be attracted to the main body drive head, so as to be able to move relative to the driven head and be in clamping engagement with a second clamping portion on the main body drive head.

[0009] Embodiments of this application also provide a processing cartridge in a second aspect. The processing cartridge includes:

[0010] A cartridge body;

[0011] A cartridge drive head, which is rotatably installed on the cartridge body, and the cartridge drive head is the above-mentioned cartridge drive head.

[0012] Embodiments of this application also provide an image forming apparatus in a third aspect. The image forming apparatus includes:

[0013] A device main body, which is provided with a main body drive head, and the main body drive head is provided with a second clamping portion;

[0014] A processing cartridge, which is detachably installed on the device body, and the processing cartridge is the above-mentioned processing cartridge;

[0015] When the processing cartridge is installed on the device body, the first engaging portion can be attracted to the body driving head and is engaged with the second engaging portion, so that the body driving head and the driven head are in transmission cooperation.

[0016] In this application, when the cartridge driving head cooperates with the body driving head, the first magnetic member and the second magnetic member are attracted to each other, which can enable the first engaging portion and the second engaging portion to be engaged and cooperate, realizing the engaging and cooperating of the cartridge driving head and the body driving head. By setting the cartridge driving head and the body driving head as a magnetic structure, the two are automatically adsorbed and connected, so as to solve the problems of unstable connection between the cartridge driving head and the body driving head and difficult installation of the processing cartridge, ensure the stability of the image forming device during operation, and extend the service life. Moreover, the cartridge driving head and the body driving head are connected by attraction, and fewer parts need to be cooperatively arranged, the cost is lower, and it is also easy to repair and replace.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and do not limit this application. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the rotational force driving unit provided by this application;

[0019] Figure 2 It is a schematic structural diagram of the processing cartridge provided by this application;

[0020] Figure 3 It is a cross-sectional schematic diagram of the cooperation state of the rotational force driving unit and the driving force receiving unit of the processing cartridge;

[0021] Figure 4 It is Figure 1 The enlarged schematic diagram of part A in

[0022] Figure 5 It is Figure 2 The structural schematic diagram of the driving component part in (the first engaging portion extends out of the driven head);

[0023] Figure 6 It is a cross-sectional schematic diagram of the body driving head;

[0024] Figure 7 It is Figure 2 The structural schematic diagram of the driving component part in (the first engaging portion retracts into the driven head);

[0025] Figure 8 It is a cross-sectional schematic diagram during the cooperation process of the driven head and the body driving head provided by this application;

[0026] Figure 9 A sectional view showing the cooperation between the driven head and the body drive head provided by this application;

[0027] Figure 10 A sectional view of the cartridge drive head provided by this application;

[0028] Figure 11 A schematic structural view of the first engaging portion in an embodiment provided by this application;

[0029] Figure 12 is Figure 9 An enlarged view of part B in

[0030] Figure 13 is Figure 8 An enlarged view of part C in

[0031] Reference numerals:

[0032] 1 - Cartridge drive head;

[0033] 11 - Driven head;

[0034] 111 - Limit groove;

[0035] 111a - Limiting portion;

[0036] 12 - First engaging portion;

[0037] 121 - Portion to be limited;

[0038] 122 - First guiding surface;

[0039] 123 - Second guiding surface;

[0040] 13 - First magnetic member;

[0041] 14 - Blocking portion;

[0042] 2 - Processing cartridge;

[0043] 21 - Cartridge body;

[0044] 211 - Protective cover;

[0045] 22 - Driving force receiving unit;

[0046] 3 - Rotational force driving unit;

[0047] 31 - Body drive head;

[0048] 311 - Fitting hole;

[0049] 312 - First side wall;

[0050] 312a - Second engaging portion;

[0051] 312b - Second magnetic member.

[0052] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Detailed implementation manners

[0053] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0054] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0056] It should be understood that the term " / and / " used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0057] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the angles shown in the accompanying drawings, and should not be construed as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0058] This embodiment provides an image forming apparatus, which is a multi-functional image forming apparatus having functions such as printing, copying, scanning, and faxing. The image forming apparatus includes a device body and a processing cartridge, and the processing cartridge is detachably mounted on the device body. The device body is provided with a rotational force driving unit, and the processing cartridge is provided with a driving force receiving unit. After the driving end of the rotational force driving unit and the receiving end of the driving force receiving unit cooperate with each other, the rotational driving force can be transmitted to the driving force receiving unit in the processing cartridge to drive the driving force receiving unit in the processing cartridge to rotate and work.

[0059] The possible transmission structures of the rotational force driving unit and the driving force receiving unit will be described below in conjunction with the accompanying drawings.

[0060] Figure 1 The structural schematic diagram of the rotational force driving unit 3 is shown. The rotational force driving unit 3 includes a main body driving head 31.

[0061] Figure 2 The structural schematic diagram of the processing cartridge 2 is shown. The processing cartridge 2 includes a cartridge body 21 and a driving force receiving unit 22 installed in the cartridge body 21. The driving force receiving unit 22 is provided with a cartridge driving head 1.

[0062] Figure 3 The cross-sectional schematic diagram of the mating state of the rotational force driving unit 3 and the driving force receiving unit 22 of the processing cartridge 2 is shown. In the figure, there are X direction and Y direction. The cartridge driving head 1 and the main body driving head 31 are in a shaft-hole mating structure. In the figure, the X direction and Y direction are the radial X and axial Y with the cartridge driving head 1 as the reference, and the radial X and axial Y are substantially perpendicular.

[0063] Please continue to refer to Figure 3 , after the processing cartridge 2 is installed on the equipment main body, the main body driving head 31 and the cartridge driving head 1 are mated to realize the mating of the rotational force driving unit 3 and the driving force receiving unit 22, so as to realize the rotational force driving unit 3 driving the driving force receiving unit 22 to rotate synchronously. The main body driving head 31 and the cartridge driving head 1 are detachably mated to facilitate the disassembly of the processing cartridge 2 from the equipment main body for repair or replacement with a new processing cartridge 2.

[0064] Among them, Figure 4 The following is shown Figure 1 The enlarged schematic diagram of part A in

[0065] Figure 5 The end schematic diagram of the processing cartridge 2 is shown, including the cartridge driving head 1 extending out of the cartridge body 21. The cartridge driving head 1 includes a driven head 11 and a first engaging portion 12 and a first magnetic member 13 provided on the side wall of the driven head 11.

[0066] Please refer to in combination with Figure 4 and Figure 5, when the cartridge drive head 1 is engaged with the main body drive head 31, the driven head 11 extends into the engagement hole 311, and the first magnetic member 13 is attracted to the second magnetic member 312b, enabling the first engaging portion 12 to be engaged with the second engaging portion 312a to restrict the rotation of the driven head 11 relative to the engagement hole 311, achieving the snap - fit of the cartridge drive head 1 and the main body drive head 31. Thus, the rotational force driving unit 3 drives the driving force receiving unit 22 to rotate synchronously through the transmission cooperation between the main body drive head 31 and the driven head 11.

[0067] In this embodiment, by setting the cartridge drive head 1 and the main body drive head 31 as a magnetic structure, they are automatically attracted and connected to solve the problems of unstable connection between the cartridge drive head 1 and the main body drive head 31 and difficult installation of the processing cartridge 2, ensuring the stability of the image forming apparatus during operation and extending the service life. Moreover, since the cartridge drive head 1 and the main body drive head 31 are connected by magnetic attraction, fewer parts need to be provided for cooperation, the cost is lower, and it is also easy to repair and replace.

[0068] In some embodiments, the cooperation mode between the first engaging portion 12 and the second engaging portion 312a can be as follows: the first engaging portion 12 is a retractable convex structure, the second engaging portion 312a is a concave structure, and through the attraction of the first magnetic member 13 and the second magnetic member 312b, the first engaging portion 12 extends into the second engaging portion 312a to achieve the snap - fit between the first engaging portion 12 and the second engaging portion 312a. Or, the first engaging portion 12 is a concave structure, the second engaging portion 312a is a retractable convex structure, and through the attraction of the first magnetic member 13 and the second magnetic member 312b, the second engaging portion 312a extends into the second engaging portion 312a to achieve the cooperation between the first engaging portion 12 and the second engaging portion 312a. Or, both the first engaging portion 12 and the second engaging portion 312a are retractable convex structures, and through the attraction of the first magnetic member 13 and the second magnetic member 312b, the first engaging portion 12 and the second engaging portion 312a are in circumferential contact along the cartridge drive head 1.

[0069] In the following embodiments, taking the first engaging portion 12 as a retractable convex structure and the second engaging portion 312a as a concave structure as an example, the cooperation between the main body drive head 31 and the cartridge drive head 1 will be described in detail.

[0070] Please refer to Figure 6 , Figure 6 is a cross - sectional schematic view of the main body drive head 31. The main body drive head 31 has an engagement hole 311. The second engaging portion 312a is a concave structure formed on the first side wall 312 of the engagement hole 311. The second magnetic member 312b is installed on the bottom wall of the second engaging portion 312a, and the thickness of the second magnetic member 312b is less than the depth of the second engaging portion 312a.

[0071] Please refer to in combination Figure 5 andFigure 7 The first clamping portion 12 is a convex structure installed on the side wall of the driven head 11. Specifically, the side wall of the driven head 11 has a limiting groove 111, and a partial structure of the first clamping portion 12 is installed in the limiting groove 111. The first magnetic member 13 is installed at the end of the first clamping portion 12 away from the limiting groove 111. The first clamping portion 12 and the first magnetic member 13 can telescopically move relative to the driven head 11, so that a partial structure of the first magnetic member 13 and the first clamping portion 12 can extend out of the limiting groove 111, and the first magnetic member 13 and the first clamping portion 12 can be completely retracted into the limiting groove 111. Specifically Figure 5 it is that a partial structure of the first clamping portion 12 extends out of the driven head 11, Figure 7 and it is that the first clamping portion 12 is completely retracted into the driven head 11.

[0072] As Figure 8 shown in the schematic diagram of the cooperation process between the cartridge drive head 1 and the body drive head 31, when the processing cartridge 2 is installed on the device body, the driven head 11 is pushed into the fitting hole 311. At this time, the first clamping portion 12 and the first magnetic member 13 are retracted in the limiting groove 111 to prevent the first clamping portion 12 and the first magnetic member 13 from interfering with the first side wall 312 of the fitting hole 311, resulting in the driven head 11 being unable to enter the fitting hole 311.

[0073] As Figure 9 shown in the schematic diagram of the completed cooperation between the cartridge drive head 1 and the body drive head 31, after the driven head 11 and the fitting hole 311 are installed in place, the first magnetic member 13 and the second magnetic member 312b are arranged opposite to each other, and they generate mutual attraction forces, causing the first magnetic member 13 to drive the first clamping portion 12 to move towards the second clamping portion 312a, so that a partial structure of the first clamping portion 12 extends out of the limiting groove 111 and extends into the second clamping portion 312a, realizing the clamping connection between the first clamping portion 12 and the second clamping portion 312a, thereby completing the cooperation between the cartridge drive head 1 and the body drive head 31.

[0074] In this embodiment, magnetic attraction is used to realize the connection between the first clamping portion 12 and the second clamping portion 312a. The connection process is simple and fast. The magnetic attraction force aligns and clamps the first clamping portion 12 and the second clamping portion 312a, ensuring the correctness of the connection position. Using magnetic connection can also withstand a certain amount of impact and vibration, reducing the possibility of the connection between the first clamping portion 12 and the second clamping portion 312a being disconnected, and further improving the stability of the connection between the cartridge drive head 1 and the body drive head 31.

[0075] Please continue to refer to Figure 9, the cartridge driving head 1 is further provided with a blocking portion 14. The blocking portion 14 is arranged on the side wall of the driven head 11 and is located on the side of the first engaging portion 12 away from the main body driving head 31. During the cooperation process of the cartridge driving head 1 and the main body driving head 31, when the blocking portion 14 abuts against the end of the main body driving head 31, it indicates that the driven head 11 is properly installed in the mating hole 311.

[0076] It can be understood that when the driven head 11 extends into the mating hole 311, the first magnetic member 13 and the second magnetic member 312b may not be directly opposite to each other. After the driven head 11 rotates a certain angle, the first magnetic member 13 and the second magnetic member 312b can be directly opposite to each other. At this time, the first engaging portion 12 and the second engaging portion 312a can be engaged with each other by the attraction between the first magnetic member 13 and the second magnetic member 312b.

[0077] In this embodiment, the first engaging portion 12 can be arranged on one side of the driven head 11 along the radial direction X of the cartridge driving head 1. Correspondingly, the second engaging portion 312a is arranged on one side of the first side wall 312 along the radial direction X of the cartridge driving head 1. Alternatively, the first engaging portion 12 can also be arranged on the opposite sides of the driven head 11 along the radial direction X of the driving head 1 assembly. Correspondingly, the second engaging portion 312a is arranged on the opposite sides of the first side wall 312 along the radial direction X of the cartridge driving head 1. Preferably, the first engaging portion 12 is arranged on the opposite sides of the driven head 11 along the radial direction X of the driving head 1 assembly, and the second engaging portion 312a is arranged on the opposite sides of the first side wall 312 along the radial direction X of the cartridge driving head 1 to ensure the stability of the cooperation between the cartridge driving head 1 and the main body driving head 31.

[0078] Among them, to realize the suction connection between the first engaging portion 12 and the second engaging portion 312a, at least part of the structure of the first engaging portion 12 can be made of a magnetic material (such as the end of the first engaging portion 12) to form a first magnetic portion, and at least part of the structure of the second engaging portion 312a can be made of a magnetic material (such as the bottom wall of the second engaging portion 312a) to form a second magnetic portion. When the first magnetic portion and the second magnetic portion are directly opposite to each other, they attract each other to generate an attractive force to drive the first engaging portion 12 and the second engaging portion 312a to cooperate.

[0079] Further, please refer to Figure 10 and Figure 11 , to limit the first engaging portion 12 from completely disengaging from the limiting groove 111, the limiting groove 111 is provided with a limiting portion 111a, and the first engaging portion 12 is provided with a portion to be limited 121. When a part of the structure of the first engaging portion 12 extends out of the limiting groove 111, the portion to be limited 121 can abut against the limiting portion 111a to limit the first engaging portion 12 from disengaging from the limiting groove 111.

[0080] Specifically, the limiting portion 111a is a structure formed by the opposite side walls of the limiting groove 111 extending towards the middle of the groove opening, and the portion to be limited 121 is a barb structure formed by the bottom of the first engaging portion 12 protruding towards the opposite sides. Two limiting portions 111a and two portions to be limited 121 are provided. The distance between the two limiting portions 111a is less than the maximum distance between the two portions to be limited 121. When a partial structure of the first engaging portion 12 extends out of the limiting groove 111, the limiting portion 111a can block the portion to be limited 121 from extending out of the limiting groove 111, thereby restricting the first engaging portion 12 from completely disengaging from the limiting groove 111.

[0081] Among them, the first engaging portion 12 can be made of an elastoplastic material. When the first engaging portion 12 is installed into the limiting groove 111, by inwardly squeezing the two portions to be limited 121, it is installed into the limiting groove 111.

[0082] Please continue to refer to Figure 11 , the first engaging portion 12 is further provided with a first guiding surface 122 and a second guiding surface 123. Along the axial direction Y of the cartridge driving head 1 (a direction perpendicular or substantially perpendicular to the radial direction of the cartridge driving head), the first guiding surface 122 and the second guiding surface 123 are located at both ends of the first engaging portion 12, playing a guiding role in the movement of the first engaging portion 12.

[0083] Specifically, please refer to Figure 12 , Figure 12 For Figure 9 the enlarged schematic view of part B in

[0084] Please refer to Figure 13 , Figure 13 For Figure 8 the enlarged schematic view of part C in

[0085] Among them, the first guiding surface 122 and the second guiding surface 123 can be set as inclined surfaces or arc surfaces.

[0086] Please refer back to Figure 7 and Figure 9The processing cartridge 2 is provided with a protective cover 211. The protective cover 211 is arranged on the outer ring of the cartridge driving head 1, and the protective cover 211 can cover and protect the mating position of the cartridge driving head 1 and the main body driving head 31. At the same time, when the main body driving head 31 is mated with the cartridge driving head 1, a part of the structure of the main body driving head 31 extends into the protective cover 211, and the outer side wall of the main body driving head 31 is attached to the inner side wall of the protective cover 211 to define the positions of the main body driving head 31 and the cartridge driving head 1.

[0087] It can be understood that when the first engaging portion 12 is a concave structure and the second engaging portion 312a is a telescopically protruding structure (not shown in the figure), the first engaging portion 12 is formed on the side wall of the driven head 11. A limiting groove 111 communicating with the mating hole 311 is formed on the first side wall 312 of the mating hole 311. A part of the structure of the second engaging portion 312a is installed in the limiting groove 111. The first magnetic member 13 is installed on the bottom wall of the first engaging portion 12, and the second magnetic member 312b is installed at the end of the second engaging portion 312a away from the limiting groove 111. When the driven head 11 is installed into the mating hole 311, the driven head 11 can push the second engaging portion 312a and the second magnetic member 312b to completely retract into the limiting groove 111. After the driven head 11 and the mating hole 311 are installed in place, the first engaging portion 12 and the second engaging portion 312a are arranged opposite to each other. Under the attraction of the first magnetic member 13 and the second magnetic member 312b, the second engaging portion 312a can extend into the first engaging portion 12 to achieve the engaging cooperation between the two.

[0088] For the rest of the content, reference can be made to the above text, and it will not be elaborated in this embodiment.

[0089] It can be understood that when both the first clamping portion 12 and the second clamping portion 312a are telescopically convex structures (not shown in the figure), the side wall of the driven head 11 has a first limiting groove (with the same structure as the above-mentioned limiting groove), and a partial structure of the first clamping portion 12 is installed in the first limiting groove. A second limiting groove (with the same structure as the above-mentioned limiting groove) communicating with the mating hole 311 is formed in the first side wall 312 of the mating hole 311, and a partial structure of the second clamping portion 312a is installed in the second limiting groove. The first magnetic member 13 is installed on one side of the first clamping portion 12 along the circumferential direction of the cartridge driving head 1, and the second magnetic member 312b is installed on one side of the second clamping portion 312a along the circumferential direction of the cartridge driving head 1. After the driving head and the mating hole 311 are installed in place, under the attracting action of the first magnetic member 13 and the second magnetic member 312b, the side ends of the first clamping portion 12 and the second clamping portion 312a are attracted and connected. Among them, the first clamping portion 12 is located on one side of the second clamping portion 312a along the rotation direction of the body driving head 31, so that when the body driving head 31 rotates, the first clamping portion 12 and the second clamping portion 312a are always in contact along the rotation direction to drive the cartridge driving head 1 to rotate. Among them, for the convenience of the cooperation between the first clamping portion 12 and the second clamping portion 312a, marks can be made on the outer side of the driven head 11 and the outer side of the body driving head 31.

[0090] The rest of the content can be referred to the above, and will not be elaborated in this embodiment.

[0091] In some embodiments, along the axial direction Y of the cartridge driving head 1, the first clamping portion 12 can be arranged on the end face of the driven head 11. Correspondingly, the second clamping portion 312a can be arranged on the bottom wall of the mating hole 311. One of the first clamping portion 12 and the second clamping portion 312a is a convex structure, and the other is a concave structure. And along the axial direction Y of the cartridge driving head 1, the cross-sections of both the first clamping portion 12 and the second clamping portion 312a are non-circular, so as to limit the relative rotation between the two after the first clamping portion 12 and the second clamping portion 312a are matched, thereby ensuring the synchronous rotation of the cartridge driving head 1 and the body driving head 31.

[0092] Among them, the cross-sections of the first clamping portion 12 and the second clamping portion 312a can be square, elliptical, polygonal, etc.

[0093] In practical applications, in addition to the cooperation between the processing cartridge 2 and the equipment body, the cooperation method between the cartridge driving head 1 and the body driving head 31 can also be applied to other scenarios that require transmission cooperation. For example, the cooperation method between the cartridge driving head 1 and the body driving head 31 can be applied to toner cartridges, waste toner cartridges, and powder cartridges. This embodiment does not make any limitations here.

[0094] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A cartridge drive head, for being arranged on a processing cartridge, wherein the processing cartridge is detachably mounted on an image forming device, wherein the image forming device comprises a body drive head, wherein: The cartridge drive head comprises: The driven head is used to be detachably matched with the driving head of the main body, and the two are matched to perform transmission matching after the two are matched; The first clamping portion is telescopically mounted on the driven head, and is used to be attracted to the main body driving head so as to be movable relative to the driven head and to be engaged with the second clamping portion on the main body driving head.

2. The cartridge drive head according to claim 1, characterized in that: The cartridge drive head further comprises a first magnetic member, which is disposed on the first clamping portion and is used for being attracted to the body drive head; Alternatively, at least a portion of the first clamping portion is made of magnetic material, and is used to be attracted to the main body driving head.

3. The cartridge drive head according to claim 1, characterized in that: The driven head is provided with a limiting groove, the first clamping portion is provided in the limiting groove, and can move relative to the limiting groove to extend out of or retract into the limiting groove.

4. The cartridge drive head according to claim 3, characterized in that: The limiting groove is provided with a limiting portion, and the first clamping portion is provided with a limited portion; When a portion of the structure of the first clamping portion extends out of the limiting groove, the limited portion can abut against the limiting portion to limit the first clamping portion from being separated from the limiting groove.

5. The cartridge drive head according to claim 3, characterized in that: The first clamping portion is also provided with a first guide surface; The first guide surface is used to guide the first clamping portion to retract into the limiting groove when the first clamping portion is disengaged from the second clamping portion.

6. The cartridge drive head according to claim 3, characterized in that: The first clamping portion is also provided with a second guide surface; The second guide surface is used to guide the first clamping portion to shrink into the limiting groove during the process of the driven head and the main body driving head being matched.

7. The cartridge drive head according to claim 1, characterized in that: Along the radial direction of the cartridge driving head, the first clamping portion is arranged on the side surface of the driven head; Alternatively, along the axial direction of the cartridge driving head, the first clamping portion is disposed on the end surface of the driven head, and a cross section of the first clamping portion is non-circular.

8. A processing box, characterized in that: The processing box comprises: Box body; A box drive head, wherein the box drive head is rotatably mounted on the box body, and the box drive head is the box drive head according to any one of claims 1 to 7.

9. An image forming device, characterized in that: The image forming device comprises: The device body is provided with a body drive head, and the body drive head is provided with a second clamping portion; a process cartridge, the process cartridge being detachably mounted on the device body, the process cartridge being the process cartridge according to claim 8; When the processing box is installed on the device body, the first clamping part can be attracted to the body driving head and can be engaged with the second clamping part to make the body driving head and the driven head cooperate with each other in transmission.

10. The image forming apparatus according to claim 9, wherein: The second clamping portion is a recess, a second magnetic component is disposed on the main body driving head, and the first clamping portion can be attracted by the second magnetic component and extend into the second clamping portion.

Images