Driving module and image forming apparatus

Abstract

The embodiment of the utility model provides a driving module and an image forming device, and relates to the technical field of printing. The driving module comprises a telescopic mechanism and a first meshing head, the driven part is provided with a second meshing head, the telescopic mechanism is connected with the driving source, when the driving source is started, the telescopic mechanism drives the first meshing head to move in the direction close to the driven part, and the first meshing head and the second meshing head are meshed with each other so that the driven part can operate. The first meshing head can be meshed with the second meshing head of the driven part by means of power of a driving source of the image forming device, so that the front cover does not need to be provided with a transmission assembly, the pulling force is reduced when the front cover is opened, the front cover is conveniently opened, and the operation experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a driving module and an image forming device. Background Art

[0002] The image forming device forms an image on a print medium according to an input image signal. For example, printers, copiers, fax machines, and multifunctional peripherals having the combined functions of the above devices all belong to image forming devices. The process box, which may also be referred to as a powder box, is one of the components of the image forming device, and is detachably mounted on the main body of the image forming device. The image forming device is provided with an imaging engagement head. A rotating engagement head for receiving a driving force is provided at one end of the process box, and the rotating engagement head is engaged with the imaging engagement head in the image forming device to transmit the rotating driving force to the process box, so that the rotating elements (such as developing elements, stirring elements, etc.) inside the process box rotate to participate in the developing operation of the image forming device. Before the image forming device performs a developing operation, the user needs to install the process box into the image forming device, or, when the powder box is exhausted, a new powder box needs to be replaced, which requires the rotating engagement head to be separable from the imaging engagement head.

[0003] In the prior art, the rotating engaging head and the imaging engaging head are separated by setting a linkage structure between the front cover of the image forming device and the imaging engaging head. The imaging engaging head is axially retracted by opening the door to separate the two. After the powder box is installed in place, the imaging engaging head is axially extended by closing the front cover to engage the two.

[0004] In the above manner, due to the existence of the linkage structure, the operating force when opening the front cover is increased, which affects the user's operating experience. Utility Model Content

[0005] The embodiments of the utility model provide a driving module and an image forming device to solve the problem that when the processing box is disassembled, the front cover is opened, the front cover drives the imaging engaging head to move away from the processing box through the transmission assembly, and the rotating engaging head is separated from the imaging engaging head, resulting in increased pulling force when opening the front cover, making it inconvenient to open the front cover, affecting the user's operating experience.

[0006] On the one hand, an embodiment of the utility model provides a driving module capable of automatically engaging with a driven member to enable the driven member to operate, the driving module comprising a telescopic mechanism and a first engaging head, the driven member having a second engaging head, the telescopic mechanism comprising a power receiving member and a transmission member;

[0007] The power receiving member is connected to a driving source, the transmission member is movably connected to the power receiving member, and the first meshing head is connected to the transmission member. When the power receiving member receives a driving force from the driving source and is used to drive the driven member to move, the transmission member drives the first meshing head to move toward the driven member, and the first meshing head and the second meshing head mesh with each other to enable the driven member to move.

[0008] In a possible embodiment, the power receiving member has a first driving portion, and the transmission member has a guide portion. The first driving portion is configured so that when the power receiving member is driven by the driving source, the power receiving member rotates, and then the first driving portion pushes the guide portion to apply a force to the transmission member, so that the transmission member moves in a direction close to the driven member.

[0009] In a possible implementation, the first driving portion includes a first driving platform, the transmission member has a movable hole, the guide portion includes a spiral guide surface arranged on the inner wall of the movable hole, and the first driving platform can abut against the spiral guide surface along the axial direction of the transmission member.

[0010] In a possible embodiment, the power receiving member has a second driving portion, and the transmission member has a mating portion, and the second driving portion is configured to abut against the mating portion to drive the transmission member to rotate when the power receiving member is driven by the driving source and the first engaging head is engaged with the second engaging head.

[0011] In a possible embodiment, the second driving portion includes at least one second driving platform, the matching portion includes at least one matching position arranged on the outer side of the transmission member, each second driving platform corresponds to one matching position, the second driving platform is movably arranged in the matching position, an elastic arm is arranged in the matching position, and the second driving platform can squeeze the elastic arm and then abut against the end face of the matching position.

[0012] In a possible implementation, when the power receiving member stops receiving the driving force from the driving source for driving the driven member to operate, the telescopic mechanism drives the first engaging head to move away from the driven member, and the first engaging head and the second engaging head are separated from each other.

[0013] In a possible embodiment, the telescopic mechanism also includes a mounting frame, the mounting frame has a through hole for the first engaging head to pass through, a limiting hook is provided on the through hole, and the transmission member is provided with a mating hook, and the limiting hook is configured to abut against the mating hook to prevent the transmission member from rotating when the driving source drives the power receiving member to rotate and the first engaging head is not engaged with the second engaging head.

[0014] In a possible implementation, the telescopic mechanism further includes a first elastic member, which is connected between the power receiving member and the transmission member, and when the driving source stops, the first elastic member drives the transmission member and the first engaging head to move in a direction away from the driven member.

[0015] In a possible embodiment, the mating hook can move along the circumference of the transmission member, and the limiting hook has an extrusion surface. The mating hook is configured to rotate along the extrusion surface and be squeezed by the limiting hook when the first elastic member drives the transmission member and the first engaging head to move in a direction away from the driven member.

[0016] On the other hand, an embodiment of the present utility model provides an image forming device, comprising a driven member and a driving module as described above;

[0017] The driven member is a replaceable consumables unit provided in the image forming device.

[0018] The embodiment of the utility model provides a driving module and an image forming device, including a telescopic mechanism and a first meshing head, the driven member has a second meshing head, the telescopic mechanism is connected to a driving source, when the driving source is started, the telescopic mechanism drives the first meshing head to move in a direction close to the driven member, the first meshing head and the second meshing head mesh with each other, so that the driven member operates. The first meshing head can mesh with the second meshing head of the driven member by means of the power of the driving source of the image forming device, so that the front cover does not need to be configured with a transmission component, so that the pulling force is reduced when the front cover is opened, thereby facilitating the opening of the front cover and improving the user's operating experience. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 A first perspective schematic diagram of a driving source and a driving module is provided for an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A second perspective schematic diagram of a driving source and a driving module in FIG.

[0022] Figure 3 An exploded schematic diagram of a driving source and a driving module provided in an embodiment of the utility model;

[0023] Figure 4 A cross-sectional schematic diagram of a driving module when the imaging engagement head provided by an embodiment of the utility model is in an engagement state;

[0024] Figure 5 A partial schematic diagram of a driving module when the imaging engagement head provided by an embodiment of the utility model is in a separated state;

[0025] Figure 6 A partial schematic diagram of a driving module when the imaging engagement head provided by an embodiment of the utility model is in an engagement state;

[0026] Figure 7 A schematic diagram of the structure of a driving member provided in an embodiment of the utility model;

[0027] Figure 8 for Figure 7 A cross-sectional schematic diagram of a driving member in FIG.

[0028] Fig. 9 A schematic diagram of a transmission member provided by an embodiment of the utility model from a first perspective;

[0029] Fig.10 for Fig. 9 A second perspective schematic diagram of the transmission member in FIG.

[0030] Fig.11 for Fig. 9 A cross-sectional schematic diagram of a transmission member in;

[0031] Fig.12 for Fig. 9 Another cross-sectional schematic diagram of the transmission member in FIG.

[0032] Fig.13 A schematic diagram of the structure of a rotation direction adjusting member provided in an embodiment of the utility model;

[0033] Fig.14 A schematic structural diagram of an imaging engagement head provided by an embodiment of the utility model;

[0034] Fig.15 The present invention is a schematic diagram of the interior of an image forming device provided by an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 10-power receiving member; 10a-gear; 10b-connecting column; 10c-first connecting part; 101-engaging tooth; 102-rotating hook; 103-first driving platform; 104-second driving platform; 20-transmission member; 20a-transmission member body; 20b-second connecting part; 201-movable hole; 202-spiral guide surface; 203-matching position; 204-first elastic arm; 204a-abutting boss; 205-second elastic arm; 205a-matching hook; 2051 -first mating surface; 2052-second mating surface; 206-clamping cavity; 207-bayonet; 208-driving boss; 30-first elastic member; 40-first meshing head; 401-clamping portion; 402-biting portion; 41-second elastic member; 50-driving source; 601-first plate; 602-second plate; 603-rotation adjustment member; 604-riveting shaft; 604a-clamping portion; 605-through hole; 606-limiting hook; 6061-limiting surface; 6062-extrusion surface;

[0037] 11-replaceable consumable unit; 12-paper pickup roller; 13-paper box; 14-laser scanning unit; 15-discharge roller; 16-transfer roller; 17-first working roller; 18-second working roller. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly defined and specified, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be fixed connection, connection, or integration; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact with each other, or the first and second features are in indirect contact with each other through an intermediate medium.

[0042] In the above description, the description with reference to the term "example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without contradiction.

[0043] As described in the background technology, when the processing box is removed, the front cover is opened, and the front cover drives the imaging engagement head to move away from the processing box through the transmission assembly, and the second engagement head is separated from the imaging engagement head, resulting in an increase in pulling force when the front cover is opened, making it inconvenient to open the front cover, affecting the user's operating experience. The inventor has found through research that the reason for this problem is that when the front cover is opened, the imaging engagement head is driven by the transmission assembly, resulting in an increase in pulling force when the front cover is opened, making it inconvenient to open the front cover, affecting the user's operating experience.

[0044] In order to solve the above problems, an embodiment of the utility model provides a driving module and an image forming device, wherein a first engaging head can engage with a second engaging head of a driven member with the help of power from a driving source of the image forming device, so that the front cover does not need to be configured with a transmission assembly, thereby reducing the pulling force when opening the front cover, thereby facilitating opening of the front cover and improving the user's operating experience.

[0045] The driving module and the image forming device provided by the embodiments of the utility model are described in detail below in conjunction with specific embodiments.

[0046] The embodiment of the utility model provides a driving module, which can automatically engage with a driven member of an image forming device to enable the driven member to operate. For example, the driven member can be a replaceable consumable unit 11 (see Fig.15 As shown), when the driving module is engaged with the replaceable consumable unit 11, the rotating element inside the replaceable consumable unit can be rotated.

[0047] like Figure 1 and Figure 2As shown, the driving module includes a telescopic mechanism and a first meshing head 40, the driven member has a second meshing head, the telescopic mechanism is connected to the driving source 50, when the driving source 50 is started, that is, when the driving source 50 outputs power to the driving module, the telescopic mechanism drives the first meshing head 40 to move in a direction close to the driven member, and the first meshing head 40 and the second meshing head are meshed with each other to make the driven member run. In this way, the first meshing head 40 can mesh with the second meshing head of the driven member by means of the power output by the driving source 50 of the image forming device, so that the front cover does not need to be configured with a transmission component, so that the pulling force is reduced when the front cover is opened, thereby facilitating the opening of the front cover and improving the user's operating experience.

[0048] In a possible implementation, Figure 3 As shown, the telescopic mechanism includes a power receiving member 10 and a transmission member 20 ; the power receiving member 10 is connected to a driving source 50 , the transmission member 20 is movably connected to the power receiving member 10 , and the first engaging head 40 is connected to the transmission member 20 .

[0049] The driving source 50 can output power to the power receiving member 10 .

[0050] When the driving source 50 of the image forming device is started, the driving source 50 outputs power to the driving module, the power receiving member 10 receives the power output by the driving source 50, the power receiving member 10 drives the transmission member 20 to move toward the direction close to the driven member, and the transmission member 20 drives the first engaging head 40 to move toward the direction close to the driven member, so that the first engaging head 40 can engage with the second engaging head of the driven member.

[0051] In a possible implementation, Figure 2 and Figure 3 As shown, the driving source 50 includes a driving gear, and the power receiving member 10 has a coupling tooth 101 (see Figure 7 As shown), the engaging teeth 101 mesh with the driving source 50 to rotate the power receiving member 10.

[0052] The power receiving member 10 is a rotating body. The power receiving member 10 includes a gear 10a (see Figure 7 As shown), the engaging teeth 101 are located on the gear 10a.

[0053] Figure 5 The +W direction in represents the clockwise direction, and the -W direction represents the clockwise direction. Figure 5 and Figure 6 As shown, when the driving source 50 rotates clockwise, the driving source 50 drives the gear 10 a to rotate counterclockwise, that is, the driving source 50 drives the power receiving member 10 to rotate counterclockwise.

[0054] like Figures 1 to 3As shown, the driving module includes a mounting frame, the mounting frame includes a first plate 601, a second plate 602 and a rotational direction adjusting member 603, and the rotational direction adjusting member 603 is fixed between the first plate 601 and the second plate 602. In this embodiment, the first plate 601 and the second plate 602 are made of sheet metal, and the rotational direction adjusting member 603 is made of plastic.

[0055] A riveting shaft 604 is provided on the first plate 601 , and the riveting shaft 604 is riveted on the first plate 601 .

[0056] The gear 10a is rotatably fixed on the riveted shaft 604. Specifically, Figure 3 , Figure 7 , Figure 8 As shown, a rotating hook 102 is provided on the gear 10a, and the riveted shaft 604 has a clamping portion 604a. The rotating hook 102 can be rotatably clamped on the clamping portion 604a, so that the power receiving member 10 can rotate relative to the riveted shaft 604.

[0057] The engaging portion 604 a may be an engaging groove matched with the rotating hook 102 .

[0058] The power receiving member 10 has a first driving portion, and the transmission member 20 has a guide portion. The first driving portion is configured to rotate along the guide portion and apply a force to the transmission member 20 to move the transmission member 20 toward the processing box when the driving source 50 drives the power receiving member 10 to rotate and the first engaging head 40 is not engaged with the second engaging head of the driven member.

[0059] The transmission member 20 is a rotating body. Figure 7 , Figures 9 to 12 As shown, the first driving part includes a first driving platform 103, the transmission member 20 has a movable hole 201, and the guide portion includes a spiral guide surface 202 arranged on the inner wall of the movable hole 201. The first driving platform 103 can abut against the spiral guide surface 202 along the axial direction of the transmission member 20. In this embodiment, the first driving platform 103 is welded to the gear 10a away from the first plate 601. Figure 5 and Figure 7 As shown, when the driving source 50 drives the power receiving member 10 to rotate, and the first engaging head 40 is not engaged with the second engaging head of the driven member, the first driving platform 103 rotates counterclockwise along the spiral guide surface 202. Since the first driving platform 103 abuts against the spiral guide surface 202 along the axial direction of the transmission member 20, the first driving platform 103 applies a force to the transmission member 20, which can make the transmission member 20 have a tendency to rotate along its circumferential direction and a tendency to move axially, so that the transmission member 20 can move toward the driven member and make the first engaging head 40 engage with the second engaging head of the driven member.

[0060] The first driving platform 103 may be in a cylindrical shape, a square column shape, or other shapes.

[0061] The movable hole 201 is cylindrical in shape.

[0062] The spiral guide surface 202 has a first end close to the first plate 601 and a second end away from the first plate 601. When the first meshing head 40 is separated from the second meshing head of the driven member, that is, when the transmission member 20 is in the initial state, the first drive platform 103 is located at the second end of the spiral guide surface 202; when the driving source 50 drives the power receiving member 10 to rotate, and the first meshing head 40 is not meshed with the second meshing head of the driven member, the first drive platform 103 rotates counterclockwise along the spiral guide surface 202, and the first drive platform 103 rotates from the second end of the spiral guide surface 202 toward the first end of the spiral guide surface 202. Since the first drive platform 103 abuts against the spiral guide surface 202 along the axial direction of the transmission member 20, the first drive platform 103 applies a force to the transmission member 20, so that the transmission member 20 can move toward the driven member.

[0063] The transmission member 20 includes a transmission member body 20a, the axis of the transmission member body 20a coincides with the axis of the gear 10a, and the movable hole 201 is provided on the transmission member body 20a.

[0064] The spiral guide surface 202 is arranged in a spiral shape, and the axis of the spiral guide surface 202 coincides with the axis of the transmission member 20 .

[0065] The power receiving member 10 has a second driving portion, and the transmission member 20 has a matching portion. The second driving portion is configured to abut against the matching portion to drive the transmission member 20 to rotate when the driving source 50 drives the power receiving member 10 to rotate and the first engaging head 40 engages with the second engaging head of the driven member.

[0066] like Figure 7 , Fig. 9 and Fig.10As shown, the second driving portion includes at least one second driving platform 104, and the matching portion includes at least one matching position 203 arranged on the outer side of the transmission member, each second driving platform 104 corresponds to a matching position 203, and the matching position 203 extends along the circumferential direction of the transmission member 20. The second driving platform 104 is movably arranged in the matching position 203, and a first elastic arm 204 is arranged in the matching position 203. The first elastic arm 204 has a contact boss 204a, and the second driving platform 104 can squeeze the abutment boss 204a and then abut against the end face of the matching position 203. In this embodiment, the second driving part includes two second driving platforms 104, which are welded to the side of the gear 10a away from the first plate 601, and the two second driving platforms 104 are arranged at intervals along the circumferential direction of the gear 10a. The distance between the second driving platform 104 and the center of the gear 10a is greater than the distance between the first driving platform 103 and the center of the gear 10a. The matching part includes two matching positions 203 arranged on the outer side of the transmission member 20, and the two matching positions 203 are arranged at intervals along the circumferential direction of the transmission member 20. Figure 4 and Figure 6 As shown, when the driving source 50 drives the power receiving member 10 to rotate, and the first meshing head 40 meshes with the second meshing head of the driven member, the first driving platform 103 is located at the first end of the spiral guide surface 202, the second driving platform 104 abuts against the abutment boss 204a and squeezes the first elastic arm 204 and then abuts against the end face of the matching position 203, the driving source 50 rotates clockwise, the driving source 50 drives the gear 10a to rotate counterclockwise, the gear 10a drives the transmission member 20 to rotate counterclockwise through the abutment of the second driving platform 104 with the end face of the matching position 203, the transmission member 20 drives the first meshing head 40 to rotate, and the first meshing head 40 drives the second meshing head of the driven member to rotate.

[0067] like Fig. 9 and Fig.10 As shown, the matching position 203 can be set in a groove on the outer side of the transmission member body 20a, and the matching position 203 passes through the end of the transmission member body 20a close to the first plate 601, and the matching position 203 passes through the radial outer side of the transmission member body 20a. The second drive platform 104 is inserted into the matching position 203 along the axial direction of the gear 10a, and the second drive platform 104 contacts the radial side of the matching position 203 of the transmission member 20.

[0068] The surfaces of the second driving platform 104 and the matching position 203 that are in contact with each other in the radial direction of the transmission member main body 20a are both cylindrical surfaces.

[0069] One end of the first elastic arm 204 is fixedly connected to the transmission member body 20a, and the other end of the first elastic arm 204 is suspended, that is, the other end of the first elastic arm 204 does not contact the transmission member body 20a, and the abutment boss 204a is located at the suspended end of the first elastic arm 204. When the second drive platform 104 presses the abutment boss 204a along the circumferential direction of the transmission member 20, the first elastic arm 204 is elastically deformed, so that the second drive platform 104 can abut against the end surface of the matching position 203.

[0070] In the circumferential direction of the transmission member 20, the length of the matching position 203 is greater than the length of the second driving platform 104. Figure 5 As shown, when the driving source 50 drives the power receiving member 10 to rotate, and the first meshing head 40 is not meshed with the second meshing head of the driven member, the second driving platform 104 can be prevented from abutting against the end surface of the matching position 203. Since the first driving platform 103 abuts against the spiral guide surface 202, the transmission member 20 can be moved toward the driven member; Figure 6 As shown, when the first meshing head 40 meshes with the second meshing head of the driven part, the second driving platform 104 squeezes the abutment boss 204a and abuts against the end face of the matching position 203, so that the gear 10a can drive the transmission part 20 to rotate, the transmission part 20 drives the first meshing head 40 to rotate, and the first meshing head 40 drives the second meshing head of the driven part to rotate.

[0071] In a possible implementation, when the driving source 50 stops, the telescopic mechanism drives the first engaging head 40 to move in a direction away from the driven member, and the first engaging head 40 is separated from the second engaging head so that the driven member can be removed.

[0072] Among them, Figure 4 As shown, the telescopic mechanism includes a first elastic member 30. The first elastic member 30 can be a member that can exert a force on the transmission member 20 to move away from the process box when the driving source 50 of the image forming device stops, that is, when the driving source 50 no longer outputs power to the driving module.

[0073] The first elastic member 30 is located in the movable hole 201. The first elastic member 30 is connected between the power receiving member 10 and the transmission member 20 along the axial direction of the transmission member 20. When the driving source 50 stops, that is, the driving source 50 no longer outputs power to the driving module, the first elastic member 30 drives the transmission member 20 and the first engaging head 40 to move in a direction away from the driven member.

[0074] like Figure 7As shown, a connecting column 10b and a first connecting portion 10c are provided on the side of the gear 10a facing the transmission member 20, the connecting column 10b is fixed on the gear 10a, the axis of the connecting column 10b coincides with the axis of the gear 10a, the riveted shaft 604 is rotatably inserted in the connecting column 10b, and the first connecting portion 10c is fixed on the connecting column 10b.

[0075] The first driving platform 103 can be fixedly connected to the connecting column 10b. This arrangement can improve the strength of the first driving platform 103.

[0076] like Fig.11 and Fig.12 As shown, the second connection part 20b is provided at one end of the movable hole 201 away from the power receiving member 10, and the second connection part 20b is fixedly connected to the transmission member body 20a. In some examples, the first connection part 10c and the second connection part 20b can both be connecting rods.

[0077] like Figure 4 As shown, the first elastic member 30 may be a tension spring, and two ends of the tension spring are respectively hung on the first connecting portion 10c and the second connecting portion 20b.

[0078] like Fig. 9 , Fig.10 and Fig.13 As shown, the mounting frame has a through hole 605 through which the first meshing head 40 can pass, and the through hole 605 passes through the second plate 602 and the rotation direction adjusting member 603. A limit hook 606 is provided on the through hole 605, and the limit hook 606 is located on the rotation direction adjusting member 603. The transmission member 20 is provided with a matching hook 205a, and the limit hook 606 is configured to abut against the matching hook 205a when the driving source 50 drives the power receiving member 10 to rotate and the first meshing head 40 is not meshed with the second meshing head of the driven member, so as to prevent the transmission member 20 from rotating.

[0079] Specifically, if Fig. 9 and Fig.10 As shown, the transmission member 20 is provided with a plurality of mating hooks 205a, and the plurality of mating hooks 205a are arranged at intervals along the circumferential direction of the transmission member 20, and the mating hooks 205a have a first mating surface 2051; Fig.13As shown, a plurality of limit hooks 606 are arranged on the through hole 605, and the plurality of limit hooks 606 are arranged at intervals along the circumferential direction of the through hole 605. The limit hook 606 has a limit surface 6061, and the limit surface 6061 and the first mating surface 2051 are both planes. The first mating surface 2051 can abut against the limit surface 6061 along the circumferential direction of the transmission member 20. When the driving source 50 drives the power receiving member 10 to rotate, and the first meshing head 40 is not meshed with the second meshing head of the driven member, the first driving platform 103 rotates counterclockwise along the spiral guide surface 202, and the first driving platform 103 abuts against the spiral guide surface 202 along the axial direction of the transmission member 20. The force applied by the first driving platform 103 to the transmission member 20 can be decomposed into a component force in the circumferential direction of the transmission member 20 and a component force in the axial direction of the transmission member 20, so that the transmission member 20 has a tendency to rotate along its circumferential direction and a tendency to move axially. The first mating surface 2051 of the mating hook 205a abuts against the limiting surface 6061 of the limiting hook 606 along the circumferential direction of the transmission member 20, preventing the transmission member 20 from rotating, so that the transmission member 20 can only move along its axial direction toward the driven member, and the tension spring is stretched. The transmission member 20 drives the first meshing head 40 to pass through the through hole 605 and then meshes with the second meshing head of the driven member.

[0080] like Figure 4 As shown, when the driving source 50 stops, the driving source 50 does not output power to the power receiving member 10, and the first elastic arm 204 applies a force to the second driving platform 104 through the abutment boss 204a under the action of its own elastic force, so that the power receiving member 10 rotates clockwise, the abutment boss 204a is disengaged from the second driving platform 104, and the first driving platform 103 is disengaged from the spiral guide surface 202. At the same time, the transmission member 20 moves away from the driven member under the tension of the tension spring. When the first driving platform 103 and the second end of the spiral guide surface 202 are connected, the power receiving member 10 stops rotating and the transmission member 20 stops moving. At this time, the first engaging head 40 is separated from the second engaging head of the driven member.

[0081] In a possible implementation, Fig.13 As shown, the mating hook 205a can move along the circumference of the transmission member 20, and the limiting hook 606 has an extrusion surface 6062. The mating hook 205a is configured to rotate along the extrusion surface 6062 and be squeezed by the limiting hook 606 when the first elastic member 30 drives the transmission member 20 to move away from the driven member.

[0082] Among them, Fig. 9 and Fig.10As shown, a second elastic arm 205 is provided on the transmission member body 20a, one end of the second elastic arm 205 is fixedly connected to the transmission member body 20a, and the other end of the second elastic arm 205 is suspended, that is, the other end of the second elastic arm 205 is not in contact with the transmission member body 20a, and the matching hook 205a is located at one end of the suspended second elastic arm 205.

[0083] The extrusion surface 6062 is connected to the limiting surface 6061 , and the extrusion surface 6062 is a curved surface.

[0084] like Fig. 9 As shown, the matching hook 205a has a second matching surface 2052 connected to the first matching surface 2051, and the second matching surface 2052 is a curved surface. When the first elastic member 30 drives the transmission member 20 to move away from the driven member, if the matching hook 205a collides with the limiting hook 606, the matching hook 205a rotates along the extrusion surface 6062 of the limiting hook 606 through the second matching surface 2052, and the matching hook 205a is squeezed by the limiting hook 606 to deform the second elastic arm 205, so that the transmission member 20 can move away from the driven member along its axial direction. If the matching hook 205a does not collide with the limiting hook 606, the transmission member 20 directly moves away from the driven member along its axial direction.

[0085] In a possible implementation, Figure 3 and Figure 4 As shown, the first meshing head 40 is engaged with the transmission member 20, and a second elastic member 41 is arranged between the first meshing head 40 and the transmission member 20. The second elastic member 41 is compressed between the first meshing head 40 and the transmission member 20. In this way, the second elastic member 41 applies pressure to the first meshing head 40 and the transmission member 20 respectively, so that the first meshing head 40 and the transmission member 20 remain stable in the axial direction of the transmission member 20.

[0086] The second elastic member 41 may be a compression spring.

[0087] Among them, Fig. 9 As shown, the transmission member body 20a has a snap-fit ​​cavity 206, a plurality of snap-fit ​​ports 207 are arranged on the inner wall of the snap-fit ​​cavity 206, a plurality of drive bosses 208 are arranged in the snap-fit ​​cavity 206, and the plurality of snap-fit ​​ports 207 and the plurality of drive bosses 208 are arranged at intervals along the circumferential direction of the transmission member 20.

[0088] The first engagement head 40 is located in the engagement cavity 206. Fig.14 As shown, the first meshing head 40 has a plurality of engaging portions 401 and a plurality of biting portions 402, each engaging portion 401 is engaged in a bayonet 207, and each biting portion 402 abuts against the driving boss 208 along the circumferential direction of the transmission member 20. In this way, the transmission member 20 can drive the first meshing head 40 to move.

[0089] The embodiment of the utility model provides an image forming device, comprising a driven component and a driving module; the driven component is a replaceable consumable unit 11 arranged in the image forming device.

[0090] Among them, the driving module in this embodiment has the same structure as the driving module provided in any of the above embodiments, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiments.

[0091] Alternatively, if Fig.15 As shown, the device body includes a replaceable consumables unit 11, a paper pickup roller 12, a paper box 13, a laser scanning unit 14, a discharge roller 15 and a transfer roller 16.

[0092] The number of replaceable consumable units 11 may be 4 or 1. In some examples, the number of replaceable consumable units 11 is 4, and the 4 replaceable consumable units 11 correspond to 4 printing colors respectively. The specific structure of the replaceable consumable unit 11 includes a photosensitive drum, a charging roller, a developing roller, and a powder bin for holding the toner of each color.

[0093] The laser scanning unit 14 includes four optical paths. The charging rollers of the four replaceable consumable units 11 are used to charge the surfaces of the four photosensitive drums respectively, and the four optical paths of the laser scanning unit 14 respectively emit laser beams to form electrostatic latent images on the surfaces of the photosensitive drums. The developing rollers of the four replaceable consumable units 11 are used to develop and form toner images of respective colors on the surfaces of the photosensitive drums respectively.

[0094] The toner image is transferred to the paper through the transfer roller 16. The paper pickup roller 12 takes out the paper from the paper box 13 one by one, and the paper entering the conveying path is conveyed to the transfer roller 16 for transfer imaging. The transfer roller 16 conveys the imaged paper to the clamping area of ​​the first working roller 17 and the second working roller 18. The first working roller 17 and the second working roller 18 are used to fix the toner image on the paper. The first working roller 17 can adopt a ceramic heating method. The first working roller 17 and the second working roller 18 convey the fixed paper to the discharge roller 15, and the discharge roller 15 discharges the paper, thereby completing the image printing.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A driving module capable of automatically engaging with a driven member to cause the driven member to operate, characterized in that: The driving module comprises a telescopic mechanism and a first engaging head, the driven member comprises a second engaging head, and the telescopic mechanism comprises a power receiving member and a transmission member; The power receiving member is connected to a driving source, the transmission member is movably connected to the power receiving member, and the first meshing head is connected to the transmission member. When the power receiving member receives a driving force from the driving source and is used to drive the driven member to move, the transmission member drives the first meshing head to move toward the driven member, and the first meshing head and the second meshing head mesh with each other to enable the driven member to move.

2. The driving module according to claim 1, characterized in that: The power receiving member has a first driving part, and the transmission member has a guide part. The first driving part is configured so that when the power receiving member is driven by the driving source, the power receiving member rotates, and then the first driving part pushes the guide part to apply a force to the transmission member, so that the transmission member moves in a direction close to the driven member.

3. The driving module according to claim 2, characterized in that: The first driving portion includes a first driving platform, the transmission member has a movable hole, the guide portion includes a spiral guide surface arranged on the inner wall of the movable hole, and the first driving platform can abut against the spiral guide surface along the axial direction of the transmission member.

4. The driving module according to claim 1, characterized in that: The power receiving member has a second driving portion, and the transmission member has a matching portion. The second driving portion is configured to abut against the matching portion to drive the transmission member to rotate when the power receiving member is driven by the driving source and the first engaging head is engaged with the second engaging head.

5. The driving module according to claim 4, characterized in that: The second driving portion includes at least one second driving platform, and the matching portion includes at least one matching position arranged on the outer side of the transmission member, each second driving platform corresponds to one matching position, and the second driving platform can be movably arranged in the matching position, and an elastic arm is arranged in the matching position. The second driving platform can squeeze the elastic arm and then abut against the end surface of the matching position.

6. The driving module according to any one of claims 1 to 5, characterized in that: When the power receiving member stops receiving the driving force from the driving source for driving the driven member to move, the telescopic mechanism drives the first engaging head to move away from the driven member, and the first engaging head and the second engaging head are separated from each other.

7. The driving module according to claim 6, characterized in that: The telescopic mechanism also includes a mounting frame, which has a through hole for the first engaging head to pass through, and a limit hook is provided on the through hole. The transmission member is provided with a matching hook, and the limit hook is configured to abut against the matching hook to prevent the transmission member from rotating when the driving source drives the power receiving member to rotate and the first engaging head is not engaged with the second engaging head.

8. The driving module according to claim 7, characterized in that: The telescopic mechanism further comprises a first elastic member, which is connected between the power receiving member and the transmission member. When the driving source stops, the first elastic member drives the transmission member and the first engaging head to move in a direction away from the driven member.

9. The driving module according to claim 8, characterized in that: The mating hook can move along the circumference of the transmission member, and the limiting hook has an extrusion surface. The mating hook is configured to rotate along the extrusion surface and be squeezed by the limiting hook when the first elastic member drives the transmission member and the first engaging head to move in a direction away from the driven member.

10. An image forming device, characterized in that: comprising a driven component and a driving module according to any one of claims 1 to 9; The driven member is a replaceable consumables unit provided in the image forming device.

Images