Processing box and imaging device

Abstract

The utility model discloses a processing box and an imaging device, and the processing box comprises a photosensitive assembly which comprises a photosensitive drum; the developing assembly comprises a developing roller; the first end cover comprises at least one first through hole; the transmission assembly is arranged at the ends of the photosensitive assembly and the developing assembly, the transmission assembly is provided with a first transmission end extending out of the first end cover, and the transmission assembly is arranged to transmit external driving force to the photosensitive drum and the developing roller; the protective cover is arranged between the first end cover and the developing roller, the protective cover is provided with a second through hole, the first transmission end penetrates through the first through hole and the second through hole, and at least one part of gap is formed among the inner wall surface of the first through hole, the inner wall surface of the second through hole and the peripheral surface of the first transmission end. According to the processing box disclosed by the embodiment of the utility model, the friction force between the transmission end and the opening of the end cover can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a processing box and an imaging device. Background Art

[0002] When the printer is working, the printing function is realized by driving the photosensitive drum and the developing roller to rotate. The driving ends of the photosensitive drum and the developing roller of the existing printer are generally connected to the driving device of the printer through the openings of the end covers located at both ends of the photosensitive drum and the developing roller, so that the driving device can drive the photosensitive drum and the developing roller to rotate.

[0003] Since the driving ends of the photosensitive drum and the developing roller will constantly rub against the inner wall surface of the opening on the end cover when rotating, it is easy to cause the photosensitive drum and the developing roller to rotate poorly, affecting the printing effect of the printer. Utility Model Content

[0004] The embodiments of the utility model provide a processing box and an imaging device, which can reduce the friction between the transmission end and the opening of the end cover.

[0005] In the first aspect, an embodiment of the utility model provides a processing box, which includes: a photosensitive component, the photosensitive component includes a photosensitive drum; a developing component, the developing component includes a developing roller; a first end cover, the first end cover includes at least one first through hole; a transmission component, the transmission component is arranged at the end of the photosensitive component and the developing component, the transmission component has a first transmission end extending outside the first end cover, and the transmission component is arranged to transmit an external driving force to the photosensitive drum and the developing roller; a protective cover, the protective cover is arranged between the first end cover and the developing roller, the protective cover has a second through hole, the first transmission end is penetrated through the first through hole and the second through hole, and there is at least a partial gap between the inner wall surface of the first through hole, the inner wall surface of the second through hole and the outer peripheral surface of the first transmission end.

[0006] The developing roller and the photosensitive drum of the processing box of the utility model embodiment are connected to the external transmission through the transmission assembly. Since there is a partial gap between the outer peripheral surface of the first transmission end and the inner wall surfaces of the first through hole and the second through hole, when the transmission end rotates, the outer peripheral surface of the transmission end and the inner wall surfaces of the first through hole and the second through hole are not completely in contact, thereby reducing the contact area between the transmission end and the first through hole and the second through hole, so as to reduce the friction between the transmission end and the first through hole and the second through hole when rotating, thereby ensuring that the developing roller and the photosensitive drum can rotate smoothly.

[0007] Optionally, the inner wall surface of the first through hole abuts against the outer circumference surface of the first transmission end in a first direction, and the inner wall surface of the second through hole abuts against the outer circumference surface of the first transmission end in a second direction intersecting the first direction.

[0008] Optionally, the processing box also includes a second end cover, the photosensitive drum has a second transmission end, the first end cover also includes at least one third through hole, the photosensitive component and the developing component are arranged between the first end cover and the second end cover, and the two ends of the photosensitive drum and the developing roller are rotatably connected to the first end cover and the second end cover respectively; the second transmission end is passed through the third through hole and connected to the transmission component, and there is a partial gap between the inner wall surface of the third through hole and the outer peripheral surface of the second transmission end.

[0009] Optionally, the first through hole, the second through hole and the third through hole are in a polygonal or arc-shaped closed shape.

[0010] Optionally, the transmission assembly includes a first transmission assembly and a second transmission member, the first transmission assembly includes a first transmission member, the first transmission member is connected to the developing roller for transmission, and the second transmission member is connected to the second transmission end; the driving end of the external driving assembly can be connected to the first transmission member and the second transmission member respectively and drive the developing roller and the photosensitive drum to rotate.

[0011] Optionally, the first transmission end is inserted through the first through hole and the second through hole and is transmission-connected to the first transmission member, and the first transmission member and the second transmission member are arranged on a side of the first end cover away from the protective cover.

[0012] Optionally, the first transmission assembly also includes a first gear, a second gear, a third gear and an ink-absorbing roller, a protective cover is provided on the first gear, the second gear and the third gear, the transmission shaft of the first gear is passed through the first through hole and the second through hole and is connected to the first transmission member to form a first transmission end, and the outer peripheral surface of the ink-absorbing roller abuts the outer peripheral surface of the developing roller; the second gear and the third gear are meshed and connected with the first gear, the second gear is coaxially connected to the developing roller, and the third gear is coaxially connected to the ink-absorbing roller.

[0013] Optionally, the developing assembly also includes a developing frame, a first end cover and a second end cover are arranged at both ends of the developing frame, the developing frame has a storage cavity for storing the developer, a developing roller and an ink-absorbing roller are arranged in the developing frame, and the ink-absorbing roller is arranged to supply the developer to the developing roller.

[0014] Optionally, the first transmission end has a first support portion and a second support portion, the first support portion is located on the outward side of the second support portion and the diameter of the first support portion is smaller than the diameter of the second support portion, the outer peripheral surface of the first support portion abuts against the inner wall surface of the first through hole, and the outer peripheral surface of the second support portion abuts against the inner wall surface of the second through hole.

[0015] Optionally, the photosensitive component also includes a photosensitive frame, a first end cover and a second end cover are arranged on both sides of the photosensitive frame, and the photosensitive drum is arranged in the photosensitive frame.

[0016] In a second aspect, an embodiment of the utility model provides an imaging device, comprising a processing box of any one of the aforementioned embodiments of the first aspect of the utility model; a transfer roller, the outer peripheral surface of the transfer roller abuts against the outer peripheral surface of the photosensitive drum, and one end of the transfer roller is connected to a transmission component; a driving component, the driving component is connected to the transmission component so that the driving component can drive the developing roller, the photosensitive drum, and the transfer roller to rotate; and a shell, the processing box, the transfer roller, and the driving component are arranged in the shell.

[0017] The imaging device of the embodiment of the utility model includes a processing box, and the developing roller and the photosensitive drum of the processing box are connected to the external transmission through a transmission component. Since there is a partial gap between the outer peripheral surface of the first transmission end and the inner wall surface of the first through hole and the second through hole, when the transmission end rotates, the outer peripheral surface of the transmission end and the inner wall surface of the first through hole and the second through hole are not completely in contact, thereby reducing the contact area between the transmission end and the first through hole and the second through hole, so as to reduce the friction between the transmission end and the first through hole and the second through hole during rotation, thereby ensuring that the developing roller and the photosensitive drum can rotate smoothly, so that the imaging device can solve the problem that the developing roller and the photosensitive drum cannot rotate smoothly due to excessive friction between the transmission end and the first through hole and the second through hole during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the processing box of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another angle of an embodiment of the processing box of the utility model;

[0021] Figure 3 A schematic side view of an embodiment of a processing box of the utility model;

[0022] Figure 4 A schematic diagram of the structure of a first through hole and a second through hole of an embodiment of a processing box of the utility model;

[0023] Figure 5 A cross-sectional schematic diagram of an embodiment of a processing box of the utility model;

[0024] Figure 6 A schematic diagram of the structure of a protective cover of an embodiment of a processing box of the utility model;

[0025] Figure 7 For this utility model Figure 4 A side view schematic diagram of

[0026] Figure 8 It is a structural schematic diagram of a transmission assembly of an embodiment of a processing box of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the first transmission end of an embodiment of the processing box of the utility model.

[0028] Description of Figure Numbers:

[0029] 100-processing box;

[0030] 110-photosensitive component; 111-photosensitive drum; 112-photosensitive frame;

[0031] 120-developing assembly; 121-developing roller; 122-developing frame;

[0032] 130 - first end cover; 131 - first through hole; 132 - third through hole; 133 - observation window;

[0033] 140- second end cover;

[0034] 150-transmission assembly; 151-first transmission assembly; 1511-first gear; 1512-second gear; 1513-third gear; 1514-first transmission member; 1515-ink absorbing roller; 152-second transmission member;

[0035] 160 - protective cover; 161 - second through hole;

[0036] 170-first transmission end; 171-first support portion; 172-second support portion;

[0037] 180- second transmission end;

[0038] 190-handle;

[0039] X-first direction; Y-second direction.

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0044] Figure 1 It is a structural schematic diagram of an embodiment of the processing box of the utility model; Figure 2 It is a structural schematic diagram of another angle of an embodiment of the processing box of the utility model; Figure 3 A schematic side view of an embodiment of a processing box of the utility model; Figure 4 A schematic diagram of the structure of a first through hole and a second through hole of an embodiment of a processing box of the utility model; Figure 5 A cross-sectional schematic diagram of an embodiment of a processing box of the utility model; Figure 6 A schematic diagram of the structure of a protective cover of an embodiment of a processing box of the utility model; Figure 7 For this utility model Figure 4 A side view schematic diagram of Figure 8 It is a structural schematic diagram of a transmission assembly of an embodiment of a processing box of the utility model; Fig. 9 The schematic diagram of the structure of the first transmission end of an embodiment of the process box of the present utility model is shown in FIG. In the embodiment of the present utility model, the process box 100 includes: a photosensitive component 110 , a developing component 120 , a first end cover 130 , a transmission component 150 and a protective cover 160 .

[0045] The photosensitive component 110 includes a photosensitive drum 111 , the developing component 120 includes a developing roller 121 , the first end cover 130 includes at least one first through hole 131 , and the transmission component 150 is disposed at the ends of the photosensitive component 110 and the developing component 120 .

[0046] The transmission assembly 150 has a first transmission end 170 extending outward from the first end cover 130, and the transmission assembly 150 is configured to transmit an external driving force to the photosensitive drum 111 and the developing roller 121. The protective cover 160 is disposed between the first end cover 130 and the developing roller 121, and the protective cover 160 has a second through hole 161. The first transmission end 170 is penetrated through the first through hole 131 and the second through hole 161, and there is at least a partial gap between the inner wall surface of the first through hole 131, the inner wall surface of the second through hole 161, and the outer peripheral surface of the first transmission end 170.

[0047] In the embodiment of the utility model, the transmission assembly 150 is connected to the photosensitive drum 111 and the developing roller 121 respectively, and the external driving device is connected to the transmission assembly 150. The driving device can drive the photosensitive drum 111 and the developing roller 121 to rotate respectively through the transmission assembly 150. During the rotation of the photosensitive drum 111 and the developing roller 121, the first transmission end 170 of the transmission assembly 150 will rotate together, and the outer peripheral surface of the first transmission end 170 will rub against the inner wall surface of the first through hole 131 and the second through hole 161. Since there is at least a partial gap between the first through hole 131, the second through hole 161 and the first transmission end 170 in the embodiment of the utility model, the first through hole 131 and the second through hole 161 can fix the first transmission end 170 while reducing the contact area with the first transmission end 170, thereby reducing the friction force generated by the rotation between the inner wall surfaces of the first through hole 131 and the second through hole 161 and the outer peripheral surface of the first transmission end 170, so that the transmission assembly 150 can rotate smoothly, thereby ensuring the smooth rotation of the developing roller 121 and / or the photosensitive drum 111, thereby ensuring the printing quality.

[0048] The protective cover 160 is disposed between the first end cover 130 and the developing roller 121, and the first transmission end 170 passes through the second through hole 161 of the protective cover 160 and the first through hole 131 of the first end cover 130. Part of the inner wall surface of the first through hole 131 and part of the inner wall surface of the second through hole 161 abut against the outer peripheral surface of the first transmission end 170, so that the first through hole 131 and the second through hole 161 cooperate to support the first transmission end 170 together.

[0049] Furthermore, one of the first end cover 130 and the second end cover 140 may also have two, three or more first through holes 131 and second through holes 161, and there may also be partial gaps between other transmission rollers or printing rollers of the processing box 100 and the first through holes 131 or the second through holes 161, so that the other transmission rollers or printing rollers can be connected to the external transmission through the remaining first through holes 131 or the second through holes 161 while reducing the friction generated with the first through holes 131 or the second through holes 161 during rotation.

[0050] The developing roller 121 and the photosensitive drum 111 of the processing box 100 of the utility model embodiment are connected to the external transmission through the transmission assembly 150. Since there is a partial gap between the outer peripheral surface of the first transmission end 170 and the inner wall surfaces of the first through hole 131 and the second through hole 161, when the transmission end rotates, the outer peripheral surface of the transmission end and the inner wall surfaces of the first through hole 131 and the second through hole 161 are not completely in contact, thereby reducing the contact area between the transmission end and the first through hole 131 and the second through hole 161, so as to reduce the friction between the transmission end and the first through hole 131 and the second through hole 161 during rotation, thereby ensuring that the developing roller 121 and the photosensitive drum 111 can rotate smoothly.

[0051] In some embodiments, the inner wall of the first through hole 131 abuts against the outer circumference of the first transmission end 170 in the first direction X, and the inner wall of the second through hole 161 abuts against the outer circumference of the first transmission end 170 in the second direction Y intersecting with the first direction X.

[0052] In this embodiment, the inner wall surfaces of the first through hole 131 on both sides along the first direction X abut against the outer peripheral surface of the first transmission end 170, and the inner wall surfaces of the second through hole 161 on both sides along the second direction Y abut against the outer peripheral surface of the first transmission end 170. In this embodiment, the first direction X intersects with the second direction Y, so the first through hole 131 cooperates with the second through hole 161 to support and fix the first transmission end 170, so that the first transmission end 170 can reduce the friction between the first through hole 131 and the second through hole 161 while being fixed by the protective cover 160 and the first end cover 130.

[0053] Preferably, the first direction X and the second direction Y are perpendicular to each other.

[0054] In some embodiments, the processing box 100 also includes a second end cover 140, the photosensitive drum 111 has a second transmission end 180, the first end cover 130 also includes at least one third through hole 132, the photosensitive component 110 and the developing component 120 are arranged between the first end cover 130 and the second end cover 140, and the two ends of the photosensitive drum 111 and the developing roller 121 are rotatably connected to the first end cover 130 and the second end cover 140 respectively; the second transmission end 180 is passed through the third through hole 132 and is connected to the transmission assembly 150, and there is a partial gap between the inner wall surface of the third through hole 132 and the outer peripheral surface of the second transmission end 180.

[0055] In this embodiment, the two ends of the photosensitive drum 111 and the developing roller 121 are rotatably connected to the first end cover 130 and the second end cover 140 respectively, and the second transmission end 180 of the photosensitive drum 111 is passed through the third through hole 132. While the second transmission end 180 is connected to the transmission assembly 150, the friction with the inner wall surface of the third through hole 132 is reduced through the gap between the third through hole 132.

[0056] In some embodiments, the first through hole 131 , the second through hole 161 , and the third through hole 132 are polygonal or arc-shaped closed shapes.

[0057] In this embodiment, by setting the shape of the openings of the first through hole 131, the second through hole 161 and the third through hole 132 to a polygonal or arc-shaped closed shape, the transmission shaft passing through the first through hole 131, the second through hole 161 and the third through hole 132 can form a gap with the inner wall surfaces of the first through hole 131, the second through hole 161 and the third through hole 132 while rotating, so as to reduce the friction between the outer peripheral surfaces of the transmission shaft of the photosensitive drum 111 and the transmission shaft of the transmission assembly 150 and the inner wall surfaces of the first through hole 131, the second through hole 161 and the third through hole 132.

[0058] Alternatively, the first through hole 131, the second through hole 161 and the third through hole 132 may also be provided with a plurality of recessed grooves on the inner wall surface, and the extension direction of the grooves is the same as the extension direction of the first through hole 131, the second through hole 161 or the third through hole 132, so that a gap is formed between the transmission shaft and the inner wall surface of the first through hole 131, the second through hole 161 or the third through hole 132, thereby achieving the effect of reducing friction.

[0059] In some embodiments, the transmission assembly 150 includes a first transmission assembly 151 and a second transmission member 152, the first transmission assembly 151 includes a first transmission member 1514, the first transmission member 1514 is connected to the developing roller 121, and the second transmission member 152 is connected to the second transmission end 180; the driving end of the external driving assembly can be respectively connected to the first transmission member 1514 and the second transmission member 152 and drive the developing roller 121 and the photosensitive drum 111 to rotate.

[0060] In this embodiment, the first transmission member 1514 is disposed at the transmission end 170 of the photosensitive drum 111, and the second transmission member 152 is disposed at the transmission end 170 of the transmission assembly 150. The external driving assembly is connected to the first transmission member 1514, and the first transmission assembly 151 is connected to the developing roller 121, so as to realize the transmission connection between the first transmission member 1514 and the developing roller 121. The driving assembly drives the developing roller 121 to rotate by driving the first transmission member 1514, and the driving assembly drives the photosensitive drum 111 to rotate by driving the second transmission member 152. The external driving assembly can be respectively connected to the developing roller 121 and the photosensitive drum 111 through the first transmission member 1514 and the second transmission member 152, so as to realize the separate driving of the developing roller 121 and the photosensitive drum 111.

[0061] In some embodiments, the first transmission end 170 passes through the first through hole 131 and the second through hole 161 and is in transmission connection with the first transmission member 1514 . The first transmission member 1514 and the second transmission member 152 are arranged on the side of the first end cover 130 away from the protective cover 160 .

[0062] In this embodiment, when the first transmission end 170 is inserted into the second through hole 161 of the protective cover 160, the outer circumferential surface of the first transmission end 170 abuts against the inner wall surface of the second through hole 161, so that the second through hole 161 supports the first transmission end 170. When the first transmission end 170 is inserted into the first through hole 131 of the first end cover 130, the outer circumferential surface of the first transmission end 170 can abut against the inner wall surface of the first through hole 131, so that the first through hole 131 supports the transmission end 170 of the transmission assembly 150, and the first through hole 131 and the second through hole 161 cooperate to fix the first transmission end 170.

[0063] By arranging the first transmission member 1514 and the second transmission member 152 on the side of the first end cover 130 away from the protective cover 160, the external driving component can drive the developing roller 121 and the photosensitive drum 111 located on the other side of the first end cover 130 through the first transmission member 1514 and the second transmission member 152.

[0064] In some embodiments, the first transmission assembly 151 also includes a first gear 1511, a second gear 1512, a third gear 1513 and an ink-absorbing roller 1515, and the protective cover 160 is covered on the first gear 1511, the second gear 1512, and the third gear 1513. The transmission shaft of the first gear 1511 is passed through the first through hole 131 and the second through hole 161 and is connected to the first transmission member 1514 to form a first transmission end 170.

[0065] The outer circumference of the ink absorbing roller 1515 abuts against the outer circumference of the developing roller 121; the second gear 1512 and the third gear 1513 are meshed and connected with the first gear 1511, the second gear 1512 is coaxially connected to the developing roller 121, and the third gear 1513 is coaxially connected to the ink absorbing roller 1515.

[0066] In this embodiment, the first gear 1511 has a transmission shaft extending toward the side of the protective cover 160, and the transmission shaft passes through the second through hole 161 and the first through hole 131 to form the first transmission end 170 of the transmission assembly 150, and the second transmission member 152 is connected to the transmission shaft. The second gear 1512 and the third gear 1513 are respectively meshed and connected with the first gear 1511, and when the first gear 1511 rotates, the second gear 1512 and the third gear 1513 can be driven to rotate, so that the developing roller 121 and the ink absorbing roller 1515 rotate.

[0067] Furthermore, the outer peripheral surface of the first gear 1511 has a first part and a second part with different diameters, the first part and the second part are coaxially arranged, the second gear 1512 is meshedly connected to the outer peripheral surface of the first part, and the third gear 1513 is meshedly connected to the outer peripheral surface of the second part, so that when the first gear 1511 rotates, the second gear 1512 and the third gear 1513 have different rotational speeds, thereby realizing the control of the rotational speeds of the developing roller 121 and the ink absorption roller 1515.

[0068] In some embodiments, the developing assembly 120 also includes a developing frame 122, a first end cover 130 and a second end cover 140 are arranged at both ends of the developing frame 122, the developing frame 122 has a storage cavity for storing the developer, the developing roller 121 and the ink suction roller 1515 are arranged in the developing frame 122, and the ink suction roller 1515 is configured to supply the developer to the developing roller 121.

[0069] In this embodiment, when the first gear 1511 rotates, it drives the second gear 1512 and the third gear 1513 to rotate. The rotating third gear 1513 drives the ink suction roller 1515 to take out the developer and transfer it to the developing roller 121. The rotating second gear 1512 drives the developing roller 121 to rotate in coordination with the photosensitive drum 111.

[0070] In some embodiments, the first transmission end 170 has a first support portion 171 and a second support portion 172, the first support portion 171 is located on the outward side of the second support portion 172 and the diameter of the first support portion 171 is smaller than the diameter of the second support portion 172, the outer peripheral surface of the first support portion 171 abuts against the inner wall surface of the first through hole 131, and the outer peripheral surface of the second support portion 172 abuts against the inner wall surface of the second through hole 161.

[0071] In this embodiment, since the protective cover 160 is located between the transmission assembly 150 and the first end cover 130, the outer peripheral surface of the second support portion 172 abuts against the inner wall surface of the second through hole 161, and the outer peripheral surface of the first support portion 171 abuts against the inner wall surface of the first through hole 131. The diameter of the first support portion 171 is smaller than the diameter of the second support portion 172, and therefore the diameter of the first through hole 131 is also smaller than the diameter of the second through hole 161.

[0072] Therefore, when observing from the outside along the axial direction of the first transmission end 170 , the first end cover 130 will cover the second through hole 161 of the protective cover 160 due to the smaller diameter of the first through hole 131 .

[0073] In some embodiments, the photosensitive assembly 110 further includes a photosensitive frame 112 , a first end cover 130 and a second end cover 140 are disposed on both sides of the photosensitive frame 112 , and the photosensitive drum 111 is disposed in the photosensitive frame 112 .

[0074] In this embodiment, the photosensitive frame 112 and the developing frame 122 form a shell of the processing box 100, the photosensitive drum 111, the developing roller 121 and the ink suction roller 1515 are arranged in the shell formed by the photosensitive frame 112 and the developing frame 122, and the first end cover 130 and the second end cover 140 are arranged on both sides of the shell formed by the photosensitive frame 112 and the developing frame 122.

[0075] In some embodiments, the first end cap 130 and the second end cap 140 are connected to two ends of the photosensitive frame 112 or the first end cap 130 and the second end cap 140 are connected to the photosensitive frame 112 in an integral manner.

[0076] In this embodiment, the first end cover 130 and the second end cover 140 can be connected to the two ends of the photosensitive frame 112, or the first end cover 130, the second end cover 140 and the photosensitive frame 112 are an integrated structure, so that the first end cover 130, the second end cover 140 and the photosensitive frame 112 form at least a portion of the shell of the processing box 100.

[0077] Furthermore, the photosensitive frame 112 can be detachably connected or integrally connected to the developing frame 122, so that the photosensitive frame 112, the developing frame 122, the first end cover 130 and the second end cover 140 form a shell of the processing box 100 to protect the photosensitive drum 111, the developing roller 121, the ink suction roller 1515, the transmission assembly 150 and the developer inside the shell.

[0078] In some embodiments, the photosensitive frame 112 is further provided with a handle 190 , which is disposed on the top of the photosensitive frame 112 , so that a user can conveniently take or install the processing box 100 .

[0079] Furthermore, the first end cover 130 or the second end cover 140 is provided with an observation window 133, and the observation window 133 is connected to the interior of the photosensitive frame 112 or the developing frame 122, so that the user can observe the internal structure of the processing box 100 through the observation window 133. When installing the processing box 100, it is possible to clearly observe whether the various components of the processing box 100 are installed in place.

[0080] The utility model further provides an imaging device, which includes the process box 100 of any of the above embodiments, a transfer roller, a driving component and a housing.

[0081] The outer peripheral surface of the transfer roller abuts against the outer peripheral surface of the photosensitive drum 111, one end of the transfer roller is connected to the transmission assembly 150, and the driving assembly is connected to the transmission assembly 150, so that the driving assembly can drive the developing roller 121, the photosensitive drum 111, and the transfer roller to rotate, and the processing box 100, the transfer roller and the driving assembly are arranged in the shell.

[0082] In this embodiment, the driving assembly is connected to the transmission assembly 150 , and the driving assembly drives the developing roller 121 , the photosensitive drum 111 and the transfer roller to rotate respectively through the transmission assembly 150 , so that the imaging device can perform printing.

[0083] The first transmission end 170 is penetrated through the first through hole 131 of the first end cover 130 and the second through hole 161 of the protective cover, and the second transmission end 180 is penetrated through the third through hole 132 of the first end cover 130, that is, the first end cover 130 and the protective cover 160 limit the first transmission end 170 in the first through hole 131 and the second through hole 161, and the first end cover 160 limits the second transmission end 180 in the third through hole 132, and the first transmission end 170 of the transmission assembly 150 and the second transmission end 180 of the photosensitive drum 111 can rotate relative to the first end cover 130.

[0084] Since there is a gap between the first transmission end 170 of the transmission assembly 150 and the first through hole 131 and the second through hole 161, and there is a gap between the second transmission end 180 of the photosensitive drum 111 and the third through hole 132, the contact area between the first transmission end 170 and the inner wall surface of the first through hole 131 and the second through hole 161 during rotation and the contact area between the second transmission end 180 and the third through hole 132 during rotation are reduced, thereby reducing the friction force generated by the rotation, ensuring that the transmission assembly 150 and the developing roller 121 and the photosensitive drum 111 can rotate smoothly, and preventing the rotation of the developing roller 121 and the photosensitive drum 111 from being blocked due to excessive friction, thereby affecting the printing quality.

[0085] The imaging device of the embodiment of the utility model includes a processing box 100, and the developing roller 121 and the photosensitive drum 111 of the processing box 100 are connected to the external transmission through the transmission assembly 150. Since there is a partial gap between the outer peripheral surface of the first transmission end 170 and the inner wall surfaces of the first through hole 131 and the second through hole 161, when the transmission end rotates, the outer peripheral surface of the transmission end and the inner wall surfaces of the first through hole 131 and the second through hole 161 are not completely in contact, thereby reducing the contact area between the transmission end and the first through hole 131 and the second through hole 161, so as to reduce the friction between the transmission end and the first through hole 131 and the second through hole 161 during rotation, thereby ensuring that the developing roller 121 and the photosensitive drum 111 can rotate smoothly, so that the imaging device can solve the problem that the developing roller 121 and the photosensitive drum 111 cannot rotate smoothly due to excessive friction between the transmission end and the first through hole 131 and the second through hole 161 during rotation.

[0086] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A processing box, characterized in that: The processing box comprises: A photosensitive component, wherein the photosensitive component comprises a photosensitive drum; A developing assembly, the developing assembly comprising a developing roller; a first end cover, the first end cover comprising at least one first through hole; A transmission assembly, the transmission assembly is arranged at the ends of the photosensitive assembly and the developing assembly, the transmission assembly has a first transmission end extending outside the first end cover, and the transmission assembly is arranged to transmit an external driving force to the photosensitive drum and the developing roller; A protective cover is arranged between the first end cover and the developing roller, the protective cover has a second through hole, the first transmission end is passed through the first through hole and the second through hole, and there is a partial gap between the inner wall surface of the first through hole, the inner wall surface of the second through hole and the outer peripheral surface of the first transmission end.

2. The process cartridge according to claim 1, wherein: The inner wall surface of the first through hole abuts against the outer circumference surface of the first transmission end in a first direction, and the inner wall surface of the second through hole abuts against the outer circumference surface of the first transmission end in a second direction intersecting with the first direction.

3. The process cartridge according to claim 1, wherein: The processing box further includes a second end cover, the photosensitive drum has a second transmission end, the first end cover further includes at least one third through hole, the photosensitive component and the developing component are arranged between the first end cover and the second end cover, and the two ends of the photosensitive drum and the developing roller are rotatably connected to the first end cover and the second end cover respectively; The second transmission end is inserted into the third through hole and connected to the transmission assembly. A partial gap is provided between the inner wall surface of the third through hole and the outer peripheral surface of the second transmission end.

4. The process cartridge according to claim 3, wherein: The first through hole, the second through hole and the third through hole are in a polygonal or arc-shaped closed shape.

5. The process cartridge according to claim 3, wherein: The transmission assembly comprises a first transmission assembly and a second transmission member, the first transmission assembly comprises a first transmission member, the first transmission member is transmission-connected to the developing roller, and the second transmission member is connected to the second transmission end; The driving end of the external driving component can be connected to the first transmission member and the second transmission member respectively to drive the developing roller and the photosensitive drum to rotate.

6. The process cartridge according to claim 5, wherein: The first transmission end is inserted through the first through hole and the second through hole and is in transmission connection with the first transmission member. The first transmission member and the second transmission member are arranged on a side of the first end cover away from the protective cover.

7. The process cartridge according to claim 5, wherein: The first transmission assembly further includes a first gear, a second gear, a third gear and an ink absorbing roller, the protective cover is arranged on the first gear, the second gear and the third gear, the transmission shaft of the first gear passes through the first through hole and the second through hole and is connected to the first transmission member to form the first transmission end, and the outer peripheral surface of the ink absorbing roller abuts against the outer peripheral surface of the developing roller; The second gear and the third gear are meshed and connected with the first gear, the second gear is coaxially connected with the developing roller, and the third gear is coaxially connected with the ink absorbing roller.

8. The process cartridge according to claim 7, wherein: The developing assembly also includes a developing frame, the first end cover and the second end cover are arranged at both ends of the developing frame, the developing frame has a storage cavity for storing the developer, the developing roller and the ink suction roller are arranged in the developing frame, and the ink suction roller is configured to supply the developer to the developing roller.

9. A process cartridge according to any one of claims 1 to 8, characterized in that: The first transmission end has a first support portion and a second support portion, the first support portion is located on the outward side of the second support portion and the diameter of the first support portion is smaller than the diameter of the second support portion, the outer peripheral surface of the first support portion abuts against the inner wall surface of the first through hole, and the outer peripheral surface of the second support portion abuts against the inner wall surface of the second through hole.

10. The process cartridge according to claim 3, wherein: The photosensitive component also includes a photosensitive frame, the first end cover and the second end cover are arranged on both sides of the photosensitive frame, and the photosensitive drum is arranged in the photosensitive frame.

11. An imaging device, characterized in that: The imaging device comprises: A process cartridge according to any one of claims 1 to 10; A transfer roller, the outer peripheral surface of which abuts against the outer peripheral surface of the photosensitive drum, and one end of which is connected to the transmission assembly; A driving assembly, wherein the driving assembly is connected to the transmission assembly so that the driving assembly can drive the developing roller, the photosensitive drum, and the transfer roller to rotate; and The processing box, the transfer roller and the driving assembly are arranged in the shell.

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