CN221884118U - Powder box and imaging equipment - Google Patents

Abstract

The utility model provides a powder box and imaging equipment, wherein the powder box comprises a box body, a rotating piece, a rotating force transmission assembly and a detection assembly; the rotating piece is rotatably supported on the box body, the rotating force transmission assembly is arranged at the axial end of the rotating piece, and the detection assembly and the rotating force transmission assembly are arranged on the same side of the box body; the box body is provided with a mounting groove, and the detection assembly is arranged in the mounting groove; the detection assembly comprises a detection piece and an elastic resetting piece, the detection piece comprises a main body part, a trigger part, a guide part and a limiting part, the trigger part and the limiting part are respectively arranged at two ends of the main body part, the guide part is arranged between the trigger part and the limiting part, the trigger part is stressed to drive the limiting part to move from a retracted position to an extended position, a sliding rail is arranged on the box body, the guide part is in sliding fit with the sliding rail, and the elastic resetting piece drives the limiting part to reset. The powder box can improve the smoothness of the installation and avoid damage of detection pieces.

Description

Toner cartridges and imaging devices

Technical Field

The utility model relates to the field of electronic photographic imaging, in particular to a powder box and an imaging device.

Background Art

An electrophotographic imaging device is a device that uses the principle of electrophotography to form an image on a printing medium such as paper, including a printer and a toner box that is detachably installed in the printer.

Referring to FIG. 1 , a conventional powder box includes a developing unit 101 and an imaging unit 102. The developing unit 101 includes a developing frame 111, a stirring frame, a developing roller 113, and a transmission assembly. The stirring frame and the developing roller 113 can be rotatably mounted on the developing frame 111. The stirring frame is used to transport the toner in the powder bin toward the developing roller 113. The developing roller 113 is used to transport the toner to the surface of the photosensitive drum 122 for latent imaging. The transmission assembly is used to drive the various moving parts in the developing unit 101 to rotate. A chip holder 103 is also provided on the outer wall of the developing frame 111, and the chip is detachably mounted on the chip holder 103.

The imaging unit 102 includes a drum frame 121, a photosensitive drum 122, a driving force receiving component, etc. The photosensitive drum 122 is rotatably mounted on the drum frame 121, and the driving force receiving component is arranged at the end of the shaft of the photosensitive drum 122 to connect the rotational force of the imaging device to the photosensitive drum 122. The developing frame 111 is hinged to the drum frame 121. When the photosensitive drum 122 is cleaned, the developing frame 111 can rotate a certain angle relative to the drum frame 121, thereby driving the developing roller 113 to separate from the photosensitive drum 122.

Among them, the chip holder 103 is integrally formed with the end cover 112 of the movable developing frame 111. When the powder box is correctly installed in the mounting cavity of the imaging device, the lower side surface of the chip holder 103 contacts the lower surface of the mounting cavity. Since the lower surface of the mounting cavity of the imaging device is easily contaminated by carbon powder, the chip holder 103 of the developing frame 111 will continuously scrape up the carbon powder in the mounting cavity and contaminate the chip 107 during the movement with the developing frame 111. This makes the electrical contact surface 108 of the chip 107 easily contaminated, thereby causing poor electrical contact between the chip 107 and the electrical contact 301 of the imaging device.

In addition, the chip holder 103 is provided with a first rib plate 105 and a second rib plate 106 in a second direction perpendicular to the developing roller 113. When the powder box is installed in the printer, the first rib plate 105 and the second rib plate 106 guide and position the imaging device electrical contact 301 in the imaging device installation cavity. The first rib plate 105 and the second rib plate 106 added on both sides of the chip holder 103 also increase the structural complexity of the chip holder 103, which is not conducive to low-cost production.

In addition, as shown in FIG2 , on the existing powder box, the electric contact pin 302 on the electric contact 301 of the imaging device is perpendicular to the electric contact surface 108 of the chip 107, and the straight line L1 passing through the contact point between the chip 107 and the electric contact pin 302 on the electric contact 301 of the imaging device and perpendicular to the electric contact surface 108 intersects with the line P1 passing through the axis of the photosensitive drum 122 and the axis of the positioning column 123 along the axial projection of the photosensitive drum 122. Since the movable amount of the electric contact 301 of the imaging device is very small and the direction of the electric contact pin 302 is perpendicular to the electric contact surface 108, during the installation of the powder box or when the imaging device vibrates, the powder box will squeeze the electric contact 301, which is easy to force the electric contact 301 to move beyond the original moving length, resulting in damage to the electric contact 301 of the imaging device.

In addition, the positioning column 123 of the existing powder box is set on the drum frame 121. Since vibration occurs during the printing process of the imaging device, the vibration will be transmitted to the drum frame 121 through the positioning column 123, and then transmitted to the photosensitive drum 122. The vibration of the photosensitive drum 122 will affect the printing quality of the powder box.

In addition, referring to FIG. 3 and FIG. 4, there is another powder box, which, in addition to having the above structure and the above problems, is also provided with a detection member 13, and the detection member 13 includes a rotating shaft 131, a guide portion 132, and a limit portion 133. The detection member 13 is connected to a torsion spring so that the detection member 13 can rotate around the rotating shaft 131. When the detection member 13 is installed in the mounting cavity of the imaging device, the guide portion 132 and the track 14 along the imaging device detection member 13 slide, thereby guiding the limit portion 133 of the detection member 13 to be inserted into the positioning groove 15 of the imaging device. A sensor (not shown) is provided in the positioning groove 15 of the imaging device. When the detection member 13 is inserted into the positioning groove 15 of the imaging device, the imaging device recognizes that the powder box is correctly installed. At the same time, after the limit portion 133 of the detection member 13 is inserted into the positioning groove 15 of the imaging device, it cooperates with the positioning groove 15, so that the powder box is straightened, so that the rotational force transmission component of the powder box is coupled with the transmission head 16 of the imaging device.

The powder box detection member 13 is exposed and arranged near the drive head 17. When a user who is unfamiliar with the powder box installation method installs the powder box, during the powder box installation process, the detection member 13 is installed in an integrated manner with the powder box through elastic swinging. Since the detection member 13 is exposed, the end of the detection member 13 will be stuck with the internal structure of the imaging device after the powder box is installed in the imaging device, which affects the smoothness of the installation. When installing and removing, the detection member 13 is driven by the spring to swing to achieve the separation of the end of the detection member 13 from the imaging device. In addition, the powder box also needs to engage and disengage with the transmission head 16 during the installation or removal process. Therefore, the integrated linkage structure increases the difficulty of installing the powder box. In addition, the spring that drives the detection member 13 to swing is prone to failure, which leads to the situation that the powder box is not installed in place, which will cause the detection member 13 to collide with the transmission head 16 of the imaging device. In addition, the position of the detection member 13 in the powder box is close to the edge of the powder box, and the detection member 13 is a cantilever structure, which is exposed to the powder box and is easily damaged by collision during transportation.

Utility Model Content

The first object of the utility model is to provide a powder box which can improve the smoothness of installation and avoid damage to the detection part.

The second object of the utility model is to provide an imaging device having the above powder box.

To achieve the above-mentioned first purpose, the utility model provides a powder box, including a box body, a rotating part, a rotational force transmission assembly and a detection assembly; the rotating part is rotatably supported on the box body, the rotational force transmission assembly is arranged at the axial end of the rotating part, and the detection assembly and the rotational force transmission assembly are arranged on the same side of the box body; a mounting groove is provided on the box body, and the detection assembly is arranged in the mounting groove; the detection assembly includes a detection part and an elastic reset part, the detection part includes a main body, a trigger part, a guide part and a limit part, the trigger part and the limit part are respectively arranged at two ends of the main body, the guide part is arranged between the trigger part and the limit part, the trigger part is subjected to force to drive the limit part to move from the retracted position to the extended position, a slide rail is provided on the box body, the guide part slides with the slide rail, and the elastic reset part drives the limit part to reset.

It can be seen that the utility model sets the detection member into a structure that slides with the box body. When the door cover is closed after the powder box is installed, the door cover applies a force to the trigger part, driving the detection member to move along the slide rail, so that the limit part moves from the retracted position to the extended position, and cooperates with the positioning groove in the imaging device, and triggers the detection switch at the same time. In addition, when the powder box is taken out of the imaging device, the door cover of the imaging device is opened, and the force applied by the door cover to the trigger part disappears. The elastic reset member drives the detection member to reset under the action of its own elastic restoring force, and the limit part moves to the retracted position. At this time, the limit part withdraws from the positioning groove of the imaging device. By setting the detection member into a structure that slides with the box body, the detection member is always in the retracted position during transportation, avoiding damage to the detection member caused by bumps. At the same time, since the detection member is in the retracted position during the installation of the powder box to the imaging device, it will not collide with the structure inside the imaging device, so the installation process is smoother.

A preferred solution is that the middle portion of the slide rail is higher than both ends of the slide rail, and the retracted position is higher than the extended position.

It can be seen that when the limiting part is in the retracted position, it is higher than the position of the detection switch, so it can avoid the limiting part and the transmission head from colliding when the powder box is installed in the imaging device.

A further solution is that the slide rail is arc-shaped and bends upward.

This shows that the smoothness of the movement of the detection part can be guaranteed.

A further solution is that the guide portion includes a first guide column and a second guide column, the first guide column and the second guide column are arranged at intervals and both are slidably matched with the slide rail.

It can be seen that the two guide posts can better limit the moving path of the detection member to ensure smooth movement of the limiting part when the door cover is closed.

A further solution is that the main body includes a first main body section, a deformation section and a second main body section which are connected in sequence; the trigger section is located at an end of the first main body section away from the deformation section, the limit section is located at an end of the second main body section away from the deformation section, the first guide column is arranged on the first main body section and close to the deformation section, and the second guide column is arranged on the second main body section and close to the deformation section.

It can be seen that since the slide rail extends in an arc shape, the movement paths of the two guide posts are different, and the setting of the deformation part facilitates the two guide posts to move along the arc-shaped slide rail, thereby preventing the guide posts from getting stuck with the slide rail.

A further solution is that the deformation portion is made of a flexible material.

A preferred solution is that the main body is also provided with an abutment portion, which is arranged close to the trigger portion and protrudes outward from the side wall of the main body, the first end of the elastic return member abuts the abutment portion, and the second end of the elastic return member abuts the side wall of the installation groove.

It can be seen that the provision of the abutment portion facilitates the installation and support of the elastic return member.

A preferred solution is that the mounting groove includes an elastic member mounting portion and a detection member mounting portion arranged along the length direction of the box body, the elastic reset member is mounted in the elastic member mounting portion, and the detection member is mounted in the detection member mounting portion.

It can be seen that the elastic reset member and the detection member are respectively arranged in two grooves to prevent interference between the two when they move or deform.

A further solution is that the number of the guide parts and the slide rails are both two, the two slide rails are respectively arranged on the two side walls of the detection component installation part, the two guide parts are respectively arranged on both sides of the main body, and one guide part is slidably matched with one slide rail.

This shows that the stability of the sliding connection between the detection member and the slide rail can be improved.

To achieve the above-mentioned second purpose, the utility model provides an imaging device, wherein the imaging device is provided with an installation cavity and a door cover, the door cover is located at the installation opening of the installation cavity, a positioning groove is provided in the installation cavity, a detection switch is provided in the positioning groove, and the above-mentioned powder box is detachably installed in the installation cavity. After the door cover is closed, the door cover abuts against the trigger part and pushes the detection part to move, the limit part moves from the retracted position to the extended position and enters the positioning groove, and the limit part triggers the detection switch.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of a chip and a chip holder in an existing powder box.

FIG. 2 is a right side view of a conventional powder box.

FIG. 3 is a structural diagram of the cooperation between the driving end of the existing powder box and the positioning groove and transmission head of the imaging device.

FIG. 4 is a perspective view of a conventional powder box.

FIG. 5 is a structural diagram of a transmission head and a powder box according to a first embodiment of the present invention.

FIG. 6 is a partial structural diagram of the first embodiment of the powder box of the present utility model.

FIG. 7 is a structural exploded view of the first embodiment of the powder box of the utility model from a first viewing angle.

FIG. 8 is a structural exploded view of the first embodiment of the powder box of the utility model from a second viewing angle.

9 is a structural diagram of the cooperation between the electric contact limiting groove and the chip seat of the first embodiment of the powder box of the utility model.

FIG. 10 is a structural diagram of a chip holder of a first embodiment of a powder box of the present invention from a first viewing angle.

FIG. 11 is a structural diagram of the chip holder of the first embodiment of the powder box of the present invention from a second viewing angle.

FIG. 12 is a schematic diagram of the matching structure between the chip holder and the bottom wall of the mounting cavity of the first embodiment of the powder box of the present utility model.

FIG. 13 is a right side view of the second embodiment of the powder box of the present utility model.

FIG. 14 is a partial enlarged view of the second embodiment of the powder box of the present utility model.

FIG. 15 is an exploded view of the chip and the chip holder in the second embodiment of the powder box of the present invention.

FIG. 16 is a structural diagram of a fourth embodiment of a powder box of the present utility model.

FIG. 17 is a structural exploded view of a fourth embodiment of a powder box of the present utility model.

FIG. 18 is a structural diagram of a sixth embodiment of a powder box of the present utility model from a first viewing angle.

FIG. 19 is a structural exploded view of the sixth embodiment of the powder box of the present utility model from a first viewing angle.

FIG. 20 is a structural diagram of the sixth embodiment of the powder box of the present utility model from a second viewing angle.

FIG. 21 is a structural exploded view of the sixth embodiment of the powder box of the present utility model from a second viewing angle.

FIG. 22 is a structural diagram of the driving end of the seventh embodiment of the powder box of the present utility model.

FIG. 23 is a structural exploded view of the box body and the detection assembly of the seventh embodiment of the powder box of the present invention.

24 is a structural diagram of the seventh embodiment of the powder box of the utility model cooperating with the positioning groove and the transmission head of the imaging device.

The present invention will be further described below with reference to the accompanying drawings and embodiments.

DETAILED DESCRIPTION

Powder box first embodiment:

Referring to Figures 5 to 8, the powder box can be detachably installed in the imaging device. The electronic photographic imaging device includes a main body. A mounting cavity is provided in the main body. A transmission head 10 is provided on the side wall of the mounting cavity. The transmission head 10 includes a gear portion 11 and a coupling recess. The gear portion 11 is located on the peripheral wall of the transmission head 10, and the coupling recess is located at the axial end of the transmission head 10.

The powder box includes a developing unit 2 and a drum unit 3. The developing unit 2 includes a developing frame 21, a developing roller 22 and a stirring frame (not shown). A force receiving portion (not shown) is provided at the bottom of one end of the developing frame 21. The drum unit 3 includes a drum frame 31, a photosensitive drum 4 rotatably supported on the drum frame 31, and a cleaning scraper 33 mounted on the drum frame 31. Both ends of the cleaning scraper 33 are supported on the drum frame 31, and the blade of the cleaning scraper 33 abuts against the photosensitive drum 4 to clean the residual powder on the photosensitive drum 4. The drum frame 31 and the developing frame 21 constitute the box body of the powder box. The developing roller 22, the stirring frame and the photosensitive drum 4 are all rotatably mounted on the box body as rotating parts and extend along the length direction of the box body.

The developing frame 21 includes a developing frame body 211 and two end covers 212. The two end covers 212 are respectively arranged at the two ends of the developing frame body 211. The two end covers 212 are both provided with a developing hinge 213. Both ends of the drum frame 31 are provided with an imaging hinge 311. The powder box also includes two positioning pins 12. One positioning pin 12 passes through an imaging hinge and a developing hinge 213 on the same side in sequence, thereby realizing the hinge connection between the developing frame 21 and the drum frame 31.

The top of the drum frame 31 away from the force receiving portion is provided with an elastic member such as a spring (not shown), and the two ends of the spring are respectively in contact with the developing frame 21 and the drum frame 31. A force-applying member (not shown) is provided in the imaging device. After the force-applying member applies a force to the force receiving portion, the developing frame 21 rotates relative to the drum frame 31, the developing roller 22 is separated from the photosensitive drum 4, and the developing roller 22 moves to the cleaning position relative to the photosensitive drum 4. At this time, the spring is in a compressed state; after the force-applying member moves in the opposite direction and cancels the force applied to the force receiving portion, the spring pushes the developing frame 21 to rotate under the action of its own elastic restoring force, so that the developing roller 22 abuts against the photosensitive drum 4, and the developing roller 22 moves to the imaging position relative to the photosensitive drum 4.

In addition, in the present embodiment, the developing frame 21 cooperates with the mounting cavity in a limiting manner, and only the developing frame 21 among the developing frame 21 and the drum frame 31 contacts the cavity wall of the mounting cavity, that is, the drum frame 31 does not contact the cavity wall of the mounting cavity, and the drum frame 31 and the cavity wall of the mounting cavity are separated by a gap.

A rotational force transmission component 41 is provided at one axial end of the photosensitive drum 4, a developing roller gear 5 is provided at one axial end of the developing roller 3, a stirring frame gear is provided at the axial end of the stirring frame, the box frame 20 includes a developing frame 21 and a drum frame 31, and the rotational force transmission component 41, the stirring frame gear and the developing roller gear 5 are located on the same side of the box frame 20 to form a gear system.

The box body frame 20 is provided with a recessed portion 201 near the rotational force transmission component 41, and the recessed portion 201 is recessed from the first end of the box body frame 20 toward the second end of the box body frame 20. The transmission head 10 can extend into the recessed portion 201 so that the coupling recess of the transmission head 10 engages with the rotational force transmission component 41 to receive the driving force.

The drum frame 31 includes a frame main body 312, a first side extension portion 313 and a second side extension portion 314. The frame main body 312 extends along the axial direction of the photosensitive drum 4. The first side extension portion 313 and the second side extension portion 314 are respectively arranged at both ends of the frame main body 312 and both extend downward from the frame main body 312. A chip seat 6 is arranged on the first side extension portion 313. The chip seat 6 is integrally formed with the drum frame 31. A chip 60 is installed in the chip seat 6. An electric contact limiting groove 100 is arranged near the bottom of the mounting cavity of the imaging device. An electric contact (not shown) is arranged in the electric contact limiting groove 100. An electric contact (not shown) is arranged on the electric contact. An electric contact pin is arranged on the electric contact. The chip 60 is in electrical contact with the electric contact pin of the electric contact.

Referring to Figures 9 to 12, the chip seat 6 includes a mounting groove 61, a seat top wall 62 and a seat bottom wall 63. The chip 60 is installed in the mounting groove 61. An opening 65 is formed between the seat top wall 62 and the seat bottom wall 63. The electrical contact surface 601 of the chip 60 is arranged toward the opening 65, and the electrical contact pin is arranged near the bottom of the mounting cavity.

The upper surface of the seat top wall 62 and the lower surface of the seat bottom wall 63 are both flat, that is, the seat top wall 62 and the seat bottom wall 63 of the chip seat are not provided with ribs or other guiding and positioning structures, which can simplify the structure of the chip seat 6 and reduce the mold design and manufacturing costs. The seat top wall 62 and the seat bottom wall 63 are provided with a guiding bevel 64 on one side of the electrical contact surface 601 close to the chip 60, and the guiding bevel 64 and the side wall 105 of the electrical contact limiting groove 100 slide together in the direction of the chip seat 6 being inserted into the electrical contact limiting groove 100.

In the axial direction of the photosensitive drum 4 , the guide slope 64 is located on the side of the chip holder 6 away from the frame main body 312 , and the guide slope 64 gradually moves away from the frame main body 312 from the side close to the opening 65 to the side away from the opening 65 .

The base wall 63 of the chip seat 6 is spaced from the bottom wall 104 of the mounting cavity and the minimum distance between the two is H. The chip seat 6 does not contact the bottom wall of the mounting cavity and a certain distance space is formed between them to further reduce the possibility of the electrical contact surface 601 of the chip 60 on the chip 60 being contaminated.

The first side extension portion 313 is further provided with a first support hole 315 and a second support hole 316. The first end of the photosensitive drum 4 is rotatably matched with the first support hole 315, and the chip holder 6 is located below the first support hole 315. The second support hole 316 is located between the first support hole 315 and the chip holder 6. The first end of the developing roller 22 is rotatably matched with the second support hole 316, and the second end of the developing roller 22 is rotatably connected to the developing frame 21.

The first side extension portion 313 is provided with a first positioning post 317, and the second side extension portion 314 is provided with a second positioning post 318. The first positioning post 317 and the second positioning post 318 are coaxially arranged and both extend along the axial direction of the photosensitive drum 4. The first positioning post 317 extends from the outer surface of the first side extension portion 313 in a direction away from the frame main body portion 312, and the second positioning post 318 extends from the outer surface of the second side extension portion 314 in a direction away from the frame main body portion 312. The first positioning post 317 and the second positioning post 318 are used to cooperate with the positioning groove (not shown) on the inner side wall of the installation cavity when the powder box is installed on the imaging device to achieve the positioning of the powder box.

It can be seen that by setting the chip holder for fixing the chip on the drum frame, when the photosensitive drum needs to be cleaned, the separation mechanism in the imaging device drives the developing unit to move, and during the separation of the developing roller and the photosensitive drum, since the imaging unit is fixed relative to the imaging device, the chip holder will not move. When the powder box is installed in the imaging device, the chip electrical contact surface is in contact with the electrical connector of the imaging device, and they are always in stable contact, thereby avoiding the chip holder being set on a movable developing unit. When the developing unit moves relative to the imaging unit, the chip holder and the chip electrical contact surface thereon move, thereby affecting the stability of the electrical contact between the chip electrical contact surface and the electrical contact of the imaging device.

Powder box second embodiment:

As an explanation of the second embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box are explained below.

Referring to FIGS. 13 to 15 , in this embodiment, the electric contact pin 2115 of the electric contact 2110 forms an acute angle θ with the electric contact surface 2601 of the chip 260, and the chip 260 is arranged to be tilted upward. The angle θ between the electric contact pin 2115 and the electric contact surface 2601 is greater than 0 degrees and less than 90 degrees. Preferably, the line P of the projection of the axis of the photosensitive drum 224 and the axis of the second positioning column 2318 on the second side extension 2314 along the axial direction of the photosensitive drum 224 is parallel to the normal line L of the electric contact surface 2601.

In this embodiment, the mounting groove 261 is arranged to be inclined, and the inclined direction is parallel to the electrical contact surface 2601 of the chip.

It can be seen that by tilting the chip, the line connecting the projection of the axis of the photosensitive drum and the axis of the second positioning column along the axial direction of the photosensitive drum is parallel to the normal of the electric contact surface. During the installation of the powder box or when the imaging device vibrates, even if the powder box squeezes the electric contact, since the electric contact pin and the electrical contact surface of the chip are in a non-vertical state, the electric contact pin will produce an inclined surface slip while contacting the electrical contact surface, thereby reducing the movement of the electric contact and avoiding damage to the electric contact of the imaging device.

Powder box third embodiment:

As an explanation of the third embodiment of the powder box of the present utility model, only the differences from the first embodiment of the powder box described above are explained below.

There is no force receiving part at the bottom of the developing frame, and no force-applying component is provided in the imaging device, but a spring is still provided between the developing frame and the drum frame, and the developing frame can rotate in a small range relative to the drum frame to ensure that the developing roller is always in contact with the photosensitive drum, the developing roller is not separated from the photosensitive drum, and no cleaning step is performed.

Powder box fourth embodiment:

As an explanation of the fourth embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box described above are explained below.

16 and 17 , in this embodiment, the first positioning column 4317 is disposed on the end cover 4212 of the developing frame 421 near the first side extension portion 4313 , and at least a portion of the first positioning column 4317 extends from the outer surface of the first side extension portion 4313 in a direction away from the frame main body portion 4312 .

Powder box fifth embodiment:

As an explanation of the fifth embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box are explained below.

In this embodiment, the first positioning column and the second positioning column are not provided on the developing frame and the drum frame, and the two end walls of the developing frame cooperate with the upper limit of the mounting cavity in the length direction of the developing frame, and the bottom wall of the developing frame contacts the mounting cavity, thereby realizing the positioning of the powder box relative to the mounting cavity of the imaging device.

Powder box sixth embodiment:

As an explanation of the sixth embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box described above are explained below.

18 to 21, in this embodiment, the developing frame 621 and the drum frame 631 are hinged by a first positioning column 6317 and a second positioning column 6318. The first positioning column 6317 and the second positioning column 6318 are respectively arranged at both ends of the developing frame 621, the developing frame 621 includes a frame body 6211, a positioning column support 6212 and a developing end cover 6213, the developing roller is mounted on the frame body 6211, the positioning column support 6212 and the developing end cover 6213 are respectively arranged at both ends of the frame body 6211, the second positioning column 6318 and the developing end cover 6213 are integrally formed, the positioning column support 6212 includes a fixing plate 6214 and a first positioning column 6317, and the first positioning column 6317 is arranged perpendicular to the fixing plate 6113.

A positioning hole 61 is provided on the first side extension portion 6313 of the drum frame 631, and the positioning hole 61 passes through the first side extension portion 6313 in the length direction of the drum frame 631. The first positioning column 6317 passes through the positioning hole 61 and extends in a direction away from the drum frame 631. The fixing plate 6214 is located between the end wall of the frame body 6211 and the first side extension portion 6313 to limit the fixing plate 6214.

A positioning opening 6315 is provided on the second side extension part 6314 of the drum frame 631. The positioning opening 6315 extends from the edge of the second side extension part 6314 along a length direction perpendicular to the drum frame 631. The positioning opening 6315 penetrates the second side extension part 6314 in the length direction of the drum frame 631. The positioning opening 6315 includes a guide opening 63151 and a positioning hole 63152. The guide opening 63151 is located on one side of the positioning hole 63152 in the radial direction and communicates with the positioning hole 63152. The insertion opening 6316 of the positioning opening 6315 is located at the edge of the second side extension part 6314 and at the end of the guide opening 63151 away from the positioning hole 63152. The width of the guide opening 63151 gradually decreases from the end close to the insertion opening 6316 to the end close to the positioning hole 63152, and the width of the end of the guide opening 63151 close to the positioning hole 63152 is smaller than the diameter of the positioning hole 63152.

The second positioning post 6318 is inserted into the positioning opening 6315 from the insertion port 6316 . The second positioning post 6318 passes through the positioning opening 6315 along the length direction of the drum frame 631 and extends in a direction away from the drum frame 631 .

In this embodiment, by directly using the first positioning column 6317 and the second positioning column 6318 used for positioning the powder box as hinges, and setting the positioning hole 61 and the positioning opening 6315 on the drum frame 631, during assembly, the first positioning column 6317 can be assembled with one end of the positioning hole 61 first, and then the second positioning column 6318 can be inserted into the positioning opening 6315 by interference pressing, which can simplify the assembly process and improve assembly efficiency. The positioning hole 61 can realize the limiting of the developing frame 621 relative to the drum frame 631 in the direction perpendicular to the length of the powder box, and the positioning opening 6315 can facilitate the clamping of the second positioning column 6318 with the positioning opening 6315.

In this embodiment, two springs (not shown) are respectively installed on the spring mounting column 62131 at the top end of the developing end cover 6213 and the spring mounting column 62111 at one end of the frame body 6211 of the developing frame 621 away from the developing end cover 6213 .

As can be seen from the above, the powder box is positioned relative to the imaging device by the limiting cooperation between the developing frame and the mounting cavity of the imaging device, and the drum frame is set to be non-contacting with the cavity wall of the mounting cavity, and at the same time, an elastic member is set between the developing frame and the drum frame. In this way, when the imaging device generates vibration during the printing process, the vibration is transmitted to the imaging unit through the developing unit. The elastic member set between the developing frame and the drum frame can play a role of buffering and shock absorption, which can greatly weaken the vibration transmitted to the imaging unit, so that the photosensitive drum remains in a stable state, thereby ensuring the printing quality. In addition, the existing powder box needs to be additionally provided with a positioning pin to realize the hinge between the developing frame and the drum frame, while the structure of the utility model directly uses the positioning column as the hinge shaft, and at the same time, a positioning hole and a positioning opening are set on the drum frame. When assembling, the end provided with the positioning hole can be assembled first, and then the positioning column can be inserted into the positioning opening by interference pressing, which can simplify the assembly process and improve the assembly efficiency. The positioning hole can realize the limiting of the developing frame relative to the drum frame in the direction perpendicular to the length of the powder box, and the positioning opening can facilitate the clamping of the positioning column and the positioning opening.

Powder box seventh embodiment:

As an explanation of the seventh embodiment of the powder box of the present invention, only the differences from the first embodiment of the powder box described above are explained below.

22 to 24, in this embodiment, the imaging device is further provided with a door cover (not shown), which is located at the installation opening of the installation cavity. A positioning groove 701 and a guide groove 702 are provided on the inner wall of the installation cavity. A detection switch (not shown) is provided in the positioning groove 701, and the detection switch is a sensor.

The powder box further includes a detection assembly 8, and the detection assembly 8 and the rotational force transmission assembly 9 are arranged on the same side of the box body 7. The box body 7 is provided with a mounting groove 71, and the detection assembly 8 is arranged in the mounting groove 71. Optionally, the mounting groove 71 can be located on the developing frame 72 or on the drum frame 73. In this embodiment, the mounting groove 71 is located on the drum frame 73.

The detection assembly 8 includes a detection member 81 and an elastic reset member 82. Preferably, the elastic reset member 82 is a spring. The mounting groove 71 includes an elastic member mounting portion 74 and a detection member mounting portion 75 arranged along the length direction of the box body 7. The elastic reset member 82 is mounted in the elastic member mounting portion 74, and the detection member 81 is mounted in the detection member mounting portion 75.

The detection member 81 includes a main body 83, a triggering portion 84, a first guide portion 85, a second guide portion 86 and a limit portion 87. The triggering portion 84 and the limit portion 87 are respectively arranged at two ends of the main body 83, and the first guide portion 85 is arranged between the triggering portion 84 and the limit portion 87. The triggering portion 84 is forced to drive the limit portion 87 to move from the retracted position to the extended position. A slide rail 76 is provided on the box body 7. The first guide portion 85 slides with the slide rail 76, and the elastic reset member 82 drives the limit portion 87 to reset.

The middle of the slide rail 76 is higher than both ends of the slide rail 76. Preferably, the slide rail 76 is arc-shaped and bends upward, and the retracted position is higher than the extended position. When the limiter 87 is in the retracted position, it is higher than the position of the detection switch, so that the limiter 87 can be prevented from colliding with the transmission head 703 when the powder box is loaded into the imaging device.

The first guide portion 85 includes a first guide column 851 and a second guide column 852, which are arranged at intervals and both slide with the slide rail 76. The two guide columns can better limit the moving path of the detection member 81 to ensure smooth movement of the limit portion 87 when the door cover is closed.

The main body 83 includes a first main body section 831, a deformation section 833 and a second main body section 832 connected in sequence, the triggering section 84 is located at one end of the first main body section 831 away from the deformation section 833, the limiting section 87 is located at one end of the second main body section 832 away from the deformation section 833, the first guide column 851 is arranged on the first main body section 831 and close to the deformation section 833, and the second guide column 852 is arranged on the second main body section 832 and close to the deformation section 833. The deformation section 833 is made of a flexible material that can be deformed.

The main body 83 is further provided with an abutting portion 834, which is arranged near the triggering portion 84 and protrudes outward from the side wall of the first main body section 831. The first end of the elastic reset member 82 abuts against the abutting portion 834, and the second end of the elastic reset member 82 abuts against the side wall of the elastic member mounting portion 74. The second guide portion 86 is arranged on the second main body section 832 and is arranged near the limiting portion 87. The second guide portion 86 and the limiting portion 87 are located on the same side of the second main body section 832. The second guide portion 86 extends into the guide groove 702 of the imaging device and slides along the guide groove 702. The height of the second guide portion 86 protruding outward from the side wall of the second main body section 832 is greater than the height of the limiting portion 87 protruding outward from the second main body section 832. The second guide portion 86 is located between the limiting portion 87 and the second guide column 852.

There are two first guide parts 85 and two slide rails 76 . The two slide rails 76 are respectively arranged on the two side walls of the detection component mounting part 75 . The two first guide parts 85 are respectively arranged on both sides of the main body 83 . One first guide part 85 is slidably matched with one slide rail 76 .

When the door cover is closed after the powder box is installed, the door cover applies a force to the trigger part 84, driving the detection member 81 to move, and the first guide column 851 and the second guide column 852 move along the slide rail 76. The movement trajectory of the first guide column 851 is from the A position of the slide rail 76 to the B position in Figure 22, and the movement trajectory of the second guide column 852 is from the B position of the slide rail 76 to the C position. The A position and the C position are the two ends of the slide rail 76, respectively, and the B position is the midpoint of the slide rail 76 and the highest point of the slide rail 76. During the movement of the detection member 81, the second guide part 86 slides along the guide groove 702 of the imaging device, and the limiting part 87 moves from the retracted position to the extended position, and enters the positioning groove 701 in the imaging device and cooperates with the positioning groove 701, and at the same time triggers the detection switch, and the imaging device recognizes that the powder box is correctly installed. After the limiting part 87 cooperates with the positioning groove 701, the powder box is straightened and positioned so that the rotation force transmission component 9 of the powder box can be correctly coupled with the transmission head of the imaging device.

In addition, when the powder box is taken out from the imaging device, the door cover of the imaging device is opened, and the force exerted by the door cover on the trigger part 84 disappears. The elastic reset member 82 drives the detection member 81 to reset under the action of its own elastic restoring force, and the limiting part 87 moves to the retracted position. At this time, the limiting part 87 withdraws from the positioning groove 701 of the imaging device, and the detection member 81 resets to the initial position.

As can be seen from the above, by setting the detection member to a structure that slides with the box body, the detection member is always in a retracted position during transportation to avoid damage to the detection member caused by bumps. At the same time, since the detection member is in a retracted position during the installation of the powder box to the imaging device, it will not collide with the internal structure of the imaging device, so the installation process is smoother.

In addition, the elastic reset member can be a compression spring, a tension spring or a torsion spring, or can be made of an elastic material such as rubber. The number of elastic reset members can also be more than two. The developing frame can also be provided with a positioning column at only one end, that is, only a first positioning column or only a second positioning column can be provided, and the positioning column is limitedly matched with the positioning groove on the imaging device. The positioning column can be integrally formed with the developing frame; or the positioning column is fixedly connected to the developing frame by a fixing member; or the positioning column is fixedly engaged with the developing frame. The angle between the electric contact pin and the electric contact surface can be changed as needed. The chip seat and the drum frame can also be fixedly connected by a fixing member; or the chip seat and the drum frame are fixedly connected by welding or clamping. One of the upper surface of the seat top wall and the lower surface of the seat bottom wall can also be set as a plane wall. In the axial direction of the photosensitive drum, the guide slope can also be located on the side of the chip seat close to the frame main body, and the guide slope gradually approaches the frame main body from the side close to the opening to the side away from the opening. Alternatively, both sides of the chip seat may be provided with guiding inclined surfaces in the axial direction of the photosensitive drum, and the guiding inclined surfaces on both sides of the chip seat gradually move away from each other from the side close to the opening to the side far from the opening. The distance H between the bottom wall of the chip seat and the bottom wall of the mounting cavity may be changed as required. The chip seat may also be provided on the developing frame. The above changes can also achieve the purpose of the utility model.

Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims (10)

1. A powder box, including a box body, a rotating part, a rotation force transmission component and a detection component; The rotating member is rotatably supported on the box body, the rotating force transmission assembly is arranged at an axial end of the rotating member, and the detection assembly and the rotating force transmission assembly are arranged on the same side of the box body; Features: The box body is provided with a mounting groove, and the detection component is arranged in the mounting groove; The detection component includes a detection member and an elastic reset member, and the detection member includes a main body, a triggering part, a guide part and a limit part. The triggering part and the limit part are respectively arranged at two ends of the main body, and the guide part is arranged between the triggering part and the limit part. The triggering part is forced to drive the limit part to move from a retracted position to an extended position. A slide rail is provided on the box body, and the guide part is slidably matched with the slide rail. The elastic reset member drives the limit part to reset. 2. The powder box according to claim 1, characterized in that: The middle portion of the slide rail is higher than both ends of the slide rail, and the retracted position is higher than the extended position. 3. The powder box according to claim 2, characterized in that: The slide rail is arc-shaped and bends upward. 4. The powder box according to claim 2, characterized in that: The guide portion includes a first guide column and a second guide column, wherein the first guide column and the second guide column are arranged at intervals and are both slidably matched with the slide rail. 5. The powder box according to claim 4, characterized in that: The main body portion comprises a first main body section, a deformation portion and a second main body section connected in sequence; The trigger portion is located at one end of the first main body section away from the deformation portion, the limiting portion is located at one end of the second main body section away from the deformation portion, the first guide column is arranged on the first main body section and close to the deformation portion, and the second guide column is arranged on the second main body section and close to the deformation portion. 6. The powder box according to claim 5, characterized in that: The deformation portion is made of a flexible material. 7. The powder box according to any one of claims 1 to 6, characterized in that: The main body is also provided with an abutment portion, which is arranged close to the trigger portion and protrudes outward from the side wall of the main body, the first end of the elastic return member abuts the abutment portion, and the second end of the elastic return member abuts the side wall of the installation groove. 8. The powder box according to any one of claims 1 to 6, characterized in that: The mounting groove comprises an elastic member mounting portion and a detection member mounting portion which are arranged along the length direction of the box body, the elastic reset member is mounted in the elastic member mounting portion, and the detection member is mounted in the detection member mounting portion. 9. The powder box according to claim 8, characterized in that: The number of the guide parts and the slide rails are both two, the two slide rails are respectively arranged on the two side walls of the detection component installation part, the two guide parts are respectively arranged on both sides of the main body, and one guide part is slidably matched with one slide rail. 10. An imaging device, wherein the imaging device is provided with an installation cavity and a door cover, the door cover is located at the installation opening of the installation cavity, a positioning groove is provided in the installation cavity, a detection switch is provided in the positioning groove, and it is characterized in that a powder box as described in any one of claims 1 to 9 is detachably installed in the installation cavity, and after the door cover is closed, the door cover abuts against the trigger part and pushes the detection part to move, the limit part moves from the retracted position to the extended position and enters the positioning groove, and the limit part triggers the detection switch.