Developer supply device

Abstract

The utility model discloses a developer replenishment device which comprises a containing part, a discharging base, a rotating component and a first valve component, the containing part can contain developer, the discharging base is connected with the containing part and provided with a valve clamping groove and a discharging opening for discharging the developer, and the rotating component is installed on the discharging base and can rotate relative to the discharging base. The first valve component is installed on the discharging base through the valve clamping groove, the first valve component can open and close the discharging opening, and in the process that the developing agent supply device is installed on the installation portion, the rotating component is connected with a second valve component of the image forming device, and the rotating component is rotated and can drive the second valve component to rotate. A middle hole formed in the second valve component is communicated with the powder inlet, the first valve component is moved, the discharge port is opened, the discharge port is communicated with the middle hole, and the developing agent is supplemented to the image forming device. When the developer supply device is arranged on the image forming device, the developer powder can be prevented from leaking, and the structure is simplified.

Description

Technical Field

[0001] The utility model relates to the field of image forming devices, in particular to a developer supplying device. Background Art

[0002] A process box (not shown in the figure) in an existing electronic photographic image forming device uses fine carbon powder particles as a developer. When the developer particles in the process box are consumed, a developer replenishing container needs to be used to replenish the developer in the process box.

[0003] The container valve unit of the developer replenishing container in the prior art rotates in cooperation with the machine end to open the discharge port. However, this design may result in the container valve unit rotating and the powder outlet being opened when the powder outlet of the replenishing container and the powder inlet of the image forming device are not accurately matched. This may cause the developer to leak. When the prior art solution is matched with the image forming device, the developer replenishing container may have a complex structure, and the first valve component of the container may not be successfully connected to the image forming device when matching, resulting in jamming between the components, causing powder discharge failure.

[0004] Therefore, a technical solution to the above problems is needed. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a developer supply device to solve the above-mentioned technical problems.

[0006] In order to achieve the purpose, the utility model adopts the following technical solutions:

[0007] A developer supply device is detachably mounted on a mounting portion of an image forming device to supply developer to the image forming device. The mounting portion is provided with a second valve member and a powder inlet. The second valve member is provided with a middle hole. The second valve member can rotate on the mounting portion to connect the middle hole with the powder inlet. The developer supply device comprises:

[0008] a receiving portion capable of receiving a developer;

[0009] A discharge base is connected to the accommodating portion and is provided with a valve slot and a discharge port for discharging the developer;

[0010] A rotating member, mounted on the discharge base and rotatable relative to the discharge base;

[0011] A first valve member is mounted on the discharge base through a valve slot, and the first valve member can open and close the discharge port;

[0012] The developer supply device has a first movement process and a second movement process when it is installed on the installation part;

[0013] During the first movement, the developer supply device is installed in the mounting portion, the rotating member is engaged with the second valve member, the rotating member is rotated and drives the second valve member to rotate, connecting the middle hole with the powder inlet;

[0014] In the second movement process, the first shutter member is moved, the discharge port is opened, the discharge port is communicated with the intermediate hole, and the developer is replenished to the image forming device.

[0015] Preferably, the rotating component is provided with a follower, and when the developer supply device is installed in the image forming device, the follower engages with the engaging portion provided on the second valve component provided on the image forming device, and can drive the second valve component to rotate in the mounting portion to connect the middle hole with the powder inlet.

[0016] Preferably, the discharge port is communicated with the valve slot, and the first valve member can move to the discharge port in the valve slot to block the discharge port.

[0017] Preferably, the first shutter member includes a handle portion and a shielding portion, the handle portion is connected to the shielding portion, and the shielding portion is installed in the shutter slot and can move in the shutter slot to open or close the discharge port.

[0018] Preferably, it also includes an elastic member, which is installed in the valve slot, and the shielding part abuts against the elastic member in the valve slot, and the elastic member can provide the shielding part with elastic force to open the discharge outlet; the valve slot also includes a clamping part, and a clamping groove is also provided on the handle part, and the clamping part is clamped in the clamping groove to block the movement of the handle part, so that the shielding part overcomes the elastic force of the elastic member and blocks the discharge outlet.

[0019] Preferably, the engaging portion can be engaged with the engaging groove.

[0020] Preferably, the first shutter member is movable in the shutter slot along the axial direction of the discharge base.

[0021] Preferably, the first shutter member is movable in the shutter retaining groove along a circumferential direction of the ejection base.

[0022] Preferably, a sliding portion is provided on the shielding portion, and when the shielding portion is installed in the valve slot, the sliding portion and the valve slot are clearance-matched.

[0023] Preferably, a shielding area is provided on the shielding portion, and a protruding structure is provided around the shielding area. When the shielding portion is installed in the valve slot, the protruding structure fits around the valve slot.

[0024] Preferably, an operating rod is provided on the mounting portion, and the driven member can also engage with the operating rod, and the driven member can be driven to rotate through the operating rod.

[0025] The developer supplying device with the above structure, when the developer supplying device is installed on the image forming device, the follower of the rotating component engages and rotates with the image forming device, and when it rotates to a certain angle, the powder inlet of the device is opened. At this time, the valve component is moved to open the discharge outlet of the container, and the container replenishes the developer to the device, first opening the powder inlet of the device and then opening the discharge outlet of the container. By setting these two actions separately, when the developer supplying device is installed on the image forming device, it can be ensured that the discharge outlet of the developer supplying device corresponds to the position of the powder inlet of the device before opening the discharge outlet of the developer supplying device, thereby ensuring that the developer will not leak. At the same time, the structure of the developer supplying device is simplified to avoid jamming when the developer supplying device is combined with the image forming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments 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 these drawings without paying creative labor.

[0027] Figure 1 A three-dimensional diagram of the developer supply device of the present invention installed in the image forming device;

[0028] Figure 2 It is a three-dimensional diagram of the image forming device in the utility model;

[0029] Figure 3 It is a three-dimensional diagram of the installation part of the image forming device in the utility model;

[0030] Figure 4 It is a top view of the installation part of the image forming device in the utility model;

[0031] Figure 5 This is a three-dimensional diagram of the installation part of the utility model observed from the top;

[0032] Figure 6 This is a three-dimensional diagram of the installation part of the utility model observed from the bottom;

[0033] Figure 7 The exploded structure diagram of the installation part in the utility model is shown in FIG. Figure 1 ;

[0034] Figure 8 The exploded structure diagram of the installation part in the utility model is shown in FIG. Figure 2 ;

[0035] Fig. 9 It is a three-dimensional diagram of the second valve component in the utility model;

[0036] Fig.10 It is a three-dimensional diagram of the developer supply device in the first embodiment of the utility model (without the containing part);

[0037] Fig.11 This is a schematic diagram of the exploded structure of the developer supply device in the first embodiment of the utility model (without the containing part);

[0038] Fig.12 It is a three-dimensional diagram of the discharge base in the first embodiment of the utility model;

[0039] Fig.13 The three-dimensional structure of the rotating component in the first embodiment of the utility model Figure 1 ;

[0040] Fig.14 The three-dimensional structure of the rotating component in the first embodiment of the utility model Figure 2 ;

[0041] Fig.15 It is a three-dimensional diagram of the first valve component of the first embodiment of the utility model;

[0042] Fig.16 It is a three-dimensional diagram of the developer supply device in the second embodiment of the utility model (without the containing part);

[0043] Fig.17 for Fig.16 A schematic diagram of the enlarged structure of the A position in the middle;

[0044] Fig.18 It is a cross-sectional view of the developer supply device in the second embodiment of the utility model (without the containing part);

[0045] Fig.19 It is a three-dimensional diagram of the developer supply device in the third embodiment of the present utility model without opening the discharge port (removing the accommodation portion);

[0046] Fig. 20 This is a three-dimensional diagram of the developer supply device in the second embodiment of the present invention after the discharge port is opened (the containing part is removed).

[0047] In the figure: 100, image forming device; 110, mounting portion; 120, first frame; 121, first air hole; 1211, middle cavity; 122, second frame; 1221, second air hole; 130, second shutter member; 131, middle hole; 132, joint portion; 132a, first contact surface; 132b, second contact surface; 140, operating rod; 141, annular portion; 1411, protruding portion; 1411a, fifth contact surface; 1411b, sixth contact surface; 1412, recessed portion; 142, rod portion; 150, powder inlet; 160, cover; 200, developer supply device; 210 , accommodating portion; 220, discharge base; 220a, discharge channel; 221, discharge outlet; 230, valve slot; 240, rotating member; 241, through hole; 242, follower; 2421, protrusion; 2421a, third contact surface; 2421b, fourth contact surface; 250, first valve member; 251, handle portion; 252, shielding portion; 2521, sliding portion; 2522, shielding area; 2523, protruding structure; 260, elastic member; 222, engaging portion; 2221, connecting arm; 2222, engaging protrusion; 2511, engaging slot; 2522, blocking portion; 231, guide column. DETAILED DESCRIPTION

[0048] In order to better understand the technical solution of the present utility model, the embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0049] It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0050] See also Figure 1 , which is a schematic structural diagram of a developer supply device 200 of the present invention, on which a receiving portion 210 is provided.

[0051] See also Figures 1 to 9 A developer supply device 200 is provided. The developer supply device 200 is detachably mounted on an image forming device 100 (e.g., a printer) along a direction M to supply developer to a process cartridge in the image forming device 100. The developer supply device 200 stores a developer medium (e.g., developer) for printing. The image forming device 100 is provided with a mounting portion 110. The developer supply device 200 is mounted on the mounting portion 110 and can be connected to the image forming device 100. The developer supply device 200 supplies developer to the process cartridge.

[0052] See also Figure 3 , Figures 5 to 8The mounting portion 110 includes a first frame 120, a second frame 122, a second valve member 130, an operating rod 140 and a cover 160. The first frame 120 and the second frame 122 can form a mounting frame for mounting the second valve member 130. The operating rod 140 is arranged on the top of the mounting frame and can be rotated on the top of the mounting frame. The first frame 120 and the second frame 122 are respectively provided with a first air hole 121 and a second air hole 1221. In the mounting frame assembled by the first frame 120 and the second frame 122, the first air hole 121 of the first frame 120 and the second air hole 1221 on the second frame 122 correspond to each other. Filters with predetermined air flow rates can be installed on the first air hole 121 and the second air hole 1221, and the mounting frame is connected to the outside through the first air hole 121 and the second air hole 1221.

[0053] The first frame 120 is also provided with an intermediate cavity 1211, and the second frame 122 is provided with a powder inlet 150 connected with the processing box of the image forming device 100. When the first frame 120 and the second frame 122 form a mounting frame, the powder inlet 150 is connected with the intermediate cavity 1211; and the second valve member 130 is provided with an intermediate hole 131. In the initial state, the second valve member 130 is installed in the mounting frame, and the outer side of the intermediate hole 131 is blocked by the side wall of the first frame 120. The second valve member 130 can rotate in the mounting frame, so that the second valve member 130 can be rotated on the mounting frame to the position where the intermediate hole 131 is connected with the intermediate cavity 1211, so that the intermediate hole 131 of the second valve member is connected with the powder inlet 150, and when the second valve member 130 rotates, powder is input and output.

[0054] See also Fig. 9 The second valve member 130 is also provided with a coupling portion 132. When the developer supplying device 200 is installed on the mounting portion 110, the coupling portion 132 is coupled with a rotating member 240 provided for the developer supplying device 200. The developer supplying device 200 can drive the coupling portion 132 to rotate, so that the middle hole 131 can be connected with the powder inlet 150.

[0055] The cover 160 is also installed in the mounting frame, and the cover 160 is engaged with the first frame 120, so that the cover 160 does not rotate relative to the first frame 120 in the mounting frame, and the second valve member 130 is located between the cover 160 and the first frame 120 in the mounting frame; in the initial state, the second valve member 130 is installed in the mounting frame, and the cover 160 blocks the inner side of the middle hole 131. When the developer supply device 200 is installed in the mounting portion 110, the cover 160 blocks between the middle hole 131 and the developer supply device 200; when When the developer supplying device 200 is installed to the mounting portion 110, the rotating member 240 provided on the developer supplying device 200 engages with the second valve member 130. Rotating the rotating member 240 drives the second valve member 130 to rotate in the mounting frame, so that the inner side of the middle hole 131 of the second valve member 130 is not blocked by the cover 160, and the outer side of the middle hole 131 is connected to the middle cavity 1211. The developer of the developer supplying device 200 can be replenished to the image forming device 100 through the middle hole 131 and the powder inlet 150 in sequence.

[0056] The other structures and working modes of the image forming device 100 are prior art and will not be described in detail here.

[0057] Embodiment 1

[0058] See also Figures 1 to 15 A developer supply device 200, the developer supply device 200 includes a container 210, a discharge base 220, a rotating member 240 and a first shutter member 250, the container 210 is used to accommodate the developer, the discharge base 220 is arranged on the container 210, and the discharge base 220 is provided with a discharge channel 220a and a discharge port 221, the discharge channel 220a is used to connect the container 210 and the discharge port 221, the discharge base 220 can be used to discharge the developer in the container 210 through the discharge port 221, the first shutter member 250 is installed on the discharge base 220, and can be used to discharge the developer in the container 210. The discharge port 221 is opened or closed on the base 220, and the rotating member 240 is arranged on the discharge base 220 and can rotate on the discharge base 220. When the developer supply device is installed in the image forming device 100, the rotating member 240 can engage with the engaging portion 132 on the image forming device 100, drive the second valve member 130 to rotate, and make the middle hole 131 of the second valve member 130 communicate with the powder inlet 150 provided in the printing device, and the developer in the developer supply device 200 can be replenished into the image forming device 100 through the middle hole 131 and the powder inlet 150.

[0059] The discharge base 220 is connected to the outlet of the container 210 and is used to discharge the developer in the container 210. Specifically, in the present embodiment, the discharge base 220 is a substantially cylindrical structure. When the developer supply device 200 is installed to the mounting portion 110, the discharge base 220 is installed in the second valve member 130, and the discharge base 220 coincides with the rotation axis of the second valve member 130. The container 210 is preferably a developer packaging bag, which can contain developer. One end of the discharge base 220 is connected to the outlet of the container 210, and the discharge base 220 can communicate with the inside of the container 210. The discharge outlet 221 is provided on the side of the discharge base 220 and communicates with the inside of the discharge base 220. When the discharge base 220 is connected to the container 210, the discharge outlet 221 communicates with the container 210, so that the developer in the container 210 can be discharged through the discharge outlet 221.

[0060] See also Fig.11 , Fig.12 and Fig.15 A valve slot 230 is also provided on the discharge base 220. The valve slot 230 is axially arranged between the discharge port 221 and the discharge channel 220a on the discharge base 220. The valve slot 230 is connected to the discharge port 221 on the discharge base 220. The first valve member 250 is installed in the valve slot 230, and the first valve member 250 can move in the valve slot 230. When the first valve member 250 moves in the valve slot 230, the first valve member 250 can be used to open or close the discharge port 221. Specifically, in the present embodiment, the valve slot 230 is arranged on the side surface of the discharge base 220 of the cylindrical structure along the axial direction of the discharge base 220, the discharge port 221 radially penetrates the side wall of the discharge base 220 of the cylindrical structure, and the valve slot 230 extends on the side surface of the discharge base 220 along the axial direction of the discharge base 220 to the position of the discharge port 221, so that the valve slot 230 is connected with the discharge port 221.

[0061] The first valve member 250 includes a handle portion 251 and a shielding portion 252 , wherein the handle portion 251 is connected to the shielding portion 252 . When the first valve member 250 is installed in the valve slot 230 , the shielding portion 252 is installed in the valve slot 230 and can move in the valve slot 230 for opening or discharging the outlet 221 . Specifically, in the present embodiment, the handle portion 251 and the shielding portion 252 are an integrally formed structure. The shape of the shielding portion 252 is adapted to the shape of the valve slot 230, and can be installed in the valve slot 230, and can be moved in the valve slot 230 along the axial direction of the discharge base 220, that is, it can be pulled out or inserted into the valve slot 230; the shape of the handle portion 251 is larger than the shape of the valve slot 230, and the handle portion 251 is limited on the valve slot 230. When the shielding portion 252 is installed in the valve slot 230, the handle portion 251 is located outside the valve slot 230. The handle portion 251 can be held outside the valve slot 230, the handle portion 251 can be lifted, and the shielding portion 252 can be moved up and down in the valve slot 230 along the axial direction of the discharge base 220 to open or close the discharge port 221.

[0062] Furthermore, the shielding portion 252 is provided with a sliding portion 2521, which is arranged around the shielding portion 252. When the shielding portion 252 is installed in the valve slot 230, the sliding portion 2521 is clearance-matched with the valve slot 230, so that when the shielding portion 252 moves, when the user no longer lifts the handle portion 251, the shielding portion 252 is fixed to the corresponding position of the valve slot 230 by the friction between the sliding portion 2521 and the valve slot 230, so that the shielding portion 252 can keep the discharge port 221 open when moving upward; the shielding portion 252 is also provided with a sealing member for sealing the discharge port 221. The shielding area 2522 blocks the exhaust outlet 221, and the area of ​​the shielding area 2522 is slightly larger than the area of ​​the exhaust outlet 221. When the shielding portion 252 moves on the valve slot 230, the shielding area 2522 can move to the position of the exhaust outlet 221 to block the exhaust outlet 221, and the outer periphery of the shielding area 2522 is provided with a protruding structure 2523, and the protruding mechanism 2523 is made of sealing materials such as silicone. When the shielding area 2522 moves to the position of the exhaust outlet 221, the protruding structure 2523 can fit with the periphery of the exhaust outlet 221 to enhance the sealing effect between the shielding area 2522 and the exhaust outlet 221.

[0063] See also Fig.13 , Fig.14 The rotating member 240 is sleeved on the discharge base 220 and can rotate along the axis of the discharge base 220 as the rotation axis. Specifically, in this embodiment, a through hole 241 penetrating the rotating member 240 is provided in the middle of the rotating member 240, and the diameter of the through hole 241 is larger than the diameter of the discharge base 220, so that the rotating member 240 can be sleeved on the discharge base 220 through the through hole 241 and can rotate on the discharge base 220.

[0064] Furthermore, a follower 242 is also provided on the rotating member 240. When the developer supply device 200 is installed on the mounting portion 110, the follower 242 engages with the engaging portion 132 on the second valve member 130 in the mounting portion 110, so that the rotating member 240 can drive the second valve member 130 to rotate, so that the middle hole 131 of the second valve member 130 is connected with the powder inlet 150. Specifically, in the present embodiment, the rotating member 240 is formed with a follower 242 protruding along the axial direction of the discharge base 220, and a protrusion 2421 is provided on the follower 242 along the radial direction of the discharge base 220. When the developer supply device 200 is installed on the mounting portion 110, the protrusion 2421 can engage with the engaging portion 132 in the mounting portion 110, so as to drive the engaging portion 132 to rotate.

[0065] For further information, see Fig. 9 The engaging portion 132 is a radially protruding protrusion on the second valve member 130, and the engaging portion 132 has a first contact surface 132a and a second contact surface 132b in the circumferential direction (rotation direction, the same below) of the second valve member 130; there are three protrusions on the follower 242, namely a first protrusion 2421a, a second protrusion 2421c and a third protrusion 2421b, and the three protrusions 2421 are arranged in an array on the follower 242 along the circumferential direction (rotation direction, the same below) of the discharge base 220, and the length of the second protrusion 2421c in the axial direction of the discharge base 220 is smaller than the size of the first protrusion 2421a and the third protrusion 2421b located on both sides. When the developer supply device 200 is installed on the mounting portion 110, the first protrusion 2421 a and the third protrusion 2421b can be respectively stuck on both sides of the joint 132, and the third contact surface 2421a1 of the first protrusion 241a close to the second protrusion 2421c side abuts against the first contact surface 132a, and the fourth contact surface 2421b1 of the third protrusion 2421b close to the second protrusion 2421c side abuts against the second contact surface 132b, so that the follower 242 is engaged with the joint 132, so that the rotating member 240 can drive the joint 132 to rotate; and because the length of the second protrusion 2421c in the axial direction of the discharge base 220 is smaller than the size of the first protrusion 2421a and the third protrusion 2421b, when the follower 242 is engaged with the joint 132, the protrusion 2421 located in the middle of the three protrusions 2421 will not affect the engagement.

[0066] Furthermore, a groove 132c may be provided on the joint portion 132, which may be engaged with the second protrusion 2421c of the follower 242. Specifically, in the present embodiment, the groove 132c is a groove formed by the top of the joint portion 132 being recessed in the axial direction. When the follower 242 is engaged with the joint portion 132, the second protrusion 2421c extends into the groove 132c and may slide in the groove 132c. When the rotating member 240 rotates until the second protrusion 2421c is pressed against the side wall of the groove 132c, there is friction between the second protrusion 2421c and the joint portion 132, driving the joint portion 132 to rotate.

[0067] See also Figure 4 and Fig.14 When the developer supply device 200 is installed on the mounting portion 110, the follower 242 is also engaged with the operating rod 140. When the user operates the operating rod 140 to rotate on the mounting frame, the operating rod 140 can drive the rotating member 240 to rotate, thereby driving the second valve member 130 to rotate, so that the middle hole 131 is connected with the powder inlet 150. Specifically, in this embodiment, the operating rod 140 includes an annular portion 141 and a rod portion 142. The operating rod 140 can be installed on the first frame 120 through the annular portion 141 to rotate, and the annular portion 141 is provided with a protrusion 1411 protruding radially inward. The protrusion 1411 is provided with a fifth contact surface 1411a and a sixth contact surface 1411b along the circumferential direction of the annular portion 141. When the developer supply device 200 is installed on the mounting portion 110, the first protrusion 2421a and the third protrusion 2421b on both sides of the follower 242 are engaged with the developer supply device 200. 1b can be respectively stuck on both sides of the protrusion 1411, the third contact surface 2421a1 abuts against the fifth contact surface 1411a, and the fourth contact surface 2421b1 abuts against the sixth contact surface 1411b, so that the follower 242 engages with the protrusion 1411, so that the user pushes the rod 142 to make the annular portion 141 rotate on the first frame 120, and the annular portion 141 can drive the rotating member 240 to rotate, thereby driving the second valve member 130 to rotate, so that the middle hole 131 of the second valve member 130 is connected with the powder inlet 150.

[0068] Furthermore, a recessed portion 1412 is provided on the protruding portion 1411. In the circumferential direction of the annular portion 141, the recessed portion 1412 is located between the fifth contact surface 1411a and the sixth contact surface 1411b, so that when the follower 242 engages with the protruding portion 1411, the second protrusion 2421c can be engaged in the recessed portion 1412, so that the annular portion 141 can drive the follower 242 to rotate.

[0069] The developer supply device 200 of the present invention has a first movement process and a second movement process when being installed on the installation portion 110;

[0070] During the first movement, the discharge base 220 is inserted into the second valve member 130, the discharge port 221 corresponds to the position of the middle cavity 1211, the follower 242 of the rotating member 240 engages with the protruding portion 1411 of the operating rod 140, and engages with the engaging portion 132 of the second valve member 130, the operating rod 140 is rotated on the image forming device 100, the rotating member 240 follows the operating rod 140 to rotate on the image forming device 100, the second valve member 130 provided on the image forming device 100 is rotated by the follower 242, and the second valve member 130 is rotated on the mounting frame until the inner and outer sides of the middle hole 131 of the second valve member 130 are not blocked by the cover 160 and the first frame 120, the discharge port 221, the middle hole 131 and the powder inlet 150 correspond to each other, and the middle hole 131 is connected to the powder inlet 150;

[0071] During the second movement, on the developer replenishing device 200, the blocking portion 252 is taken out of the valve slot 230 by taking the handle portion 251 on the first valve member 250, and the blocking portion 252 no longer blocks the discharge outlet 221. The discharge outlet 221 is opened, and the discharge outlet 221, the middle hole 131 and the powder inlet 150 are connected. The developer is replenished into the image forming device 100 from the accommodating portion 210 through the discharge outlet 221 of the discharge base 220, the middle hole 131 of the second valve member 130 and the powder inlet 150 of the mounting portion 110.

[0072] Implementation case 2:

[0073] See also Figures 16 to 18 As shown, another developer supply device 200 is provided in this embodiment. The difference between this embodiment and the first embodiment is that: in this embodiment, an elastic member 260 is further included, and the first valve member 250 includes a handle portion 251 and a shielding portion 252, the shielding portion 252 is connected to the handle portion 251, and the shielding portion 252 is installed in the valve card slot 230, and the elastic member 260 is installed in the valve card slot 230, and the elastic member 260 is located at the shielding portion 252 and the valve slot 230, the elastic force of the elastic member 260 on the shielding portion 252 causes the shielding portion 252 to open the discharge outlet 221; a clamping portion 222 is also provided on the discharge base 220, and when the handle portion 251 is pressed downward, the shielding portion 252 can overcome the elastic force of the elastic member 260 and block the discharge outlet 221 downward, and the clamping portion 222 is clamped on the handle portion 251, so that the shielding portion 252 can keep blocking the discharge outlet 221.

[0074] Specifically, in the present embodiment, a blocking portion 2522 is provided on the shielding portion 252, a guide column 231 is provided in the valve slot 230, and the elastic member 260 is preferably a spring, one end of the spring is sleeved on the guide column 231, and the other end is in contact with the blocking portion 2522, so that the elastic member 260 is arranged between the shielding portion 252 and the valve slot 230, and the elastic member 260 exerts an elastic force on the shielding portion 252, so that the shielding portion 252 moves toward opening the discharge port 221.

[0075] The engaging portion 222 includes a connecting arm 2221 whose one end is connected to the discharge base 220, and a engaging protrusion 2222 is provided on the free end of the connecting arm 2221. The engaging protrusion 2222 partially extends to the top of the valve slot 230, and the engaging protrusion 2222 can be engaged with the handle portion 251, so that the first valve member 250 can be compressed into the valve slot 230, and the shielding portion 252 keeps shielding the discharge outlet 221; the engaging protrusion 2222 is connected to the discharge base 220 through the connecting arm 2221, and can be elastically deformed on the discharge base 220, that is, the engaging protrusion 2222 can be manually operated to disengage it from the handle portion 251, so that the shielding portion 252 is away from the discharge outlet 221 under the elastic force of the elastic member 260, so that the discharge outlet 221 is opened to discharge the developer.

[0076] Furthermore, a snap-fit ​​groove 2511 is provided on the handle portion 251. When the handle portion 251 is pressed downward and the shielding portion 252 overcomes the elastic force of the elastic member 260 to downwardly shield the discharge outlet 221, the snap-fit ​​portion 222 can be snapped onto the snap-fit ​​groove 2511 to allow the shielding portion 252 to keep shielding the discharge outlet 221. By snapping the snap-fit ​​portion 222 into the snap-fit ​​groove 2511, the snap-fitting between the snap-fit ​​portion 222 and the handle portion 251 is made more stable and will not detach at will, thereby ensuring the closure of the discharge outlet 221.

[0077] The developer supply device 200 of the present invention has a first movement process and a second movement process when being installed on the installation portion 110;

[0078] During the first movement, the discharge base 220 is inserted into the second valve member 130, the discharge port 221 corresponds to the position of the middle cavity 1211, the follower 242 of the rotating member 240 engages with the protruding portion 1411 of the operating rod 140, and engages with the engaging portion 132 of the second valve member 130, the operating rod 140 is rotated on the image forming device 100, the rotating member 240 follows the operating rod 140 to rotate on the image forming device 100, the second valve member 130 provided on the image forming device 100 is rotated by the follower 242, and the second valve member 130 is rotated on the mounting frame until the inner and outer sides of the middle hole 131 of the second valve member 130 are not blocked by the cover 160 and the first frame 120, the discharge port 221, the middle hole 131 and the powder inlet 150 correspond to each other, and the middle hole 131 is connected to the powder inlet 150;

[0079] During the second movement, the engaging portion 222 is pressed on the developer replenishing device 200 so that the engaging protrusion 2222 of the engaging portion 222 is no longer engaged with the engaging groove 2511 of the handle portion 251, and the handle portion 251 and the shielding portion 252 move outward in the axial direction of the discharge base 220 in the valve slot 230 through the elastic force of the elastic member 260. The shielding portion 252 no longer blocks the discharge outlet 221, and the discharge outlet 221 is opened. The discharge outlet 221, the middle hole 131 and the powder inlet 150 are connected, and the developer is replenished into the image forming device 100 from the accommodating portion 210 through the discharge outlet 221 of the discharge base 220, the middle hole 131 of the second valve member 130 and the powder inlet 150 of the mounting portion 110.

[0080] In this embodiment, the structures of the image forming device 100 and the rotating member 240 are consistent with those in the first embodiment and will not be described again here.

[0081] Implementation case three:

[0082] See also Fig.19 , Fig. 20 As shown, another developer supplying device 200 is provided in this embodiment case, and the difference between this embodiment case and embodiment case one is that: in this embodiment case, the structure of the first valve member 250 is the same as that in embodiment one, including a handle portion 251 and a shielding portion 252, but in this embodiment, the size of the valve slot 230 along the circumferential direction (rotation direction) of the discharge base 220 is larger than that in embodiment one, so that the first valve member 250 can move on the movable slot along the circumferential direction of the discharge base 220 to open or close the discharge port 221.

[0083] Specifically, in the present embodiment, the valve slot 230 is an arc-shaped slot, which is arranged along the circumferential direction of the discharge base 220. The size of the valve slot 230 in the circumferential direction of the discharge base 220 is at least twice the size of the shielding portion 252 in the circumferential direction of the discharge base 220, that is, when the shielding portion 252 moves on the valve slot 230 along the circumferential direction of the discharge base 220, the discharge port 221 can be fully opened.

[0084] The developer supply device 200 of the present invention has a first movement process and a second movement process when being installed on the installation portion 110;

[0085] During the first movement, the discharge base 220 is inserted into the second valve member 130, the discharge port 221 corresponds to the position of the middle cavity 1211, the follower 242 of the rotating member 240 engages with the protruding portion 1411 of the operating rod 140, and engages with the engaging portion 132 of the second valve member 130, the operating rod 140 is rotated on the image forming device 100, the rotating member 240 follows the operating rod 140 to rotate on the image forming device 100, the second valve member 130 provided on the image forming device 100 is rotated by the follower 242, and the second valve member 130 is rotated on the mounting frame until the inner and outer sides of the middle hole 131 of the second valve member 130 are not blocked by the cover 160 and the first frame 120, the discharge port 221, the middle hole 131 and the powder inlet 150 correspond to each other, and the middle hole 131 is connected to the powder inlet 150;

[0086] During the second movement, on the developer replenishing device 200, by taking the handle portion 251 on the first valve member 250, the shielding portion 252 is moved in the valve slot 230 along the circumferential direction of the discharge base 220, and the shielding portion 252 no longer blocks the discharge outlet 221. The discharge outlet 221 is opened, and the discharge outlet 221, the middle hole 131 and the powder inlet 150 are connected. The developer is replenished into the image forming device 100 from the accommodating portion 210 through the discharge outlet 221 of the discharge base 220, the middle hole 131 of the second valve member 130 and the powder inlet 150 of the mounting portion 110.

[0087] In this embodiment, the structures of the image forming device 100 and the rotating member 240 are consistent with those in the first embodiment and will not be described again here.

[0088] When the developer replenishing device of the utility model is installed on the image forming device, the follower of the rotating component engages with the image forming device and rotates. When it rotates to a certain angle, the powder inlet of the device is opened. At this time, the valve component is moved to open the discharge outlet of the container. The container replenishes the developer to the device. The powder inlet of the device is opened first, and then the discharge outlet of the container is opened. By setting these two actions separately, when the developer replenishing device is installed on the image forming device, it can be ensured that the discharge outlet of the developer replenishing device is opened when the position of the discharge outlet of the developer replenishing device corresponds to the powder inlet of the device, thereby ensuring that the developer will not leak. At the same time, the structure of the developer replenishing device is simplified to avoid the jamming phenomenon when the developer replenishing device is combined with the image forming device.

[0089] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A developer supply device, which is detachably mounted on a mounting portion of an image forming device to supply developer to the image forming device, wherein the mounting portion is provided with a second valve member and a powder inlet, the second valve member is provided with a middle hole, and the second valve member can rotate on the mounting portion to connect the middle hole with the powder inlet, characterized in that: The developer supply device comprises: a receiving portion capable of receiving a developer; A discharge base connected to the accommodating portion, on which a valve slot and a discharge port for discharging the developer are provided; A rotating member, mounted on the discharge base and rotatable relative to the discharge base; a first valve member, mounted on the discharge base through the valve slot, the first valve member being capable of opening and closing the discharge port; The developer supply device has a first movement process and a second movement process when it is installed on the installation part; During the first movement, the developer supply device is installed in the mounting portion, the rotating member is engaged with the second valve member, the rotating member is rotated and drives the second valve member to rotate, connecting the middle hole with the powder inlet; In the second movement process, the first shutter member is moved, the discharge port is opened, the discharge port is communicated with the intermediate hole, and the developer is replenished to the image forming device.

2. The developer supply device according to claim 1, characterized in that: The rotating component is provided with a follower. When the developer supply device is installed in the image forming device, the follower engages with the engaging portion provided on the second valve component provided on the image forming device, and can drive the second valve component to rotate in the mounting portion to connect the middle hole with the powder inlet.

3. The developer supply device according to claim 1, characterized in that: The discharge port is communicated with the valve slot, and the first valve member can move within the valve slot to the discharge port to cover the discharge port.

4. The developer supply device according to claim 3, characterized in that: The first shutter member includes a handle portion and a shielding portion, wherein the handle portion is connected to the shielding portion, and the shielding portion is installed in the shutter slot and can move in the shutter slot to open or close the discharge port.

5. The developer supply device according to claim 4, characterized in that: The valve slot also includes an elastic member, which is installed in the valve slot, and the shielding portion abuts against the elastic member in the valve slot, and the elastic member can provide the shielding portion with an elastic force to open the discharge outlet; the valve slot also includes a clamping portion, and a clamping groove is also provided on the handle portion, and the clamping portion is clamped on the clamping groove to block the movement of the handle portion, so that the shielding portion overcomes the elastic force of the elastic member and blocks the discharge outlet.

6. The developer supply device according to claim 4, characterized in that: The first shutter member is movable in the shutter retaining groove along the axial direction of the ejection base.

7. The developer supply device according to claim 4, characterized in that: The first shutter member is movable in the shutter retaining groove along a circumferential direction of the ejection base.

8. The developer supply device according to claim 4, characterized in that: The shielding part is provided with a sliding part, and when the shielding part is installed in the valve slot, the sliding part and the valve slot are in clearance fit.

9. The developer supply device according to claim 4, characterized in that: The shielding portion is provided with a shielding area, and a protruding structure is provided around the shielding area. When the shielding portion is installed in the valve slot, the protruding structure fits around the valve slot.

10. The developer supply device according to claim 2, characterized in that: An operating rod is provided on the mounting portion, and the driven member can also be engaged with the operating rod, and the driven member can be driven to rotate through the operating rod.

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