CN113093496A

CN113093496A - Connection structure of split type powder storehouse

Info

Publication number: CN113093496A
Application number: CN202110469983.3A
Authority: CN
Inventors: 王立成; 魏振辉; 齐黎明; 李�一; 王奇
Original assignee: Ningbo Deli Kebei Technology Co Ltd
Current assignee: Ningbo Deli Kebei Technology Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-07-09

Abstract

The invention relates to a connecting structure of a split type powder bin, which is arranged in a printer shell with a cover plate and comprises a toner bin, a toner hopper and a toner hopper, wherein the toner hopper is integrally connected with a toner cartridge main body and is provided with a toner inlet; a first cover body for opening and closing the powder inlet; the powder bin box is matched with the powdered ink bin and is provided with a powder outlet; the second cover body can open and close the powder outlet; the powder outlet piece is provided with a first opening and is rotationally arranged in the powder bin box, and the first opening can be overlapped with the powder outlet along with the rotation of the powder outlet piece so as to open the powder outlet or the first opening is staggered with the powder outlet so as to close the powder outlet; a linkage member connected to the cover plate; the transmission mechanism is in transmission connection with the powder outlet piece and the linkage piece, and the transmission mechanism can drive the first opening of the powder outlet piece to move to the position of the powder outlet along with the closing action of the cover plate. This connection structure in split type powder storehouse is independent of the powdered ink storehouse and sets up the powder storehouse box to make things convenient for the user to irritate the powder by oneself or reduce powder storehouse replacement cost, and can avoid the powdered ink in the assembling process to spill.

Description

Connection structure of split type powder storehouse

Technical Field

The invention relates to the technical field of laser printers, in particular to a connecting structure of a split type powder bin.

Background

The selenium drum mechanism used in the existing laser printer is mainly divided into an integrated selenium drum structure and a split selenium drum structure. The integrated toner cartridge structure integrates the imaging unit and the developing unit in the toner cartridge, and a user needs to integrally replace the toner cartridge or automatically fill the toner cartridge with toner after using the toner in the toner cartridge. Because the selenium drum has more internal components and higher replacement cost, and the user fills powder into the selenium drum by oneself, the problem of powder blocking or powder leakage is easy to appear when printing because of improper operation, and then the printing effect is influenced or the printing portrait is polluted. The existing split type toner cartridge structure generally independently forms the powder bin and the developing roller into one component, and after carbon powder in the powder bin is used up, the powder bin and the developing roller need to be replaced simultaneously, so that the replacement cost is high.

Disclosure of Invention

The invention aims to solve the technical problem of providing a connecting structure of a split type powder bin, which is provided with a powder bin box independent of a toner bin, is convenient for a user to fill powder or reduce the replacement cost of the powder bin and can avoid the toner from spilling in the assembling process.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a connection structure in split type powder storehouse, sets up in the printer casing that has the apron, its characterized in that: comprises that

The toner bin is integrally connected with the toner cartridge main body, and a toner inlet is formed in the toner bin;

the first cover body is movably connected to the toner bin and can open and close the toner inlet;

the powder bin box can be matched with the powdered ink bin relatively movably, and a powder outlet which can be matched with the powder inlet is formed in the powder bin box;

the powder outlet piece is provided with a first opening matched with the powder outlet, the powder outlet piece is rotatably arranged in the powder bin box, and the first opening can be overlapped with the powder outlet along with the rotation of the powder outlet piece so as to open the powder outlet or the first opening is staggered with the powder outlet so as to close the powder outlet;

the linkage piece is connected to the cover plate;

and the transmission mechanism is in transmission connection with the powder outlet piece and the linkage piece, and the transmission mechanism can drive the first opening of the powder outlet piece to move to the position of the powder outlet along with the closing action of the cover plate.

In order to guarantee the leakproofness of powder storehouse box, avoid the powdered ink to fall out the powder storehouse box in the installation space of play powder piece, be provided with in the powder storehouse box and match in the installation cavity of play powder piece activity, it is equipped with sealed the pad to inlay between the chamber wall of powder piece and installation cavity, the position that corresponds to first trompil on the play powder piece on the seal pad is provided with the second trompil.

Simple structure ground, drive mechanism includes drive plate and reset spring, the drive plate is connected on the outer tip of play powder piece, reset spring connects on the drive plate and has the trend that the transmission plate was suppressed to linkage direction pivoted.

Conveniently install ground, the tip of going out powder spare extends to powder storehouse box outward and has the spliced pole, the spacing connection of driving plate is on the spliced pole, still fixed cover is equipped with the installation cover on the spliced pole, reset spring is torsional spring and both ends and connects respectively on installation cover and driving plate.

In order to guarantee the reset position of the transmission piece and further guarantee that the transmission piece can trigger the transmission piece to act, a limiting rod for limiting the reset position of the transmission piece is arranged on the side wall of the end part of the powder bin box.

In order to improve the leakproofness of powder outlet, swing joint has the ability to open and close on the powder storehouse box the second lid of powder outlet, the second lid passes through on the elastic component rotates the connection powder storehouse box, and the second lid has the trend of closed powder outlet under the effect of elastic component.

In order to automatically open the powder inlet of the toner bin when the toner bin box is assembled and to facilitate use, the first cover body can be arranged on the toner bin in a limiting sliding manner along the assembling and disassembling direction of the toner bin box, and a pushing piece capable of pushing the first cover body when the toner bin box is installed is arranged on the toner bin box.

The powder bin is simple in structure, the first cover body can be pushed, meanwhile, the butt joint sealing effect between the first cover body and the second cover body is achieved, the pushing piece is a sealing piece which is arranged on the matching surface of the powder bin box corresponding to the powder outlet, and a third opening is formed in the position, corresponding to the powder outlet, of the sealing piece.

In order to ensure the connection reliability between the powder bin box and the printer shell and provide guidance for the installation of the powder bin box, a shell is arranged outside the powder bin box, and a notch for the linkage piece to pass through is formed in the shell;

the powder bin comprises a shell and is characterized in that clamping pieces are arranged on the outer surfaces of two ends of the shell, connecting pieces are arranged on the inner surface of the shell corresponding to the positions of the clamping pieces, and clamping grooves capable of allowing the clamping pieces to be placed in are formed in the connecting pieces along the taking and placing direction of the powder bin box.

In order to avoid the powder storehouse box to deviate from in the use, guarantee this powder storehouse structural installation's fastness, the user of being convenient for simultaneously targets in place to the installation of powder storehouse box, be provided with the locating part on the connecting piece, locating part elastic connection just has the trend to the draw-in groove direction suppress on the locating part, have on the locating part and can stretch into to the draw-in groove in and spacing portion of spacing joint spare.

Compared with the prior art, the invention has the advantages that: the connection structure of the split type powder bin is independent of the toner cartridge main body, and is additionally provided with the powder bin box for conveying the toner powder to the toner bin. The powder bin box has low requirement on powder filling, is convenient for users to fill powder independently, and has low cost even if the powder bin box is directly replaced. And through the cooperation action of first lid, second lid, play powder piece linkage and drive mechanism, can guarantee that the powdered ink storehouse box just realizes the intercommunication with the powdered ink storehouse of selenium drum main part after the butt joint, so avoided the condition that the powdered ink is unrestrained or pollutes the powdered ink among the assembling process, can guarantee printing quality.

Drawings

Fig. 1 is an installation diagram of a connection structure of a split type powder bin in a machine shell in the embodiment of the invention.

Fig. 2 is a partial perspective view of a connecting structure of the split type powder bin in the embodiment of the invention.

Fig. 3 is a partial structural view of fig. 2.

Fig. 4 is an exploded perspective view of fig. 2.

Fig. 5 is another view of fig. 4.

FIG. 6 is a sectional view showing a state where the toner hopper and the toner hopper are butted against each other in the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

1-6, the connection structure of the split powder bin in this embodiment is disposed in a printer housing 100 having a cover plate 101, and includes a toner bin 1, a first cover 2, a powder bin box 3, a second cover 4, a powder outlet member 5, a linkage member 9, and a transmission mechanism 6.

Wherein toner storehouse 1 an organic whole is connected in toner cartridge main part 10, and toner cartridge main part 10 then is the toner cartridge subassembly among the prior art, including parts such as sensitization drum, developer roll, transfer roller, the roller that charges, and toner storehouse 1 is linked together with the developer roll, and the toner in toner storehouse 1 can be even distribution on the developer roll under the effect of scraper.

In order to facilitate the installation of selenium drum main part 10 and powder storehouse box 3 in printer casing 100, can correspond on printer casing 100 and set up a breach, and apron 101 then can cover the mode of installing through the joint on this breach, apron 101 in this embodiment is connected on casing 100 through the pivoted mode, and be provided with the buckle on the inside wall of apron 101, the matching is provided with the trip structure with the buckle in casing 100, and then realizes the switching of apron 101 through the cooperation of buckle and trip.

The toner bin 1 is provided with a toner inlet 11, and the toner in the toner bin box 3 can enter the toner bin 1 through the toner inlet 11. The first lid body 2 is movably attached to the toner hopper 1 to open and close the toner inlet 11. When the powder bin box 3 is not assembled in use, the first cover body 2 covers the powder inlet 11, so that the pollution of external impurities to the powder bin 1 is avoided, the quality of the ink powder in the powder bin 1 is ensured, and the printing effect is further ensured.

The movable structure of the first cover 2 can be any mechanism capable of opening and closing the powder inlet 11 in the prior art, such as a flip structure. In this embodiment, the first cover 2 is slidably connected, and the first cover 2 is slidably disposed on the toner hopper 1 in the direction of attaching and detaching the toner hopper case 3. Specifically, the toner hopper 1 is provided with sliding grooves 12 on both sides of the toner inlet 11 along the dismounting direction of the toner hopper case 3, and the first cover 2 is slidably limited in the sliding grooves 12. Thus, the first cover 2 is prevented from being lost, and the opening and closing operation of the first cover 2 can be guided.

In this embodiment, the toner cartridge 3 can be movably coupled to the upper portion of the toner cartridge 1, such that the lower surface of the toner cartridge 3 and the upper surface of the toner cartridge 1 respectively form a matching surface of the toner cartridge 3 and a matching surface of the toner cartridge 1. The toner hopper cartridge 3 can be detached and attached independently of the toner cartridge main body 10 in the printer casing 100 and can be butted against or separated from the toner hopper 1. The toner inlet 11 of the toner hopper 1 is opened on the matching surface of the toner hopper 1, that is, on the upper surface of the toner hopper 1, so that the toner can fall into the toner hopper 1 by self weight.

The interior of the toner cartridge 3 has a cavity for accommodating toner. The hopper case 3 is constituted by an upper case body and a lower case body which are mutually butted, in order to facilitate assembling and opening of the replenishment toner. The matching surface of the powder bin box 3 is provided with a powder outlet 31 which can be matched with the powder inlet 11, and after the powder bin box 3 is assembled on the toner bin 1, the powder outlet 31 on the powder bin box 3 is opposite to the powder inlet 11 on the toner bin 1 in a sealing way, so that the powder bin box 3 is communicated with the toner bin 1. In order to facilitate the smooth output of the toner in the toner hopper box 3 from the toner outlet 31, a conveying mechanism for conveying the toner may be provided in the toner hopper box 3, and the conveying mechanism may be a conveying member capable of moving the powder material in the prior art.

The second cover 4 is movably connected to the powder bin box 3 to open and close the powder outlet 31, and the second cover 4 may be connected in a rotating manner or a sliding manner according to specific requirements. In this embodiment, the second cover 4 is connected to the powder bin box 3 in a rotatable manner. Specifically, the second cover 4 is rotatably connected to the powder bin box 3 by the elastic member 41, and the second cover 4 has a tendency to close the powder outlet 31 by the elastic member 41. In order to further increase the sealing performance of the powder outlet 31 when the second cover 4 covers the powder outlet and the sealing performance of the communication between the powder outlet 31 and the powder inlet 11 when the powder outlet 31 is butted, a sealing sheet is arranged on the matching surface of the powder bin box 3 corresponding to the powder outlet 31, and a third opening 81 is formed on the sealing sheet corresponding to the powder outlet 31. The position of the sealing sheet is lower than the matching surface of the powder bin box 3, and the sealing sheet is used as a pushing piece 8 for pushing the first cover body 2 to slide when the powder bin box 3 is installed, so that the butt joint operation of the powder outlet 31 and the powder inlet 11 in the assembling process of the powder bin box 3 can be simplified. According to needs, can also cooperate the installation to suppress first lid 2 and have the spring of closed powder inlet 11 trend on powdered ink storehouse 1, make things convenient for first lid 2 can automatic re-setting and cover powder inlet 11 when powder storehouse box 3 dismantles.

The second cover body 4 is provided with an acting part 42 which protrudes out of the matching surface of the powder bin box 3 and can be pushed by the toner bin 1 when the powder bin box 3 is assembled, so that when the powder bin box 3 is assembled on the toner bin 1, the second cover body 4 can be opened along with the assembling action of the powder bin box 3, and correspondingly, the butt joint operation of the powder outlet 31 and the powder inlet 11 in the assembling process of the powder bin box 3 is also simplified.

In addition, in order to avoid that the toner in the toner hopper case 3 drops due to the quick opening of the first cover body 2 when the toner hopper case 3 is assembled, the powder outlet member 5 is rotatably provided in the toner hopper case 3 at a position corresponding to the powder outlet port 31, and the rotational arrangement can reduce the influence of the powder outlet member 5 on the toner output. The powder outlet 5 is provided with a first opening 51 matched with the powder outlet 31.

In order to ensure the sealing performance of the powder bin and avoid that the powder discharging part 5 drives the toner to scatter out of the powder bin box 3 when acting, in the embodiment, an installation cavity 32 matched with the activity of the powder discharging part 5 is specially arranged in the powder bin box 3, a sealing gasket 7 is embedded between the powder discharging part 5 and the cavity wall of the installation cavity 32, and a second opening 71 is arranged on the sealing gasket 7 corresponding to the position of the first opening 51 on the powder discharging part 5. In this embodiment, sealed 7 of filling up adopts the mode parcel that closely the cover was established outside play powder 5, and in the action in-process of play powder 5, sealed 7 of filling up can move along with play powder 5, and can guarantee the leakproofness between play powder 5 and the installation cavity 32.

Since the powder discharging member 5 is rotatably disposed in the powder hopper box 3, the mounting cavity 32 is a cylindrical cavity and is disposed at an end of the powder hopper box 3. The powder outlet member 5 in this embodiment is generally cylindrical, the powder outlet member 5 has a cavity therein and is open to one end of the inner side of the powder bin box 3, and the first opening 51 is formed in the peripheral wall of the powder outlet member 5. Go out powder 5, sealed 7 can carry out synchronous rotation under drive of drive mechanism 6, and then make first trompil 51, second trompil 71 overlap with powder outlet 31 in order to open powder outlet 31 or first trompil 51, second trompil 71 and powder outlet 31 are crisscross and close powder outlet 31.

Drive mechanism 6 includes driving plate 61, reset spring 62 and installation cover 63, the tip of play powder spare 5 extends to powder storehouse box 3 and has extended spliced pole 52, the spacing connection of driving plate 61 is on spliced pole 52 and realize going out the outer epaxial connection of powder spare 5, specifically, can set up the periphery shape that the position of driving plate 61 was established to the corresponding cover of spliced pole 52 to three horn shapes, it is corresponding to be provided with three corner holes on driving plate 61, and then driving plate 61 establishes on spliced pole 52 through three corner hole covers, and then can drive spliced pole 52, go out powder spare 5 synchronous rotation. The mounting sleeve 63 is sleeved on the connecting column 52 and is located on the inner side of the driving strap 61. The return spring 62 is a torsion spring, and two ends of the return spring 62 are respectively connected to the mounting sleeve 63 and the driving plate 61, and the return spring 62 has a tendency of urging the driving plate 61 to rotate toward the linkage member 9. In order to limit the reset position of the transmission piece 61, a limiting rod 34 for limiting the reset position of the transmission piece 61 is arranged on the side wall of the end part of the powder bin box 3, and the position of the limiting rod 34 can ensure that the transmission piece 61 can be in linkage action with the linkage piece 9 after being reset.

And the linkage piece 9 is connected on the inner side wall of the cover plate 101, the linkage piece 9 in the embodiment is a linkage plate, the linkage piece 9 extends towards the position of the transmission mechanism 6 in the powder bin box 3, and the linkage piece 9 is in transmission connection with the transmission mechanism 6. After this connection structure in split type powder storehouse finishes the installation in printer casing 100, close apron 101, then linkage 9 is close to drive mechanism 6 along with apron 101, and linkage 9 can promote the driving plate to rotate after contacting the driving plate, and then drives out powder 5, sealed synchronous rotation of pad 7 to make first trompil 51, second trompil 71 overlap with powder outlet 31 in order to open powder outlet 31. When powder storehouse box 3 is taken out to needs, apron 101 is opened, then linkage 9 releases the support to the driving plate and presses, and then the driving plate rotates under reset spring 62's effect and resets to the position of gag lever post 34, and corresponding drive goes out powder 5, sealed synchronous rotation of pad 7 for go out powder mouth 31 looks alternate and close powder mouth 31, so the interior residual powdered ink of powder storehouse box 3 can not spill, has guaranteed that powder storehouse box 3 takes out the in-process powdered ink that can not drop.

In addition, in order to protect the powder bin box 3, the abutting position of the powder outlet 31 and the powder inlet 11 is ensured to be accurate, and meanwhile, the stability of the installation of the powder bin box 3 in the machine shell 100 is ensured. A housing 200 is provided outside the powder hopper 3, and the housing 200 is mounted in the printer housing 100 together with the powder hopper 3. The housing 200 is opened downward, and the housing 200 is fixedly connected to the upper case of the powder hopper 3. The housing 200 is provided with a slot 201 through which the link 9 passes.

The outer surfaces of both ends of the housing 200 are provided with engaging members 202 which can be engaged with the casing 100. The inner surface of the casing 100 is provided with a connecting member 300 corresponding to each of the engaging members 202, and the connecting member 300 is provided with a slot 301 for receiving the engaging member 202 along the picking and placing direction of the powder bin 3. The engaging groove 301 can also provide a guide for assembling the powder bin box 3, the engaging member 202 in this embodiment extends in the taking and placing direction of the powder bin box 3 and is in a long strip shape, and the engaging groove 301 is also in a long strip shape and has a length greater than that of the engaging member 202. The connecting member 300 is provided with a limiting member 400, the limiting member 400 is elastically connected to the limiting member 400 and tends to be pressed toward the slot 301, and the limiting member 400 is provided with a limiting portion 401 capable of extending into the slot 301 to limit the engaging member 202. In this embodiment, after the powder storehouse box 3 state targets in place, the spacing portion 401 of joint piece 202 then suppress to the rear portion of joint piece 202, so realized the limiting displacement to joint piece 202, avoided the condition that the shell 200 appears moving back under the effect of little external force, guaranteed the stability in the powder storehouse box 3 course of operation. When the powder bin box 3 needs to be taken out, the outer shell 200 is pulled outwards with force, the clamping piece 202 can overcome the elastic pressure of the limiting piece 400, and then in the process that the outer shell 200 and the powder bin box 3 are pulled outwards, the clamping piece 202 slides along the guide of the clamping groove 301 until the powder bin box 3 is taken out of the machine shell 100.

The working process of the split powder bin connecting structure is as follows. When the powder bin box 3 is not assembled, the first opening 51 on the powder outlet 5 and the powder outlet 31 are in a staggered state, and at the moment, the situation that the toner drops from the powder outlet 31 cannot occur. When the powder bin box 3 is assembled, the clamping piece on the shell is aligned with the clamping groove on the connecting piece to be pushed. When the toner box 3 is pushed forward, the acting part 42 on the second cover 4 will abut against the side wall of the toner box 1, and the second cover 4 rotates to be opened along with the assembly of the toner box 3 in the process of continuous pushing. Meanwhile, the sealing plate also abuts against the side surface of the first cover body 2 to push the first cover body 2 to move along the chute 12, so that the powder inlet 11 is gradually opened. When the powder bin box 3 is assembled in place on the toner bin 1, the first cover body 2 is also completely opened under the action of the sealing plate, that is, the powder inlet 11 is completely opened. At the moment, the powder inlet 11 is opposite to the powder outlet 31, and the sealing sheet can ensure the sealing performance of the periphery of the butt joint of the powder inlet 11 and the powder outlet 31, so that the printer is prevented from being polluted due to the fact that the powder falls outside in the toner conveying process. Then the cover plate 101 is closed, the linkage piece 9 connected to the cover plate 101 pushes the transmission piece 61 to rotate, so that the first opening hole 51, the second opening hole 71 and the powder outlet 31 are overlapped to open the powder outlet 31, and the communication between the powder bin box 3 and the toner bin 1 is realized. At this time, the printer can start printing.

The connection structure of the split type powder bin is additionally provided with the powder bin box 3 which is used for conveying the toner powder to the toner bin 1 independently of the toner cartridge main body 10, and when the toner cartridge is used, the toner powder required by the toner cartridge main body 10 in the working process can be conveyed only by butting the toner bin box 1 with the toner cartridge main body 10. This powder storehouse box 3 requires lowly to irritating the powder, and convenience of customers independently irritates the powder, even directly change powder storehouse box 3, its cost is also low. And through the cooperation action of first lid 2, second lid 4, play powder 5 linkage 9 and drive mechanism 6, can guarantee that powder storehouse box 3 just realizes the intercommunication with the toner storehouse 1 of toner cartridge main part 10 after the butt joint, so avoided the condition that the powdered ink spills or pollutes the powdered ink among the assembling process, can guarantee printing quality.

Claims

1. A connection structure of split type powder storehouse, sets up in printer casing (100) that has apron (101), its characterized in that: comprises that

The toner cartridge comprises a toner bin (1) which is integrally connected to a toner cartridge main body, wherein a toner inlet (11) is formed in the toner bin (1);

the first cover body (2) is movably connected to the toner bin (1) and can open and close the toner inlet (11);

the powder bin box (3) can be matched with the toner bin (1) in a relatively movable manner, and a powder outlet (31) matched with the powder inlet (11) is formed in the powder bin box (3);

the powder outlet piece (5) is provided with a first opening (51) matched with the powder outlet (31), the powder outlet piece (5) is rotatably arranged in the powder bin box (3), and the first opening (51) can be overlapped with the powder outlet (31) along with the rotation of the powder outlet piece (5) so as to open the powder outlet (31) or the first opening (51) is staggered with the powder outlet (31) to close the powder outlet (31);

a linkage (9) connected to the cover plate (101);

the transmission mechanism (6) is in transmission connection with the powder outlet piece (5) and the linkage piece (9), and the transmission mechanism (6) can drive the first open hole (51) of the powder outlet piece (5) to move to the position of the powder outlet (31) along with the closing action of the cover plate (101).

2. The connecting structure of the split powder bin according to claim 1, wherein: be provided with in powder storehouse box (3) and match in installation cavity (32) of going out powder piece (5) activity, it is equipped with sealed pad (7) to inlay between the chamber wall of powder piece (5) and installation cavity (32), the position that corresponds first trompil (51) on sealed pad (7) is provided with second trompil (71) on going out powder piece (5).

3. The connecting structure of the split powder bin according to claim 1, wherein: the transmission mechanism (6) comprises a transmission piece (61) and a return spring (62), the transmission piece (61) is connected to the outer end of the powder discharging piece (5), and the return spring (62) is connected to the transmission piece (61) and has the tendency that the transmission piece (61) is pressed to rotate towards the direction of the linkage piece (9).

4. The connecting structure of the split powder bin according to claim 3, wherein: go out the tip of powder spare (5) and extend spliced pole (52) to powder storehouse box (3), spacing connection of driving piece (61) is on spliced pole (52), still fixed cover is equipped with installation cover (63) on spliced pole (52), reset spring (62) are connected respectively on installation cover (63) and driving piece (61) for torsional spring and both ends.

5. The connecting structure of the split powder bin according to claim 3, wherein: and a limiting rod (34) for limiting the reset position of the transmission piece (61) is arranged on the side wall of the end part of the powder bin box (3).

6. The connecting structure of the split type powder bin according to any one of claims 1 to 5, wherein: powder storehouse box (3) go up swing joint and have and open and close second lid (4) of powder outlet (31), second lid (4) rotate through the elastic component and connect on powder storehouse box (3), and second lid (4) have the trend of closed powder outlet (31) under the effect of elastic component.

7. The connecting structure of the split type powder bin according to any one of claims 1 to 5, wherein: the first cover body (2) can be arranged on the toner bin (1) in a limiting sliding manner along the dismounting direction of the toner bin box (3), and a pushing piece (8) capable of pushing the first cover body (2) when the toner bin box (3) is mounted is arranged on the toner bin box (3).

8. The connecting structure of the split powder bin according to claim 7, wherein: the pushing piece (8) is provided with a sealing sheet which is arranged on the matching surface of the powder bin box (3) corresponding to the powder outlet (31), and a third opening (81) is formed in the position of the sealing sheet corresponding to the powder outlet (31).

9. The connecting structure of the split type powder bin according to any one of claims 1 to 5, wherein: a shell (200) is arranged outside the powder bin box (3), and a notch (201) through which the linkage piece (9) passes is formed in the shell (200);

be provided with joint spare (202) on the surface at shell (200) both ends, be provided with connecting piece (300) corresponding to the position of each joint spare (202) on the internal surface of casing (100), draw-in groove (301) that can supply joint spare (202) to put into are provided with along the direction of getting of powder storehouse box (3) on connecting piece (300).

10. The connecting structure of the split powder bin according to claim 9, wherein: be provided with locating part (400) on connecting piece (300), locating part (400) elastic connection just has the trend to draw-in groove (301) direction suppress on locating part (400), have spacing portion (401) that can stretch into in draw-in groove (301) and spacing joint spare (202) on locating part (400).