CN212933244U

CN212933244U - Powder box

Info

Publication number: CN212933244U
Application number: CN202022198304.7U
Authority: CN
Inventors: 黄乐; 黄斌; 熊涛
Original assignee: Huiwei Corp
Current assignee: Huiwei Corp
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-09
Anticipated expiration: 2030-09-29

Abstract

The utility model provides a powder box, include the shell with set up in the end cover of shell tip, be provided with the count gear on the shell end wall, self axial displacement can be followed when the count gear rotates for the first time, with the briquetting of the coaxial setting of count gear, be provided with on the briquetting can with count gear matched with second cooperation portion, can with the last detection mechanism matched with of printing apparatus press the splenium and be used for the restriction briquetting antiport spacing portion, the rotation process of count gear taking place axial displacement passes through second cooperation portion drives the briquetting rotates together. The utility model discloses an increase the briquetting with the count gear interlock, when the count gear accomplishes new powder box detection and axial when moving outward at the rotation in-process, can drive the briquetting and rotate rather than together, make the briquetting can with the detection mechanism on the printing apparatus to the contact, trigger the detected signal that the powder box has installed, improved the compatibility and the commonality of powder box.

Description

Powder box

Technical Field

The utility model relates to a powder box that uses among the image forming device.

Background

An image forming apparatus such as a laser printer, a copier, or the like generally has an image processing unit and a developing unit, and develops an electrostatic latent image formed on the image processing unit with a developer such as toner supplied from the developing unit to form a visible image on a medium such as paper. The developing unit includes a cartridge detachably loaded in the image forming apparatus main body, and the cartridge generally includes a housing, a photosensitive drum, a developing roller, a chamber for accommodating a developer, and the like.

In some printing devices, there is a detection mechanism that detects whether the compact has been loaded into the machine, and in order to cooperate with the detection mechanism on the printing device, there is also a corresponding trigger mechanism on the compact, which triggers a signal to detect the compact by touching the detection mechanism on the printing device. The more commonly used trigger mechanism on the powder box is provided with a conductive support or a gear end cover, and when the powder box is installed in the printing equipment, the conductive support or the gear end cover presses a detection mechanism of the printing equipment to trigger a powder box detection signal. The detection mechanism that also some powder boxes utilize the structure on the count gear to push down on the printing apparatus triggers powder box detected signal, but some count gears can take place axial displacement in order to realize the purpose that whether the detection powder box is new powder box in the printing apparatus of packing into back, make the powder box no longer contact with the detection mechanism on the printing apparatus, like the processing box that the patent is disclosed in the chinese utility model patent of 201921676528.5. The cartridges adopting such a counter gear structure cannot be applied to these printing apparatuses, so that compatibility of the cartridges is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compatible good powder box.

In order to achieve the above object, the present invention adopts the following technical solutions:

the utility model provides a powder box, include the shell with set up in the end cover of shell tip, be provided with the count gear on the shell end wall, self axial displacement can be followed when the count gear rotates for the first time, with the briquetting of the coaxial setting of count gear, be provided with on the briquetting can with count gear matched with second cooperation portion, can with the last detection mechanism matched with of printing apparatus press the splenium and be used for the restriction briquetting antiport spacing portion, the rotation process of count gear taking place axial displacement passes through second cooperation portion drives the briquetting rotates together.

As a specific implementation manner of the powder box of the utility model, be provided with on the count gear with the first cooperation portion of second cooperation portion complex, first cooperation portion is protruding muscle, the second cooperation portion is outstanding the rib of briquetting, when count gear axial displacement is accomplished, first cooperation portion with the second cooperation portion breaks away from the cooperation.

As a specific implementation manner of the utility model discloses the powder box, spacing portion for outstanding in the outside elastic arm that extends of briquetting, be provided with a arch on the end wall of shell, the briquetting rotates and drives spacing portion process protruding back, spacing portion can block in protruding.

As a specific embodiment of the powder box of the present invention, a fixing pin is provided on the end wall of the housing, the counting gear and the pressing block are provided on the fixing pin.

As a specific embodiment of the powder box of the present invention, the pressing block is located between the counter gear and the end wall of the housing.

As a specific embodiment of the powder box of the present invention, the pressing portion is a rib protruding from the pressing block.

According to the above technical scheme, the utility model discloses an increase the briquetting with the count gear interlock, when the count gear accomplishes new powder box detection and axial when moving outward rotating the in-process, can drive the briquetting and rotate rather than together, make the briquetting can with the last detection mechanism of printing apparatus to the contact, trigger the detected signal that the powder box has installed for the powder box that adopts the count gear structure that rotates the in-process and can axial displacement also can realize the detection of powder box installation through the briquetting, has improved the compatibility and the commonality of powder box.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic view of a part of a powder box according to an embodiment of the present invention;

fig. 2 is a schematic view of a partially exploded structure of a powder box according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a briquette according to an embodiment of the present invention;

fig. 4a to 4c are schematic position diagrams of the compact loading machine and the counter gear and the pressing block in different states after the loading machine.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, wherein for convenience of illustration, the drawings showing the structure of the device are not to scale and are partially enlarged, and the drawings are only examples, which should not limit the scope of the invention. It should be noted that the drawings are in simplified form and are not to precise scale, which is only used for the purpose of facilitating and clearly assisting in the description of the embodiments of the present invention.

As shown in fig. 1 and 2, the powder cartridge of the present embodiment includes a housing 1, a photosensitive drum (not shown), a developing roller (not shown), a powder hopper for containing a developer, and the like are provided in the housing 1, and an end cap 2 is provided outside an end portion of the housing 1. Be provided with count gear 3 on the end wall of shell 1, count gear 3 can with other gear synchronous revolution on the powder box, for example agitator gear, sensitization drum gear etc. through the number of turns of rotation of record count gear 3, can judge the surplus powder volume in the powder box. The counting gear 3 of the embodiment is meshed with a transmission gear 4, and synchronously rotates with the stirring frame gear through the transmission gear 4.

The counter gear 3 is centrally provided with a through hole (not numbered) extending in its axial direction for engagement with a fixing pin 5 on the end wall of the housing 1, thereby mounting the counter gear 3 on the end wall of the housing 1. The counting gear 3 of this embodiment is a full-tooth gear, that is, the circumferential outer edge of the counting gear 3 is evenly distributed with meshing teeth in an end-to-end manner. The counting gear 3 is provided with a guide support part 3a, and the guide support part 3a is used for matching with a gear moving guide part on the end wall of the shell 1, so that the counting gear 3 can move outwards along the axial direction after being installed. The counting gear 3 is further provided with a first matching portion 3b for matching with the pressing block 6 to drive the pressing block 6 to rotate by a certain angle, and the first matching portion 3b is a convex rib.

The pressing piece 6 and the counter gear 3 are mounted on the same fixing pin 5, and the pressing piece 6 of the present embodiment is located between the counter gear 3 and the end wall of the housing 1. The pressing block 6 is centrally provided with a through hole extending in the axial direction thereof for engagement with the fixing pin 5 on the end wall of the housing 1, thereby being mounted on the fixing pin 5 together with the counter gear 3. As shown in fig. 3, the pressing block 6 is provided with a second matching portion 6a matching with the first matching portion 3b of the counting gear 3, the second matching portion 6a of the embodiment is a rib protruding out of the pressing block 6, when the counting gear 3 rotates to a certain position, the first matching portion 3b on the pressing block can contact with the second matching portion 6a on the pressing block 6, and the pressing block 6 is driven to rotate by the continuous rotation of the counting gear 3. The pressing block 6 is also provided with a pressing part 6b which can be matched with a detection mechanism on the printing equipment and a limiting part 6c which can prevent the pressing block 6 from reversely rotating, and the limiting part 6c can be matched with a protrusion 1-2 arranged on the end wall of the shell 1, so that the pressing block 6 can not reversely rotate after rotating along with the counting gear 3. The limiting portion 6c of the present embodiment is an elastic arm protruding from the pressing block 6 and extending outward. The pressing part 6b is a rib protruding out of the pressing block 6 in the radial direction, and after the pressing part 6b is contacted with a detection mechanism on printing equipment, a detection signal is triggered to indicate that the powder box is installed.

As shown in fig. 2, a gear movement guide part 1-1 is provided on an end wall of the housing 1, the gear movement guide part 1-1 protrudes from the end wall of the housing 1, a projection of the gear movement guide part 1-1 on the end wall of the housing 1 may be a circular arc or a circle, and a projection of the gear movement guide part 1-1 on the end wall of the housing 1 in this embodiment is an arc. The gear movement guide portion 1-1 may contact an inner end surface or a guide support portion 3a of the counter gear 3, thereby supporting the counter gear 3 during rotation of the counter gear 3. The gear moving guide part 1-1 at least comprises a first guide section 1-1a and a second guide section 1-1b which are sequentially connected, wherein the first guide section 1-1a is positioned in front of the second guide section 1-1b, namely when the guide support part 3a rotates along with the counting gear 3, the first guide section 1-1a passes through and then the second guide section 1-1b passes through. The height of the first guide section 1-1a increases from front to back (the distance between the end surface of the guide section and the end wall of the housing), and the height of the highest point of the first guide section 1-1a is the same as the height of the second guide section 1-1 b. In other embodiments, the counting gear moving guide part may also be a circular ring structure having a section of a slot or a groove, when the counting gear is in an initial state, the tail part of the guide support member on the counting gear moving guide part is located in the slot (or the groove) of the counting gear moving guide part, and after the counting gear starts to rotate, the counting gear moves out of the slot (or the groove) along the first guide section, so that the counting gear moves outwards.

The following describes the operation process of the counting gear and the pressing block during the loading process of the compact according to the present invention with reference to fig. 4a to 4c, and the dotted line in fig. 4a to 4c represents the detection mechanism on the printing device.

After the powder box is loaded into the printing equipment, the counting gear 3 is at an initial position, and at this time, the guide supporting part of the counting gear 3 is not in contact with the first guide section 1-1a of the gear moving guide part 1-1, and does not move axially;

as shown in fig. 4a, during the rotation and movement of the counter gear 3 along the first guide section 1-1a, the counter gear 3 moves axially outward, i.e. away from the end wall of the housing 1;

as shown in fig. 4b, during the rotation of the counter gear 3, the first matching part 3b of the counter gear 3 will contact with the second matching part 6a on the pressing block 6, and after the first matching part 3b and the second matching part 6a contact together, the counter gear 3 will continue to rotate, and will push the pressing block 6 to rotate together;

as shown in fig. 4c, when the counter gear 3 leaves the first guide section and moves to the second guide section, the counter gear 3 does not move axially any more, and the first matching portion 3b of the counter gear 3 is separated from the second matching portion 6a of the pressing block 6 due to the outward axial movement of the counter gear, so that the pressing block 6 does not rotate any more, and at this time, the limiting portion 6c of the pressing block 6 can be clamped on the protrusion 1-2 after moving past the protrusion 1-2 of the end wall of the housing 1, so that the pressing block 6 cannot rotate reversely, and the pressing portion 6b of the pressing block 6 presses on the detection mechanism of the printing apparatus, triggering the detection signal, which indicates that the cartridge is installed.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a powder box, include the shell with set up in the end cover of shell tip, be provided with the count gear on the shell end wall, can follow self axial displacement when the count gear rotates for the first time, its characterized in that still includes:

the counting gear is arranged on the printing device and comprises a pressing block and a limiting portion, wherein the pressing block is coaxially arranged with the counting gear, the pressing block is provided with a second matching portion matched with the counting gear, a pressing portion matched with a detection mechanism on the printing device and a limiting portion used for limiting the pressing block to rotate reversely, and the counting gear drives the pressing block to rotate together through the second matching portion in the rotating process of axial movement.

2. The powder container according to claim 1, characterized in that: the counting gear is provided with a first matching part matched with the second matching part, the first matching part is a convex rib, the second matching part is a rib protruding out of the pressing block, and when the counting gear completes axial movement, the first matching part and the second matching part are disengaged.

3. The powder container according to claim 1, characterized in that: the limiting portion is an elastic arm protruding out of the pressing block and extending outwards, a protrusion is arranged on the end wall of the shell, the pressing block rotates and drives the limiting portion to pass through the protrusion, and the limiting portion can be clamped on the protrusion.

4. The powder container according to claim 1, characterized in that: the end wall of the shell is provided with a fixing pin, and the counting gear and the pressing block are arranged on the fixing pin.

5. The powder container according to claim 4, characterized in that: the pressure block is located between the counter gear and the end wall of the housing.

6. The powder container according to claim 1, characterized in that: the pressing part is a rib protruding from the pressing block in the radial direction.