CN214122689U - Developing box - Google Patents

Abstract

The application relates to the technical field of laser printing equipment, and provides a developing box which comprises a box body, a power device and a detection device; the box body is used for containing developer; the power device is arranged on the side wall of the box body; the detection device is arranged on the side wall of the box body and is in transmission connection with the power device; the detection device comprises a detection piece, a transmission piece and a positioning piece; the detection part and the transmission part are respectively sleeved on the positioning part; the transmission part is respectively in transmission connection with the detection part and the power device and can drive the detection part to rotate around the central line of the positioning part; a guide mechanism is also arranged between the detection piece and the positioning piece; when the detection piece rotates around the positioning piece, the guide mechanism can enable the detection piece to move along the positioning piece, and the detection piece is in transmission connection with the transmission piece in a disconnecting mode. The detection device in the developing box has the advantages of simple structure, high triggering efficiency and capability of reducing the energy consumption of the power device in the developing box.

Description

Developing box

The present application claims priority from the chinese patent application entitled "developer cartridge" filed by the chinese patent office at 25/03/2020 and having application number 202020401369.4, the entire contents of which are incorporated herein by reference.

Technical Field

The application relates to the technical field of laser printing equipment, in particular to a developing box.

Background

The developing cartridge is a detachable component widely used in laser printing apparatuses, and generally includes a developing roller, a power unit, and a detection unit. The power device can be used for driving the developing roller to rotate; the detection device corresponds to the device to be tested in the laser printing equipment, and when the developing box is installed in the laser printing equipment, the detection device can be in contact with the device to be tested in the laser printing equipment to trigger after the printer is started, so that the laser printing equipment can detect the information that the developing box is installed in place, the model number and the like.

However, the detecting device in the developing cartridge in the prior art is generally complex in structure, high in cost and prone to triggering failure when the standby detector is triggered.

Therefore, a developing cartridge which has a simple detection device, is low in cost and can be stably and effectively triggered is urgently needed in the market.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a developing cartridge, which is used to solve the problems that the detecting device of the developing cartridge in the prior art has a complex structure and is prone to triggering failure.

The developing box comprises a box body, a power device and a detection device;

the box body is used for containing developer;

the power device is arranged on the side wall of the box body;

the detection device is arranged on the side wall of the box body and is in transmission connection with the power device;

the detection device comprises a detection piece, a transmission piece and a positioning piece;

the detection part and the transmission part are respectively sleeved on the positioning part;

the transmission part is respectively in transmission connection with the detection part and the power device and can drive the detection part to rotate around the positioning part together;

a guide mechanism is also arranged between the detection piece and the positioning piece;

when the detection piece rotates around the positioning piece, the guide mechanism can enable the detection piece to move along the positioning piece and enable the detection piece to be in transmission connection with the transmission piece.

When this developing cartridge installed printing apparatus, when the power device of developing cartridge carried out drive work, detection device just can be driven simultaneously, and detection piece and driving medium among the detection device rotate around the central line of setting element simultaneously altogether, and the await measuring ware that corresponds in the printing apparatus this moment and set up alright with being measured a lot of effectively trigger response many times to can accurately judge the information that developing cartridge installed in place.

And, in the detection piece around the central line rotation in-process of setting element, the guiding mechanism between detection piece and the setting element can also make the detection piece remove along the setting element, and after the detection piece removed certain distance, the detection piece just with driving medium disconnection transmission connection, power device just no longer drives the detection piece and rotates this moment, also just that detection device no longer consumes power device's mechanical energy.

To sum up, the detection device in the developing box has the advantages of simple structure, low cost, high-efficiency triggering and capability of reducing the energy consumption of the power device in the developing box.

In one possible design, the guide mechanism comprises an external thread and an internal thread which are matched with each other;

one of the external thread and the internal thread is arranged on the outer peripheral wall of the positioning piece, and the other one is arranged on the inner peripheral wall of the detection piece.

Like this when the detection piece suit when the periphery wall of setting element, the internal thread corresponds the cooperation with the external screw thread, and detection piece just forms the transmission mode similar to "screw nut" with the setting element this moment, and detection piece alright realizes rotating around the central line of setting element, moves along the setting element simultaneously, has simple structure, can stably realize rotating around the central line of setting element and simultaneously along the function that the setting element removed.

In one possible design, the detection member is movably connected with the transmission member through a linkage mechanism; the guide mechanism can disconnect the transmission connection between the detection piece and the transmission piece through the linkage mechanism.

The linkage mechanism can be connected with the detection piece and the transmission piece in a movable transmission mode, the detection piece and the transmission piece can be disconnected in a transmission mode when the detection piece moves along the positioning piece in a dynamic mode, the detection piece can be driven to rotate along with the transmission piece, and the detection piece can be disconnected from the transmission piece in a transmission mode under the action of the guide mechanism.

In one possible design, the linkage mechanism includes a plug and a plug hole;

one of the plug-in connector and the plug-in hole is arranged on one side of the detection piece facing the transmission piece, and the other is arranged on one side of the transmission piece facing the detection piece.

When the plug is plugged in the plugging hole, the linkage mechanism connects the detection piece with the transmission piece in a transmission way; when the detection piece moves a certain distance away from the transmission piece under the action of the guide mechanism and the plug connector is not plugged in the plug hole, the linkage mechanism disconnects the detection piece from the transmission piece at the moment, and the detection piece can not rotate synchronously with the transmission piece at the moment. The linkage mechanism is arranged into the plug-in connector and the plug-in hole, and has the advantages of simple structure, stable transmission and convenient disconnection.

In one possible embodiment, the detection element has a trigger;

the trigger part is arranged on one side of the detection piece far away from the box body, and the trigger part can rotate along with the detection piece around the positioning piece.

Therefore, the trigger part can trigger the device to be tested in the printing equipment once every time the trigger part rotates one circle along with the detection piece, and the device to be tested in the printing equipment has the advantages of simple structure and capability of stably triggering the device to be tested.

In one possible design, the trigger part comprises a first trigger part and a second trigger part which are arranged in a protruding way;

the first triggering part and the second triggering part are arranged along the circumferential direction of the detection piece respectively.

When the developing cartridges of two different types are replaced and installed in the printing device, the developing cartridge of the first type can be triggered by the first trigger part, and the developing cartridge of the second type can be triggered by the second trigger part, so that the printing device can detect whether the developing cartridge is installed in place or not, and can judge the different types of the developing cartridges according to different trigger responses.

In one possible design, the first trigger part has a first arc surface extending along the circumferential direction of the detection piece;

the second trigger part is provided with a second arc surface extending along the circumferential direction of the detection piece;

the arc length of the second arc surface is greater than that of the first arc surface.

Therefore, the time of the trigger response of the second trigger part is longer than that of the trigger response of the first trigger part, and whether the first trigger part or the second trigger part triggers a standby detector in the printing equipment can be judged according to the triggering time length.

In one possible design, the box body comprises a first side wall and a second side wall which are arranged oppositely;

a transmission gear set is arranged on one side of the first side wall, which is far away from the box body;

the transmission piece is in transmission connection with the power device through the transmission gear set.

The power device is in transmission connection with the transmission piece through the transmission gear set on the first side wall, and the transmission device has the advantages of being stable in transmission ratio and high in transmission efficiency.

In one possible design, a transmission gear ring is further arranged on one side of the transmission piece, which is close to the box body;

the transmission gear set comprises a first gear and a second gear which have different tooth numbers and are coaxially arranged;

the transmission gear ring can be in meshed transmission with the first gear or the second gear.

Therefore, the transmission gear ring is arranged to be in meshing transmission with the first gear or the second gear, so that the transmission ratio between the transmission part and the transmission gear set can be changed, and the effect of adjusting and changing the rotating speed of the detection part is achieved.

In one possible design, a side of the end cover, which is far away from the box body, is provided with an insertion hole;

one end of the positioning piece is fixedly inserted into the insertion hole.

The positioning piece is connected with the end cover in a mode that one end of the positioning piece is fixedly inserted into the insertion hole, and the positioning piece has the advantages of simple structure and stable installation.

Additional features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

Fig. 1 is a schematic structural view (without an end cap) of a developing cartridge provided in an embodiment of the present application;

fig. 2 is a schematic structural view (including an end cap) of a developing cartridge provided in an embodiment of the present application;

FIG. 3 is an exploded view of a portion of a developing cartridge in another view according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a detecting member and a transmission member in a developing cartridge according to an embodiment of the present disclosure;

FIG. 5 is a schematic view showing another structure of a detecting member in a developing cartridge according to an embodiment of the present application;

FIG. 6 is a partial assembly view of a first construction of a developer cartridge according to an embodiment of the present application;

fig. 7 is a partial assembly view of a second structure of a developing cartridge according to an embodiment of the present application.

Reference numerals:

1-box body;

11-a first side wall;

111-insertion hole

12-a second side wall;

13-end cap;

2-a detection device;

21-a detection member;

211-internal thread;

212-a plug-in connector;

213-a trigger part;

213 a-first trigger;

213 b-a second trigger;

22-a transmission member;

221-a transmission gear ring;

222-a plug hole;

23-a positioning element;

231-external threads;

3-a first gear;

4-second gear.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Next, a specific embodiment of the structure of the developing cartridge according to the embodiment of the present application will be described.

As shown in fig. 1, 2 and 3, the embodiment of the present application provides a developing cartridge detachably mounted to an electrophotographic apparatus, the developing cartridge including a cartridge body 1, a power unit and a detecting unit 2; the box body 1 is used for containing developer; the power device is arranged on the side wall of the box body 1, and the detection device 2 is arranged on the side wall of the box body 1 and is in transmission connection with the power device; wherein, the detection device 2 comprises a detection piece 21, a transmission piece 22 and a positioning piece 23; the detection piece 21 and the transmission piece 22 are respectively sleeved on the positioning piece 23; the transmission piece 22 is respectively in transmission connection with the detection piece 21 and the power device and can drive the detection piece 21 to circularly rotate around the central line of the positioning piece 23; a guide mechanism is also arranged between the detection piece 21 and the positioning piece 23; when the detecting member 21 rotates around the positioning member 23, the guiding mechanism can make the detecting member 21 move along the positioning member 23, and make the detecting member 21 and the transmission member 22 disconnected from transmission connection.

When this developing cartridge installed printing apparatus, when the power device of developing cartridge carried out drive work, detection device 2 just can be driven simultaneously, and detection piece 21 among the detection device 2 and driving medium 22 were around the central line circulation rotation of setting element 23 when jointly, and the await measuring ware that corresponds the setting in the printing apparatus this moment alright be many times by the detection piece 21 trigger response effectively many times to can accurately judge that developing cartridge has installed in place.

Moreover, in the process that the detection piece 21 rotates around the central line of the positioning piece 23, the guide mechanism between the detection piece 21 and the positioning piece 23 can also enable the detection piece 21 to move along the positioning piece 23, and after the detection piece 21 moves for a certain distance, the detection piece 21 is disconnected from the transmission piece 22 in a transmission way, at this time, the power device does not drive the detection piece 21 to rotate, that is, the detection device 2 does not consume mechanical energy of the power device.

The developing box can effectively trigger and respond the detection probe in the electronic imaging device for many times by circularly rotating the detection piece 21 around the central line of the positioning piece 23, and the detection piece 21 can be disconnected with the power device after being triggered for many times, so the detection device in the developing box has the advantages of simple structure, high triggering efficiency and capability of reducing the energy consumption of the power device in the developing box.

In an alternative of this embodiment, the guide mechanism comprises an external thread 231 and an internal thread 211 which are fitted to each other; of the external thread 231 and the internal thread 211, one is provided on the outer peripheral wall of the positioning member 23, and the other is provided on the inner peripheral wall of the detection member 21.

Specifically, as shown in fig. 3, at this time, the external thread 231 in the guiding mechanism is disposed on the outer peripheral wall of the positioning member 23, and the internal thread 211 in the guiding mechanism is disposed on the inner peripheral wall of the detecting member 21, so that when the detecting member 21 is sleeved on the outer peripheral wall of the positioning member 23, the internal thread 211 and the external thread 231 are correspondingly matched, at this time, the detecting member 21 and the positioning member 23 form a transmission manner similar to a "screw nut", and the detecting member 21 can rotate around the central line of the positioning member 23 and simultaneously move along the positioning member 23.

The number of turns of the male screw 231 and the female screw 211 may determine the maximum number of turns of the detecting member 21 around the positioning member 23.

The specific arrangement mode of the guide mechanism has the advantages of simple structure and capability of stably rotating around the central line of the positioning piece 23 and simultaneously moving along the positioning piece 23.

Of course, the above-mentioned guiding mechanism may also be configured as other structures, for example, a spiral groove and a spiral strip, which are respectively disposed on the inner peripheral wall of the detecting member 21 and the outer peripheral wall of the positioning member 23, so that the detecting member 21 can rotate around the central line of the positioning member 23 and move along the positioning member 23.

In an alternative of the present embodiment, the detecting member 21 is movably connected with the transmission member 22 through a linkage mechanism; the guide mechanism can disconnect the detection member 21 from the transmission member 22 by a linkage mechanism.

Specifically, as shown in fig. 4, the detecting member 21 is movably connected to the transmission member 22 through a linkage mechanism, so that when the transmission member 22 rotates around the center line of the positioning member 23 under the driving of the power device, the detecting member 21 can rotate synchronously with the transmission member 22, and when the detecting member 21 moves a certain distance along the positioning member 23 under the action of the guiding mechanism, the linkage mechanism disconnects the detecting member 21 from the transmission member 22 in a transmission manner, so that the detecting member 21 does not rotate any more, and the mechanical energy of the power device is not consumed any more.

The linkage mechanism can movably drive the detection piece 21 and the transmission piece 22 to be connected, and can disconnect the transmission connection between the detection piece 21 and the transmission piece 22 when the detection piece 21 dynamically moves along the positioning piece 23, i.e. the detection piece 21 can be driven to rotate along with the transmission piece 22, and the detection piece 21 can be disconnected from the transmission piece 22 under the action of the guide mechanism.

In an alternative of this embodiment, the linkage includes a plug 212 and a plug hole 222; one of the plug 212 and the plug hole 222 is disposed on a side of the detecting member 21 facing the transmission member 22, and the other is disposed on a side of the transmission member 22 facing the detecting member 21.

Specifically, as shown in fig. 4, the plug 212 in the linkage mechanism is disposed on a side of the detecting element 21 facing the transmission element 22, and the insertion hole 222 in the linkage mechanism is disposed on a side of the transmission element 22 facing the detecting element 21, so that when the plug 212 is inserted into the insertion hole 222, the linkage mechanism connects the detecting element 21 and the transmission element 22 in a transmission manner; when the detecting member 21 moves a certain distance away from the transmission member 22 under the action of the guiding mechanism and the plug 212 is no longer plugged in the plugging hole 222, the linkage mechanism disconnects the detecting member 21 from the transmission member 22 at this time, and the detecting member can no longer rotate synchronously with the transmission member 22 at this time.

The specific arrangement mode of the linkage mechanism has the advantages of simple structure, stable transmission and convenience in disconnection.

Of course, the above-mentioned linkage mechanism may be provided in other forms, such as a coupling clutch, an electromagnetic absorber, and the like.

In an alternative of this embodiment, the detecting member 21 has a trigger portion 213; the trigger part 213 is disposed on a side of the detecting member 21 away from the cassette 1, and the trigger part 213 can rotate around the center line of the positioning member 23 along with the detecting member 21.

Specifically, as shown in fig. 4, since the triggering portion 213 is disposed on a side of the detecting member 21 away from the transmission member 22, the triggering portion 213 can rotate circumferentially around the center line of the positioning member 23 along with the detecting member 21, and thus, the dut in the printing apparatus can be disposed in the circular motion track of the triggering portion 213, and the dut in the printing apparatus can be triggered once when the triggering portion 213 rotates one circle.

The trigger 213 is specifically configured to trigger the dut in the printing apparatus once when the detector 21 rotates once.

In an alternative of the present embodiment, the triggering portion 213 includes a first triggering portion 213a and a second triggering portion 213b provided in a projection; the first trigger portion 213a and the second trigger portion 213b are provided along the circumferential direction of the detector 21.

Specifically, as shown in fig. 5, the triggering portion 213 is specifically configured as a first triggering portion 213a and a second triggering portion 213b which are two protrusions, and the first triggering portion 213a and the second triggering portion 213b are respectively disposed along the circumferential direction of the detecting member 21, so that when the detecting member 21 rotates one turn around the center line of the positioning member 23, the first triggering portion 213a can perform triggering response with the detecting probe in the printing apparatus, the second triggering portion 213b can also perform triggering response with the device under test in the electronic imaging apparatus, and the printer can receive different wavelengths by changing the triggering response of the first triggering portion 213a and the second triggering portion 213b, so that the printing apparatus can not only detect whether the developing cartridge is mounted in place, but also can determine different types of the developing cartridge according to different triggering responses.

In an alternative of the present embodiment, the first trigger portion 213a has a first arc surface extending in the circumferential direction of the detection piece 21; the second trigger portion 213b has a second arc surface extending in the circumferential direction of the detection piece 21; the arc length of the second arc surface is larger than that of the first arc surface.

Specifically, as shown in fig. 5, the arc length of the second arc surface of the second triggering portion 213b is set to be greater than the arc length of the first arc surface of the first triggering portion 213a, so that the triggering response time of the second triggering portion 213b is longer than the triggering response time of the first triggering portion 213a, and the printing device can receive different wavelengths through the triggering time duration, that is, the printing device can correspondingly determine different types of the developing cartridges according to the different wavelengths received by the device under test.

When the developing cartridge is installed in the electronic imaging device, the transmission gear is engaged with the first gear 3 to obtain a rotational driving force, and the detecting member 21 is driven to rotate until the first triggering portion 213a rotates to a position where the detecting member contacts with the electronic imaging device to complete a first collision, then the detecting member 21 rotates to a position where the second triggering portion 213b contacts with the detecting device to realize a second collision, at this time, the threaded hole of the detecting member 21 axially moves along the positioning member 23 to a position where the threaded hole does not match with the positioning member 23, the detecting member 21 is disengaged from the transmission member 22, and the detecting member 21 does not rotate any more. Since the length of the second triggering portion 213b in the rotation direction of the screw hole is long, the contact time between the second triggering portion 213b and the detecting means is also long, so that the electrophotographic apparatus can recognize developing cartridges of different capacities by receiving different wavelengths.

In an alternative of this embodiment, the case 1 includes a first side wall 11 and a second side wall 12 which are oppositely disposed; a transmission gear set is arranged on one side of the first side wall 11, which is far away from the box body 1; the transmission member 22 is in transmission connection with the power device through a transmission gear set. Specifically, as shown in fig. 1, fig. 3, fig. 6 and fig. 7, the first side wall 11 and the second side wall 12 may be a left side wall and a right side wall of the box body 1, the power device is connected to the transmission member 22 through a transmission gear set on the first side wall 11 of the box body 1, and the power device can receive the driving force of the electronic imaging device, so that when the output shaft of the electronic imaging device rotates, the transmission member 22 can rotate under the driving of the transmission gear set, so that the detecting member 21 rotates around the center line of the positioning member 23 to trigger a to-be-detected device in the printing apparatus.

The power device is in transmission connection with the transmission piece 22 through the transmission gear set, and the transmission gear set has the advantages of being stable in transmission ratio and high in transmission efficiency.

In an alternative of this embodiment, a transmission gear ring 221 is further disposed on a side of the transmission member 22 away from the detection member 21, the transmission gear group includes a first gear 3 and a second gear 4 that have different numbers of teeth and are coaxially disposed, and the transmission gear ring 221 can be in meshing transmission with the first gear 3 or the second gear 4.

Specifically, as shown in fig. 3, 6 and 7, the first gear 3 and the second gear 4 may be mounted on the same rotating shaft, and the second gear 4 is closer to the box, and the number of teeth of the first gear 3 may be set to be smaller than the number of teeth of the second gear 4, for example, the first gear 3 is set to be thirty-two teeth, and the second gear 4 is set to be forty-eight teeth, so that the transmission gear 221 is engaged with the first gear 3 or the second gear 4 for transmission, and due to the difference of the transmission ratio, when the power device outputs at a constant speed, the transmission member 22 may rotate at two different rotating speeds, which plays a role of adjusting and changing the rotating speed of the detecting member 21. The time intervals at which the detection protrusions collide with the printer are different, thereby enabling the electronic image forming apparatus to detect developing cartridges of different capacities. The first gear 3 and the second gear 4 may be coaxially integrated with each other or may be coaxially separated from each other.

Specifically, for example, when the transmission gear ring 221 is engaged with the second gear 4, the electronic imaging device starts to detect the developing cartridge, the second gear 4 of the transmission gear ring 221 receives power and transmits the power to the detecting member 21, the detecting member 21 is driven to rotate along with the transmission gear ring 221, the triggering portion 213 of the detecting member 21 reaches a position where the detecting probe of the electronic imaging device contacts, and when the detecting member rotates 360 degrees, the first collision is completed. Similarly, the transmission gear ring 221 drives the detection piece 21 to rotate for the second time, the triggering portion 213 collides the detection probe for the second time, the internal thread 211 hole of the detection piece 21 rotates around the external thread 231 of the positioning piece 23 and moves along the axial direction, when the detection piece 21 rotates 360 degrees again, the triggering portion 213 collides with the detection probe for the third time, the detection piece 21 moves along the axial direction of the positioning piece 23, move to the position where the threaded hole is no longer matched with the thread on the positioning piece 23, so that the plug-in connector 212 and the plug-in hole 222 are separated, and therefore the transmission gear does not transmit power to the detection piece 21 any more. In this process, the trigger 213 on the detection member 21 pushes the detection probe of the electrophotographic apparatus three times, so that the electrophotographic apparatus recognizes the developing cartridge.

When the transmission gear is engaged with the first gear 3. The teeth of the transmission gear are meshed with the first gear 3 to receive the driving force of the first gear 3, and the number of the teeth of the first gear 3 and the second gear 4 is different, so that the rotating speed of the transmission gear is different when the transmission gear is meshed with the first gear 3, and when the transmission gear is meshed with the first gear 3, the rotating speed of the transmission gear is lower than that when the transmission gear is meshed with the second gear 4, so that the electronic imaging device can detect the developing boxes with different capacities.

In an alternative of this embodiment, the side of the first side wall 11 away from the box body 1 is provided with an insertion hole 111; one end of the positioning member 23 is fixedly inserted into the insertion hole 111.

Specifically, as shown in fig. 1 and 2, the insertion hole 111 is preferably a non-circular hole, one end of the positioning element 23 is configured to fit the shape of the insertion hole 111, and the insertion end of the positioning element 23 and the insertion hole 111 may be configured to be in interference fit, so that when the positioning element 23 is inserted into the insertion hole 111, the positioning element and the insertion hole can be stably and rotationally mounted.

Of course, after the detection device 2 is completely installed on the first side wall 11, an end cap 13 may be further installed on the first side wall 11, so that the detection device 2 can be more stably installed on the box body 1.

The installation mode of the positioning piece 23 and the end cover 13 has the advantages of simple structure and stable installation.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. A developing cartridge, characterized by comprising:

a cartridge body (1) for containing a developer;

the power device is arranged on the side wall of the box body (1);

the detection device (2) is arranged on the side wall of the box body (1) and is in transmission connection with the power device;

wherein the detection device (2) comprises a detection piece (21), a transmission piece (22) and a positioning piece (23);

the detection piece (21) and the transmission piece (22) are sleeved on the positioning piece (23) respectively;

the transmission piece (22) is in transmission connection with the detection piece (21) and the power device respectively and can drive the detection piece (21) to rotate around the positioning piece (23) together;

a guide mechanism is further arranged between the detection piece (21) and the positioning piece (23);

when the detection piece (21) rotates around the positioning piece (23), the guide mechanism can enable the detection piece (21) to move along the positioning piece (23), and the detection piece (21) is in transmission connection with the transmission piece (22) in a disconnection mode.

2. A developing cartridge according to claim 1, wherein said guide mechanism includes an external thread (231) and an internal thread (211) which are fitted to each other;

one of the external thread (231) and the internal thread (211) is provided on the outer peripheral wall of the positioning member (23), and the other is provided on the inner peripheral wall of the detection member (21).

3. Developing cartridge according to claim 1, wherein the detecting member (21) is drivingly connected to the transmitting member (22) by a linkage mechanism;

the guide mechanism can disconnect the detection piece (21) from the transmission piece (22) in a transmission way through the linkage mechanism.

4. A developing cartridge according to claim 3, wherein said link mechanism includes a plug (212) and a plug hole (222);

one of the plug (212) and the plug hole (222) is disposed on a side of the detection member (21) facing the transmission member (22), and the other is disposed on a side of the transmission member (22) facing the detection member (21).

5. A developing cartridge according to claim 1, wherein said detecting member (21) has a trigger portion (213);

trigger part (213) set up in detection piece (21) keep away from one side of box body (1), just trigger part (213) can follow detection piece (21) winds setting element (23) rotates.

6. A developing cartridge according to claim 5, wherein said trigger portion (213) includes a first trigger portion (213a) and a second trigger portion (213b) provided in a projection;

the first trigger part (213a) and the second trigger part (213b) are respectively arranged along the circumferential direction of the detection piece (21).

7. A developing cartridge according to claim 6, wherein said first trigger portion (213a) has a first arc surface extending in a circumferential direction of said detecting member (21);

the second trigger part (213b) has a second arc surface extending in the circumferential direction of the detection member (21);

the arc length of the second arc surface is greater than that of the first arc surface.

8. Developing cartridge according to claim 1, wherein the cartridge body (1) comprises a first side wall (11) and a second side wall (12) which are oppositely disposed;

a transmission gear set is arranged on one side of the first side wall (11) far away from the box body (1);

the transmission piece (22) is in transmission connection with the power device through the transmission gear set.

9. Developing cartridge according to claim 8, wherein a side of the transmission member (22) close to the cartridge body (1) is further provided with a transmission ring gear (221);

the transmission gear set comprises a first gear (3) and a second gear (4) which have different tooth numbers and are coaxially arranged;

the transmission gear ring (221) can be in meshed transmission with the first gear (3) or the second gear (4).

10. Developing cartridge according to claim 8, wherein the side of the first side wall (11) remote from the cartridge body (1) is provided with an insertion hole (111);

one end of the positioning piece (23) is fixedly inserted into the insertion hole (111).

Images