CN216210499U - Developing box - Google Patents

Abstract

The utility model relates to the technical field of printing consumables, and provides a developing box, which comprises: the shell comprises a main shell and an end cover detachably connected to the main shell, and a detection extension port is formed in the end cover; a driving force receiving assembly provided on the main housing; the detected component is arranged between the outer shell and the end cover and comprises a detected piece and a pushing seat which is connected to the main shell in a rotating mode, the driving force receiving component is connected with the pushing seat and drives the pushing seat to rotate once, the detected piece is connected with the pushing seat or can be connected with the pushing seat, and the pushing seat pushes the detected piece to stretch out from the detection stretching opening. Compared with the prior art, the utility model solves the technical problems of complex detected structure and high production cost of the current developing box, effectively reduces the installation difficulty of the detected structure, and has the advantages of ingenious design, simple and reliable structure.

Description

Developing box

Technical Field

The utility model relates to the technical field of printing consumables, in particular to a developing box.

Background

The developing cartridge is an important component of an image forming apparatus such as a laser printer, an LED printer, and the like. The developing box contains developer for developing and imaging, supplies the developer to the photoreceptor to form an electrostatic latent image, further forms a visible toner pattern on the photoconductor, and transfers or directly prints the toner pattern on a printing medium, thereby realizing the development and imaging of the toner on the printing medium.

Developing box is at the change in-process, need carry out corresponding inspection to developing box's specification, printable volume and whether for new developing box, detect the structure at present, the majority adopts and detects the gear structure, be equipped with on the detection gear with image forming apparatus inside detection mechanism matched with promotion portion, when drive power receiving assembly promotes the detection gear rotation, detect the gear through promotion portion with detection signal transmission to detection mechanism on, and at the continuous outside motion of axial of rotation in-process, and finally break away from drive power receiving assembly. The structure is complex, particularly in the process of designing the detected piece, repeated research and cutting are needed on the mould of the detected piece, the requirement on production precision is very high, and the technical problem that the detection signal cannot be accurately transmitted possibly exists under the condition that the structure has defects or flaws, so that the material cost of the developing box is increased, and the assembly cost of the developing box is also increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a developing box, which solves the technical problems of complex detected structure and high production cost of the existing developing box, effectively reduces the installation difficulty of the detected structure, and has the advantages of ingenious design, simple and reliable structure.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

provided is a developing cartridge including: the shell comprises a main shell and an end cover detachably connected to the main shell, wherein a detection extension port is formed in the end cover; a driving force receiving assembly provided on the main housing; the detected component is arranged between the outer shell and the end cover and comprises a detected piece and a pushing seat which is rotatably connected to the main shell, the driving force receiving component is connected with the pushing seat and drives the pushing seat to rotate once, the detected piece is connected with the pushing seat or can be connected with the pushing seat, and the pushing seat pushes the detected piece to extend out of the detection extending opening.

Compared with the prior art, the developing box at least has the following beneficial effects: the utility model limits the extending direction of the detected piece by using the detecting extending opening, can accurately and outwards push the detecting mechanism, realizes that the detected piece is pushed only once when the pushing seat is driven by the driving force receiving assembly to rotate for one circle or less than one circle, skillfully utilizes the pushing structure to realize the pushing of the detecting piece, effectively reduces the installation difficulty of the detected structure, greatly reduces the production cost, and has simple structure, convenient assembly and reliable structure.

Optionally, a pushing portion is arranged on the pushing seat, the detected piece is movably arranged on the detection extending opening, and the pushing portion pushes the detected piece to extend out of the detection extending opening when the pushing seat rotates.

Optionally, an elastic resetting piece is arranged on the detection extension opening, and the elastic resetting piece is respectively connected with the end cover and the detected piece and enables the detected piece to have a movement trend of retracting from the detection extension opening.

Optionally, a ring guide portion and a blocking portion are arranged on the end cover, the detection extension opening is formed between the ring guide portion and the blocking portion, the detected piece is connected with the pushing seat, and the pushing seat pushes the detected piece to move along the ring guide portion and enable the detected piece to extend out of the detection extension opening.

Optionally, a force application part is arranged on the push seat, the detected piece is connected to the force application part in a turnover mode, the force application part pushes the detected piece to move along the ring guide part and extend out of the detection extension opening, and the detected piece retracts into the detection extension opening through the baffle part in a turnover mode.

Optionally, one end of the ring guide portion, which is close to the detection protrusion opening, is provided with a detection guide surface, and the detection guide surface gradually gets away from the rotation axis of the push seat in the process of being close to the detection protrusion opening.

Optionally, one end of the blocking portion, which is close to the detection extension opening, is provided with a turning guide surface, and the turning guide surface is gradually close to the rotation axis of the pushing seat in the process of being far away from the detection extension opening.

Optionally, the end cap has a through hole to be measured coaxially disposed with the push seat, the push seat is disposed in the through hole to be measured, and the ring guide portion and the blocking portion are disposed on an edge of an orifice of the through hole to be measured.

Optionally, the pushing seat is provided with a connecting toothed ring, the driving force receiving assembly comprises a transmission gear meshed with the connecting toothed ring, and the connecting toothed ring is provided with a tooth missing part capable of being separated from the transmission gear.

Optionally, the main shell is provided with a limiting part, the push seat is provided with a limiting blocking piece, and when the connecting gear ring is separated from the transmission gear, the limiting blocking piece abuts against the limiting part

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

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a developing cartridge provided in one embodiment of the present invention;

fig. 2 is a front view of the developing cartridge provided in fig. 1;

FIG. 3 is a schematic structural diagram of the detected member of the detected assembly provided in FIG. 1 in an initial state;

FIG. 4 is a schematic structural diagram of a detected member of the detected assembly provided in FIG. 1 when transmitting a detection signal;

FIG. 5 is a schematic structural diagram of the detected member of the detected assembly provided in FIG. 1 after transmitting a detection signal;

fig. 6 is a schematic structural view of a developing cartridge provided in another embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

fig. 8 is a front view of the developing cartridge provided in fig. 6;

FIG. 9 is a schematic structural diagram of the detected member of the detected assembly provided in FIG. 6 in an initial state;

FIG. 10 is a schematic view of the detected member of the detected assembly shown in FIG. 6 at the beginning of extension;

FIG. 11 is a schematic view of the inspected piece of the inspected assembly shown in FIG. 6 when fully extended;

FIG. 12 is a schematic structural view of the inspected piece of the inspected assembly provided in FIG. 6 in a folded state;

fig. 13 is a schematic structural view of the developing cartridge provided in fig. 6 with the end cap removed;

fig. 14 is a partially enlarged schematic view of a portion B in fig. 13.

The reference numbers illustrate:

the detection device comprises an outer shell 100, a main shell 110, an end cover 120, a detected through hole 121, a detection extension opening 130, a clamping groove 131, a ring guide part 140, a detection guide surface 141, a blocking part 150, a turnover guide surface 151 and a limiting part 160;

the device comprises a detected component 200, a push seat 210, a push part 211, a force application part 212, a connecting gear ring 213, a tooth missing part 2131, a limit stop piece 214, a detected component 220 and a force receiving part 221;

a driving force receiving assembly 300, a transmission gear 310;

the elastic restoring member 400.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

A developing cartridge provided by an embodiment of the present invention will now be described with reference to the accompanying drawings.

Referring to fig. 1 to 14, a developing cartridge includes an outer casing 100, a driving force receiving assembly 300 and a detected assembly 200, wherein the outer casing 100 includes a main casing 110 and an end cap 120, and the end cap 120 is provided with a detecting protrusion 131. The cap 120 is detachably coupled to one end of the main housing 110, and the driving force receiving assembly 300 and the detected assembly 200 are disposed at the end of the main housing 110. The detected component 200 is arranged between the outer shell 100 and the end cover 120, and comprises a detected piece 220 and a push seat 210 rotationally connected to the main shell 110, a detection extension port 131 on the end cover 120 is located at a position close to the push seat 210, the driving force receiving component 300 is connected with the push seat 210 and drives the push seat 210 to rotate once, the detected piece 220 is connected with the push seat 210 or can be connected with the push seat 210, and the push seat 210 pushes the detected piece 220 to extend out of the detection extension port 131 in the rotation process. The one-time rotation means that the pushing base 210 does not rotate continuously with the driving force receiving assembly 300, and after rotating to a specific position, the pushing base 210 is separated from the driving force receiving assembly 300, and a detachable structure is arranged between the two, and the pushing base 210 pushes the detected object 220 once or continuously for many times under the action of the detachable structure.

When the detected piece 220 is directly connected with the pushing seat 210, the detected piece 220 moves along with the pushing seat 210 and extends into the detection extension opening 131 to accurately push against an external detection mechanism; when the detected member 220 is not directly connected to the pushing base 210, the detected member 220 is telescopically disposed on the detection extension port 131, and the pushing base 210 pushes the detected member 220 to extend out of the detection extension port 131 when passing through the detection extension port 131.

Compared with the prior art, the utility model limits the extending direction of the detected piece 220 by using the detecting extending port 131, can accurately push the detecting mechanism outwards, realizes that the detected piece 220 is pushed only once by using the pushing structure under the condition that the pushing seat 210 is driven by the driving force receiving assembly 300 to rotate for one circle or less, effectively reduces the installation difficulty of the detected structure, greatly reduces the production cost, has simple structure, is convenient to assemble and has reliable structure.

Example 1

Referring to fig. 1 to 5, the pushing base 210 is provided with a pushing part 211, the detected member 220 is movably disposed on the detection extension port 131 and can perform telescopic movement in the detection extension port 131, and since the detection extension port 131 is disposed at a position close to the pushing base 210, the pushing part 211 rotates around the axis of the pushing base 210 during the rotation of the pushing base 210, and when passing through the detection extension port 131, the pushing part abuts against the detected member 220 and gradually pushes the detection member to extend out of the detection extension port 131, so that the detected member 220 is identified by an external detection mechanism. The detected piece 220 comprises a push rod penetrating the detection extension port 131 and a force-bearing part 221 arranged at the end of the push rod, the force-bearing part 221 is arranged at a position close to the axis of the push seat 210 and is positioned on the motion path of the abutting part 211, the push seat 210 pushes the detected piece 220 to move on the detection extension port 131 through the abutting part 211, the force-bearing area of the detected piece 220 can be increased, the force-bearing fault tolerance of the detected piece 220 is improved, and accurate abutting between the push seat 210 and the detected piece 220 is realized.

Specifically, referring to fig. 2 to 5, the detection protrusion 131 is provided with an elastic resetting element 400, and the elastic resetting element 400 is respectively connected to the end cap 120 and the detected element 220, so that the detected element 220 has a movement potential energy retracting from the detection protrusion 131, and the detected element 220 is reset. The elastic restoring member 400 is preferably a compression spring or a tension spring, in this embodiment, when the elastic restoring member 400 is a compression spring, two ends of the compression spring respectively abut against the detected member 220 and the detection extending opening 131 of the end cover 120, the detection extending opening 131 is provided with a clamping groove 131 capable of clamping one end of the compression spring, and the detected member 220 abuts against the compression spring through the stress part 221.

Referring to fig. 3 to 5, the developing cartridge of embodiment 1 operates as follows: after the driving force receiving assembly 300 receives the driving force, the driving force is transmitted to the pushing base 210, the pushing base 210 is driven to rotate along the X direction, the abutting portion 211 of the pushing base 210 pushes the detected member 220 to gradually extend out of the detection extension opening 131 through the force receiving portion 221 in the rotating process, the detection signal is transmitted to the external detection mechanism, when the abutting portion 211 on the pushing base 210 leaves the detection extension opening 131, the elastic resetting member 400 pushes the detected member 220 to reset, and the detected member 220 retracts into the detection extension opening 131 again.

Example 2

Referring to fig. 6 to 14, the end cap 120 is provided with a ring guide 140 and a stopper 150, the ring guide 140 is disposed along a circumferential direction of the push base 210, a detection protrusion 131 formed on the end cap 120 is formed between the ring guide 140 and the stopper 150, the detected object 220 is connected to the push base 210, the detected object 220 abuts against the ring guide 140 during rotation of the push base 210, and the ring guide 140 guides the detected object 220. After receiving the driving force, the pushing base 210 pushes the detected member 220 to move, and the detected member 220 moves along the ring guide 140 and finally extends into the detection extending opening 131.

Specifically, the pushing base 210 is provided with a force application portion 212, the detected piece 220 is connected to the force application portion 212 in a folded manner, and the force application portion 212 pushes the detected piece 220 to move along the ring guide portion 140, gradually passes through the detection extension opening 131 and extends out of the detection extension opening 131. The push base 210 pushes the detected member 220 to move along the ring guide 140 and extends the detected member 220 from the detection extension opening 131. The force application part 212 is connected to the force application part 212 of the push base 210 in a turnover mode, so that the detected piece 220 retracts into the detection extension opening 131 along with the continuous movement of the push base 210, the automatic retraction function of the detected piece 220 is realized, the design is ingenious, and the detected piece retracts along with the continuous movement of the push base 210 without using a reset piece and is separated from the detection mechanism.

Referring to fig. 9 to 12, the operation of the developing cartridge of embodiment 2 is as follows: the driving force is transmitted to the pushing base 210 through the driving force receiving assembly 300 to drive the pushing base 210 to rotate, the pushing base 210 rotates along the Y direction around its own rotation axis, and the detected piece 220 is pushed to rotate by the force application part 212, the detected piece 220 is guided to the detection extension port 131 through the ring guide part 140, and gradually extend to the outside of the detection extension opening 131, and transmit the detection signal to the detection mechanism until the force application portion 212 on the pushing seat 210 reaches the detection extension opening 131, the detected member 220 is at the maximum extending position, and thereafter the push base 210 continues to rotate, because the detected piece 220 is connected to the force application part 212 in a folding manner, the detected piece 220 is pushed back and folded by the blocking part 150, the gap formed between the blocked part 150 and the force application part 212 limits the detected piece 220 to gradually approach the force application part 212, the detected piece is retracted from the detection extension opening 131, and the detected piece is folded outside the force application part 212 under the action of the blocking part 150.

The above is a process of extending the detected member 220, when the detected member 220 needs to perform two or more than two extending processes on the detecting extending port 131, the detected member 220 can have a reset function, and continue to rotate along the Y direction, a neutral period is provided between the stopper 150 and the ring guide 140, and after the folded detected member 220 is separated from the stopper 150, the detected member 220 resets to the initial position again in the neutral period, and can continue to extend along the ring guide 140 to the detecting extending port 131 in the next rotating process, so as to repeat. The detected piece 220 is preferably an arc structure protruding outward from the pushing seat 210, and an arc of the arc structure is similar to or coincident with the arc sidewall of the ring guide 140 and can abut against the arc sidewall of the ring guide 140, so that the motion continuity of the detected piece 220 can be improved, and the smooth motion of the detected piece 220 can be ensured.

Further, referring to fig. 7, one end of the ring guide 140 close to the detection protrusion 131 has a detection guide surface 141, and the detection guide surface 141 gradually gets away from the rotation axis of the pushing seat 210 in the process of approaching the detection protrusion 131, and is in a structure mode of expanding outward. The push base 210 rotates in the Y direction, and when the extension end of the detected member 220 passes the detection guide surface 141, the detected member 220 gradually deviates from the original circumferential movement and can finally extend on the detection extension opening 131. It should be noted that the detected member 220 can be directly and integrally formed on the force application portion 212, the detected member 220 has a deformation resistance, when the detected member 220 abuts against the ring guide portion 140, the detected member 220 tends to expand outward, and when the pushing seat 210 rotates, the detected member 220 always moves along the inner side wall of the ring guide portion 140 and can extend to the detection extension opening 131. In combination with the structure of multiple expansion, an entrance guide surface can be provided at the entrance end of the ring guide 140, and the process of multiple expansion can be continuously realized.

Further, an end of the stopper 150 adjacent to the detection projection port 131 has a turn-over guide surface 151, and the turn-over guide surface 151 gradually approaches the rotation axis of the push base 210 while being away from the detection projection port 131, and forms a horn-shaped structure with the detection guide surface 141 on the inner side of the detection projection port 131. The pushing base 210 rotates along the Y direction, the force application part 212 continues to move through the detection extension opening 131, the detected piece 220 gradually approaches the outer side wall of the force application part 212 under the action of the folding guide surface 151, and retracts from the detection extension opening 131 during folding. The turning guide surface 151 plays a role in guiding the turning process of the turning guide surface 151, and corresponds to the stretching speed of the detected piece 220 on the detection extension port 131, so that the situation that the detected piece 220 is bent at two sides of the detection extension port 131 due to too fast turning on the blocking part 150 and the detected piece 220 is damaged is avoided.

Further, the end cover 120 has a through hole 121 to be measured, which is coaxial with the push base 210, the push base 210 is disposed in the through hole 121 to be measured, and the through hole 121 to be measured can be used to observe the movement of the detected object 220 and protect the push base 210. The ring guide 140 and the stopper 150 are disposed on the edge of the opening of the through hole 121, and after the force application portion 212 passes through the stopper 150, the detected member 220 enters the reset active region, i.e., in the above-mentioned neutral period, so as to conveniently reset the detected member 220.

In another embodiment of the present invention, referring to fig. 13 and 14, in order to realize a single driving of the driving force receiving assembly 300 to the pushing seat 210, the pushing seat 210 has a connecting toothed ring 213 thereon, the driving force receiving assembly 300 includes a transmission gear 310 engaged with the connecting toothed ring 213, and the connecting toothed ring 213 has a tooth-missing portion 2131 capable of disengaging from the transmission gear 310. The connecting ring gear 213 is disposed circumferentially along the rotation axis of the pushing seat 210, and the connecting ring gear 213 has a continuous gear structure, but the toothless portion 2131 has no gear structure capable of meshing with the transmission gear 310. When the transmission gear 310 is engaged with the connection gear ring 213, the push base 210 is driven to rotate by the gear tooth structure until the connection gear ring 213 is not engaged with the transmission gear 310 after reaching the toothless part 2131, and the driving force on the driving force receiving assembly 300 can not be transmitted from the transmission gear 310 to the push base 210.

Specifically, the main housing 110 has a limiting portion 160, and the pushing base 210 has a limiting blocking piece 214, so that when the connecting ring gear 213 is separated from the transmission gear 310, the limiting blocking piece 214 abuts against the limiting portion 160, and the connecting ring gear 213 is prevented from continuously rotating under the unexpected conditions of gravity, impact, vibration, and the like, and is again touched and meshed with the transmission gear 310. In this embodiment, the limiting stopper 214 is disposed on the toothless portion 2131 of the connecting gear ring 213, but the disposition positions of the limiting stopper 214 and the limiting portion 160 may be determined according to the final disengaging position of the pushing seat 210 on the driving force receiving assembly 300.

Further, the driving force receiving assembly 300 is used for receiving the driving force input by the driving mechanism and transmitting the driving force to various components of the developing cartridge (including the detected assembly 200). In this embodiment, the driving force receiving assembly 300 is composed of a gear set, transmits power to each component, and can receive driving force through a gear transmission manner, or can receive driving force on a driving mechanism through other transmission manners such as belt transmission.

In other embodiments, the developing cartridge may further include other structures such as a developer accommodating chamber, an agitating frame, and the like, which are not described herein.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. A developing cartridge, characterized by comprising:

the shell comprises a main shell and an end cover detachably connected to the main shell, wherein a detection extension port is formed in the end cover;

a driving force receiving assembly provided on the main housing;

the detected component is arranged between the outer shell and the end cover and comprises a detected piece and a pushing seat which is rotatably connected to the main shell, the driving force receiving component is connected with the pushing seat and drives the pushing seat to rotate once, the detected piece is connected with the pushing seat or can be connected with the pushing seat, and the pushing seat pushes the detected piece to extend out of the detection extending opening.

2. A developing cartridge according to claim 1, wherein a pushing portion is provided on said pushing base, said member to be detected is movably provided on said detection projection opening, and said pushing portion pushes said member to be detected to project from said detection projection opening when said pushing base is rotated.

3. A developing cartridge according to claim 2, wherein an elastic returning member is provided on said detection projection opening, said elastic returning member being connected to said end cap and said detected member respectively and causing said detected member to have a tendency of movement to retract from said detection projection opening.

4. A developing cartridge according to claim 1, wherein a ring guide portion and a stopper portion are provided on the end cover, the detecting projection opening is formed between the ring guide portion and the stopper portion, the detected member is connected to the pushing base, and the pushing base pushes the detected member to move along the ring guide portion and to project the detected member from the detecting projection opening.

5. A developing cartridge according to claim 4, wherein a force applying portion is provided on said pushing base, said member to be detected is turnably connected to said force applying portion, said force applying portion pushes the member to be detected to move along said ring guide and to extend from said detection protrusion, and said member to be detected is turnably retracted into said detection protrusion through said stopper.

6. A developing cartridge according to claim 5, wherein an end of said ring guide portion, which is close to said detection projection opening, has a detection guide surface which is gradually distanced from a rotational axis of said push base in a process of being close to said detection projection opening.

7. A developing cartridge according to claim 5, wherein an end of said stopper portion close to said detection projection opening has a turnover guide surface gradually approaching a rotation axis of said push base in a process of being away from said detection projection opening.

8. A developing cartridge according to claim 4, wherein said end cap has a through-hole to be measured provided coaxially with said push base, said push base is provided in said through-hole to be measured, and said ring guide portion and said stopper portion are provided on an aperture edge of said through-hole to be measured.

9. A developing cartridge according to any one of claims 1 to 8, wherein said push base has a coupling ring gear thereon, said driving force receiving member includes a transmission gear engaging with said coupling ring gear, and said coupling ring gear has a toothless portion thereon which is disengageable from said transmission gear.

10. A developing cartridge according to claim 9, wherein said main casing has a position-limiting portion thereon, and said push base has a position-limiting stopper thereon, and when said connecting ring gear is disengaged from said transmission gear, said position-limiting stopper abuts on said position-limiting portion.

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