Toner cartridge with counting structure

Abstract

The utility model provides a toner cartridge with a counting structure, comprising a toner cartridge body, a gear end cover is provided at one end of the toner cartridge body, a printing gear assembly and a counting device are provided on the gear end cover, the counting device is meshed and connected to the printing gear assembly, and the counting device comprises: a counting gear meshed with the printing gear assembly, a plurality of toggle members and a torsion spring pressure member are evenly provided in the middle of the counting gear; a torsion spring, one end of which is fixed on the gear end cover and the other end is in contact with the torsion spring pressure member; a toggle lever assembly, which is located above the torsion spring and has two ends mounted on both sides of the counting gear, and when the counting gear rotates, a plurality of toggle members toggle and trigger the sensing element in the printer through the toggle lever assembly; a gear reset assembly, which is provided on one side of the counting gear and blocks the running path of the counting block on the surface of the counting gear. The utility model relates to the technical field of toner cartridges.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon powder boxes, in particular to a carbon powder box with a counting structure. Background Art

[0002] In the field of modern office and commercial printing, toner cartridges, as the core consumables of laser printers, play a vital role in achieving efficient and high-quality printing. With the popularization of environmental protection concepts and the development trend of a resource-saving society, the importance of toner cartridges being able to be repeatedly refilled and reused after the initial toner is used up has become increasingly prominent. This refillable design not only significantly reduces users' printing costs and reduces waste emissions, but also complies with the principles of a circular economy and is conducive to sustainable development.

[0003] In the traditional toner cartridge design, a counting structure is often included to track the remaining toner and prompt the user when toner needs to be replaced or replenished. In the past technical solutions, this type of counting structure usually adopts a gear design. When the toner cartridge is installed in the printer and started, the gear lever will mechanically trigger the sensor element inside the printer, thereby notifying the printer how many times the toner cartridge can be printed. However, once the gear lever passes the sensor, due to the lack of an effective reset mechanism, the user must open the toner cartridge and remove the gear end cover to manually reset the operation. This process is not only cumbersome and complicated, but also prone to user misoperation, affecting the printer's work efficiency and stability.

[0004] In order to solve the above problems, some toner cartridge products have begun to introduce an improved counting structure design, that is, installing a transmission part on the gear end cover of the toner cartridge, allowing the user to drive the internal counting gear to reset by twisting the end cover or rotating a specific part with the help of tools such as a screwdriver. Although this improvement scheme avoids the operation of completely disassembling the toner cartridge, there are still some shortcomings. First, since the reset process is hidden inside the end cover, the user cannot directly observe the actual status of the counting gear, which increases the uncertainty of the operation; secondly, the linkage structure between the transmission part and the counting gear is relatively complex, which may increase manufacturing costs and may cause additional failure points, thereby reducing product reliability and user experience. Utility Model Content

[0005] In view of the deficiencies of the above-mentioned prior art, the utility model provides a toner cartridge with a counting structure, which saves the user from excessive operations. When the toner in the toner cartridge is used up, there is no need to remove the gear end cover and other components of the toner cartridge. The user can directly pull the pull rod on the gear end cover side, and the internal counting structure will automatically reset. After refilling the toner, the toner cartridge can be put into the machine for normal use.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a toner cartridge with a counting structure, including a toner cartridge body, a gear end cover is arranged at one end of the toner cartridge body, a printing gear assembly and a counting device are arranged on the gear end cover, the counting device is meshed and connected to the printing gear assembly, and the counting device includes: a counting gear, meshed with the printing gear assembly, a plurality of toggle members and a torsion spring pressure member are evenly arranged in the middle of the counting gear; a torsion spring, one end of which is fixed on the gear end cover and the other end is in contact with the torsion spring pressure member; a lever assembly, located above the torsion spring, with both ends mounted on both sides of the counting gear, when the counting gear rotates, a plurality of the toggle members trigger the toggle of the sensing element in the printer through the lever assembly; a gear reset assembly, arranged on one side of the counting gear, and blocking the running path of the counting block on the surface of the counting gear.

[0007] Based on the above, a toner cartridge with a counting structure has the following beneficial effects: when the toner in the toner cartridge is used up, there is no need to remove the gear end cover and other components of the toner cartridge, and the pull rod can be directly pulled on the gear end cover side, and the internal counting structure can be automatically reset directly. After refilling the toner, the toner cartridge can be used normally after it is dropped off the machine; it is mainly reflected in: the counting device of the utility model is composed of a counting gear, a torsion spring, a lever assembly and a gear reset assembly, and the counting gear is driven to operate by the printing gear assembly. During the rotation of the counting gear, its several lever members lever the lever assembly, so that the lever assembly levers and triggers the sensing element in the printer, and the printer thereby identifies the model and toner capacity of the toner cartridge and starts printing; in the counting process, the toner cartridge is automatically reset and the toner is refilled again. When the counting gear rotates, the torsion spring pressure piece continuously squeezes the torsion spring located under the lever assembly to accumulate reset energy. When the counting gear rotates to the empty tooth part facing the printing gear assembly, the torsion spring deformation is maximum and the reset energy also reaches a peak value. At this time, the gear reset assembly just blocks the counting block on the surface of the counting gear, preventing the counting gear from resetting due to the reset energy of the torsion spring. Until the printer reaches the predetermined value of toner cartridge exhaustion according to the toner capacity count of this model, it will automatically alarm and stop working. At this time, take out the toner cartridge and gently pull the gear reset assembly to avoid the working path of the counting block. The torsion spring releases the accumulated energy by its own elasticity, pushes the counting gear to rotate and reset to the position where it is initially meshed with the printing gear assembly.

[0008] Furthermore, the counting gear is provided with an empty tooth portion. When the counting stopper is rotated to be blocked at the gear reset assembly, the empty tooth portion is located at the meshing position of the counting gear and the printing gear assembly, preventing the counting gear from being further driven to rotate.

[0009] Based on the above, the beneficial effect of the empty tooth portion is to prevent the counting gear from being driven to work by the printing gear assembly after the counting gear is triggered by the lever assembly toggling the sensing element in the printer.

[0010] Furthermore, the gear end cover is provided with a counting boss, a torsion spring fixing column, a torsion spring positioning platform and a lever support column, the counting gear is sleeved on the counting boss, the tail of the torsion spring is clamped on the inner side of the torsion spring positioning platform, one side of the lever assembly is arranged on the torsion spring fixing column, and the torsion spring is limited in the torsion spring fixing column, and the other side of the lever assembly is arranged on the lever support column.

[0011] Based on the above, the beneficial effect of the counting boss is to support and position the counting gear, ensuring that the counting gear is accurately meshed with other transmission components, thereby improving the stability of the counting process; the beneficial effect of the torsion spring fixing column is to limit the torsion spring and fix one end of the lever assembly; the beneficial effect of the torsion spring positioning platform is to position the tail of the torsion spring, so that one end of the torsion spring is completely fixed, and the other end can be squeezed by the torsion spring pressure piece to accumulate reset energy; the beneficial effect of the lever support column is to fix the other end of the lever assembly.

[0012] Furthermore, the lever assembly consists of a lever frame, a lever return spring and a lever, a lever slide rail is provided in the middle of the lever frame, a first lever spring positioning block is provided at one end of the lever frame close to the torsion spring fixing column, and the first lever spring positioning block is located on the edge of one side of the lever slide rail, the lever is slidably connected in the lever slide rail, a second lever spring positioning block is provided on the lever, and the lever return spring is connected between the first lever spring positioning block and the second lever spring positioning block.

[0013] Based on the above, the beneficial effect of the lever frame is to install the lever; the beneficial effect of the lever return spring is to ensure that the lever can quickly return to the initial position after disengaging from the counting gear toggle member so as to trigger the next signal, thereby improving the response speed and reliability of the system; the beneficial effect of the lever is to directly contact the sensing element in the printer, and through its own motion state changes, the printer can realize the capacity identification and feedback of the toner cartridge; the beneficial effect of the lever slide rail is to guide the displacement direction of the lever; the beneficial effect of the first lever spring positioning block and the second lever spring positioning block is to install the lever return spring.

[0014] Furthermore, a gear protection cover is provided on the outer side of the gear end cover, and a raised limiting portion is provided on the gear protection cover at the counting gear, a visible window is provided on one side of the raised limiting portion, and a reset rod slide rail is provided on the side of the visible window close to the torsion spring fixing column, the gear reset assembly consists of a gear reset rod and a gear reset spring, the gear reset rod is slidably connected in the reset rod slide rail, a reset spring positioning column is provided between the reset rod slide rail and the visible window, the gear reset spring is connected between the reset spring positioning column and the gear reset rod, and one end of the gear reset rod is blocked on the running path of the counting block.

[0015] Based on the above, the beneficial effect of the gear protection cover is to protect internal precision parts such as counting gears from the influence of the external environment; the beneficial effect of the raised limit part is to limit the counting gear together with the counting boss; the beneficial effect of the visual window is to allow the user to directly see the working status of the counting gear, and to better maintain the counting device, thereby improving the user experience; the beneficial effect of the reset rod slide rail is to guide the displacement direction of the reset rod; the beneficial effect of the reset rod is to reset the counting gear; the beneficial effect of the gear reset spring is to ensure that the counting gear can quickly return to its initial position after being reset, so that the counting device can block the working path of the counting block after toggling the printer sensing element again to prevent the counting gear from resetting prematurely; the beneficial effect of the reset spring positioning column is to install the gear reset spring together with the reset rod.

[0016] Furthermore, a lever limiting platform is provided on one side of the visible window away from the raised limiting portion, and the shifting end of the lever is limited on one side of the lever limiting platform; through the visible window, the working state of the counting gear can be clearly observed.

[0017] Based on the above, the beneficial effect of the lever limiting platform is to prevent the lever from being separated from the original track during operation and thus being unable to dial the printer sensing element.

[0018] Furthermore, the printing gear assembly is provided with a developing roller gear, a powder feeding roller gear, a driving gear, an intermediate gear and a stirring frame gear. The developing roller gear, the powder feeding roller gear and the intermediate gear are all meshed around the driving gear, the stirring frame gear is meshed on one side of the intermediate gear, and the counting gear is meshed on one side of the stirring frame gear.

[0019] Based on the above, the beneficial effect of the developing roller gear is to drive the toner cartridge developing roller to work; the beneficial effect of the powder feeding roller gear is to drive the toner cartridge powder feeding roller to work; the beneficial effect of the driving gear is to drive the developing roller gear, the powder feeding roller gear and the intermediate gear; the beneficial effect of the intermediate gear is to engage and drive the stirring frame gear to work; the beneficial effect of the stirring frame gear is to drive the toner cartridge stirring frame and the counting gear to work.

[0020] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : is a three-dimensional diagram of the utility model;

[0022] Figure 2 : It is a schematic diagram of the gear end cover of the utility model;

[0023] Figure 3 : It is a schematic diagram of a counting device of the utility model;

[0024] Figure 4 : It is a schematic diagram of the cooperation between the torsion spring and the torsion spring pressing piece of the utility model;

[0025] Figure 5 : It is a three-dimensional diagram of the gear protection cover of the present utility model.

[0026] Description of the accompanying figures: 1-toner cartridge body, 2-gear end cover, 21-counting boss, 22-torsion spring fixing column, 23-torsion spring positioning platform, 24-push rod support column, 3-printing gear assembly, 31-developing roller gear, 32-powder feeding roller gear, 33-driving gear, 34-intermediate gear, 35-stirring frame gear, 4-counting device, 41-counting gear, 411-push piece, 412-torsion spring pressure piece, 413-counting block, 414-empty tooth part, 42-torsion spring Spring, 43-lever assembly, 431-lever frame, 4311-lever slide rail, 4312-first lever spring positioning block, 432-lever return spring, 433-lever, 4331-second lever spring positioning block, 44-gear return assembly, 441-gear return rod, 442-gear return spring, 5-gear protection cover, 51-return rod slide rail, 52-raised limit portion, 53-visual window, 54-return spring positioning column, 55-lever limit platform. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 5As shown, a toner cartridge with a counting structure comprises a toner cartridge body 1, one end of the toner cartridge body 1 is provided with a gear end cover 2, the gear end cover 2 is provided with a printing gear assembly 3 and a counting device 4, the counting device 4 is meshedly connected to the printing gear assembly 3, and the counting device 4 comprises:

[0028] A counting gear 41 is meshed with the printing gear assembly 3, and a plurality of toggle members 411 and a torsion spring pressing member 412 are evenly arranged in the middle of the counting gear 41;

[0029] A torsion spring 42, one end of which is fixed to the gear end cover 2, and the other end of which is in contact with the torsion spring pressure piece 412;

[0030] The lever assembly 43 is located above the torsion spring 42, and its two ends are mounted on both sides of the counting gear 41. When the counting gear 41 rotates, the plurality of the toggle members 411 toggle and trigger the sensing element in the printer through the lever assembly 43;

[0031] The gear reset assembly 44 is disposed on one side of the counting gear 41 and blocks the running path of the counting block 413 on the surface of the counting gear 41 .

[0032] The counting gear 41 is provided with an empty tooth portion 414. When the counting stopper 413 is rotated to the gear reset assembly 44 and blocked, the empty tooth portion 414 is located at the meshing position of the counting gear 41 and the printing gear assembly 3, preventing the counting gear 41 from being further driven to rotate.

[0033] The gear end cover 2 is provided with a counting boss 21, a torsion spring fixing column 22, a torsion spring positioning platform 23 and a lever support column 24, the counting gear 41 is sleeved on the counting boss 21, the tail of the torsion spring 42 is clamped on the inner side of the torsion spring positioning platform 23, one side of the lever assembly 43 is arranged on the torsion spring fixing column 22, and the torsion spring 42 is limited in the torsion spring fixing column 22, and the other side of the lever assembly 43 is arranged on the lever support column 24.

[0034] The lever assembly 43 consists of a lever frame 431, a lever return spring 432 and a lever 433. A lever slide rail 4311 is provided in the middle of the lever frame 431. A first lever spring positioning block 4312 is provided at one end of the lever frame 431 close to the torsion spring fixing column 22, and the first lever spring positioning block 4312 is located on the edge of one side of the lever slide rail 4311. The lever 433 is slidably connected in the lever slide rail 4311. A second lever spring positioning block 4331 is provided on the lever 433. The lever return spring 432 is connected between the first lever spring positioning block 4312 and the second lever spring positioning block 4331.

[0035] A gear protection cover 5 is provided on the outer side of the gear end cover 2, and a protruding limit portion 52 is provided on the gear protection cover 5 at the counting gear 41, and a visible window 53 is provided on one side of the protruding limit portion 52, and a reset rod slide rail 51 is provided on the side of the visible window 53 close to the torsion spring fixing column 22, and the gear reset assembly 44 is composed of a gear reset rod 441 and a gear reset spring 442, and the gear reset rod 441 is slidably connected in the reset rod slide rail 51, and a reset spring positioning column 54 is provided between the reset rod slide rail 51 and the visible window 53, and the gear reset spring 442 is connected between the reset spring positioning column 54 and the gear reset rod 441, and one end of the gear reset rod 441 blocks the running path of the counting block 413.

[0036] A lever limiting platform 55 is provided on one side of the visible window 53 away from the raised limiting portion 52 , and the moving end of the lever 433 is limited on one side of the lever limiting platform 55 ; through the visible window 53 , the working state of the counting gear 41 can be clearly observed.

[0037] The printing gear assembly 3 is provided with a developing roller gear 31, a powder feeding roller gear 32, a driving gear 33, an intermediate gear 34 and a stirring frame gear 35. The developing roller gear 31, the powder feeding roller gear 32 and the intermediate gear 34 are all meshed around the driving gear 33, the stirring frame gear 35 is meshed on one side of the intermediate gear 34, and the counting gear 41 is meshed on one side of the stirring frame gear 35.

[0038] In summary, the specific implementation of the utility model is as follows: the counting gear 41 is positioned by the counting protrusion 21 and meshes with the stirring frame gear 35 in the printing gear assembly 3; one end of the torsion spring 42 is fixed on the torsion spring fixing column 22, and the other end contacts the counting gear 41 through the torsion spring pressing piece 412; when the counting gear 41 rotates with the stirring frame gear 35, the torsion spring 42 is continuously squeezed to accumulate reset energy, and the toggle member 411 evenly distributed in the middle of the counting gear 41 rotates with the counting gear 41, and the toggle member 411 moves along the toggle rod slide rail 4311 by toggle the toggle rod 433, so that the other end of the toggle rod 433 toggle and trigger the sensing element inside the printer, so that the printer recognizes the toner capacity of the toner cartridge;

[0039] When the toner capacity count of the printer reaches the preset value of toner exhaustion according to the toner capacity count of the toner cartridge, the printer will automatically send out an alarm signal and stop working. At this time, the user only needs to take out the toner cartridge from the printer and directly pull the gear reset rod 441 on the side of the gear end cover 2. The gear reset rod 441 in the gear reset assembly 44 will slide in the reset rod slide rail 51, avoiding the working path of the counting block 413, releasing the torsion spring energy accumulated before, so that the counting gear 41 rotates back to the initial position to complete the reset;

[0040] After the user refills the toner cartridge with toner, the reset toner cartridge is reinstalled into the printer. Since the counting gear 41 has been reset, the toner capacity can be normally identified after the printer is put down and a new printing task can be started.

[0041] Finally, it should be noted that after the torsion spring 42 is added to the counting gear 41 in the traditional toner cartridge, the torsion spring 42 is squeezed to obtain sufficient reset potential energy for reset, but the empty tooth portion 414 is designed to be too large, resulting in the inability to always reset to the starting point where the counting gear 41 and the printing gear assembly 3 are meshed. After repeated verification by engineers, adding fifteen teeth to the empty tooth portion 414 of the counting gear 41 in the traditional toner cartridge is the optimal solution for reset.

[0042] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or substitutions made to the present invention by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A toner cartridge with a counting structure, comprising a toner cartridge body (1), characterized in that: A gear end cover (2) is provided at one end of the toner cartridge body (1), a printing gear assembly (3) and a counting device (4) are provided on the gear end cover (2), the counting device (4) is meshedly connected to the printing gear assembly (3), and the counting device (4) comprises: A counting gear (41) meshed with the printing gear assembly (3), wherein a plurality of toggle members (411) and a torsion spring pressing member (412) are evenly arranged in the middle of the counting gear (41); A torsion spring (42), one end of which is fixed to the gear end cover (2) and the other end of which is in contact with the torsion spring pressure piece (412); A lever assembly (43) is located above the torsion spring (42), and its two ends are mounted on both sides of the counting gear (41). When the counting gear (41) rotates, the plurality of the shifting members (411) shift and trigger the sensing element in the printer through the lever assembly (43); The gear reset assembly (44) is arranged on one side of the counting gear (41) and blocks the running path of the counting block (413) on the surface of the counting gear (41).

2. A toner cartridge with a counting structure according to claim 1, characterized in that: The counting gear (41) is provided with an empty tooth portion (414). When the counting stopper (413) is rotated to be blocked by the gear reset assembly (44), the empty tooth portion (414) is located at the meshing position between the counting gear (41) and the printing gear assembly (3), preventing the counting gear (41) from being further driven to rotate.

3. The toner cartridge with a counting structure according to claim 1, characterized in that: The gear end cover (2) is provided with a counting boss (21), a torsion spring fixing column (22), a torsion spring positioning platform (23) and a lever support column (24); the counting gear (41) is sleeved on the counting boss (21); the tail of the torsion spring (42) is clamped on the inner side of the torsion spring positioning platform (23); one side of the lever assembly (43) is arranged on the torsion spring fixing column (22) and the torsion spring (42) is limited in the torsion spring fixing column (22); the other side of the lever assembly (43) is arranged on the lever support column (24).

4. A toner cartridge with a counting structure according to claim 3, characterized in that: The lever assembly (43) is composed of a lever frame (431), a lever return spring (432) and a lever (433); a lever slide rail (4311) is arranged in the middle of the lever frame (431); a first lever spring positioning block (4312) is arranged at one end of the lever frame (431) close to the torsion spring fixing column (22); and the first lever spring positioning block (4312) is located on the edge of one side of the lever slide rail (4311); the lever (433) is slidably connected in the lever slide rail (4311); a second lever spring positioning block (4331) is arranged on the lever (433); and the lever return spring (432) is connected between the first lever spring positioning block (4312) and the second lever spring positioning block (4331).

5. The toner cartridge with a counting structure according to claim 3, characterized in that: The outer buckle of the gear end cover (2) is provided with a gear protection cover (5), and the gear protection cover (5) is provided with a protruding limit portion (52) located at the counting gear (41), and a visual window (53) is provided on one side of the protruding limit portion (52), and a reset rod slide rail (51) is provided on the side of the visual window (53) close to the torsion spring fixing column (22). The gear reset assembly (44) consists of a gear reset rod (441) and a gear reset spring ( 442), the gear reset rod (441) is slidably connected in the reset rod slide rail (51), a reset spring positioning column (54) is arranged between the reset rod slide rail (51) and the visual window (53), the gear reset spring (442) is connected between the reset spring positioning column (54) and the gear reset rod (441), and one end of the gear reset rod (441) is blocked on the running path of the counting block (413).

6. The toner cartridge with a counting structure according to claim 5, characterized in that: A lever limiting platform (55) is provided on one side of the visible window (53) away from the raised limiting portion (52); the moving end of the lever (433) is limited on one side of the lever limiting platform (55); and the working state of the counting gear (41) can be clearly observed through the visible window (53).

7. The toner cartridge with a counting structure according to claim 1, characterized in that: The printing gear assembly (3) is provided with a developing roller gear (31), a powder feeding roller gear (32), a driving gear (33), an intermediate gear (34) and a stirring frame gear (35); the developing roller gear (31), the powder feeding roller gear (32) and the intermediate gear (34) are all meshed around the driving gear (33); the stirring frame gear (35) is meshed on one side of the intermediate gear (34); and the counting gear (41) is meshed on one side of the stirring frame gear (35).

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