A counting gear structure for a toner cartridge and a toner cartridge

By replacing the spring drive with a magnetic unit in the toner cartridge, and using magnetic repulsion to drive the movable seat to reset, the problem of deteriorated driving effect caused by spring drive fatigue is solved, and a stable driving effect is achieved.

CN224457230UActive Publication Date: 2026-07-03ZHUHAI ZHONGKAI IMAGING PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI ZHONGKAI IMAGING PROD CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When using springs to drive the slider in existing toner cartridges, fatigue can easily occur after prolonged use, leading to a decrease in driving performance and affecting the stability of the slider.

Method used

A magnetic unit is used instead of a spring drive. The movable seat is driven to reset by the magnetic repulsion between the first and second magnetic units, ensuring a stable driving effect.

Benefits of technology

It achieves stability and durability of magnetic drive, avoids the fatigue problem of spring drive, and maintains stable driving effect during long-term use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a toner cartridge counting gear structure and a toner cartridge, including: a toner cartridge counting gear structure comprising: a housing, a movable seat laterally movably fitted within the housing, a movable part hinged to the movable seat at its right end, an elastic element, a first magnetic unit connected within the housing, and a second magnetic unit connected to the movable seat. The movable seat has a plurality of teeth laterally distributed at its bottom, with the teeth protruding below the housing. One end of the elastic element abuts against the movable seat, and the other end abuts against the movable part. A limiting portion at the left end of the movable part abuts against a limiting surface within the movable seat. The right magnetic pole of the first magnetic unit and the left magnetic pole of the second magnetic unit repel each other, driving the movable seat to move to the right and reset. Compared to using a spring to drive the movable seat to reset, this magnetic drive provides stability and maintains a stable driving effect on the movable seat even after prolonged use.
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Description

Technical Field

[0001] This utility model relates to the technical field of toner cartridges, and in particular to a toner cartridge counting gear structure and a toner cartridge. Background Technology

[0002] Chinese patent CN120595550A discloses a developer container and printing equipment. The description specifically discloses: a substrate 521, a slider 522 movably disposed on the substrate 521, and a movable plate 523 movably disposed on the slider 522. The slider 522 can reciprocate along a first trajectory on the substrate 521 and has connecting teeth 524 located on the movement trajectory of the drive teeth 512. A first elastic element 530 (i.e., a spring) is used to pull the slider 522 from the sensing area to the non-sensing area. Although the spring can drive the slider to move to the right and reset (i.e., move from the sensing area to the non-sensing area), the spring will fatigue after prolonged use, resulting in a deterioration in the driving effect and affecting the driving of the slider. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a toner drum counting gear structure to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a toner cartridge counting gear structure is designed, comprising: a housing, a movable seat laterally movably fitted within the housing, a movable part hinged to the movable seat at its right end, an elastic element, a first magnetic unit connected within the housing, and a second magnetic unit connected to the movable seat. The movable seat has a plurality of teeth laterally distributed at its bottom, with the teeth protruding below the housing. One end of the elastic element abuts against the movable seat, and the other end abuts against the movable part. A limiting portion at the left end of the movable part abuts against a limiting surface within the movable seat. The right magnetic pole of the first magnetic unit and the left magnetic pole of the second magnetic unit repel each other, thereby driving the movable seat to move to the right and reset.

[0006] Using the above technical solution, when the movable seat is driven to move to the left, causing the second magnetic unit to approach the first magnetic unit, since the right end magnetic pole of the first magnetic unit and the left end magnetic pole of the second magnetic unit are the same and repel each other, when the driving force for the movable seat to move to the left disappears and the movable seat needs to move to the right to reset, the magnetic force between the first magnetic unit and the second magnetic unit can drive the movable seat to move to the right to reset. Compared with using a spring to drive the movable seat to reset, the magnetic drive is more stable and can still maintain a stable driving effect on the movable seat after long-term use.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, both the first magnetic unit and the second magnetic unit are magnetic blocks.

[0009] In some embodiments, both the first magnetic unit and the second magnetic unit are electromagnets.

[0010] In some embodiments, the first magnetic unit and the second magnetic unit are respectively a magnetic block and an electromagnet.

[0011] In some embodiments, the elastic element is a spring, one end of which is fitted onto a first limiting protrusion on the movable seat, and the other end of which is fitted onto a second limiting protrusion on the movable part.

[0012] In some embodiments, the bottom of the housing is provided with a guide hole of a transverse structure, and the bottom of the movable seat is provided with a guide portion that movably engages with the guide hole laterally.

[0013] In some implementations, there is a bottom shell and a cover plate attached to the top of the bottom shell.

[0014] According to another aspect of this utility model, a toner cartridge is designed, comprising: a toner cartridge body and the aforementioned toner cartridge counting gear structure. The toner cartridge counting gear structure is connected to the toner cartridge body. When the driving force transmission component on the toner cartridge body rotates, it drives the driving teeth to rotate counterclockwise. The rotation of the driving teeth meshes with the teeth at the bottom of the movable seat, driving the movable seat to move to the left. The leftward movement of the movable seat drives the movable part to move to the sensing area. When the driving teeth disengage from the teeth at the bottom of the movable seat, the first magnetic unit and the second magnetic unit drive the movable seat to move to the right and reset through the repulsive magnetic force. Attached Figure Description

[0015] Figure 1 A schematic diagram of a toner cartridge counting gear structure according to one embodiment of this utility model. Figure 1 ;

[0016] Figure 2 Schematic diagram of the toner cartridge counting gear structure Figure 2 The movable seat is in a leftward position;

[0017] Figure 3 for Figure 2 A diagram from another perspective;

[0018] Figure 4 This is a schematic diagram of the internal structure of the housing, in which the movable seat is in the leftward position;

[0019] Figure 5 This is a schematic diagram of the movable seat.

[0020] Figure 6 This is a schematic diagram of the toner cartridge structure;

[0021] Figure 7 This is a schematic diagram showing the state of the toner cartridge after the end cap has been hidden.

[0022] Figure 8 This is a partial schematic diagram of the state of the toner cartridge after the end cap is hidden.

[0023] Figure label:

[0024] 1. Housing; 1a. Bottom shell; 1b. Cover plate; 11. Guide hole; 2. Movable seat; 21. Tooth; 22. First limiting protrusion; 23. Limiting surface; 24. Guide part; 3. Movable part; 31. Second limiting protrusion; 32. Limiting part; 4. Elastic element; 5. First magnetic unit; 6. Second magnetic unit; 7. Toner cartridge body; 71. End cover; 72. Drive force transmission element; 721. Drive tooth. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Example 1

[0029] refer to Figures 1 to 5 As shown, the present invention provides a toner cartridge counting gear structure, comprising: a housing 1, a movable seat 2 laterally movably fitted within the housing 1, a movable part 3 hinged to the movable seat 2 at its right end, an elastic element 4, a first magnetic unit 5 connected within the housing 1, and a second magnetic unit 6 connected to the movable seat 2. The first magnetic unit 5 is glued to the housing 1 or partially embedded within the housing 1, and the second magnetic unit 6 is glued to the movable seat 2 or partially embedded within the housing 1.

[0030] The bottom of the movable seat 2 has several teeth 21 distributed horizontally, and the teeth 21 are exposed below the housing 1. The rear end of the elastic element 4 abuts against the movable seat 2, and the front end abuts against the movable part 3. The elastic element 4 is a spring or a spring sheet. In this embodiment, the elastic element 4 is preferably a spring. The rear end of the elastic element 4 is sleeved on the first limiting protrusion 22 on the movable seat 2, and the front end of the elastic element 4 is sleeved on the second limiting protrusion 31 on the movable part 3. The elastic element 4 has been positioned and installed.

[0031] The limiting part 32 at the left end of the movable part 3 abuts against the limiting surface 23 inside the movable seat 2. When the movable part 3 moves to the right with the movable seat 2, the inclined surface on the front side of the movable part 3 is subjected to force, and the movable part 3 will swing clockwise with the hinge position at its right end as the center.

[0032] The right magnetic pole of the first magnetic unit 5 and the left magnetic pole of the second magnetic unit 6 repel each other, which drives the movable seat 2 to move to the right and reset. The first magnetic unit 5 and the second magnetic unit 6 are both magnetic blocks, or both are electromagnets, or one is a magnetic block and the other is an electromagnet. In this embodiment, it is preferred that both the first magnetic unit 5 and the second magnetic unit 6 are strong magnetic blocks.

[0033] The bottom of the housing 1 is provided with a guide hole 11 with a horizontal structure, and the bottom of the movable seat 2 is provided with a guide part 24 that is laterally movable and cooperates with the guide hole 11.

[0034] The housing 1 includes a bottom shell 1a and a cover plate 1b connected to the top of the bottom shell 1a. The cover plate 1b is snapped into the bottom shell 1a or fixed to it by screws.

[0035] Example 2

[0036] refer to Figures 1 to 8 As shown, the present invention provides a toner cartridge, comprising: a toner cartridge body 7 and a toner cartridge counting gear structure of Embodiment 1. The housing 1 of the toner cartridge counting gear structure is snapped or fixed to the end cover 71 of the toner cartridge body 7 by screws. When the driving force transmission component 72 on the toner cartridge body 7 rotates, it drives the driving gear 721 to rotate counterclockwise. The driving gear 721 is composed of a small section of teeth. The counterclockwise rotation of the driving gear 721 engages with the teeth 21 at the bottom of the movable seat 2, driving the movable seat 2 to move to the left. The leftward movement of the movable seat 2 drives the movable part 3 to move to the left to the sensing area. After the detection component on the printer detects the movable part 3, it feeds back information to the counting component for one count. When the driving gear 721 disengages from the teeth 21 at the bottom of the movable seat 2, the first magnetic unit 5 and the second magnetic unit 6 drive the movable seat 2 to move to the right and reset through the repulsive magnetic force, driving the movable part 3 to move to the right to the non-sensing area.

[0037] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A toner cartridge counting gear structure, characterized in that, include: The device comprises a housing, a movable seat that is laterally movable within the housing, a movable part hinged to the movable seat at its right end, an elastic element, a first magnetic unit connected within the housing, and a second magnetic unit connected to the movable seat. The movable seat has several teeth laterally distributed at its bottom, with some of these teeth protruding below the housing. One end of the elastic element abuts against the movable seat, and the other end abuts against the movable part. The limiting part at the left end of the movable part abuts against the limiting surface within the movable seat. The magnetic pole at the right end of the first magnetic unit and the magnetic pole at the left end of the second magnetic unit repel each other, thereby driving the movable seat to move to the right and reset.

2. The toner cartridge counting gear structure according to claim 1, characterized in that, Both the first magnetic unit and the second magnetic unit are magnetic blocks.

3. A toner cartridge counting gear structure according to claim 1 or 2, characterized in that, Both the first magnetic unit and the second magnetic unit are electromagnets.

4. The toner cartridge counting gear structure according to claim 1, characterized in that, The first magnetic unit and the second magnetic unit are respectively a magnetic block and an electromagnet.

5. The toner cartridge counting gear structure according to claim 1, characterized in that, The elastic element is a spring, one end of which is sleeved on the first limiting protrusion on the movable seat, and the other end is sleeved on the second limiting protrusion on the movable part.

6. The toner cartridge counting gear structure according to claim 1, characterized in that, The bottom of the housing is provided with a guide hole with a horizontal structure, and the bottom of the movable seat is provided with a guide part that movably engages with the guide hole.

7. The toner cartridge counting gear structure according to claim 1, characterized in that, The housing includes a bottom shell and a cover plate connected to the top of the bottom shell.

8. A toner cartridge, characterized in that, It includes: a toner cartridge body and a toner cartridge counting gear structure as described in any one of claims 1-7. The toner cartridge counting gear structure is connected to the toner cartridge body. When the driving force transmission component on the toner cartridge body rotates, it drives the driving teeth to rotate counterclockwise. The rotation of the driving teeth meshes with the teeth at the bottom of the movable seat, driving the movable seat to move to the left. The leftward movement of the movable seat drives the movable part to move to the left to the sensing area. When the driving teeth disengage from the teeth at the bottom of the movable seat, the first magnetic unit and the second magnetic unit drive the movable seat to move to the right and reset through the repulsive magnetic force.