Transformation structure for detecting positions of gears of front and rear stirring frames

By designing a gear position switching structure for the stirring rack, the problems of complex testing procedures and toner leakage in the full inspection of compatible toner cartridges were solved. This achieved efficient and stable gear drive state switching, simplified the testing process, and prevented toner leakage.

CN223742952UActive Publication Date: 2025-12-30ZHONGSHAN SENWILL OFFICE SUPPLIES CO LTD
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Patent Information

Application Number
CN202520249720.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-30
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing compatible toner cartridges require step-by-step assembly and disassembly of the mixing rack gears during pre-shipment full inspection, resulting in a complex and inefficient testing process. This can easily lead to toner leakage and print quality issues, and it is impossible to switch gear drive modes without disassembling the cartridge.

Method used

Design a switching structure for detecting the position of the front and rear stirring rack gears. Through the axially movable stirring rack gears and the positioning and installed stirring rack, the outer circular rod and inner square rod at the shaft adjustment end, as well as the blocking block, are used to switch the position of the stirring rack gears, avoiding disassembly and assembly steps and ensuring the integrity of the sealing film.

Benefits of technology

It improves testing efficiency, avoids toner leakage and quality risks, enables gear drive state switching without disassembling the machine, simplifies the testing process, and ensures print quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a conversion structure for detecting positions of front and rear stirring frame gears. The conversion structure comprises the stirring frame gears capable of axially moving; the stirring frame is positioned and mounted in the toner cartridge; a shaft adjusting end part is arranged on one side, located at the conductive end of the toner cartridge, of the stirring frame, an outer circular rod and an inner square rod which are integrally formed are arranged at the shaft adjusting end part, and two blocking clamping blocks are symmetrically arranged at the end, close to the outer circular rod, of the inner square rod; a square hole matched with the inner square rod is formed in an inner hole of the stirring frame gear, and clamping grooves are formed in the four sides of the square hole; when the toner cartridge is subjected to full inspection, the stirring frame gear withdraws to the outer circular rod; and after detection is completed, the stirring frame gear is pushed into the inner square rod, so that any two opposite clamping grooves are matched with the two blocking clamping blocks, and the stirring frame is driven to work. The utility model relates to the technical field of toner cartridges.
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Description

Technical Field

[0001] This utility model relates to the field of toner cartridge technology, and in particular to a switching structure for detecting the position of the gears of the front and rear stirring racks. Background Technology

[0002] Currently, in compatible toner cartridge products, those using an automatic film-removing structure require full-scale testing before leaving the factory. Because the existing automatic film-removing structure has a fixed connection between the stirring drive gear and the stirring rod, directly installing the transmission gear for testing would cause the seal to be removed prematurely, rendering it ineffective. To avoid this problem, existing technology uses a distributed assembly method: before testing, the transmission gear between the stirring frame gear and the stirring rod must be removed so that the stirring rod cannot rotate during testing, thus preserving the seal; after passing the test, the toner cartridge must be disassembled and the transmission gear reinstalled. This method not only leads to a complex and inefficient testing process, but also risks toner leakage and contamination due to secondary disassembly and reassembly, potentially causing print quality issues. Furthermore, the existing structure cannot switch gear drive modes without disassembling the machine, resulting in repetitive operations and quality risks in the production process.

[0003] Therefore, the inventors designed a switching structure for detecting the position of the front and rear stirring rack gears to solve the above problems. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a switching structure for detecting the position of the front and rear stirring rack gears. It aims to solve the problems in the existing technology where compatible toner cartridges require step-by-step assembly and disassembly of the stirring rack gears during full inspection before leaving the factory, resulting in a complex and inefficient testing process, which can easily cause toner leakage and printing quality issues. It also addresses the inability to switch gear drive states without disassembling the machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a conversion structure for detecting the position of the front and rear stirring rack gears, comprising: an axially movable stirring rack gear; a stirring rack positioned and installed inside the toner cartridge; a shaft adjustment end is provided on the stirring rack on one side of the conductive end of the toner cartridge, the shaft adjustment end is provided with an integrally formed outer circular rod and an inner square rod, two blocking blocks are symmetrically arranged on one end of the inner square rod near the outer circular rod, the inner hole of the stirring rack gear is provided with a square hole that matches the inner square rod, and the four sides of the square hole are provided with slots; when the toner cartridge is fully inspected, the stirring rack gear retracts onto the outer circular rod; after the inspection is completed, the stirring rack gear is pushed into the inner square rod, so that any two opposite slots are adapted to the two blocking blocks, driving the stirring rack to operate.

[0006] Based on the above, the beneficial effect of a detection structure for switching the position of the front and rear stirring rack gears is that it solves the problems of existing technologies where compatible toner cartridges require step-by-step assembly and disassembly of the stirring rack gears during full inspection before leaving the factory, resulting in a complex and inefficient testing process, and easily causing toner leakage pollution and potential printing quality issues. It also addresses the inability to switch gear drive states without disassembling the machine. The main advantages are:

[0007] 1. This utility model, through the outer circular rod and inner square rod at the shaft adjustment end, and the corresponding structure of the stirring rack gear, enables the direct switching of gear positions without disassembling the toner box, eliminating the cumbersome disassembly and assembly steps in the traditional method and significantly improving the detection efficiency;

[0008] 2. This utility model can perform full inspection testing simply by adjusting the position of the stirring rack gear. During the full inspection test, the stirring rack gear is blocked on the outer circular rod outside the blocking block, so that the stirring rack will not be driven to operate. This avoids the disassembly and assembly of the toner box during the full inspection, thereby preventing toner leakage caused by secondary disassembly and assembly, and also avoiding the quality risks caused by repeated disassembly and assembly.

[0009] 3. This utility model achieves the alignment and engagement of the blocking block and the slot on the stirring rack gear by the staff, realizing the engagement of the inner square rod and the square hole after full inspection, thereby easily enabling the positioning and engagement between the stirring rack gear and the stirring rack, achieving rapid positioning and stable transmission.

[0010] Furthermore, a hollow structure is cut through the middle of the outermost end of the outer circular rod to the innermost end of the inner square rod.

[0011] Based on the above, the beneficial effect of the hollow structure is that the operator can directly squeeze the outer circular rod to make the blocking block squeeze inward, so that it is no longer blocked outside the slot of the mixing rack gear. This makes the operation more convenient and reduces the difficulty of operation when switching the position of the mixing rack gear.

[0012] Furthermore, the upper and lower sides of the outer circular rod and the inner square rod are respectively formed by the hollow structure to form an upper structure and a lower structure. When the user simultaneously squeezes the upper structure and the lower structure inward, the two blocking blocks can slide smoothly into the two corresponding slots.

[0013] Based on the above, the beneficial effect of the upper and lower structures is that by squeezing the hollow structure, the two blocking blocks are no longer blocked outside the inner square rod and can slide into the slot to complete the positioning and locking.

[0014] Furthermore, the inner wall of the square hole is provided with anti-slip texture.

[0015] Based on the above, the beneficial effect of the anti-slip texture is to increase the friction between the gears of the mixing frame and the inner square rod, ensuring that the gears will not slip off accidentally during operation and enhancing the stability of the mixing structure.

[0016] Furthermore, the outer surface of the outer circular rod is made of a smooth material to achieve an idle rotation structure with the stirring rack gear.

[0017] Based on the above, the beneficial effect of the smooth material is that it allows the gears of the mixing rack to form an idle structure, reducing unnecessary wear caused by idle rotation during full inspection.

[0018] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 Figure A shows the outer side view of the positional fit between the mixing rack gear and the mixing rack during full inspection; Figure B shows the outer side view of the positional fit between the mixing rack gear and the mixing rack during normal operation.

[0020] Figure 2 Figure C shows the inner view of the positional fit between the stirring rack gear and the stirring rack during full inspection; Figure D shows the inner view of the positional fit between the stirring rack gear and the stirring rack during normal operation.

[0021] Figure 3 : This is a schematic diagram of the stirring rack gear of this utility model;

[0022] Figure 4 : This is a schematic diagram of the shaft adjustment end of this utility model.

[0023] Explanation of reference numerals in the attached figures: 1-Gear of the stirring rack, 11-Square hole, 111-Slot, 2-Stirring rack, 3-Shaft adjustment end, 31-Outer circular rod, 32-Inner square rod, 321-Blocking block, 33-Hollow structure, 34-Upper structure, 35-Lower structure. Detailed Implementation

[0024] like Figures 1-4As shown, a switching structure for detecting the position of the front and rear stirring rack gears includes: an axially movable stirring rack gear 1; a stirring rack 2 positioned and installed inside the toner cartridge; a shaft adjustment end 3 is provided on the stirring rack 2 on one side of the conductive end of the toner cartridge, the shaft adjustment end 3 is provided with an integrally formed outer circular rod 31 and an inner square rod 32, two blocking blocks 321 are symmetrically arranged on the inner square rod 32 near one end of the outer circular rod 31, the inner hole of the stirring rack gear 1 is provided with a square hole 11 that matches the inner square rod 32, and the four sides of the square hole 11 are provided with slots 111; when the toner cartridge is fully inspected, the stirring rack gear 1 retracts onto the outer circular rod 31; after the inspection is completed, the stirring rack gear 1 is pushed into the inner square rod 32, so that any two opposite slots 111 are adapted to the two blocking blocks 321, driving the stirring rack 2 to operate.

[0025] A hollow structure 33 is cut through the middle of the outermost end of the outer circular rod 31 to the innermost end of the inner square rod 32.

[0026] The upper and lower sides of the outer circular rod 31 and the inner square rod 32 are respectively formed by the hollow structure 33 to form an upper structure 34 and a lower structure 35. When the user simultaneously squeezes the upper structure 34 and the lower structure 35 inward, the two blocking blocks 321 can smoothly slide into the two corresponding slots 111.

[0027] The inner wall of the square hole 11 is provided with anti-slip texture.

[0028] The outer surface of the outer circular rod 31 is made of a smooth material to achieve an idle rotation structure with the stirring rack gear 1.

[0029] In summary, the specific embodiments of this utility model are as follows:

[0030] Before the full inspection test, the stirring rack gear 1 is in the normal working position of the inner square rod 32. At this time, the square hole 11 of the stirring rack gear 1 is fully engaged with the inner square rod 32, and the blocking block 321 is firmly locked in the slot 111 to ensure correct connection with the stirring rack 2.

[0031] When a full inspection is required, the operator or automated equipment clamps the stirring rack gear 1 and moves it outward until the hollow structure 33 opens naturally. The inner hole of the stirring rack gear 1 is completely fitted onto the outer circular rod 31 outside the blocking block 321. At this time, an idle structure is formed between the stirring rack gear 1 and the stirring rack 2. The stirring rack 2 cannot be driven to rotate by the gear. This can keep the toner box seal intact and avoid the toner box seal from failing due to the stirring rack rotating to recycle the seal.

[0032] After the full inspection is completed, the operator or automated equipment will clamp the stirring rack gear 1, rotate it and push it inward, so that the square hole 11 of the stirring rack gear 1 gradually aligns with the inner square rod 32, and the blocking block 321 smoothly slides into the corresponding slot 111 to complete the positioning. At this time, the stirring rack gear 1 and the stirring rack 2 re-establish the drive connection, and the component reset after the full inspection is completed.

[0033] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A switching structure for detecting the position of a gear of a front and rear stirring frame, characterized by, The utility model relates to a carbon powder box stirring frame structure, including: The axially movable stirring frame gear (1); The stirring frame (2) is positioned and installed in the carbon powder box; The stirring frame (2) is provided with the shaft adjusting end portion (3) on one side of the carbon powder box conductive end, the shaft adjusting end portion (3) is provided with the integral outer circular rod (31) and inner square rod (32), the inner square rod (32) is provided with two blocking clamping blocks (321) near the symmetry of one end of the outer circular rod (31), the inner hole of the stirring frame gear (1) is provided with the square hole (11) matched with the inner square rod (32), the four edges of the square hole (11) are provided with the clamping groove (111), when the carbon powder box is full detection, the stirring frame gear (1) is withdrawn to the outer circular rod (31), after detection, the stirring frame gear (1) is pushed to the inner square rod (32), so that any two opposite clamping grooves (111) are adapted to two blocking clamping blocks (321), drive the stirring frame (2) operation.

2. The transition structure for detecting the gear position of the front and rear stirring frame according to claim 1, characterized in that: The outermost end of the outer circular rod (31) to the middle of the innermost end of the inner square rod (32) is provided with hollow structure (33) cut through.

3. The transition structure for detecting the gear position of the front and rear stirring frame according to claim 2, characterized in that: The upper and lower sides of the outer circular rod (31) and inner square rod (32) form upper half structure (34) and lower half structure (35) through the hollow structure (33), when the user simultaneously presses in the upper half structure (34) and lower half structure (35), two blocking clamping blocks (321) can smoothly slide into two corresponding clamping grooves (111).

4. The transition structure for detecting the gear position of the front and rear stirring frame according to claim 1, characterized in that: The inner wall of the square hole (11) is provided with anti-skid lines.

5. The transition structure for detecting the gear position of the front and rear stirring frame according to claim 1, characterized in that: The outer surface of the outer circular rod (31) is smooth material, to realize with the stirring frame gear (1) form idle structure.