Convenient replacement structure of printer toner cartridge

By using a spring structure consisting of a positioning block and positioning groove, a fixing rod and a locking tongue, the problem of inconvenient disassembly and assembly caused by traditional screw fastening structures is solved, enabling quick replacement of printer toner cartridges and improving replacement efficiency.

CN224203575UActive Publication Date: 2026-05-05SHANXI SHANQUNXIN TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI SHANQUNXIN TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing printer toner cartridge fixing method uses a traditional screw fastening structure, which makes disassembly and assembly inconvenient and time-consuming.

Method used

It adopts a spring structure with positioning block and positioning groove, and fixing rod and locking tongue. By pressing the toner box, the fixing rod slides into the mounting box, and the locking tongue is locked into the fixing groove under the action of the spring to achieve quick installation. Quick disassembly can be achieved by adjusting the position of the locking tongue.

Benefits of technology

It enables quick installation and removal of toner cartridges, saving installation time and improving replacement efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a printer toner cartridge convenient replacement structure, and belongs to the technical field of printers, the printer toner cartridge convenient replacement structure comprises a printer main body, and the front side of the printer main body is provided with a stock bin; through cooperation between the positioning block and the positioning groove, it is ensured that accurate alignment can be achieved when the toner cartridge is inserted, the toner cartridge is pressed to enable the fixing rods on the two sides of the toner cartridge to slide into the mounting box along the fixing grooves, and in the process, the fixing rods extrude the spring bolts, so that the spring bolts retract into the telescopic grooves and extrude the springs; after the fixing rod is positioned, the spring bolt can be automatically clamped into the fixing groove under the action of the spring to limit the fixing rod, so that the carbon powder box is quickly mounted, the positions of the adjusting rod and the spring bolt are adjusted by pushing the adjusting block, the spring bolt retracts into the telescopic groove again, locking of the fixing rod can be relieved, and the carbon powder box can be quickly mounted. According to the device, the toner cartridge can be quickly disassembled, namely, the toner cartridge can be quickly disassembled and assembled, and the installation time is saved.
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Description

Technical Field

[0001] This application relates to the field of printer technology, and in particular to a convenient replacement structure for printer toner cartridges. Background Technology

[0002] The toner used in printers is mainly composed of black plastic powder. Inside the printer, there is a toner cartridge to hold the toner. When a laser printer is printing, it needs to continuously consume toner, so the toner cartridge needs to be disassembled and replaced after the toner is used up.

[0003] Existing toner cartridge fixing methods generally use traditional screw fastening structures. While this design ensures stable installation, it is inconvenient to disassemble and assemble, and takes a long time. Therefore, an improvement has been made to a convenient toner cartridge replacement structure for printers. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a convenient replacement structure for printer toner cartridges, which overcomes the shortcomings of the prior art and aims to solve the problem that the existing toner cartridge fixing method generally adopts a traditional screw fastening structure. Although this design can ensure the stability of the installation, it is inconvenient to disassemble and assemble, and takes a long time.

[0005] To achieve the above objectives, this application provides the following technical solution: a convenient toner cartridge replacement structure for a printer, comprising a printer body, a cartridge compartment on the front side of the printer body, a compartment door rotatably connected to the bottom of the cartridge compartment, an installation box slidably inserted inside the cartridge compartment, a toner cartridge placed inside the installation box, several positioning blocks fixedly connected to the bottom of the installation box, several positioning grooves adapted to the positioning blocks on the bottom of the toner cartridge, fixing grooves symmetrically opened on both sides of the upper surface of the installation box, fixing rods symmetrically connected to the outer walls of both sides of the toner cartridge, the fixing rods slidably inserted into the inside of the fixing grooves, a telescopic groove opened outside one of the fixing grooves inside the installation box, a locking tongue slidably inserted inside the telescopic groove, and the locking tongue being fixedly connected to the telescopic groove by a spring, the locking tongue being slidably inserted into the inside of the fixing groove under the elastic force of the spring to limit the fixing rod.

[0006] By adopting the above technical solution, the positioning block at the bottom of the installation box cooperates with the positioning groove at the bottom of the toner cartridge to ensure accurate alignment during insertion. By pressing the toner cartridge, the fixing rods on both sides slide into the installation box along the fixing groove. During this process, the fixing rods squeeze the locking tongue, causing the locking tongue to retract into the telescopic groove and squeeze the spring. After the fixing rods are in place, the locking tongue will automatically lock into the fixing groove under the action of the spring, limiting the fixing rods, thereby realizing the quick installation of the toner cartridge.

[0007] As a preferred technical solution of this application, the upper surface of the mounting box is provided with an adjustment groove through the telescopic groove. An adjustment rod is slidably connected inside the adjustment groove. The lower end of the adjustment rod is fixedly connected to the locking tongue, and the upper end of the adjustment rod is fixedly connected to an adjustment block.

[0008] By adopting the above technical solution, the position of the adjusting rod and the locking tongue can be adjusted by pushing the adjusting block, so that the locking tongue retracts into the telescopic groove, thereby releasing the locking of the fixing rod and realizing the quick disassembly of the toner box.

[0009] As a preferred technical solution of this application, the inner walls of the two sides of the mounting box are symmetrically provided with guide grooves, and the outer walls of the two sides of the toner box are symmetrically connected with guide plates, and the guide plates are adapted to the guide grooves.

[0010] By adopting the above technical solution, the geometric fit between the guide plate and the guide groove forms a physical constraint, guiding the toner box to slide along the preset path for installation and correction.

[0011] As a preferred technical solution of this application, the hopper is provided with a sliding groove on the outside of the mounting box, and the two outer walls of the mounting box are symmetrically connected with sliding blocks that are adapted to the sliding groove. The sliding blocks slide inside the sliding groove, and the mounting box is slidably inserted into the hopper through the sliding blocks.

[0012] By adopting the above technical solution, the installation box can be accurately installed into the silo through the cooperation between the sliding block and the sliding groove.

[0013] As a preferred technical solution of this application, a groove is provided on the front side of the mounting box, and a handle is fixedly connected to the upper surface of the toner box.

[0014] By adopting the above technical solution, the slotted opening makes it easy for workers to pull the installation box out of the hopper, and the handle provides convenience for workers to take out the toner box.

[0015] As a preferred technical solution of this application, an iron block is embedded in the front side of the silo, and a magnet is embedded in the inner wall of the silo door, wherein the magnet and the iron block are attracted by magnetism.

[0016] By adopting the above technical solution, the magnet and the iron block are tightly attached by magnetic attraction, so that the door can be automatically aligned when closed.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In this invention, the precise alignment of the toner cartridge is ensured by the cooperation between the positioning block and the positioning groove. By pressing the toner cartridge, the fixing rods on both sides slide into the mounting box along the fixing groove. During this process, the fixing rods compress the locking tongue, causing it to retract into the telescopic groove and compress the spring. Once the fixing rod is in place, the locking tongue automatically engages with the fixing groove under the action of the spring, limiting the fixing rod and thus enabling quick installation of the toner cartridge. By pushing the adjusting block to adjust the position of the adjusting rod and the locking tongue, the locking tongue retracts into the telescopic groove, releasing the locking of the fixing rod and enabling quick disassembly of the toner cartridge. In short, this device enables quick assembly and disassembly of the toner cartridge, saving installation time.

[0019] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a partial structural diagram of this application;

[0023] Figure 3 This is a partial structural breakdown diagram of this application;

[0024] Figure 4 This is a side sectional view of the mounting box of this application.

[0025] In the diagram: 1. Printer body; 2. Material bin; 3. Door; 4. Mounting box; 5. Toner cartridge; 6. Sliding groove; 7. Sliding block; 8. Positioning block; 9. Positioning groove; 10. Fixing groove; 11. Fixing rod; 12. Telescopic groove; 13. Locking tongue; 14. Spring; 15. Adjustment groove; 16. Adjustment rod; 17. Adjustment block; 18. Guide groove; 19. Guide plate; 20. Pull groove; 21. Handle; 22. Magnet; 23. Iron block. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 - Figure 4As shown, this embodiment provides a convenient toner cartridge replacement structure, including a printer body 1, a cartridge 2 on the front side of the printer body 1, a door 3 rotatably connected to the bottom of the cartridge 2, a mounting box 4 slidably inserted inside the cartridge 2, a toner cartridge 5 placed inside the mounting box 4, several positioning blocks 8 fixedly connected to the bottom of the mounting box 4, several positioning grooves 9 adapted to the positioning blocks 8 on the bottom of the toner cartridge 5, fixing grooves 10 symmetrically opened on both sides of the upper surface of the mounting box 4, fixing rods 11 symmetrically connected to the outer walls of both sides of the toner cartridge 5, the fixing rods 11 slidably inserted into the inside of the fixing grooves 10, and a telescopic groove 12 opened outside one of the fixing grooves 10 inside the mounting box 4, a locking tongue slidably inserted into the telescopic groove 12. 13. The locking tongue 13 is fixedly connected to the telescopic groove 12 by the spring 14. Under the elastic force of the spring 14, the locking tongue 13 slides into the inside of the fixed groove 10 to limit the fixed rod 11. In use, the positioning block 8 at the bottom of the mounting box 4 cooperates with the positioning groove 9 at the bottom of the toner box 5 to ensure accurate alignment when inserted. By pressing the toner box 5, the fixed rods 11 on both sides slide into the mounting box 4 along the fixed groove 10. During this process, the locking tongue 13 is squeezed by the fixed rods 11, causing the locking tongue 13 to retract into the telescopic groove 12 and squeeze the spring 14. After the fixed rod 11 is in place, the locking tongue 13 will automatically lock into the fixed groove 10 under the action of the spring 14 to limit the fixed rod 11, thereby realizing the quick installation of the toner box 5.

[0028] In this embodiment, as Figure 4 As shown, an adjustment groove 15 is provided through the upper surface of the mounting box 4 above the telescopic groove 12. An adjustment rod 16 is slidably connected inside the adjustment groove 15. The lower end of the adjustment rod 16 is fixedly connected to the locking tongue 13, and the upper end of the adjustment rod 16 is fixedly connected to the adjustment block 17. In use, by pushing the adjustment block 17, the position of the adjustment rod 16 and the locking tongue 13 is adjusted, so that the locking tongue 13 retracts back into the telescopic groove 12, thereby releasing the lock on the fixing rod 11 and realizing the quick disassembly of the toner box 5.

[0029] In this embodiment, as Figure 3 As shown, guide grooves 18 are symmetrically opened on the inner walls of both sides of the mounting box 4, and guide plates 19 are symmetrically connected to the outer walls of both sides of the toner box 5. The guide plates 19 are adapted to the guide grooves 18. In use, the geometric fit between the guide plates 19 and the guide grooves 18 forms a physical constraint, guiding the toner box 5 to slide along a preset path for installation and correction.

[0030] In this embodiment, as Figure 1 and 2As shown, the inside of the hopper 2 is provided with a sliding groove 6 on the outside of the mounting box 4. The two outer walls of the mounting box 4 are symmetrically connected with sliding blocks 7 that are adapted to the sliding groove 6. The sliding blocks 7 slide inside the sliding groove 6. The mounting box 4 is slidably inserted into the inside of the hopper 2 through the sliding blocks 7. In use, the mounting box 4 can be accurately installed into the inside of the hopper 2 through the cooperation between the sliding blocks 7 and the sliding groove 6.

[0031] In this embodiment, as Figure 3 As shown, a groove 20 is provided on the front side of the mounting box 4, and a handle 21 is fixedly connected to the upper surface of the toner box 5. In use, the groove 20 makes it easy for workers to pull the mounting box 4 out of the hopper 2, and the handle 21 provides convenience for workers to take out the toner box 5.

[0032] In this embodiment, as Figure 1 As shown, an iron block 23 is embedded in the front side of the hopper 2, and a magnet 22 is embedded in the inner wall of the hopper door 3. The magnet 22 and the iron block 23 are attracted by magnetism. When in use, the magnet 22 and the iron block 23 are tightly attached by magnetic attraction, so that the hopper door 3 can automatically align when closed.

[0033] The working principle of this utility model is as follows: When using the convenient toner cartridge replacement structure of this application, when the toner in the printer body 1 is used up, first open the compartment door 3 and pull the mounting box 4 out from the inside of the cartridge 2. By pushing the adjusting block 17, adjust the position of the adjusting rod 16 and the locking tongue 13 so that the locking tongue 13 retracts back into the telescopic groove 12, thereby releasing the lock on the fixing rod 11. The used toner cartridge 5 can then be removed from the mounting box 4. After that, take out the new toner cartridge 5, and align the positioning groove 9 at the bottom of the toner cartridge 5 with the bottom of the mounting box 4. Positioning blocks 8 are aligned. After alignment, press down on the toner box 5 so that the fixing rods 11 on both sides slide into the mounting box 4 along the fixing groove 10. During this process, the fixing rods 11 will squeeze the locking tongue 13, causing the locking tongue 13 to retract into the telescopic groove 12 and squeeze the spring 14. After the fixing rods 11 are in place, the locking tongue 13 will automatically lock into the fixing groove 10 under the action of the spring 14, limiting the fixing rods 11 and realizing the installation of the toner box 5. Finally, reinsert the mounting box 4 into the hopper 2 to complete the replacement work.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A convenient toner cartridge replacement structure for printers, comprising a printer body (1), characterized in that, The printer body (1) has a material hopper (2) on its front side. A door (3) is rotatably connected to the bottom of the material hopper (2). A mounting box (4) is slidably inserted into the inside of the material hopper (2). A toner cartridge (5) is placed inside the mounting box (4). Several positioning blocks (8) are fixedly connected to the bottom of the mounting box (4). Several positioning grooves (9) that match the positioning blocks (8) are opened on the bottom of the toner cartridge (5). Fixing grooves (10) are symmetrically opened on both sides of the upper surface of the mounting box (4). The toner cartridge (5)... The two outer walls are symmetrically connected with fixing rods (11), which are slidably inserted into the inside of the fixing groove (10). The inside of the mounting box (4) is provided with a telescopic groove (12) on the outside of one of the fixing grooves (10). A locking tongue (13) is slidably inserted into the inside of the telescopic groove (12), and the locking tongue (13) is fixedly connected to the telescopic groove (12) by a spring (14). Under the elastic force of the spring (14), the locking tongue (13) is slidably inserted into the inside of the fixing groove (10) to limit the fixing rod (11).

2. The printer toner cartridge convenient replacement structure according to claim 1, characterized in that, An adjustment groove (15) is provided on the upper surface of the mounting box (4) above the telescopic groove (12). An adjustment rod (16) is slidably connected inside the adjustment groove (15). The lower end of the adjustment rod (16) is fixedly connected to the locking tongue (13), and the upper end of the adjustment rod (16) is fixedly connected to the adjustment block (17).

3. The printer toner cartridge convenient replacement structure according to claim 1, characterized in that, The inner walls of the two sides of the mounting box (4) are symmetrically provided with guide grooves (18), and the outer walls of the two sides of the toner box (5) are symmetrically connected with guide plates (19), and the guide plates (19) are adapted to the guide grooves (18).

4. The printer toner cartridge convenient replacement structure according to claim 1, characterized in that, The hopper (2) has a sliding groove (6) located on the outside of the mounting box (4). The two outer walls of the mounting box (4) are symmetrically connected with sliding blocks (7) that are adapted to the sliding groove (6). The sliding blocks (7) slide inside the sliding groove (6). The mounting box (4) is slidably inserted into the hopper (2) through the sliding blocks (7).

5. The printer toner cartridge convenient replacement structure according to claim 1, characterized in that, The mounting box (4) has a groove (20) on the front side, and the toner box (5) has a handle (21) fixedly connected to the upper surface.

6. The printer toner cartridge convenient replacement structure according to claim 1, characterized in that, An iron block (23) is embedded in the front side of the hopper (2), and a magnet (22) is embedded in the inner wall of the hopper door (3). The magnet (22) and the iron block (23) are attracted by magnetism.