A toner cartridge with a quick-opening and sealing positioning structure for the lid

Abstract

This utility model discloses a toner cartridge with a quick-opening and sealing positioning structure for the compartment cover, including a housing, a transmission gear, a protective cavity, a swing shaft, a connecting pin, a buffer spring, and a positioning pin. The housing has a through hole and a top cover. A shaft is provided on both sides of the top cover, and the shaft is positioned within the through hole. A half-gear is fixedly connected to the end of each shaft. Storage grooves are provided on the outer walls of both sides of the housing, and shaft holes are provided on the inner walls of the storage grooves. This utility model adopts a structured design. The device forms a stable power transmission path for opening and closing the compartment cover through the cooperation of a meshing transmission component and an elastic drive component. The pre-stored driving force of the elastic drive component can be evenly transmitted to the compartment cover through the meshing transmission component, enabling quick opening with a single trigger, eliminating the need for multiple steps and effectively solving the problem of cumbersome opening and closing in existing single-structure systems. Simultaneously, the linkage locking structure combines with the pre-tightening force of the elastic component.

Description

Technical Field

[0001] This utility model relates to the field of sealing and positioning technology, and in particular to a toner cartridge with a quick-opening and sealing positioning structure for the compartment cover. Background Technology

[0002] In the field of office printing equipment, the toner cartridge, as the core imaging component of a laser printer, directly affects efficiency and print quality due to the ease of toner replacement and the reliability of its sealing and positioning. However, existing toner cartridges still have the following technical pain points in their structural design: First, the coordination between the opening and closing and locking of the cartridge cover is insufficient, making it difficult to balance convenience and stability. In the field of laser printer toner cartridges, the cartridge cover is a key operating component for toner replacement, and its opening and closing efficiency and locking reliability directly determine the user experience. Existing toner cartridge covers mostly adopt a single drive or locking structure. For example, a pure snap-on design requires two steps: manual unlocking and lifting the cover, which is cumbersome in scenarios with high-frequency toner replacement. While a pure magnetic design simplifies the opening steps, it lacks rigid locking constraints, making it easy for the cartridge cover to open accidentally during printer operation vibrations or transportation, resulting in toner getting damp or spilling. At the same time, some locking structures are rigidly fitted without an elastic compensation mechanism, and when the cartridge cover or shell... When the body undergoes slight deformation due to changes in ambient temperature, problems such as increased locking gaps and insecure locking can easily occur, further exacerbating the contradiction between convenience and stability. Secondly, accurate positioning of the toner cartridge is a core prerequisite for avoiding toner leakage from the feed port. Existing toner cartridges mostly rely on simple slots and protrusions to achieve toner cartridge positioning, which can only meet the needs of rough alignment. Precise alignment is required during installation to ensure a seal on the mating surface, resulting in a low tolerance for operational errors. Moreover, the continuous vibration of the printer during operation can easily cause the mating surface between the toner cartridge and the housing to shift, increasing the sealing gap and causing toner leakage. In addition, the transmission components inside the toner cartridge used to drive the opening and closing of the cartridge cover are mostly directly exposed to the inner cavity of the housing or the external environment. Impurities such as toner dust and paper fibers generated during printer operation can easily adhere to the surface of the transmission components, causing wear on gear meshing, spring jamming, shortening the service life of components, and increasing the maintenance cost of the toner cartridge. Existing designs have not formed an effective protective solution for this problem. Utility Model Content

[0003] The purpose of this invention is to provide a toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a toner cartridge with a quick-opening and sealing positioning structure, comprising a housing, a through hole in the housing, a top cover on the housing, and shafts on both sides of the top cover, the shafts being disposed within the through hole, with a half gear fixedly connected to the end of the shaft. Storage grooves are provided on both outer walls of the housing, and shaft holes are provided on the inner walls of the storage grooves, with a rotating shaft sleeved within the shaft holes. A transmission gear is meshed with the half gear, and one end of the transmission gear is disposed within the rotating shaft. A fixing post is provided on one side of the outer wall of the transmission gear. A meshing groove is provided on one side of the outer wall of the fixing post. A torque spring is provided on the side of the fixing post. A meshing hook surface is provided at the center of the torque spring and is engaged in the meshing groove. A protective cavity is provided on the outer side of the storage groove. A first mounting hole is provided on the outer wall of the protective cavity. A second mounting hole is provided on the inner wall of the storage groove at the position corresponding to the first mounting hole. Mounting bolts are provided in both the first and second mounting holes. A slot is provided in the protective cavity at the position corresponding to the half gear.

[0005] As a further technical solution of this utility model, a groove is provided in one side of the upper cover, a sliding groove is provided in the groove, a push block is provided in the groove, a slider is fixedly connected to the bottom outer surface of the push block, and the slider is provided in the sliding groove. A cavity is provided in the housing, and the upper cover is provided above the cavity.

[0006] As a further technical solution of this utility model, a first limiting pin is provided on one side of the outer wall of the slider, and a pressure spring is sleeved on the outer side of the first limiting pin. An installation groove is opened on one side of the upper cover, and the pressure spring is set in the installation groove. A fixing member is provided on the other side of the outer wall of the slider, and a swing shaft is provided on the fixing member. A locking block is provided on the outer side of the fixing member. A clamping hole is opened on the locking block at the position corresponding to the swing shaft, and the clamping hole is set on the swing shaft. A locking groove is opened on the housing at the position corresponding to the locking block.

[0007] As a further technical solution of this utility model, a limiting hole is provided on one side of the inner wall of the mounting groove, a second limiting pin is fixedly connected in the limiting hole, and the end of the pressure spring is set in the limiting hole.

[0008] As a further technical solution of this utility model, guide strips are provided on both sides of the inner wall of the cavity, and positioning holes are provided on the bottom inner wall of the cavity, and a toner cartridge is provided inside the cavity.

[0009] As a further technical solution of this utility model, a guide groove is provided at the position of the guide strip of the toner cartridge, and a hole groove is provided at the position of the positioning hole on the bottom outer surface of the toner cartridge, and a connecting pin is fixedly connected in the hole groove.

[0010] As a further technical solution of this utility model, a connecting hole is provided on the connecting pin, a positioning pin is provided at the end of the connecting pin, the top of the positioning pin is provided in the connecting hole, and a buffer spring is sleeved on the outer wall of the positioning pin.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model adopts a structured design. The device forms a stable power transmission path for opening and closing the cartridge cover through the cooperation of the meshing transmission component and the elastic drive component. The driving force pre-stored by the elastic drive component can be evenly transmitted to the cartridge cover through the meshing transmission component, realizing rapid opening with a single trigger without multiple steps. This effectively solves the problem of cumbersome opening and closing of the existing single structure. At the same time, the linkage locking structure combined with the pre-tightening force of the elastic component can realize the elastic fitting and locking of the cartridge cover and the shell. Even if the cartridge cover or the shell undergoes slight deformation, the compensation effect of the elastic component can still maintain the stability of the locking gap, avoiding accidental opening caused by vibration. This completely solves the technical contradiction of difficulty in balancing convenience and stability in the existing design, significantly improving the ease of use and environmental adaptability of the toner cartridge. Furthermore, the device first achieves preliminary radial anti-displacement of the toner cartridge through the guide structure, reducing the difficulty of installation alignment. Then, the elastic positioning component completes the axial precise positioning, ensuring the stability of the sealing gap between the toner cartridge and the shell mating surface, effectively avoiding toner leakage caused by positioning displacement, and ensuring print quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is an exploded view of the structure of this utility model;

[0015] Figure 3 This is a rear-view exploded structural view of the present invention;

[0016] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0017] Figure 5 This is an exploded cross-sectional view of the top cover of this utility model.

[0018] Figure 6 This is an exploded view of the toner cartridge of this utility model from below.

[0019] In the diagram: 1. Housing; 2. Through hole; 3. Top cover; 4. Shaft; 5. Half gear; 6. Storage groove; 7. Shaft hole; 8. Rotating shaft; 9. Transmission gear; 10. Fixed post; 11. Engaging groove; 12. Torque spring; 13. Engaging hook surface; 14. Protective cavity; 15. Hollow groove; 16. First mounting hole; 17. Second mounting hole; 18. Mounting bolt; 19. Groove; 20. Slide groove; 21. Push block; 22. 23. Slider; 24. First limit pin; 25. Pressure spring; 26. Fixing component; 27. Swing shaft; 28. Locking block; 29. ​​Clamping hole; 30. Mounting groove; 31. Limiting hole; 32. Second limit pin; 33. Locking groove; 34. Cavity; 35. Guide strip; 36. Positioning hole; 37. Toner cartridge; 38. Guide groove; 39. Hole groove; 40. Connecting pin; 41. Connecting hole; 42. Buffer spring; 43. Positioning pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see the appendix Figure 1 -Appendix Figure 6This utility model provides an embodiment of a toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover. The cartridge includes a housing 1 with a through hole 2 and a top cover 3. A shaft post 4 is located on both sides of the top cover 3, within the through hole 2. A half-gear 5 is fixedly connected to the end of each shaft post 4. Storage grooves 6 are located on the outer walls of both sides of the housing 1. Shaft holes 7 are located on the inner walls of the storage grooves 6, and a rotating shaft 8 is fitted into each shaft hole 7. A transmission gear 9 is meshed with the half-gear 5, with one end of the transmission gear 9 located within the rotating shaft 8. A fixing post 10 is located on one outer wall of the transmission gear 9, and a meshing groove 11 is located on one outer wall of the fixing post 10. A torque distribution point is located on the side of the fixing post 10. Spring 12, a torque spring 12, has a hook surface 13 at its center, which engages with a groove 11. A protective cavity 14 is provided on the outer side of the storage groove 6, and a first mounting hole 16 is formed on the outer wall of the protective cavity 14. A second mounting hole 17 is formed on the inner wall of the storage groove 6 corresponding to the first mounting hole 16. Mounting bolts 18 are provided in both the first and second mounting holes 16. A slot 15 is formed in the protective cavity 14 corresponding to the position of the half gear 5. A groove 19 is formed on one side of the upper cover 3, and a sliding groove 20 is formed on the groove 19. A push block 21 is provided on the groove 19, and a slider 22 is fixedly connected to the bottom outer surface of the push block 21, with the slider 22 positioned within the sliding groove 20. A cavity 33 is formed inside the housing 1, and the upper cover 3 is positioned above the cavity 33. The slider 22 can slide along the slide groove 20 to drive the push block 21 to move. The cavity 33 is used to accommodate the toner cartridge 36. A first limiting pin 23 is provided on one outer wall of the slider 22, and a pressure spring 24 is sleeved on the outside of the first limiting pin 23. A mounting groove 29 is formed on one side of the upper cover 3, and the pressure spring 24 is located in the mounting groove 29. A fixing member 25 is provided on the other outer wall of the slider 22, and a swing shaft 26 is provided on the fixing member 25. A locking block 27 is provided on the outside of the fixing member 25. A clamping hole 28 is formed on the locking block 27 corresponding to the position of the swing shaft 26, and the clamping hole 28 is located on the swing shaft 26. The housing 1 is positioned corresponding to the position of the locking block 27. A locking groove 32 is provided, and a pressure spring 24 can drive the slider 22 to reset. The locking block 27 can rotate around the swing shaft 26 and be engaged in the locking groove 32, so as to lock the upper cover 3 and the housing 1. A limit hole 30 is provided on one side of the inner wall of the mounting groove 29. A second limit pin 31 is fixedly connected in the limit hole 30. The end of the pressure spring 24 is set in the limit hole 30. The second limit pin 31 cooperates with the limit hole 30 to limit the extension and retraction of the pressure spring 24 and prevent it from deviating. Guide strips 34 are provided on both sides of the inner wall of the cavity 33, and a positioning hole 35 is provided on the bottom inner wall of the cavity 33. A toner cartridge 36 is provided in the cavity 33. The guide strips 34 guide the installation of the toner cartridge 36, and the positioning hole 35 cooperates with the toner cartridge 36 to achieve precise positioning.A guide groove 37 is provided at the position corresponding to the guide strip 34 of the toner cartridge 36. A slot 38 is provided on the bottom outer surface of the toner cartridge 36 at the position corresponding to the positioning hole 35. A connecting pin 39 is fixedly connected in the slot 38. The guide groove 37 is adapted to the guide strip 34 for auxiliary installation. The connecting pin 39 is fixed to the toner cartridge 36 through the slot 38. A connecting hole 40 is provided on the connecting pin 39. A positioning pin 42 is provided at the end of the connecting pin 39. The top of the positioning pin 42 is located in the connecting hole 40. A buffer spring 41 is sleeved on the outer wall of the positioning pin 42. The positioning pin 42 cooperates with the connecting pin 39 through the connecting hole 40. The buffer spring 41 buffers the installation impact force and assists in positioning.

[0022] Working Principle: Using this invention, firstly, the protective cavity 14 is fastened to the receiving grooves 6 on both sides of the outer wall of the housing 1, aligning the empty groove 15 of the protective cavity 14 with the position of the half gear 5 inside the receiving groove 6, reserving transmission space for subsequent gear meshing. Then, the mounting bolts 18 are sequentially inserted into the first mounting hole 16 of the protective cavity 14 and the second mounting hole 17 corresponding to the position on the inner wall of the receiving groove 6. Tightening the mounting bolts 18 secures the protective cavity 14 to the housing 1. During this process, the protective cavity 14 forms a physical barrier, preventing toner dust, paper fibers, and other impurities generated during printer operation from entering the receiving groove 6, thus avoiding contamination of internal transmission components that could lead to jamming or wear. Finally, the upper cover 3 is closed towards the housing 1, precisely inserting the shafts 4 on both sides of the upper cover 3 into the pre-set positions of the housing 1. As the upper cover 3 is continuously pressed down through the through hole 2, the shaft 4 rotates with the upper cover 3 and drives the half gear 5 fixedly connected to its end to rotate synchronously. The half gear 5 and the transmission gear 9 in the storage groove 6 are engaged with the rotating shaft 8 in the shaft hole 7 on the inner wall of the storage groove 6, driving the transmission gear 9 to rotate around the rotating shaft 8. Since the fixed post 10 on one side of the outer wall of the transmission gear 9 and the torque spring 12 are engaged through the engagement groove 11 and engagement hook surface 13, and the engagement hook surface 13 of the torque spring 12 is embedded in the engagement groove 11 of the fixed post 10, when the fixed post 10 rotates with the transmission gear 9, it will drive the torque spring 12 to twist and store preload until the upper cover 3 completely covers the cavity 33 of the housing 1. The torque spring 12 completes energy storage and maintains a stable preload state. When the upper cover 3 closes, the torque spring 12 completes energy storage and maintains a stable preload state. At the same time, the push block 21 in the groove 19 on one side of the upper cover 3 moves synchronously with the upper cover 3. The slider 22, which is fixedly connected to the bottom of the push block 21, slides naturally along the slide groove 20 on the inner wall of the groove 19. The pressure spring 24, which is sleeved on the first limiting pin 23 fixed on the outer wall of one side of the slider 22, is in a naturally extended state in the mounting groove 29 inside the upper cover 3. Under the action of the elastic force, it pushes the slider 22 to move closer to the housing 1. The fixing part 25 on the outer wall of the other side of the slider 22 moves with the slider 22. The swing shaft 26 on the fixing part 25 passes through the clamping hole 28 of the locking block 27, which drives the locking block 27 to make a slight adjustment of the angle around the swing shaft 26. Finally, the locking block 27 is precisely embedded in the locking groove 32 at the corresponding position of the housing 1, realizing the mechanical locking of the upper cover 3 and the housing 1. During this process, the pressure spring The end of spring 24 extends into the limiting hole 30 on the inner wall of the mounting groove 29. The second limiting pin 31 fixed in the limiting hole 30 provides axial limiting for the pressure spring 24, preventing lateral displacement when the pressure spring 24 is compressed or extended, and ensuring stable locking action. When the top cover 3 needs to be opened to replace the toner, push block 21 is pushed away from locking block 27 along the groove 19 of the top cover 3. Push block 21 drives slider 22 to slide along the slide groove 20. Slider 22 compresses pressure spring 24, and pressure spring 24 contracts axially along the second limiting pin 31. At the same time, it drives the fixing part 25 and the swing shaft 26 to move synchronously, causing locking block 27 to disengage from the locking groove 32 of housing 1, releasing the mechanical lock of top cover 3. After the lock is released, torque spring 12 instantly releases the pre-stored preload.The hook surface 13 drives the fixing post 10 to rotate in the opposite direction. The fixing post 10 drives the transmission gear 9 to rotate in the opposite direction around the rotating shaft 8. The transmission gear 9 meshes and drives the half gear 5 and the shaft post 4 to rotate. Finally, it drives the upper cover 3 to flip open around the axis of the through hole 2. The upper cover 3 remains in a stable open state until the tension of the torque spring 12 is released, which facilitates the subsequent removal and placement of the toner cartridge 36. The guide grooves 37 opened on the outer walls of both sides of the toner cartridge 36 correspond to the positions of the guide strips 34 on the inner walls of both sides of the cavity 33. The toner cartridge 36 slides along the guide strips 34. The cooperation between the guide strips 34 and the guide grooves 37 achieves the initial radial positioning of the toner cartridge 36, preventing the toner cartridge 36 from being misaligned when inserted. The toner cartridge 36 is continuously pushed in until the hole groove 38 on the bottom outer surface of the toner cartridge 36 is reached. The internally fixed connecting pin 39 has a slot 38 corresponding to the positioning hole 35 on the bottom inner wall of the cavity 33, and is aligned with the positioning hole 35. At this time, the top of the positioning pin 42 at the end of the connecting pin 39 passes through a buffer spring 41 fitted inside and outside the connecting hole 40 of the connecting pin 39. Under the action of elastic force, the positioning pin 42 moves downward, causing its lower end to embed into the positioning hole 35 of the cavity 33, thus completing the precise axial positioning of the toner cartridge 36. The buffer spring 41 can absorb vibration energy through its own elastic deformation when the printer vibrates during operation, preventing hard contact between the toner cartridge 36 and the inner wall of the cavity 33, which could lead to positioning misalignment. Simultaneously, it ensures a stable sealing gap between the toner cartridge 36's discharge port and the mating surface of the housing 1, preventing toner leakage.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover, comprising a housing (1), characterized in that: The housing (1) has a through hole (2) and a top cover (3) on the housing (1). A shaft post (4) is provided on both sides of the top cover (3). The shaft post (4) is located inside the through hole (2), and a half gear (5) is fixedly connected to the end of the shaft post (4). Storage grooves (6) are provided on both outer walls of the housing (1). A shaft hole (7) is provided on the inner wall of the storage groove (6), and a rotating shaft (8) is fitted inside the shaft hole (7). A transmission gear (9) is meshed on the half gear (5), and one end of the transmission gear (9) is located inside the rotating shaft (8). A fixing post (10) is provided on one outer wall of the transmission gear (9), and a half gear (5) is fixed on one outer wall of the fixing post (10). A meshing groove (11) is provided, and a torque spring (12) is provided on the side of the fixing column (10). A meshing hook surface (13) is provided at the center of the torque spring (12), and the meshing hook surface (13) is engaged in the meshing groove (11). A protective cavity (14) is provided on the outside of the storage groove (6), and a first mounting hole (16) is provided on the outer wall of the protective cavity (14). A second mounting hole (17) is provided on the inner wall of the storage groove (6) at the position corresponding to the first mounting hole (16). Mounting bolts (18) are provided in both the first mounting hole (16) and the second mounting hole (17). A slot (15) is provided in the protective cavity (14) at the position corresponding to the half gear (5).

2. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 1, characterized in that: A groove (19) is provided on one side of the upper cover (3), a sliding groove (20) is provided on the groove (19), a push block (21) is provided on the groove (19), a slider (22) is fixedly connected to the bottom outer surface of the push block (21), and the slider (22) is provided in the sliding groove (20). A cavity (33) is provided in the housing (1), and the upper cover (3) is provided above the cavity (33).

3. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 2, characterized in that: A first limiting pin (23) is provided on one side of the outer wall of the slider (22), and a pressure spring (24) is sleeved on the outside of the first limiting pin (23). An installation groove (29) is opened on one side of the upper cover (3), and the pressure spring (24) is set in the installation groove (29). A fixing member (25) is provided on the other side of the outer wall of the slider (22), and a swing shaft (26) is provided on the fixing member (25). A locking block (27) is provided on the outside of the fixing member (25). A clamping hole (28) is opened on the locking block (27) corresponding to the position of the swing shaft (26), and the clamping hole (28) is set on the swing shaft (26). A locking groove (32) is opened on the housing (1) corresponding to the position of the locking block (27).

4. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 3, characterized in that: A limiting hole (30) is provided on one side of the inner wall of the mounting groove (29). A second limiting pin (31) is fixedly connected in the limiting hole (30), and the end of the pressure spring (24) is set in the limiting hole (30).

5. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 2, characterized in that: Guide strips (34) are provided on both sides of the inner wall of the cavity (33), and positioning holes (35) are provided on the bottom inner wall of the cavity (33). A toner cartridge (36) is provided inside the cavity (33).

6. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 5, characterized in that: The toner cartridge (36) has a guide groove (37) at the position corresponding to the guide strip (34), and a hole groove (38) is formed on the bottom outer surface of the toner cartridge (36) at the position corresponding to the positioning hole (35). A connecting pin (39) is fixedly connected in the hole groove (38).

7. A toner cartridge with a quick-opening and sealing positioning structure for the cartridge cover according to claim 6, characterized in that: The connecting pin (39) has a connecting hole (40), and a positioning pin (42) is provided at the end of the connecting pin (39). The top end of the positioning pin (42) is located in the connecting hole (40), and a buffer spring (41) is sleeved on the outer wall of the positioning pin (42).

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