Linkage structure for selenium drum powder box

Abstract

The utility model discloses a linkage structure for a toner cartridge powder box, which comprises a support plate, a pressing mechanism and a linkage mechanism, the pressing mechanism comprises a pressing piece convexly arranged on the support plate, the linkage mechanism comprises an abutting piece convexly arranged on the support plate, when the powder box is connected with a drum frame, the abutting piece is provided with an abutting bent edge, and the abutting bent edge is connected with the support plate. When the pressing piece is pressed in the direction away from the drum frame, the pressing piece drives the supporting plate to move so as to drive the powder box to be away from the drum frame, and at the moment, the abutting bent edge keeps abutting against the drum frame and slides on the inclined surface structure in the direction away from the drum frame. According to the linkage structure based on the structure, the supporting plate, the pressing piece and the abutting piece can be integrally formed, so that on the premise that the functions of an existing linkage structure are kept, the linkage structure is further simplified, meanwhile, the overall durability of the linkage structure is higher, the production cost of the powder box is reduced, and the production efficiency of the powder box is improved. And the market competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing material equipment, and particularly relates to a linkage structure for a toner cartridge and a drum unit.

Background Art

[0002] In the component composition of a drum unit, a toner cartridge is an important component that cooperates with a drum frame. Among them, in terms of the functional requirements of printing material equipment, a structure that can separate or contact the toner cartridge and the drum frame at a short distance is provided between the existing toner cartridge and the drum frame. Specifically, it is a linkage structure that separates or contacts the developing roller in the toner cartridge and the photosensitive drum in the drum frame at a short distance. Among them, the existing linkage structure is usually driven by a lever provided at the side end of the toner cartridge, and needs to be toggled in a direction away from the drum frame. Through the lever principle, the part of the lever away from the toggling end will approach and press against the drum frame. At this time, the reaction force generated by the drum frame on the lever will drive the toner cartridge to move away from the drum frame, realizing the separation of the developing roller and the photosensitive drum; when no pressure is applied to the lever anymore, the return structure in the drum frame will drive the toner cartridge to retreat and reset. However, the existing linkage structure requires a lever with a complex structure, and a lever support structure for the lever to be hinged and swing within a certain stroke needs to be provided. The complex cooperation structure will result in poor durability, and at the same time increase the production cost of the toner cartridge. Since the toner cartridge is replaced more frequently than the drum frame, using a complex linkage structure on the toner cartridge will reduce the competitiveness of the toner cartridge in the market. Therefore, a simpler toner cartridge linkage structure is needed.

Summary of the Invention

[0003] The purpose of the utility model is to provide a simpler linkage structure for a toner cartridge and a drum unit, and solve the problems of more mating parts and higher production cost of the existing linkage structure.

[0004] The utility model provides the following technical solution: A linkage structure for a toner cartridge and a drum unit, including a support plate installed at the side end of the toner cartridge, a pressing mechanism and a linkage mechanism provided on the support plate. The pressing mechanism includes a pressing member protruding from the support plate, and the linkage mechanism includes an abutting member protruding from the support plate. When the toner cartridge is connected to the drum frame, a first arc surface is provided on the side of the abutting member close to the drum frame, and a second arc surface is provided on the side of the abutting member away from the drum frame. The intersection of the first arc surface and the second arc surface on the abutting member forms an abutting bent edge, and the abutting bent edge is used to abut against a corresponding inclined surface structure on the drum frame. When pressure is applied to the pressing member in a direction away from the drum frame, the pressing member drives the support plate to move, thereby driving the toner cartridge away from the drum frame. At this time, the abutting bent edge remains in contact with the drum frame and slides in the inclined surface structure in a direction away from the drum frame.

[0005] A linkage structure for a toner cartridge as described above, wherein the radian of the second arc surface is greater than that of the first arc surface, so that the abutting member is arranged in a crescent shape, and the abutting flange is located at one end of the abutting member close to the drum frame.

[0006] A linkage structure for a toner cartridge as described above, wherein the abutting flange extends along the length direction of the toner cartridge.

[0007] A linkage structure for a toner cartridge as described above, wherein an arc-shaped pressing surface is provided on a side of the pressing member away from the abutting member, a connecting surface is provided on a side of the pressing member close to the abutting member, and one side of the abutting member away from the abutting flange is adhesively connected to the connecting surface.

[0008] A linkage structure for a toner cartridge as described above, wherein both the pressing member and the abutting member extend convexly from the support plate along the length direction of the toner cartridge, and the extending length of the pressing member on the support plate is greater than that of the abutting member.

[0009] A linkage structure for a toner cartridge as described above, wherein a third arc surface engaging with the first arc surface is further provided on the abutting member, and one side of the third arc surface away from the first arc surface engages with the pressing surface.

[0010] A linkage structure for a toner cartridge as described above, wherein a fixing hole is formed at one end of the support plate away from the drum frame, and a corresponding structure of the toner cartridge is inserted into the fixing hole to fix the support plate on the toner cartridge.

[0011] A linkage structure for a toner cartridge as described above, wherein a fourth arc surface engaging with the second arc surface is further provided on the abutting member, one side of the fourth arc surface away from the second arc surface engages with the connecting surface, the fourth arc surface is located between the abutting member and the fixing hole, and is bent in a direction away from the fixing hole.

[0012] A linkage structure for a toner cartridge as described above, wherein a positioning buckle is provided on a side of the support plate close to the toner cartridge, and the positioning buckle is detachably connected to the toner cartridge.

[0013] A linkage structure for a toner cartridge as described above, wherein the pressing member, the abutting member and the support plate are integrally formed.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] The linkage structure for a toner cartridge of the present utility model simultaneously arranges a pressing mechanism and a linkage mechanism on a support plate. Among them, when a pressing member in the pressing mechanism is pressed in a direction away from the drum frame, a contact member in the linkage mechanism will maintain contact with the drum frame and slide along the surface of a corresponding inclined surface structure on the drum frame to stably achieve the relative separation movement of the toner cartridge and the drum frame. Specifically, in this process, a contact flange on the contact member contacts the corresponding inclined surface structure of the drum frame, and the contact flange is formed at the intersection of a first arc surface and a second arc surface on the contact member. Based on this structure, the linkage structure can achieve the integral molding of the support plate, the pressing member, and the contact member. Thus, on the premise of maintaining the functions of the existing linkage structure, the structure of the linkage structure is further simplified, and at the same time, the overall durability of the linkage structure is stronger, the production cost of the toner cartridge is reduced, and the market competitiveness of the product is improved.

Description of the Drawings

[0016] Figure 1 It is a three-dimensional schematic diagram of the linkage structure of the present utility model from the first angle.

[0017] Figure 2 It is a three-dimensional schematic diagram of the linkage structure of the present utility model from the second angle.

[0018] Figure 3 It is a three-dimensional schematic diagram of the linkage structure of the present utility model from the third angle.

[0019] Figure 4 It is a schematic diagram of the position of the linkage structure of the present utility model when installed on the toner cartridge.

[0020] Description of the reference numerals: 1. Support plate; 2. Pressing mechanism; 3. Linkage mechanism; 11. Fixed hole; 12. Positioning buckle; 21. Pressing member; 31. Contact member; 211. Pressing surface; 212. Connection surface; 311. First arc surface; 312. Second arc surface; 313. Contact flange; 314. Third arc surface; 315. Fourth arc surface.

Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to the attached Figure 1 to the attached Figure 4, this embodiment provides a linkage structure for a toner cartridge, including a support plate 1 installed on the side end of the cartridge, a pressing mechanism 2 provided on the support plate 1, and a linkage mechanism 3. The pressing mechanism 2 includes a pressing member 21 protruding from the support plate 1, and the linkage mechanism 3 includes an abutting member 31 protruding from the support plate 1. When the cartridge is connected to the drum frame, a first arc surface 311 is provided on the side of the abutting member 31 close to the drum frame, and a second arc surface 312 is provided on the side of the abutting member 31 away from the drum frame. The intersection of the first arc surface 311 and the second arc surface 312 on the abutting member 31 forms an abutting flange 313, and the abutting flange 313 is used to abut against the corresponding inclined surface structure on the drum frame. When pressing the pressing member 21 in the direction away from the drum frame, the pressing member 21 drives the support plate 1 to move, thereby driving the cartridge away from the drum frame. At this time, the abutting flange 313 remains in contact with the drum frame and slides in the direction away from the drum frame on the inclined surface structure. In the linkage structure for the toner cartridge of this embodiment, the pressing mechanism 2 and the linkage mechanism 3 are simultaneously provided on the support plate 1. Among them, when pressing the pressing member 21 in the direction away from the drum frame, the abutting member 31 in the linkage mechanism 3 will maintain contact with the drum frame and slide along the surface of the corresponding inclined surface structure on the drum frame to stably realize the relative separation movement of the cartridge and the drum frame. Specifically, the abutting flange 313 on the abutting member 31 abuts against the corresponding inclined surface structure of the drum frame, and the abutting flange 313 is formed by the intersection of the first arc surface 311 and the second arc surface 312 on the abutting member 31. Based on this structure, the linkage structure can realize the integral molding of the support plate 1, the pressing member 21, and the abutting member 31. Thus, on the premise of maintaining the functions of the existing linkage structure, the structure of the linkage structure is further simplified, and at the same time, the overall durability of the linkage structure is stronger, the production cost of the cartridge is reduced, and the market competitiveness of the product is improved.

[0023] The radian of the second arc surface 312 is greater than that of the first arc surface 311, so that the abutting member 31 is arranged in a crescent shape, and the abutting flange 313 is located at one end of the abutting member 31 close to the drum frame. This setting is to adapt to the position of the inclined surface structure relative to the linkage structure. Further, the abutting flange 313 extends along the length direction of the cartridge. By adopting this structural setting, when the abutting flange 313 contacts the inclined surface structure, the extrusion force received by the abutting flange 313 can be more evenly distributed, and the stress generated by the abutting friction between the abutting flange 313 and the inclined surface structure can be dispersed.

[0024] An arc-shaped pressing surface 211 is provided on the side of the pressing member 21 away from the abutting member 31, and a connecting surface 212 is provided on the side of the pressing member 21 close to the abutting member 31. The side of the abutting member 31 away from the abutting flange 313 is attached and connected to the connecting surface 212. The arc-shaped pressing surface 211 is more conducive to the operator pressing the pressing member 21 in different directions, improving the adaptability of the linkage structure.

[0025] The pressing member 21 and the abutting member 31 both extend and protrude from the support plate 1 along the length direction of the toner cartridge, and the extending length of the pressing member 21 on the support plate 1 is greater than that of the abutting member 31. The setting of this structure increases the effective pressing area of the pressing surface 211 relative to that, and effectively controls the extending length of the abutting member 31, having the effect of controlling costs.

[0026] The abutting member 31 is further provided with a third arc surface 314 joined to the first arc surface 311, and one side of the third arc surface 314 away from the first arc surface 311 is joined to the pressing surface 211. The setting of the third arc surface 314 provides a transition arc surface that smoothly connects the first arc surface 311 and the pressing surface 211 between the abutting member 31 and the pressing member 21, making the connection area between the abutting member 31 and the pressing member 21 have a certain strength and making the linkage of the linkage structure more stable.

[0027] One end of the support plate 1 away from the drum frame is provided with a fixing hole 11, and the corresponding structure of the toner cartridge is inserted into the fixing hole 11 to fix the support plate 1 on the toner cartridge. The setting of the fixing hole 11 improves the connection strength between the toner cartridge and the support plate 1 and makes the linkage of the linkage structure more stable.

[0028] The abutting member 31 is further provided with a fourth arc surface 315 joined to the second arc surface 312, and one side of the fourth arc surface 315 away from the second arc surface 312 is joined to the connecting surface 212. The fourth arc surface 315 is located between the abutting member 31 and the fixing hole 11 and is bent in a direction away from the fixing hole 11. The setting of the fourth arc surface 315 serves as a clearance for the fixing hole 11 between the abutting member 31 and the pressing member 21.

[0029] The support plate 1 is provided with a positioning buckle 12 on the side close to the toner cartridge, and the positioning buckle 12 is detachably connected to the toner cartridge. The positioning buckle 12 plays a pre-positioning role when the support plate 1 is installed on the side end of the toner cartridge. When the positioning buckle 12 is clamped to the toner cartridge, the fixing hole 11 is also sleeved on the screw hole column on the toner cartridge, facilitating the final fixing of the support plate 1 to the toner cartridge with screws.

[0030] Based on the above structure, the linkage structure can realize the integral molding of the support plate 1, the pressing member 21 and the abutting member 31, so as to further save the overall production cost of the toner cartridge.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linkage structure for a toner cartridge, characterized in that: The powder box comprises a support plate (1) installed at the side end of the powder box, a pressing mechanism (2) arranged on the support plate (1), and a linkage mechanism (3), wherein the pressing mechanism (2) comprises a pressing member (21) protruding from the support plate (1), and the linkage mechanism (3) comprises an abutting member (31) protruding from the support plate (1); when the powder box is connected to a drum frame, a first arc surface (311) is provided on a side of the abutting member (31) close to the drum frame, and a second arc surface (312) is provided on a side of the abutting member (31) away from the drum frame; an abutting curved edge (313) is formed at the intersection of the first arc surface (311) and the second arc surface (312) on the abutting member (31), and the abutting curved edge (313) is used to abut against a corresponding inclined surface structure located on the drum frame.

2. A linkage structure for a toner cartridge according to claim 1, characterized in that: The curvature of the second curved surface (312) is greater than that of the first curved surface (311), so that the abutting member (31) is arranged in a crescent shape, and the abutting curved edge (313) is located at one end of the abutting member (31) close to the drum frame.

3. A linkage structure for a toner cartridge according to claim 2, characterized in that: The abutting curved edge (313) is extended along the length direction of the powder box.

4. A linkage structure for a toner cartridge according to claim 2, characterized in that: A pressing surface (211) arranged in an arc shape is provided on a side of the pressing member (21) away from the abutting member (31), a connecting surface (212) is provided on a side of the pressing member (21) close to the abutting member (31), and a side of the abutting member (31) away from the abutting bent edge (313) is fitted and connected to the connecting surface (212).

5. A linkage structure for a toner cartridge according to claim 4, characterized in that: The pressing member (21) and the abutting member (31) are both extended along the length direction of the powder box and protrude from the support plate (1), and the extension length of the pressing member (21) on the support plate (1) is greater than the extension length of the abutting member (31).

6. A linkage structure for a toner cartridge according to claim 4, characterized in that: The abutment member (31) is also provided with a third arc surface (314) joined to the first arc surface (311); a side of the third arc surface (314) away from the first arc surface (311) is joined to the pressing surface (211).

7. A linkage structure for a toner cartridge according to claim 6, characterized in that: A fixing hole (11) is provided at one end of the support plate (1) away from the drum frame, and a corresponding structure of the powder box is inserted into the fixing hole (11) so as to fix the support plate (1) on the powder box.

8. The linkage structure for a toner cartridge according to claim 7, characterized in that: The abutment member (31) is also provided with a fourth arc surface (315) connected to the second arc surface (312); a side of the fourth arc surface (315) away from the second arc surface (312) is connected to the connecting surface (212); the fourth arc surface (315) is located between the abutment member (31) and the fixing hole (11), and is bent in a direction away from the fixing hole (11).

9. The linkage structure for a toner cartridge according to claim 7, characterized in that: The support plate (1) is provided with a positioning buckle (12) on one side close to the powder box, and the positioning buckle (12) is detachably connected to the powder box.

10. The linkage structure for a toner cartridge according to claim 1, characterized in that: The pressing member (21), the abutting member (31) and the supporting plate (1) are integrally formed.

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