Gear connecting structure and processing box comprising same

Abstract

The utility model discloses a gear connecting structure and a processing box comprising the same. The gear connecting structure is applied to the processing box and comprises a shell used for being connected with the processing box, and a mounting cavity used for mounting a gear is formed in the end of the shell; the mounting panel is fixedly connected to the shell and is positioned in the mounting cavity; and the mounting column is vertically connected to the mounting panel, and the gear is rotatably connected to the mounting column. Wherein a through hole through which a roller shaft of a stirring roller in the processing box can pass is formed in the middle position of the mounting panel. The processing box can effectively solve the problems that the strength is reduced and the processing box is easy to break due to the fact that a plurality of mounting columns are arranged on the shell of the existing processing box.

Description

Technical Field

[0001] This application relates to the field of gear connection technology for processing boxes, and more particularly to a gear connection structure and a processing box including the gear connection structure. Background Technology

[0002] Laser printers use binary data information transmitted from a computer, which is converted into video signals by a video controller, and then into laser drive signals by a video interface / control system. The laser scanning system generates a laser beam carrying character information, and the electrophotographic system images the laser beam and transfers it onto a recording medium.

[0003] Laser imaging technology involves charging the surface of a photosensitive drum made of selenium, a non-metallic photosensitive material, and exposing it with a laser beam to form an electrostatic latent image. This image is then developed by a magnetic brush developer, turning it into a toner image. Under the action of the electric field of the transfer electrode, the image is transferred onto ordinary paper. Finally, the image is fixed and melted by a preheating plate and a high-temperature hot roller to produce text and images.

[0004] Currently, the various roller drives are driven by the power output shaft of the laser printer. The photosensitive drum is generally the first component to receive the driving force, which is then transmitted to roller components such as the developing roller, powder feeding roller, charging roller, and stirring roller. Different gears need to be installed to transmit the driving force.

[0005] However, the gears of the current processing box are usually mounted on mounting posts that are injection molded into the housing. Multiple mounting posts extend outward from the side of the housing. Because the housing is wide, the multiple mounting posts that are injection molded into the housing will reduce its strength and make it easy to break. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide a gear connection structure and a processing box including the same, which can solve the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] This utility model discloses a gear connection structure applied to a processing box, comprising:

[0009] The housing has a mounting cavity at one end for mounting gears;

[0010] The mounting panel is fixedly connected to the housing and located within the mounting cavity; and

[0011] The mounting post is vertically connected to the mounting panel, and the gear is rotatably connected to the mounting post;

[0012] The mounting panel has a through hole in the middle that allows the roller shaft of the stirring roller in the processing box to pass through.

[0013] On the one hand, an upper top surface and a lower top surface are provided in the mounting cavity of the housing;

[0014] The upper surface of the mounting panel is attached to the upper top surface, and the lower surface of the mounting panel is attached to the lower top surface.

[0015] On the one hand, a connection hole is provided on the side wall of the mounting cavity of the housing;

[0016] One end of the roller shaft of the stirring roller passes through the connecting hole and is positioned inside the through hole.

[0017] On one hand, a protrusion is provided on the side of the mounting panel, and the protrusion is located on the outer periphery of the through hole.

[0018] On the one hand, the protrusion is partially engaged within the connecting hole.

[0019] On the one hand, it also includes a sealing element disposed in the through hole, the sealing element being used to seal the connection between the roller shaft of the stirring roller and the through hole.

[0020] On one hand, the sealing element is connected to the inner wall of the through hole by a snap-fit ​​structure, the snap-fit ​​structure including: a groove formed on the inner wall of the through hole, and a limiting protrusion disposed on the outer edge of the sealing element and corresponding to the position of the groove; wherein, the limiting protrusion snaps into the groove.

[0021] On one hand, the mounting post includes a first mounting post and a second mounting post, and the gear includes a first idler gear and a second idler gear; wherein, the first idler gear is connected to the first mounting post, the second idler gear is connected to the second mounting post, and the first idler gear and the second idler gear mesh.

[0022] On one hand, the mounting panel has bolt holes for connecting the waste powder blade of the processing box.

[0023] This utility model also provides a processing box, which includes the gear connection structure as described in any of the preceding claims.

[0024] The beneficial effects of this application are as follows:

[0025] 1. By changing the mounting posts from direct connection to the housing to fixed to an independent mounting panel, the strength of the housing is not weakened due to the presence of multiple mounting posts. The mounting panel bears the main load of the gear transmission, while the housing only serves as a supporting foundation. This significantly reduces the risk of breakage of the housing due to structural weakness or concentrated load, and improves the overall structural reliability of the processing box.

[0026] 2. By tightly fitting the mounting panel to the upper and lower surfaces of the housing mounting cavity, a bidirectional rigid limit is formed, effectively constraining the vertical displacement or wobbling of the panel, avoiding gear meshing deviation, and ensuring transmission stability. Simultaneously, the mounting column is vertically fixed to the mounting panel, forming an independent support structure, ensuring the coaxiality and stability of the gear installation, and reducing wobbling or eccentricity during rotation.

[0027] 3. By integrating the first and second idler wheels onto the mounting panel via mounting columns, an independent transmission unit is formed. The transmission ratio or power transmission direction can be flexibly adjusted. The rigid support of the panel maintains the meshing accuracy, avoiding gear misalignment caused by housing deformation. This ensures that the main motor power is smoothly transmitted to components such as the stirring roller and developing roller, thereby improving the reliability of system operation. Attached Figure Description

[0028] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the overall structure of the processing box of this utility model;

[0030] Figure 2 This is a schematic diagram of the mounting cavity of the gear connection structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the mounting panel of the gear connection structure of this utility model;

[0032] Figure 4 This is a front view of the mounting panel and housing of the gear connection structure of this utility model;

[0033] Figure 5 This is a partial structural schematic diagram of the mounting cavity position of the gear connection structure of this utility model from an isometric perspective.

[0034] Figure 6 This is a schematic diagram of the mounting panel and sealing element of the gear connection structure of this utility model.

[0035] In the picture:

[0036] 100. Housing; 101. Mounting cavity; 1001. Top surface; 1002. Bottom surface; 1003. Connecting hole; 200. Mounting panel; 201. Protrusion; 210. Through hole; 220. Bolt hole; 300. Mounting post; 310. First mounting post; 311. First idler wheel; 320. Second mounting post; 322. Second idler wheel; 400. Roller shaft; 500. Seal; 510. Groove; 520. Limiting protrusion. Detailed Implementation

[0037] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] Please see Figures 1 to 6 This utility model discloses a gear connection structure applied to a processing box. The gear connection structure effectively improves the current processing box's reduced strength and susceptibility to breakage caused by multiple mounting posts 300 on the housing 100.

[0044] Specifically, the gear connection structure of the processing box disclosed herein includes a housing 100, a mounting panel 200, and a mounting post 300. The mounting panel 200 is connected to the housing 100, and the mounting post 300 is connected to the housing 100. A mounting cavity 101 for mounting the gear is provided at the end of the housing 100. The mounting panel 200 is fixedly connected to the housing 100 and located within the mounting cavity 101. The mounting post 300 is vertically fixed to the mounting panel 200, and the gear is rotatably mounted on the mounting post 300. By changing the direct connection of the mounting post 300 from the housing 100 to a fixed connection to the independent mounting panel 200, the problem of weakening the strength of the housing 100 caused by having multiple mounting posts 300 on the housing 100 is avoided. The mounting panel 200 bears the main load for gear installation and stress, while the housing 100 only serves as a supporting foundation for the mounting panel 200. This reduces the risk of breakage of the housing 100 due to the dense arrangement or weak structure of the mounting posts 300, and improves the overall structural reliability.

[0045] Furthermore, the mounting post 300 is vertically fixed to the mounting panel 200, forming an independent gear mounting support structure. This ensures the coaxiality and stability of the gear mounting, reduces shaking or eccentricity during gear rotation, thereby improving the accuracy and smoothness of gear transmission and reducing wear or noise problems caused by installation deviations. Simultaneously, the housing 100 does not require direct machining of the complex multi-mounting post 300 structure; only the connection structure between the mounting cavity 101 and the mounting panel 200 is needed. This effectively simplifies the mold design and machining difficulty of the housing 100, reducing manufacturing errors. As an independent component, the mounting panel 200 can be pre-assembled with the gears and mounting posts 300 before being connected to the housing 100 as a whole, improving assembly efficiency.

[0046] Furthermore, by setting the mounting panel 200 within the mounting cavity 101 of the housing 100, an integrated design is formed. The gear mounting structure can be rationally arranged within a limited space, ensuring the motion space required for gear transmission while avoiding the structural bulkiness caused by directly mounting multiple columns in the traditional housing 100. This is suitable for the miniaturization and compact design requirements of image forming equipment.

[0047] Please see Figure 4 and Figure 5 In one embodiment, an upper top surface 1001 and a lower top surface 1002 may be provided within the mounting cavity 101 of the housing 100. The upper surface of the mounting panel 200 is in contact with the upper top surface 1001, and the lower surface of the mounting panel 200 is in contact with the lower top surface 1002. By tightly fitting the upper and lower surfaces of the mounting panel 200 to the upper top surface 1001 and the lower top surface 1002 of the mounting cavity 101 of the housing 100, a bidirectional limiting support is formed, effectively constraining the vertical displacement or swaying of the panel, avoiding gear meshing deviation caused by panel loosening, and ensuring the stability and reliability of gear transmission.

[0048] Furthermore, the gear transmission load borne by the mounting panel 200 is evenly transmitted to the housing 100 through the upper and lower contact surfaces, avoiding local stress concentration caused by single-point or unilateral force, thereby improving the rigidity of the overall structure of the housing 100 and the mounting panel 200 and reducing the risk of deformation under long-term stress.

[0049] Please see Figure 4 and Figure 5 In one embodiment, a through hole 210 is provided in the middle of the mounting panel 200, allowing the roller shaft 400 of the stirring roller in the processing box to pass through. At the same time, a connecting hole 1003 is provided on the side wall of the mounting cavity 101 of the housing 100, and one end of the roller shaft 400 of the stirring roller passes through the connecting hole 1003 and is disposed in the through hole 210.

[0050] It should be noted that a protrusion 201 is provided on the side of the mounting panel 200. The protrusion 201 is located on the outer periphery of the through hole 210, and the protrusion 201 is partially engaged in the connection hole 1003.

[0051] Understandably, the through hole 210 of the mounting panel 200 mates with the connecting hole 1003 of the housing 100 to form a dual positioning of the roller shaft 400. This ensures the perpendicularity and coaxiality of the roller shaft 400 axis with the mounting column 300, preventing roller shaft 400 jamming, eccentric wear, or increased transmission resistance due to installation deviations. This ensures stable rotation of the mixing roller and uniform mixing of materials in the image forming equipment. Simultaneously, by engaging the protrusion 201 of the mounting panel 200 near the housing 100 within the connecting hole 1003, a mechanical engagement structure is formed, rigidly connecting the panel to the side wall of the housing 100. This effectively resists radial force, torque, or vibration load generated during roller shaft 400 rotation, preventing displacement or loosening of the mounting panel 200 and improving the overall structure's impact resistance and long-term operational reliability.

[0052] Furthermore, the snap-fit ​​engagement between the protrusion 201 and the connecting hole 1003 provides a clear assembly positioning reference, enabling rapid positioning of the mounting panel 200 without the need for additional fasteners (such as screws or clips). This effectively reduces assembly steps and manual adjustment costs, while also preventing roller 400 installation misalignment due to multi-component misalignment, thus improving production efficiency and assembly accuracy.

[0053] Please see Figures 2 to 6 To improve the sealing performance of the connection between the stirring roller and the through hole 210, a seal 500 may be provided within the through hole 210. The seal 500 is used to seal the connection between the roller shaft 400 of the stirring roller and the through hole 210.

[0054] Furthermore, the seal 500 is connected to the inner wall of the through hole 210 by a snap-fit ​​structure, which includes a slot 510 formed in the inner wall of the through hole 210 and a limiting protrusion 520 provided on the outer edge of the seal 500 and corresponding to the position of the slot 510.

[0055] Understandably, the seal 500 fills the gap between the roller 400 and the through hole 210, effectively preventing dust, toner, or external impurities generated during the operation of the image forming equipment from entering the mounting cavity 101 through the connection. This avoids wear, jamming, or failure of transmission components such as gears and bearings due to contamination, extending the service life of the processing box and the equipment. It is especially suitable for image forming scenarios with extremely high cleanliness requirements (such as printers and copiers), preventing contaminants from affecting the material uniformity of the mixing roller or causing internal contamination of the equipment, and ensuring stable imaging quality.

[0056] Meanwhile, the snap-fit ​​between the limiting protrusion 520 and the groove 510 provides effective mechanical locking for the seal 500, ensuring that the seal 500 does not undergo axial or circumferential displacement within the through hole 210. Even under high-frequency vibration of the equipment, high-speed rotation of the roller 400, or long-term use, the stability of the sealing position can be maintained, avoiding the problems of seal 500 falling off or deforming that may occur with traditional interference fits or adhesive bonding. Furthermore, the precise positioning through the snap-fit ​​structure eliminates the need for additional calibration during installation of the seal 500, achieving coaxial alignment directly through the structural fit, ensuring concentric sealing between the seal 500 and the roller 400, and improving the uniformity of the sealing effect.

[0057] Please see Figures 2 to 6In one embodiment, the mounting post 300 includes a first mounting post 310 and a second mounting post 320, and the gear includes a first idler gear 311 and a second idler gear 322. The first idler gear 311 is connected to the first mounting post 310, and the second idler gear 322 is connected to the second mounting post 320, with the first idler gear 311 and the second idler gear 322 meshing. The first idler gear 311 and the second idler gear 322 are fixed to the mounting panel 200 via the mounting post 300, forming an independent gear transmission unit. This allows for flexible adjustment of the transmission ratio or change of the power transmission direction, ensuring that the power in the image forming equipment (such as the driving force from the main motor) is smoothly transmitted to other components through the meshing of the idler gears. Simultaneously, the two idler gears are mounted on the same mounting panel 200, relying on the rigid support of the panel to maintain coaxiality and meshing accuracy, avoiding gear misalignment caused by deformation of the housing 100, and ensuring long-term transmission reliability.

[0058] It should be noted that the mounting panel 200 also has bolt holes 220 for connecting the waste powder blade of the processing box. The mounting panel 200 directly has bolt holes 220 for connecting the waste powder blade, eliminating the need for additional mounting structures on the housing 100, effectively preventing the housing 100 from being weakened by multiple holes. At the same time, the mounting panel 200 distributes the load of the waste powder blade (such as the contact force during scraping) throughout the entire mounting cavity 101 of the housing 100, reducing localized stress concentration.

[0059] Based on the above embodiments, the present invention also provides a processing box, which includes the gear connection structure as described in any of the above embodiments.

[0060] In summary, this utility model discloses a gear connection structure and a processing box including the same. The gear connection structure changes the direct connection of the mounting post 300 from the housing 100 to a fixed connection to an independent mounting panel 200, avoiding the weakening of the housing 100's strength caused by having multiple mounting posts 300. The mounting panel 200 bears the main load of the gear transmission, while the housing 100 only serves as a supporting foundation, significantly reducing the risk of breakage of the housing 100 due to structural weakness or concentrated load, and improving the overall structural reliability of the processing box.

[0061] Meanwhile, by tightly fitting the mounting panel 200 with the upper top surface 1001 and lower top surface 1002 of the mounting cavity 101 of the housing 100, a bidirectional rigid limit is formed, effectively constraining the vertical displacement or wobbling of the panel, avoiding gear meshing deviation, and ensuring transmission stability. At the same time, the mounting column 300 is vertically fixed to the mounting panel 200, forming an independent support structure, ensuring the coaxiality and stability of the gear installation, and reducing wobbling or eccentricity during rotation.

[0062] By integrating the first idler wheel 311 and the second idler wheel 322 onto the mounting panel 200 via the mounting column 300, an independent transmission unit is formed. The transmission ratio or power transmission direction can be flexibly adjusted. The rigid support of the panel maintains the meshing accuracy, avoiding gear misalignment caused by deformation of the housing 100. This ensures that the main motor power is smoothly transmitted to components such as the stirring roller and the developing roller, thereby improving the reliability of the system operation.

[0063] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A gear connection structure applied to a processing box, characterized in that, include: A housing (100), wherein an end of the housing (100) is provided with a mounting cavity (101) for mounting a gear; The mounting panel (200) is fixedly connected to the housing (100) and located inside the mounting cavity (101); and The mounting post (300) is vertically connected to the mounting panel (200), and the gear is rotatably connected to the mounting post (300); The mounting panel (200) has a through hole (210) in the middle position, which allows the roller shaft (400) of the stirring roller in the processing box to pass through.

2. The gear connection structure according to claim 1, characterized in that, An upper top surface (1001) and a lower top surface (1002) are provided in the mounting cavity (101) of the housing (100); The upper surface of the mounting panel (200) is attached to the upper top surface (1001), and the lower surface of the mounting panel (200) is attached to the lower top surface (1002).

3. The gear connection structure according to claim 1, characterized in that, A connection hole (1003) is provided on the side wall of the mounting cavity (101) of the housing (100); One end of the roller shaft (400) of the stirring roller passes through the connecting hole (1003) and is disposed in the through hole (210).

4. The gear connection structure according to claim 3, characterized in that, A protrusion (201) is provided on the side of the mounting panel (200), and the protrusion (201) is located on the outer periphery of the through hole (210).

5. The gear connection structure according to claim 4, characterized in that, The protrusion (201) is partially engaged within the connecting hole (1003).

6. The gear connection structure according to claim 1, characterized in that, It also includes a seal (500) disposed in the through hole (210), the seal (500) being used to seal the connection between the roller shaft (400) of the stirring roller and the through hole (210).

7. The gear connection structure according to claim 6, characterized in that, The sealing element (500) is connected to the inner wall of the through hole (210) by a snap-fit ​​structure, the snap-fit ​​structure comprising: A slot (510) is formed on the inner wall of the through hole (210), and A limiting protrusion (520) is provided on the outer edge of the seal (500) and corresponds to the position of the slot (510); The limiting protrusion (520) engages with the slot (510).

8. The gear connection structure according to claim 1, characterized in that, The mounting post (300) includes a first mounting post (310) and a second mounting post (320), and the gear includes a first idler gear (311) and a second idler gear (322); The first idler wheel (311) is connected to the first mounting post (310), the second idler wheel (322) is connected to the second mounting post (320), and the first idler wheel (311) and the second idler wheel (322) are engaged.

9. The gear connection structure according to claim 1, characterized in that, The mounting panel (200) has bolt holes (220) for connecting the waste powder blade of the processing box.

10. A processing box, characterized in that, Includes the gear connection structure as described in any one of claims 1-9.

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