A transfer belt mounting structure of a laser printer

Abstract

The application is suitable for the technical field of laser printers, and provides a transfer belt mounting structure of a laser printer. In use, the transfer frame of the application can be mounted in the laser printer, and the electrostatic transfer belt and components such as a photosensitive drum are connected together to ensure the normal operation of the printing work. When the electrostatic transfer belt needs to be replaced, the sliding shell and the mounting plate are disassembled, then the sliding shell is slid along the mounting plate, so that the first clamping block is separated from the second clamping block, at this time, the rotating shaft of the driven transfer roller is supported by the first clamping block, then the first clamping block is slid into the first sliding groove, the driven transfer roller is driven to move towards the driving transfer roller, so that the electrostatic transfer belt is in a relaxed state, and thus the electrostatic transfer belt can be taken off from the transfer frame. The application does not need to use tools to disassemble screws, and is more convenient to disassemble and assemble, and the electrostatic transfer belt will not be damaged during disassembly and assembly.

Description

Technical Field

[0001] This application belongs to the field of laser printer technology, and particularly relates to a transfer belt mounting structure for a laser printer. Background Technology

[0002] The electrostatic transfer belt is one of the core components of a laser printer. The transfer process of a color laser printer includes two steps: the first step is to transfer the toner in the drum to the electrostatic transfer belt after it has been developed on the photosensitive drum; the second step is to transfer the toner on the electrostatic transfer belt to the printing medium. The quality of the electrostatic transfer belt directly affects the printing effect on the medium.

[0003] Electrostatic transfer belts are typically installed in the transfer assembly of laser printers. Existing transfer assemblies mainly consist of a transfer frame, an active transfer roller, a driven transfer roller, and an electrostatic transfer belt. After a period of use, the transfer assembly needs to be disassembled for maintenance, including replacing or cleaning the electrostatic transfer belt to ensure print quality. The disassembly process requires first removing the screws on the outer housing of the transfer frame using tools before the housing can be removed. Then, the driven transfer roller can be removed, and finally, the electrostatic transfer belt can be taken off. The disassembly process is quite complicated. Summary of the Invention

[0004] This application provides a transfer belt mounting structure for a laser printer, which can solve the problem of cumbersome disassembly of the electrostatic transfer belt in a laser printer.

[0005] This application provides a transfer belt mounting structure for a laser printer, including:

[0006] A mounting plate is installed at one end of the transfer carriage of the laser printer, and a first sliding groove is provided on the mounting plate;

[0007] The first clamping block, one end of which is slidably disposed in the first groove;

[0008] An elastic limiting component is disposed in the first slide groove and is elastically connected to one end of the first clamping block to limit the sliding of the first clamping block.

[0009] A sliding housing is slidably disposed on the outside of the mounting plate and is detachably connected to the mounting plate. A second clamping block is disposed inside the sliding housing. The first clamping block and the second clamping block are connected to form a driven transfer roller mounting base. The shaft of the driven transfer roller of the laser printer is rotatably disposed inside the driven transfer roller mounting base.

[0010] In this design, the electrostatic transfer belt of the laser printer is tensioned and fitted between the driven transfer roller and the active transfer roller of the laser printer.

[0011] Optionally, the first clamping block includes a clamping head and a slider. The slider is slidably disposed in the first groove. The slider and the clamping head are connected by a connecting rod. The clamping head is connected to the second clamping block to form a driven transfer roller mounting seat. The slider is connected to the elastic limiting component.

[0012] Optionally, the elastic limiting component includes a first elastic element, which is disposed in the first groove and connected to the slider.

[0013] Optionally, both the clamping head and the second clamping block are semi-circular, and the clamping head and the second clamping block are connected to form an annular driven transfer roller mounting base.

[0014] Optionally, the mounting plate is provided with a second sliding groove, and a slide bar is provided on the inner side wall of the sliding housing. The slide bar is slidably disposed in the second sliding groove. A receiving groove is provided on the slide bar, and a locking groove is provided inside the second sliding groove. The receiving groove and the locking groove communicate with each other.

[0015] A rotating cavity is formed between the slider and the inner wall of the sliding housing. The rotating cavity communicates with the receiving groove. A transmission component is rotatably installed in the rotating cavity. One end of the transmission component extends into the receiving groove, and the other end of the transmission component extends through the rotating cavity to the outside of the sliding housing.

[0016] The transmission component is connected to a telescopic locking block assembly at one end within the receiving groove. The end of the telescopic locking block assembly away from the transmission component engages with the slot.

[0017] Optionally, the transmission assembly includes a first gear and a push-pull rod. A third slide groove is provided inside the sliding housing, and the third slide groove communicates with the rotating cavity. The first gear is rotatably disposed in the rotating cavity, and one end of the first gear extends into the receiving groove. The push-pull rod is slidably disposed in the third slide groove, and the push-pull rod is meshed with the first gear. The end of the push-pull rod away from the first gear extends outside the sliding housing and is connected to a handle.

[0018] The telescopic locking block assembly includes a second gear, which is rotatably disposed in a receiving groove. The second gear is perpendicularly meshed with the first gear. A toothed rod is meshed on the second gear, and a locking block is connected to one end of the toothed rod. The locking block is engaged with a locking groove. A second elastic element is disposed in the receiving groove, and the two ends of the second elastic element are respectively connected to the bottom end of the locking block and the bottom end of the receiving groove.

[0019] Optionally, the longitudinal section of the card block is a right-angled triangle structure, with the inclined surface of the right-angled triangle structure facing parallel to the push-pull rod.

[0020] Optionally, a transmission wheel set is provided on the outer surface of the side wall of the transfer frame, and multiple support rods are rotatably provided on the outer surface of the side wall of the transfer frame, and the multiple support rods are connected to each other through the transmission wheel set.

[0021] Optionally, the transmission wheel set includes a first drive gear, a second drive gear, a third drive gear, a fourth drive gear, a first transmission gear, a second transmission gear, and multiple guide wheels and a conveyor belt. The first drive gear, the second drive gear, the third drive gear, the fourth drive gear, the first transmission gear, the second transmission gear, and the multiple guide wheels are all rotatably mounted on the outer surface of the side wall of the transfer frame.

[0022] The first driving gear and the second driving gear are connected by a first transmission gear, and the third driving gear and the fourth driving gear are connected by a second transmission gear. Multiple guide wheels are located between the first transmission gear and the second transmission gear. One end of the conveyor belt is sleeved on the first transmission gear, and the other end passes around the multiple guide wheels in sequence and is sleeved on the second transmission gear.

[0023] Support rods are provided on the shafts of the first, second, third, and fourth driving gears, and the multiple support rods are parallel to each other.

[0024] Optionally, multiple limiting blocks are provided on the outer surface of the side wall of the transfer holder, each corresponding to one of the multiple support rods. The limiting blocks are used to limit the rotation angle of the corresponding support rods.

[0025] The above-mentioned solution in this application has the following beneficial effects:

[0026] In use, the transfer frame of this application can be installed inside a laser printer, and the electrostatic transfer belt can be connected to components such as the photosensitive drum to ensure normal printing operation. When the electrostatic transfer belt needs to be replaced, the sliding housing is separated from the mounting plate, and then the sliding housing is slid along the mounting plate to separate the first clamping block from the second clamping block. At this time, the shaft of the driven transfer roller is supported by the first clamping block, and then the first clamping block is slid into the first groove, driving the driven transfer roller to move towards the active transfer roller, so that the electrostatic transfer belt is in a relaxed state, and the electrostatic transfer belt can be removed from the transfer frame. This application does not require the use of tools to remove screws, making disassembly and assembly more convenient, and the electrostatic transfer belt will not be damaged during disassembly and assembly.

[0027] Other beneficial effects of this application will be described in detail in the following detailed description section. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1A side view of the transfer belt mounting structure for a laser printer;

[0030] Figure 2 Schematic cross-section of a portion of the transfer belt mounting structure for a laser printer Figure 1 ;

[0031] Figure 3 Schematic cross-section of a portion of the transfer belt mounting structure for a laser printer Figure 2 ;

[0032] Figure 4 This is a schematic diagram of the sliding housing structure;

[0033] Figure 5 Schematic cross-section of a portion of the transfer belt mounting structure for a laser printer Figure 3 ;

[0034] Figure 6 Schematic cross-section of a portion of the transfer belt mounting structure for a laser printer Figure 4 ;

[0035] Figure 7 This is a structural schematic diagram of the support rod and the transmission wheel assembly;

[0036] Figure 8 A top view of the transfer belt mounting structure for a laser printer.

[0037] [Explanation of Labels in the Attached Image]

[0038] 1—Transfer frame, 11—Transmission wheel assembly, 12—Support rod, 111—First drive gear, 112—Second drive gear, 113—Third drive gear, 114—Fourth drive gear, 115—First transmission gear, 116—Second transmission gear, 117—Guide wheel, 118—Conveyor belt, 13—Limiting block, 2—Drive transfer roller, 3—Mounting plate, 31—First slide groove, 32—Second slide groove, 321—Slot, 4—First clamping block, 41—Clamping head, 4 2—Slider, 43—Connecting rod, 44—Snap groove, 5—Elastic limiting component, 6—Sliding housing, 61—Second clamping block, 62—Slide bar, 63—Receiving groove, 64—Rotating cavity, 65—Transmission component, 651—First gear, 652—Push-pull rod, 653—Handle, 66—Telescopic locking block component, 661—Second gear, 662—Geared rod, 663—Locking block, 664—Second elastic element, 67—Third slide groove, 7—Driven transfer roller, 8—Electrostatic transfer belt. Detailed Implementation

[0039] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0040] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0041] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0042] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0043] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0045] like Figures 1 to 8As shown, this application provides a transfer belt mounting structure for a laser printer, including a mounting plate 3, a first clamping block 4, an elastic limiting component 5, and a sliding housing 6 disposed at one end of the transfer frame 1 of the laser printer; an active transfer roller 2 is rotatably disposed inside the transfer frame 1, and an electrostatic transfer belt 8 is sleeved on the active transfer roller 2; a first groove 31 is provided on the mounting plate 3; one end of the first clamping block 4 is slidably disposed in the first groove 31; the elastic limiting component 5 is disposed in the first groove 31, and the elastic limiting component 5 is elastically connected to one end of the first clamping block 4 to limit the sliding of the first clamping block 4. The sliding housing 6 is slidably disposed on the outside of the mounting plate 3, and the sliding housing 6 is detachably connected to the mounting plate 3. A second clamping block 61 is disposed inside the sliding housing 6. The first clamping block 4 is connected to the second clamping block 61 to form a driven transfer roller mounting seat. The shaft of the driven transfer roller 7 of the laser printer is rotatably disposed in the driven transfer roller mounting seat. The active transfer roller 2 of the laser printer is rotatably disposed at one end of the transfer frame 1 of the laser printer. The electrostatic transfer belt 8 of the laser printer is tensioned and sleeved between the driven transfer roller 7 and the active transfer roller 2 of the laser printer.

[0046] Among them, the transfer frame 1, the active transfer roller 2, the driven transfer roller 7, and the electrostatic transfer belt 8 are all existing technologies, and the installation methods of the transfer frame 1, the active transfer roller 2, and the electrostatic transfer belt 8 inside the laser printer are all the same as existing technologies, so they will not be described in detail here.

[0047] In the above embodiment, the transfer frame 1 can be installed inside the laser printer. The active transfer roller 2 is connected to the shaft of the drive component inside the laser printer. The drive component controls the rotation of the active transfer roller 2. The electrostatic transfer belt 8 is connected to components such as the photosensitive drum to ensure the normal operation of the printing process. When it is necessary to replace the electrostatic transfer belt 8, the sliding housing 6 is separated from the mounting plate 3. Then, the sliding housing 6 is slid along the outer wall of the mounting plate 3, so that the first clamping block 4 and the second clamping block 61 are separated. At this time, the shaft of the driven transfer roller 7 is supported by the first clamping block 4. Due to the elastic limiting component 5, the first clamping block 4 can be prevented from sliding in the first slide groove 31, so that the active transfer roller 2 and the driven transfer roller 7 can still tension the electrostatic transfer belt 8. Then, the first clamping block 4 is slid into the first slide groove 31, driving the driven transfer roller 7 to move towards the active transfer roller 2, so that the electrostatic transfer belt 8 is in a relaxed state, and thus the electrostatic transfer belt 8 can be removed from the transfer frame 1. During installation, the electrostatic transfer belt 8 is fitted between the active transfer roller 2 and the driven transfer roller 7, with the electrostatic transfer belt 8 in a relaxed state. Then, the shaft of the driven transfer roller 7 is mounted on the first clamping block 4. By sliding the first clamping block 4 within the first groove 31, the electrostatic transfer belt 8 is tensioned via the elastic limiting component 5. The sliding housing 6 is then slid along the outer wall of the mounting plate 3, aligning the second clamping block 61 with the first clamping block 4 to form a driven transfer roller mounting seat. This allows the shaft of the driven transfer roller 7 to rotate within the driven transfer roller mounting seat. Finally, the sliding housing 6 is fixed to the outer wall of the mounting plate 3. This application eliminates the need for tools to remove screws, making disassembly and assembly more convenient, and preventing damage to the electrostatic transfer belt during disassembly and assembly.

[0048] like Figure 2 and Figure 3 As shown, the first clamping block 4 includes a clamping head 41 and a slider 42. The slider 42 is slidably disposed within the first slide groove 31. The slider 42 and the clamping head 41 are connected by a connecting rod 43. The clamping head 41 is connected to the second clamping block 61 to form a driven transfer roller mounting seat. The slider 42 is connected to the elastic limiting component 5. A retaining groove 44 is provided on the connecting rod 43 to facilitate the sliding of the slider 42.

[0049] In the above embodiment, the slider 42 slides in the first groove 31, thereby driving the connecting rod 43 and the clamping head 41, and the clamping head 41 is connected to the second clamping block 61 to form a driven transfer roller mounting seat, thereby facilitating the installation of the shaft of the driven transfer roller 7.

[0050] like Figure 2 and Figure 3 As shown, the elastic limiting component 5 includes a first elastic element, which is disposed in the first slide groove 31 and is connected to the slider 42.

[0051] In the above embodiment, the two ends of the first elastic member are connected to the inner end of the first slide groove 31 and the slider 42, respectively. The elastic force of the first elastic member restricts the sliding of the slider 42 in the first slide groove 31, thereby supporting the clamping head 41. When it is necessary to replace the electrostatic transfer belt 8, the slider 42 is slid into the first slide groove 31 and the first elastic member is squeezed, so that the electrostatic transfer belt 8 is in a relaxed state. When installing the electrostatic transfer belt 8, the first elastic member can be squeezed by the slider 42 first, and then the shaft of the driven transfer roller 7 can be installed on the clamping head 41. Then, the elastic force of the first elastic member pushes the slider 42 to slide in the opposite direction in the first slide groove 31, so that the driven transfer roller 7 gradually moves away from the active transfer roller 2, thereby making the electrostatic transfer belt 8 taut between the active transfer roller 2 and the driven transfer roller 7.

[0052] The first elastic element has functions such as elasticity and repositioning. For example, the first elastic element can be a damping spring, a bouncy ball, etc.

[0053] like Figure 2 and Figure 3 As shown, both the clamping head 41 and the second clamping block 61 are semi-circular, and the clamping head 41 and the second clamping block 61 are connected to form an annular driven transfer roller mounting base. A rotating bearing can be provided on the rotating shaft of the driven transfer roller 7, and the rotation of the driven transfer roller 7 can be realized by directly mounting the rotating bearing on the annular driven transfer roller mounting base.

[0054] like Figures 2 to 6 As shown, the mounting plate 3 is provided with a second sliding groove 32, and the inner wall of the sliding housing 6 is provided with a sliding strip 62. The sliding strip 62 is slidably disposed in the second sliding groove 32. The sliding strip 62 is provided with a receiving groove 63. The second sliding groove 32 is provided with a locking groove 321. The receiving groove 63 communicates with the locking groove 321. A rotating cavity 64 is formed between the sliding strip 62 and the inner wall of the sliding housing 6. The rotating cavity 64 communicates with the receiving groove 63. A transmission component 65 is rotatably disposed in the rotating cavity 64. One end of the transmission component 65 extends into the receiving groove 63, and the other end of the transmission component 65 extends through the rotating cavity 64 to the outside of the sliding housing 6. A telescopic locking block component 66 is connected to the end of the transmission component 65 located in the receiving groove 63. The end of the telescopic locking block component 66 away from the transmission component 65 is engaged with the locking groove 321.

[0055] In the above embodiment, when the sliding housing 6 slides on the mounting plate 3 via the slide bar 62, the telescopic locking block assembly 66 extends and retracts within the receiving groove 63 on the slide bar 62. When the receiving groove 63 on the slide bar 62 slides to align with the locking groove 321 within the second slide groove 32, the telescopic end of the telescopic locking block assembly 66 extends until it engages with the locking groove 321 within the second slide groove 32, restricting the sliding housing 6 from continuing to slide, thereby fixing the sliding housing 6 to the outer wall of the mounting plate 3. When it is necessary to remove the sliding housing 6, the transmission assembly 65 on the sliding housing 6 can be driven to retract the telescopic locking block assembly 66, causing the telescopic locking block assembly 66 to slide out of the locking groove 321 until the telescopic locking block assembly 66 is fully retracted into the receiving groove 63, allowing the slide bar 62 to slide within the second slide groove 32, thereby sliding the sliding housing 6 off the mounting plate 3.

[0056] The telescopic block assembly 66 can be driven by pneumatic telescopic drive, elastic telescopic drive, etc. When the receiving groove 63 on the slide bar 62 slides to the slot 321 inside the second slide groove 32, the telescopic end of the telescopic block assembly 66 will automatically extend until it engages with the slot 321 inside the second slide groove 32.

[0057] like Figures 2 to 6 As shown, the transmission assembly 65 includes a first gear 651 and a push-pull rod 652. A third slide groove 67 is provided inside the sliding housing 6, which communicates with the rotating cavity 64. The first gear 651 is rotatably disposed in the rotating cavity 64, with one end extending into the receiving groove 63. The push-pull rod 652 is slidably disposed in the third slide groove 67, meshing with the first gear 651. The end of the push-pull rod 652 away from the first gear 651 extends outside the sliding housing 6 and is connected to a handle. 653; The telescopic locking block assembly 66 includes a second gear 661, which is rotatably disposed in the receiving groove 63. The second gear 661 is perpendicularly meshed with the first gear 651. A toothed rod 662 is meshed on the second gear 661. One end of the toothed rod 662 is connected to a locking block 663. The locking block 663 is engaged with the locking groove 321. A second elastic member 664 is disposed in the receiving groove 63. The two ends of the second elastic member 664 are respectively connected to the bottom end of the locking block 663 and the bottom end of the receiving groove 63.

[0058] In the above embodiment, when the sliding housing 6 slides on the mounting plate 3 via the slide bar 62, the locking block 663 is located in the receiving groove 63 on the slide bar 62, and the locking block 663 presses the second elastic member 664, making it in an elastic compression state. When the receiving groove 63 on the slide bar 62 slides to the locking groove 321 aligned with the second slide groove 32, the locking block 663 will slide into the locking groove 321 and engage with it under the action of the elastic force of the second elastic member 664, restricting the sliding housing 6 from continuing to slide, thereby fixing the sliding housing 6 to the outer wall of the mounting plate 3. When it is necessary to remove the sliding housing 6, the push-pull rod 652 can be pulled. The push-pull rod 652 slides in the third slide groove 67 and drives the first gear 651, which is meshed with the push-pull rod 652, to rotate. At the same time, the first gear 651 will also drive the second gear 661, which is meshed perpendicularly with the first gear 651, to rotate. This causes the toothed rod 662 to move away from the slot 321, so that the locking block 663 slides out of the slot 321. The locking block 663 also presses the second elastic member 664, putting it in an elastic compression state, until the locking block 663 slides out of the slot 321 completely. Then the slide bar 62 can slide in the second slide groove 32, thereby sliding the sliding housing 6 off the mounting plate 3.

[0059] The second elastic element 32 has functions such as elasticity and resetting. For example, the second elastic element can be a damping spring, a bouncy ball, etc.

[0060] like Figures 2 to 6 As shown, the longitudinal section of the locking block 663 is a right-angled triangle structure, and the inclined surface of the right-angled triangle structure is parallel to the push-pull rod 652. This structure facilitates the locking block 663 to slide into the locking slot 321.

[0061] like Figure 7 and Figure 8 As shown, a transmission wheel set 11 is provided on the outer surface of the side wall of the transfer frame 1, and multiple support rods 12 are rotatably provided on the outer surface of the side wall of the transfer frame 1. The multiple support rods 12 are connected to each other through the transmission wheel set 11.

[0062] In the above embodiment, when assembling or disassembling the electrostatic transfer belt 8, the transfer frame 1 needs to be erected to the side. To prevent the transfer frame 1 from collapsing and being damaged due to instability, one of the support rods 12 can be rotated, and then the transmission wheel set 11 drives the other support rods 12, causing all the support rods 12 to unfold outwards. These support rods 12 hold the transfer frame 1 upright, preventing it from collapsing and being damaged during assembly or disassembly. After the electrostatic transfer belt 8 is installed, one of the support rods 12 can be rotated in the opposite direction, causing the other support rods 12 to retract inwards.

[0063] like Figure 7 and Figure 8As shown, the transmission gear set 11 includes a first drive gear 111, a second drive gear 112, a third drive gear 113, a fourth drive gear 114, a first transmission gear 115, a second transmission gear 116, multiple guide wheels 117, and a conveyor belt 118. The first drive gear 111, the second drive gear 112, the third drive gear 113, the fourth drive gear 114, the first transmission gear 115, the second transmission gear 116, and the multiple guide wheels 117 are rotatably mounted on the outer surface of the side wall of the transfer frame 1. The first drive gear 111 and the second drive gear 112 are connected by a first transmission gear 116. The drive gear 115 is engaged in a transmission connection, and the third drive gear 113 and the fourth drive gear 114 are engaged in a transmission connection through the second transmission gear 116. Multiple guide wheels 117 are located between the first transmission gear 115 and the second transmission gear 116. One end of the conveyor belt 118 is sleeved on the first transmission gear 115, and the other end passes around the multiple guide wheels 117 in sequence before being sleeved on the second transmission gear 116. Support rods 12 are provided on the rotating shafts of the first drive gear 111, the second drive gear 112, the third drive gear 113 and the fourth drive gear 114, and the multiple support rods 12 are parallel to each other.

[0064] In the above embodiment, four support rods 12 are respectively mounted on the shafts of the first drive gear 111, the second drive gear 112, the third drive gear 113, and the fourth drive gear 114. When the support rod 12 on the shaft of the first drive gear 111 is rotated outward, the first drive gear 111 rotates, driving the first transmission gear 115 and the second drive gear 112 to rotate, causing the support rod 12 on the shaft of the second drive gear 112 to rotate outward. Simultaneously, the first transmission gear 115 also drives the second transmission gear 116 to rotate, and the second transmission gear 116 drives the third drive gear 113 and the fourth drive gear 114 to rotate, causing the support rods 12 on the shafts of the third drive gear 113 and the fourth drive gear 114 to rotate outward. Rotating one of the support rods 12 allows all four support rods 12 to unfold outward simultaneously and retract inward simultaneously.

[0065] like Figure 8 As shown, multiple limiting blocks 13, corresponding one-to-one with multiple support rods 12, are provided on the outer surface of the side wall of the transfer frame 1. Each limiting block 13 abuts against each support rod 12, and the limiting block 13 is used to limit the rotation angle of the corresponding support rod 12. The limiting block 13 is located on the rotation path of the support rod 12. When the support rod 12 rotates inward to retract, the limiting block 13 prevents the support rod 12 from rotating too much and damaging the support rod 12. At the same time, the limiting block 13 can also be provided with mounting components such as buckles. When the support rod 12 rotates onto the limiting block 13, the mounting components such as buckles fix the support rod 12 onto the limiting block 13, preventing the support rod 12 from rotating naturally.

[0066] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A transfer belt mounting structure for a laser printer, characterized in that, include: A mounting plate (3) is provided at one end of the transfer carriage (1) of the laser printer, and a first sliding groove (31) is provided on the mounting plate (3); The first clamping block (4) is slidably disposed in the first groove (31) at one end; An elastic limiting component (5) is disposed in the first slide groove (31) and is elastically connected to one end of the first clamping block (4) to limit the sliding of the first clamping block (4). A sliding housing (6) is slidably disposed on the outside of the mounting plate (3) and the sliding housing (6) is detachably connected to the mounting plate (3). A second clamping block (61) is provided inside the sliding housing (6). The first clamping block (4) and the second clamping block (61) are connected to form a driven transfer roller mounting seat. The shaft of the driven transfer roller (7) of the laser printer is rotatably disposed in the driven transfer roller mounting seat. The electrostatic transfer belt (8) of the laser printer is tensioned and sleeved between the driven transfer roller (7) and the active transfer roller (2) of the laser printer.

2. The transfer belt mounting structure according to claim 1, characterized in that, The first clamping block (4) includes a clamping head (41) and a slider (42). The slider (42) is slidably disposed in the first slide groove (31). The slider (42) and the clamping head (41) are connected by a connecting rod (43). The clamping head (41) is connected to the second clamping block (61) to form a driven transfer roller mounting seat. The slider (42) is connected to the elastic limiting component (5).

3. The transfer belt mounting structure according to claim 2, characterized in that, The elastic limiting component (5) includes a first elastic element, which is disposed in the first groove (31) and connected to the slider (42).

4. The transfer belt mounting structure according to claim 2, characterized in that, Both the clamping head (41) and the second clamping block (61) are semi-circular, and the clamping head (41) and the second clamping block (61) are connected to form an annular driven transfer roller mounting base.

5. The transfer belt mounting structure according to claim 1, characterized in that, The mounting plate (3) is provided with a second sliding groove (32), and the inner side wall of the sliding housing (6) is provided with a slide bar (62). The slide bar (62) is slidably disposed in the second sliding groove (32). The slide bar (62) is provided with a receiving groove (63), and the second sliding groove (32) is provided with a locking groove (321). The receiving groove (63) communicates with the locking groove (321). A rotating cavity (64) is formed between the slider (62) and the inner wall of the sliding housing (6). The rotating cavity (64) communicates with the receiving groove (63). A transmission assembly (65) is rotatably disposed in the rotating cavity (64). One end of the transmission assembly (65) extends into the receiving groove (63), and the other end of the transmission assembly (65) extends through the rotating cavity (64) to the outside of the sliding housing (6). The transmission component (65) is connected to a telescopic locking block component (66) at one end within the receiving groove (63), and the end of the telescopic locking block component (66) away from the transmission component (65) is engaged with the locking groove (321).

6. The transfer belt mounting structure according to claim 5, characterized in that, The transmission assembly (65) includes a first gear (651) and a push-pull rod (652). A third slide groove (67) is provided in the sliding housing (6). The third slide groove (67) communicates with the rotating cavity (64). The first gear (651) is rotatably disposed in the rotating cavity (64). One end of the first gear (651) extends into the receiving groove (63). The push-pull rod (652) is slidably disposed in the third slide groove (67). The push-pull rod (652) is meshed with the first gear (651). One end of the push-pull rod (652) away from the first gear (651) extends out of the sliding housing (6) and is connected to a handle (653). The telescopic locking block assembly (66) includes a second gear (661), which is rotatably disposed in the receiving groove (63). The second gear (661) is perpendicularly meshed with the first gear (651). A toothed rod (662) is meshed on the second gear (661). One end of the toothed rod (662) is connected to a locking block (663). The locking block (663) is engaged with the locking groove (321). A second elastic member (664) is disposed in the receiving groove (63). The two ends of the second elastic member (664) are respectively connected to the bottom end of the locking block (663) and the bottom end of the receiving groove (63).

7. The transfer belt mounting structure according to claim 6, characterized in that, The longitudinal section of the card block (663) is a right-angled triangle structure, and the inclined surface of the right-angled triangle structure is parallel to the push-pull rod (652).

8. The transfer belt mounting structure according to claim 1, characterized in that, A transmission wheel set (11) is provided on the outer surface of the side wall of the transfer frame (1), and a plurality of support rods (12) are rotatably provided on the outer surface of the side wall of the transfer frame (1), and the plurality of support rods (12) are connected to each other through the transmission wheel set (11).

9. The transfer belt mounting structure according to claim 8, characterized in that, The transmission wheel assembly (11) includes a first drive gear (111), a second drive gear (112), a third drive gear (113), a fourth drive gear (114), a first transmission gear (115), a second transmission gear (116), a plurality of guide wheels (117), and a conveyor belt (118). The first drive gear (111), the second drive gear (112), the third drive gear (113), the fourth drive gear (114), the first transmission gear (115), the second transmission gear (116), and the plurality of guide wheels (117) are rotatably disposed on the outer surface of the side wall of the transfer frame (1). The first drive gear (111) and the second drive gear (112) are connected by the first transmission gear (115), and the third drive gear (113) and the fourth drive gear (114) are connected by the second transmission gear (116). A plurality of guide wheels (117) are located between the first transmission gear (115) and the second transmission gear (116). One end of the conveyor belt (118) is sleeved on the first transmission gear (115), and the other end passes around the plurality of guide wheels (117) in sequence and is sleeved on the second transmission gear (116). The first drive gear (111), the second drive gear (112), the third drive gear (113) and the fourth drive gear (114) are all provided with support rods (12), and the multiple support rods (12) are parallel to each other.

10. The transfer belt mounting structure according to claim 9, characterized in that, The outer surface of the side wall of the transfer frame (1) is provided with a plurality of limiting blocks (13) corresponding to the plurality of support rods (12) one by one. The limiting blocks (13) are used to limit the rotation angle of the corresponding support rods (12).

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