Dustproof printer

Abstract

The utility model discloses a dustproof printer, which relates to the technical field of printers and is characterized by comprising a printer body, a paper bin is arranged on the printer body, a cover plate corresponding to the paper bin is rotatably arranged on the printer body, and a paper outlet communicated with the paper bin is reserved between the cover plate and the printer body. A vertically rotating conveying roller is arranged at the position, close to the paper outlet, of the cover plate, a dustproof plate is movably connected to the cover plate, and a driving piece for driving the dustproof plate to block the paper outlet is arranged on the cover plate. The conveying roller drives the dustproof plate to be far away from outlet paper through the transmission assembly, so that the dustproof plate is far away from the outlet paper, the clamping block is extruded by pushing the push rod when not in operation, the driving piece drives the dust placing plate to block the outlet paper, and then dust prevention on the outlet paper is achieved when not in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and more specifically, to a dustproof printer. Background Art

[0002] A printer is one of the output devices of a computer. It was invented by John Watt and Dave Donald in 1976. Printers are mainly used to print computer processing results on related media. They can be divided into laser printers, inkjet printers, impact printers and other types.

[0003] Portable Bluetooth printers are used in our daily lives today. They are convenient and fast, and can bring more convenience. However, when the Bluetooth printer is not in use, it is placed in a storage place, and the dust in the air will fall into the paper outlet. When the dust accumulates too much, the dust will affect the parts in the paper outlet and reduce the life of the printer.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a dust-proof printer, which drives the dust-proof plate away from the exit paper through the transmission assembly by the conveying roller, so that the dust-proof plate is away from the exit paper, and when not in operation, the push rod is pushed to squeeze the locking block, so that the driving part drives the dust release plate to block the exit paper, thereby achieving dust protection for the exit paper when not in operation.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a dustproof printer, including a printer body, the printer body is provided with a paper bin, a cover plate corresponding to the paper bin is rotatably arranged on the printer body, a paper outlet connected to the paper bin is reserved between the cover plate and the printer body, a vertically rotating conveying roller is arranged on the cover plate near the paper outlet, a dustproof plate is movably connected to the cover plate, and a driving member for driving the dustproof plate to block the paper outlet is arranged on the cover plate.

[0007] Preferably, the dustproof plate is provided with a rotating shaft, the cover plate is provided with a mounting plate, the mounting plate is provided with a slot hole corresponding to the rotating shaft, the mounting plate is provided with a limiting sleeve, the driving member is fixedly arranged in the limiting sleeve, the driving member is a coil spring, and the two ends of the coil spring are respectively fixedly arranged on the rotating shaft and the limiting sleeve.

[0008] Preferably, a transmission assembly linked to the conveying roller is provided on the cover plate, and the transmission assembly includes a transmission rod. A slide groove is provided on the cover plate, and the transmission rod is slidably set in the slide groove. Transmission teeth are symmetrically provided on both sides of the transmission rod, and a driving gear is provided at the end of the conveying roller. A driven gear is provided on the rotating shaft, and the driving gear and the driven gear are respectively meshed with the transmission teeth on both sides of the transmission rod.

[0009] Preferably, the ratio of the diameter of the driving gear to the diameter of the driven gear is 4:1.

[0010] Preferably, the driving gear is provided with a mounting plate, the driving gear is rotatably arranged on the mounting plate, the mounting plate is provided with a slot, a locking block is slidably arranged in the slot, the driving gear is provided with a locking slot corresponding to the locking block, a first elastic member is arranged in the slot, and the first elastic member has elastic potential energy for pushing the locking block to be inserted into the locking slot.

[0011] Preferably, a through hole corresponding to the engaging block is opened on one side of the printer body, a push rod corresponding to the engaging block is arranged in the through hole, a second elastic member is arranged in the through hole, and the second elastic member has elastic potential energy for driving the push rod away from the engaging block.

[0012] The utility model has the following beneficial effects:

[0013] When the printer is not in operation, the coil spring pushes the shaft to rotate, so that the dustproof plate blocks the paper outlet, and at the same time, the first elastic member pushes the locking block to correspond to the locking groove. When the printer is in operation, the conveying roller rotates and drives the transmission rod to slide through the driving gear, so that the transmission rod drives the driven gear to rotate through the transmission teeth, thereby achieving the effect of driving the dustproof plate away from the paper outlet. When the printer is not in operation, the staff pushes the push rod to squeeze the locking block away from the driving gear so that the elastic potential energy of the coil spring drives the shaft to rotate, and the driven gear on the shaft is not subjected to force, so that the dustproof plate blocks the paper outlet under the drive of the coil spring, so that the printer can make the dustproof plate block the outlet paper when it is not in operation, and drive the dustproof plate away from the outlet paper through the conveying roller that can discharge paper during printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when the cover is opened;

[0016] Figure 3 This is a schematic diagram of the structure of the cover plate and the dustproof plate of the utility model;

[0017] Figure 4 It is an exploded view of the cover plate and dustproof plate of the utility model.

[0018] In the figure: 1. printer body; 2. paper bin; 3. cover plate; 4. paper outlet; 5. conveyor roller; 6. dust plate; 7. driving member; 8. rotating shaft; 9. mounting plate; 10. limiting sleeve; 11. transmission rod; 12. transmission gear; 13. driving gear; 14. driven gear; 15. mounting plate; 16. slot; 17. engaging block; 18. engaging slot; 19. first elastic member; 20. push rod; 21. second elastic member. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] A dustproof printer, such as Figures 1 to 4 As shown, it includes a printer body 1, the printer body 1 is provided with a paper bin 2, a cover plate 3 corresponding to the paper bin 2 is rotatably provided on the printer body 1, a paper outlet 4 connected to the paper bin 2 is reserved between the cover plate 3 and the printer body 1, a vertically rotating conveying roller 5 is provided on the cover plate 3 near the paper outlet 4, a dustproof plate 6 is movably connected to the cover plate 3, and a driving member 7 for driving the dustproof plate 6 to block the paper outlet 4 is provided on the cover plate 3.

[0021] refer to Figure 3 and Figure 4 As shown: both ends of the dustproof plate 6 are integrally formed with a rotating shaft 8, the cover plate 3 is integrally formed with a mounting plate 9, the rotating shaft 8 is rotatably matched with the axial hole of the mounting plate 9, a limiting sleeve 10 is provided on the mounting plate 9, the driving member 7 is fixedly installed in the limiting sleeve 10, the driving member 7 is a coil spring, and the two ends of the coil spring are respectively fixedly installed on the rotating shaft 8 and the limiting sleeve 10 by screws.

[0022] In the above embodiment, the coil spring can drive the rotating shaft 8 to rotate through its own elastic potential energy, so that the dustproof plate 6 rotates, and the dustproof plate 6 blocks the paper outlet 4.

[0023] refer to Figure 4 As shown: a transmission assembly linked to the conveying roller 5 is installed on the cover plate 3, and the transmission assembly includes a transmission rod 11. A slide groove is opened on the cover plate 3, and the transmission rod 11 is slidably set in the slide groove. Transmission teeth 12 are symmetrically formed on both sides of the transmission rod 11. A driving gear 13 is fixedly installed on the end of the conveying roller 5 by bolts, and a driven gear 14 is fixedly installed on the rotating shaft 8 by screws. The driving gear 13 and the driven gear 14 are respectively meshed with the transmission teeth 12 on both sides of the transmission rod 11, and the diameter ratio of the driving gear 13 to the driven gear 14 is 4:1.

[0024] In the above embodiment, when the printer is ejecting paper, the conveyor roller 5 rotates and drives the transmission rod 11 to slide through the driving gear 13 and the transmission teeth 12, so that when the transmission rod 11 slides, the transmission teeth 12 on the transmission rod 11 drive the driven gear 14 to rotate, so that the driven gear 14 drives the dustproof plate 6 to rotate in a direction opposite to the rotation direction of the dustproof plate 6 driven by the coil spring, thereby causing the conveyor roller 5 to drive the dustproof plate 6 away from the paper outlet 4 when the printer ejects paper.

[0025] refer to Figure 4 As shown: the driving gear 13 is provided with a mounting plate 15, and the axial hole of the driving gear 13 is rotatably mounted on the mounting plate 15, and the mounting plate 15 is provided with a card slot 16, and a card block 17 is slidably mounted in the card slot 16, and the driving gear 13 is provided with a card slot 18 corresponding to the card block 17, and a first elastic member 19 is installed in the card slot 16 by screws, and the first elastic member 19 has elastic potential energy for pushing the card block 17 to be inserted into the card slot 18, and a through hole corresponding to the card block 17 is provided on one side of the printer body 1, and a push rod 20 corresponding to the card block 17 is slidably mounted in the through hole, and a second elastic member 21 is provided in the through hole, and the second elastic member 21 has elastic potential energy for driving the push rod 20 away from the card block 17.

[0026] In the above embodiment, the first elastic member 19 pushes the locking block 17 to engage with the locking groove 18, so that the conveying roller 5 is fixed to the driving gear 13, so that when the conveying roller 5 rotates, the driving gear 13 drives the transmission rod 11 to slide, so that the dustproof plate 6 rotates away from the paper outlet 4, and the staff pushes the push rod 20 so that the push rod 20 squeezes the locking block 17 away from the driving gear 13 so that the elastic potential energy of the coil spring drives the rotating shaft 8 to rotate, and the driven gear 14 on the rotating shaft 8 is not subjected to force, so that the dustproof plate 6 blocks the paper outlet 4 under the drive of the coil spring.

[0027] Working principle:

[0028] When the printer is not in operation, the coil spring pushes the rotating shaft 8 to rotate, so that the dustproof plate 6 blocks the paper outlet 4. At the same time, the first elastic member 19 pushes the locking block 17 to correspond to the locking groove 18. When the printer is in operation, the conveying roller 5 rotates and drives the transmission rod 11 to slide through the driving gear 13, so that the transmission rod 11 drives the driven gear 14 to rotate through the transmission tooth 12, thereby achieving the effect of driving the dustproof plate 6 away from the paper outlet 4. When the printer is not in operation, the staff pushes the push rod 20 so that the push rod 20 squeezes the locking block 17 away from the driving gear 13, so that the elastic potential energy of the coil spring drives the rotating shaft 8 to rotate, and the driven gear 14 on the rotating shaft 8 is not subjected to force, so that the dustproof plate 6 blocks the paper outlet 4 under the drive of the coil spring, so that the printer can make the dustproof plate 6 block the outlet paper when it is not in operation, and drive the dustproof plate 6 away from the outlet paper through the conveying roller 5 that can discharge paper during printing.

[0029] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dustproof printer, comprising a printer body (1), the printer body (1) being provided with a paper bin (2), a cover plate (3) corresponding to the paper bin (2) being rotatably provided on the printer body (1), a paper outlet (4) communicating with the paper bin (2) being left between the cover plate (3) and the printer body (1), a vertically rotatable conveying roller (5) being provided near the paper outlet (4), characterized in that: The cover plate (3) is movably connected to a dustproof plate (6), and the cover plate (3) is provided with a driving member (7) for driving the dustproof plate (6) to block the paper outlet (4).

2. The dustproof printer according to claim 1, characterized in that: A rotating shaft (8) is provided at both ends of the dustproof plate (6); a mounting plate (9) is provided on the cover plate (3); a slot corresponding to the rotating shaft (8) is provided on the mounting plate (9); a limiting sleeve (10) is provided on the mounting plate (9); the driving member (7) is fixedly arranged in the limiting sleeve (10); the driving member (7) is a coil spring; and both ends of the coil spring are respectively fixedly arranged on the rotating shaft (8) and the limiting sleeve (10).

3. The dustproof printer according to claim 2, characterized in that: The cover plate (3) is provided with a transmission assembly linked to the conveying roller (5), the transmission assembly comprising a transmission rod (11), a slide groove is provided on the cover plate (3), the transmission rod (11) is slidably arranged in the slide groove, transmission teeth (12) are symmetrically arranged on both sides of the transmission rod (11), a driving gear (13) is arranged at the end of the conveying roller (5), and a driven gear (14) is arranged on the rotating shaft (8), and the driving gear (13) and the driven gear (14) are respectively meshed with the transmission teeth (12) on both sides of the transmission rod (11).

4. The dustproof printer according to claim 3, characterized in that: The ratio of the diameter of the driving gear (13) to the diameter of the driven gear (14) is 4:

1.

5. The dustproof printer according to claim 4, characterized in that: The driving gear (13) is provided with a mounting plate (15), the driving gear (13) is rotatably mounted on the mounting plate (15), the mounting plate (15) is provided with a clamping groove (16), a clamping block (17) is slidably mounted in the clamping groove (16), the driving gear (13) is provided with a clamping groove (18) corresponding to the clamping block (17), a first elastic member (19) is arranged in the clamping groove (16), and the first elastic member (19) has elastic potential energy for pushing the clamping block (17) to be inserted into the clamping groove (18).

6. The dustproof printer according to claim 4, characterized in that: A through hole corresponding to the engaging block (17) is provided on one side of the printer body (1), a push rod (20) corresponding to the engaging block (17) is arranged in the through hole, a second elastic member (21) is arranged in the through hole, and the second elastic member (21) has elastic potential energy for driving the push rod (20) away from the engaging block (17).

Images