File scanner convenient to adjust scanning angle

Abstract

The utility model relates to the field of archive scanners, and discloses an archive scanner convenient to adjust scanning angle, which comprises a support, a round sleeve is fixedly arranged at the top of the support, a transmission cylinder is fixedly connected in the round sleeve through a bearing, a worm gear rod is arranged in the transmission cylinder, and the worm gear rod is fixedly connected with the support. The front end and the rear end of the worm gear rod penetrate through the outer side of the transmission cylinder, a concave plate is fixedly connected to the left side of the worm gear rod, a scanning device is fixedly connected to the left side of the concave plate, and a sleeve with holes is fixedly connected to the surface of the round sleeve. According to the utility model, the worm and the worm gear rod drive the concave plate and the scanning device to incline to a proper angle, meanwhile, the supporting plate and the transmission cylinder drive the scanning device to rotate to a proper angle through the worm gear rod and the concave plate, and then the spring pin and the sleeve with the hole are used for fixing the positions of the L-shaped plate and the supporting plate, so that the advantage that the angle is convenient to adjust is achieved; and the scanning head can fully scan the content on the paper.

Description

Technical Field

[0001] This utility model relates to the field of document scanners, and more particularly to a document scanner with an adjustable scanning angle. Background Technology

[0002] An archival scanner is a device that uses photoelectric technology and digital processing technology to convert graphic or image information into digital signals through scanning. It is a type of scanning equipment specifically designed for archives, libraries, and other similar institutions. It is a new type of low-carbon and environmentally friendly document scanner.

[0003] Chinese Patent Publication No. CN213585925U discloses a scanner specifically for archives, comprising a placement plate, a support rod, and a scanner. The placement plate has four threaded knobs at its top corners, and a pressure plate is located in the center of each of the four threaded knobs. The support rod has movable blocks on both sides, and two of the movable blocks have rotating blocks at one end. A supplementary light is fixedly connected to the front of each rotating block, and a connecting piece is fixedly connected to the top of each of the two movable blocks. This invention improves the scanning success rate by providing supplementary lighting to the archives during scanning through the supplementary lights on both sides of the support rod. Furthermore, the rotating blocks, connected to the movable blocks by threaded knobs, allow for angle adjustment by loosening the third threaded knob. Loosening the second threaded knob allows for sliding connection between the slider and the groove, enabling vertical adjustment of the supplementary light position.

[0004] In the aforementioned technology, although the position of the supplementary light can be adjusted, the angle of the scanning head is fixed. In special cases, such as when the paper of the document has a certain curvature or the content of the layout is tilted, the scanning head cannot fully scan the content on the paper. Therefore, an archival scanner that is easy to adjust the scanning angle is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a document scanner with an adjustable scanning angle, aiming to improve the problem that existing document scanners cannot adjust the scanning head angle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable scanning angle document scanner includes a support, a circular sleeve fixedly mounted on the top of the support, a transmission cylinder fixedly connected to the inside of the circular sleeve via bearings, a worm gear disposed inside the transmission cylinder, the front and rear ends of the worm gear penetrating the outer side of the transmission cylinder, a concave plate fixedly connected to the left side of the worm gear, a scanning device fixedly connected to the left side of the concave plate, a perforated sleeve fixedly connected to the surface of the circular sleeve, a support plate fixedly connected to the top of the transmission cylinder, a worm fixedly connected to the inside of the support plate via bearings, the bottom end of the worm penetrating into the inside of the transmission cylinder, the worm meshing with the worm gear, an L-shaped plate fixedly connected to the top right side of the support plate, a spring pin fixedly connected to the right side of the L-shaped plate, the left end of the spring pin insert penetrating into the inside of the perforated sleeve, a fixing assembly fixedly connected to the top of the support, and an alignment assembly disposed on the surface of the transmission cylinder.

[0008] As a further description of the above technical solution:

[0009] The fixing component includes a sleeve plate, which is fixedly connected to the top of the bracket. A sliding plate is slidably connected inside the sleeve plate. The left end of the sliding plate is fixedly connected to the right side of the circular sleeve. A screw is threadedly connected to the top of the sleeve plate.

[0010] As a further description of the above technical solution:

[0011] The top of the screw and the top of the rotating rod are both fixedly connected to hexagonal plates, and the bottom of the screw is in contact with the top of the sliding plate;

[0012] As a further description of the above technical solution:

[0013] A fixing rod is fixedly connected to the right side of the transmission cylinder, and the right end of the fixing rod is slidably connected inside the circular sleeve.

[0014] As a further description of the above technical solution:

[0015] Both the front and rear sides of the worm gear surface are fixedly connected with retaining rings, and the surface of the retaining rings is in contact with the inner wall of the transmission cylinder.

[0016] As a further description of the above technical solution:

[0017] A limiting sleeve is fixedly connected to the bottom of the inner wall of the transmission cylinder, and the bottom end of the worm is slidably connected inside the limiting sleeve.

[0018] As a further description of the above technical solution:

[0019] A positioning plate is fixedly connected to the left side of the top of the circular sleeve, and the top of the positioning plate is fixedly connected to the bottom of the perforated sleeve.

[0020] As a further description of the above technical solution:

[0021] The alignment assembly includes an alignment plate, which is fixedly connected to the front and rear sides of the right side of the worm gear. Scale plates are fixedly connected to both the front and back sides of the transmission cylinder.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the worm gear and worm wheel drive the concave plate and scanning device to tilt to a suitable angle. At the same time, the support plate and transmission cylinder drive the scanning device to rotate to a suitable angle through the worm wheel and concave plate. Then, the L-shaped plate and support plate are fixed in position by the spring pin and the perforated sleeve, which achieves the advantage of easy angle adjustment. The scanning head can fully scan the content on the paper.

[0024] 2. In this utility model, by using the sleeve plate, sliding plate and screw in combination, the position of the circular sleeve can be fixed, and at the same time, it is convenient for the user to adjust the position of the scanning device, so that the scanning device can adapt to different sizes of archival paper. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a document scanner with an adjustable scanning angle proposed in this utility model;

[0026] Figure 2 This is a cross-sectional schematic diagram of the sleeve of a document scanner that facilitates the adjustment of the scanning angle, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the perforated sleeve of a document scanner that facilitates the adjustment of the scanning angle, as proposed in this utility model.

[0028] Figure 4 This is a cross-sectional schematic diagram of the circular sleeve of a document scanner that facilitates the adjustment of the scanning angle, as proposed in this utility model.

[0029] Legend:

[0030] 1. Bracket; 2. Circular sleeve; 3. Transmission cylinder; 4. Worm gear; 5. Concave plate; 6. Scanning device; 7. Perforated sleeve; 8. Support plate; 9. Worm; 10. L-shaped plate; 11. Spring pin; 12. Sleeve plate; 13. Slide plate; 14. Screw; 15. Hexagonal plate; 16. Fixing rod; 17. Retaining ring; 18. Limiting sleeve; 19. Positioning plate; 20. Alignment plate; 21. Scale plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-3 This utility model provides an embodiment of an adjustable scanning angle document scanner, comprising a support 1, a circular sleeve 2 fixedly mounted on the top of the support 1, a transmission cylinder 3 fixedly connected inside the circular sleeve 2 via bearings, a worm gear 4 disposed inside the transmission cylinder 3, the front and rear ends of the worm gear 4 penetrating the outer side of the transmission cylinder 3, a fixing rod 16 fixedly connected to the right side of the transmission cylinder 3, the right end of the fixing rod 16 slidably connected inside the circular sleeve 2, the fixing rod 16 supports the transmission cylinder 3, improving the stability of the transmission cylinder 3; a concave plate 5 fixedly connected to the left side of the worm gear 4, a scanning device 6 fixedly connected to the left side of the concave plate 5, the scanning device 6 being a document scanner; a perforated sleeve 7 fixedly connected to the surface of the circular sleeve 2, a positioning plate 19 fixedly connected to the left side of the top of the circular sleeve 2, the top end of the positioning plate 19 fixedly connected to the bottom of the perforated sleeve 7, the positioning plate 19 supports the perforated sleeve 7, improving the support strength of the perforated sleeve 7;

[0033] Reference Figure 2-4 A support plate 8 is fixedly connected to the top of the transmission cylinder 3. A worm 9 is fixedly connected to the inside of the support plate 8 via bearings. The bottom end of the worm 9 penetrates into the interior of the transmission cylinder 3 and meshes with a worm gear 4. Retaining rings 17 are fixedly connected to the front and rear sides of the surface of the worm gear 4. The surface of the retaining rings 17 contacts the inner wall of the transmission cylinder 3. By setting the retaining rings 17, the worm gear 4 can be limited, improving the stability of the worm gear 4 during rotation. A limiting sleeve 18 is fixedly connected to the bottom of the inner wall of the transmission cylinder 3. The bottom end of the worm 9 is slidably connected inside the limiting sleeve 18. By setting the limiting sleeve 18, the bottom end of the worm 9 can be limited, improving the stability of the worm 9 during rotation. An L-shaped plate 10 is fixedly connected to the top of the right side of the support plate 8. A spring pin 11 is fixedly connected to the right side of the L-shaped plate 10. The left end of the spring pin 11 inserts into the interior of the perforated sleeve 7.

[0034] Reference Figure 1-3A fixing component is fixedly connected to the top of the bracket 1. The fixing component includes a sleeve plate 12, which is fixedly connected to the top of the bracket 1. A sliding plate 13 is slidably connected inside the sleeve plate 12. The left end of the sliding plate 13 is fixedly connected to the right side of the circular sleeve 2. A screw 14 is threadedly connected to the top of the sleeve plate 12. By setting the sleeve plate 12, the sliding plate 13 and the screw 14 to cooperate, the position of the circular sleeve 2 can be fixed, and the user can easily adjust the position of the scanning device 6 so that the scanning device 6 can adapt to different sizes of document paper. A hexagonal plate 15 is fixedly connected to the top of the screw 14 and the top of the rotating rod. The bottom of the screw 14 contacts the top of the sliding plate 13. By setting the hexagonal plate 15, the user can easily rotate the screw 14 and avoid the phenomenon that the user cannot effectively rotate the screw 14.

[0035] Reference Figure 2-4 The surface of the transmission cylinder 3 is provided with an alignment component, which includes an alignment plate 20. The alignment plate 20 is fixedly connected to the front and rear sides of the right side of the worm gear 4. The front and back sides of the transmission cylinder 3 are both fixedly connected with scale plates 21. By setting the alignment plate 20 and scale plates 21, it is convenient for the user to view the rotation angle of the scanning device 6, and thus convenient for the user to adjust the scanning device 6 to a suitable angle.

[0036] Working principle: The user first rotates the worm gear 9, which drives the worm wheel 4 to rotate. The worm wheel 4 then drives the concave plate 5 and the scanning device 6 to rotate up or down. When the scanning device 6 is tilted to a suitable angle, the user releases the worm gear 9 and then pulls the spring pin 11 to the right. When the spring pin disengages from the perforated sleeve 7, the user rotates the support plate 8. The support plate 8 drives the transmission cylinder 3 to rotate. The transmission cylinder 3 drives the scanning device 6 to rotate through the worm wheel 4 and the concave plate 5. When the scanning device 6 reaches a suitable angle, the user releases the spring pin 11 and the spring pin 11. The spring pin then engages with the perforated sleeve 7 to fix the L-shaped plate 10 and the support plate 8 in place. Finally, the user places the file on top of the bracket 1 and starts the scanning device 6 to scan and input the data, thus achieving the effect of easy angle adjustment.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An archival scanner for facilitating adjustment of a scan angle, comprising a support (1), characterized in that: The top of the support (1) is fixedly connected with a round sleeve (2), the inside of the round sleeve (2) is fixedly connected with a transmission cylinder (3) through a bearing, the inside of the transmission cylinder (3) is provided with a worm gear rod (4), the front end and the rear end of the worm gear rod (4) penetrate through the outside of the transmission cylinder (3), the left side of the worm gear rod (4) is fixedly connected with a concave plate (5), the left side of the concave plate (5) is fixedly connected with a scanning device (6), the surface of the round sleeve (2) is fixedly connected with a hole sleeve (7), the top of the transmission cylinder (3) is fixedly connected with a supporting plate (8), the inside of the supporting plate (8) is fixedly connected with a worm (9) through a bearing, the bottom end of the worm (9) penetrates into the inside of the transmission cylinder (3), the worm (9) is engaged with the worm gear rod (4), the top of the right side of the supporting plate (8) is fixedly connected with an L-shaped plate (10), the right side of the L-shaped plate (10) is fixedly connected with a spring pin (11), the left end of the spring pin (11) penetrates into the inside of the hole sleeve (7), the top of the support (1) is fixedly connected with a fixing assembly, the surface of the transmission cylinder (3) is provided with an alignment assembly.

2. The archival scanner of claim 1, wherein: The fixing assembly comprises a sleeve plate (12), the sleeve plate (12) is fixedly connected to the top of the support (1), the inside of the sleeve plate (12) is slidably connected with a sliding plate (13), the left end of the sliding plate (13) is fixedly connected to the right side of the round sleeve (2), the top of the sleeve plate (12) is threadedly connected with a screw rod (14).

3. The archival scanner of claim 2, wherein: The top of the screw rod (14) and the top of the rotating rod are both fixedly connected with a hexagonal plate (15), the bottom of the screw rod (14) is in contact with the top of the sliding plate (13).

4. The archival scanner of claim 1, wherein: The right side of the transmission cylinder (3) is fixedly connected with a fixed rod (16), the right end of the fixed rod (16) is slidably connected in the inside of the round sleeve (2).

5. The archival scanner of claim 1, wherein: The front side and the rear side of the surface of the worm gear rod (4) are both fixedly connected with a blocking ring (17), the surface of the blocking ring (17) is in contact with the inner wall of the transmission cylinder (3).

6. The archival scanner of claim 1, wherein: The bottom of the inner wall of the transmission cylinder (3) is fixedly connected with a limiting sleeve (18), the bottom end of the worm (9) is slidably connected in the inside of the limiting sleeve (18).

7. The archival scanner of claim 1, wherein: The left side of the top of the round sleeve (2) is fixedly connected with a positioning plate (19), the top end of the positioning plate (19) is fixedly connected to the bottom of the hole sleeve (7).

8. The archival scanner of claim 1, wherein: The alignment assembly comprises an alignment plate (20), the alignment plate (20) is fixedly connected to the front side and the rear side of the right side of the worm gear rod (4), the front face and the back face of the transmission cylinder (3) are both fixedly connected with a scale plate (21).

Images