Paper pressing wheel mechanism of scanner

Abstract

The utility model discloses a paper pressing wheel mechanism of a scanner, which relates to the technical field of scanners, and comprises a vertical plate, one side of the vertical plate is provided with an insertion port, the vertical plate is internally provided with a sliding chute I, the sliding chute I is internally provided with a pressing wheel mechanism, the pressing wheel mechanism comprises a sliding block, and the sliding block is provided with an insertion port. A telescopic mechanism is arranged on the side, away from the vertical plate, of the sliding block, an inserting plate is inserted into the inserting opening, a fixing plate is fixedly connected to the bottom of the inserting plate, a sliding rod is fixedly connected to the side, close to the pressing wheel, of the fixing plate, and a fixing block is slidably connected to the outer surface of the sliding rod. By arranging the vertical plate, the pressing wheel mechanism, the pressing wheel, the plug board and the adjusting mechanism, the paper pressing wheel mechanism of the scanner can be matched with paper with different thicknesses and widths, meanwhile, the pressure of the pressing wheel on the paper can be adjusted in a self-adaptive mode when the paper is guided to be scanned, and the situation that the paper is torn due to too large pressure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to scanner technical field, especially, relate to a scanner's paper pressing wheel mechanism. BACKGROUND

[0002] The paper pressing wheel mechanism mainly plays the role of fixing, pressing and conveying the scanned paper in the scanner, through the accurate control of the paper pressing wheel, the paper can be ensured to keep flat and stable in the scanning process, thereby improving the definition and accuracy of scanning.

[0003] At present, most of the pressure wheel mechanisms are composed of pressure wheels, and the pressure wheels are fixedly arranged, which cannot effectively match the paper of different thickness and width, and the pressure of the pressure wheels on the paper cannot be self-adaptively adjusted, and replacing the equipment will result in high cost. UTILITY MODEL CONTENT

[0004] The utility model discloses a scanner's paper pressing wheel mechanism, through setting up vertical board, pressure wheel mechanism, pressure wheel, plug -in board, adjusting mechanism, make this scanner paper pressing wheel mechanism can match different thickness and width paper, can self -adaptation adjustment pressure wheel on the size of the pressure of paper when guiding paper scanning, avoid the situation such as paper tearing due to excessive pressure.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a scanner's paper pressing wheel mechanism, including vertical board, the one side of vertical board is seted up and is inserted the interface, the inside of vertical board is seted up and has the sliding slot no.

[0007] Further, the inside of the sliding block is penetrated by a limiting rod, the limiting rod is slidably connected with the sliding block, the limiting rod is fixedly connected with the inner wall of the vertical plate, a telescopic spring no.

[0008] Further, the telescopic mechanism includes a rotating shaft, the rotating shaft is fixedly connected with a pressure wheel at an end away from the sliding block, and the rotating shaft is fixedly connected with a stopper on the outer surface.

[0009] Further, the outer surface of the block is fixedly connected with a supporting ring one, the outer surface of the rotating shaft is slidably connected with a sleeve, the inner portion of the sleeve is provided with a sliding groove two, and the block slides in the sliding groove two.

[0010] Further, the inner surface of the supporting ring one is in contact with the outer surface of the sleeve, the outer surface of the sleeve away from the sliding block is fixedly connected with a supporting ring two, and the outer surface of the sleeve is sleeved with a telescopic spring two.

[0011] Further, the two ends of the telescopic spring two are fixedly connected with the surfaces of the supporting ring two and the supporting ring one respectively, the end of the sleeve away from the supporting ring two is rotatably connected with the sliding block, and the supporting ring two is slidably connected with the inner wall of the pressing wheel.

[0012] Further, the adjusting mechanism comprises a threaded rod, the outer surfaces of the two ends of the threaded rod are provided with symmetrical threads, the threads on the outer surface of the threaded rod are engaged with a telescopic pipe which is rotatably connected, the outer surface of the threaded rod is fixedly connected with a rotating handle, and the end of the telescopic pipe away from the threaded rod is fixedly connected with the outer wall of the fixed plate.

[0013] The utility model has the following beneficial effects:

[0014] 1、 the utility model discloses a fixed plate moves and makes the insertion board open the vertical board when moving to make the sliding block be pulled to make the sleeve slide along the surface of the rotating shaft with the telescopic spring two is stretched, and after completing the extension, because the pressing wheel can continue to rotate, and the upper surface of the bearing plate is also expanded synchronously, so that the paper of width greater can pass through the upper surface of the bearing plate, so that the paper of different width can be matched.

[0015] 2、 the utility model discloses for the paper of thickness greater, will exert pressure to the pressing wheel, makes the pressing wheel lift or sink, in this process makes the pressing wheel drive the rotating shaft synchronous lift or sink, makes the sleeve drive the sliding block along the limit rod and slides, makes the telescopic spring one be compressed or stretched, thereby relieving the pressure from the paper due to thickness, so that the pressing wheel can exert relatively stable pressure to the paper, guarantee that the paper can keep the flatness in the scanning process, thereby improving the scanning effect.

[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described in the following description are only some embodiments of the present application, and for the ordinary skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is the whole structure schematic view of the present application.

[0019] Figure 2 It is the slide rod structure schematic view of the present application.

[0020] Figure 3 It is the compression wheel mechanism structure schematic view of the present application.

[0021] Figure 4 It is the adjusting mechanism structure schematic view of the present application.

[0022] Figure 5 It is the telescopic mechanism structure schematic view of the present application.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, vertical plate; 101, plug interface; 102, sliding groove one; 2, compression wheel mechanism; 201, sliding block; 202, limiting rod; 203, telescopic spring one; 3, telescopic mechanism; 301, rotating shaft; 302, stop block; 303, support ring one; 304, sleeve; 305, sliding groove two; 306, support ring two; 307, telescopic spring two; 4, compression wheel; 5, plug-in plate; 6, fixed plate; 7, slide rod; 8, fixed block; 9, bearing plate; 10, guide wheel; 11, adjusting mechanism; 111, threaded rod; 112, telescopic pipe; 113, handle. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in the following by combining with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Please refer to Figures 1-5As shown, the utility model of a kind of scanner's paper wheel mechanism, including vertical board 1, the side of vertical board 1 is provided with plug interface 101, the inside of vertical board 1 is provided with sliding slot one 102, sliding slot one 102 inside is provided with pressure wheel mechanism 2, pressure wheel mechanism 2 includes sliding block 201, the side of sliding block 201 away from vertical board 1 is provided with telescopic mechanism 3, the inside of plug interface 101 is plugged with plug-in plate 5, the bottom of plug-in plate 5 is fixedly connected with fixed plate 6, the side of fixed plate 6 close to pressure wheel 4 is fixedly connected with slide bar 7, the outer surface of slide bar 7 is slidably connected with fixed block 8, the top of fixed block 8 is fixedly connected with bearing plate 9, the inside of bearing plate 9 is rotatably connected with guide wheel 10, the bottom of bearing plate 9 is provided with adjusting mechanism 11.

[0027] As shown in the figure, Figure 3 The inside of sliding block 201 is penetrated by limiting rod 202, limiting rod 202 is slidably connected with sliding block 201, limiting rod 202 is fixedly connected with the inner wall of vertical board 1, telescopic spring one 203 is sleeved on the surface of limiting rod 202, the two ends of telescopic spring one 203 are fixedly connected with the surface of sliding block 201 and the inner wall of vertical board 1 respectively, sliding block 201 slides along limiting rod 202, so that telescopic spring one 203 is compressed or stretched, thereby relieving the pressure generated by the thickness of the paper.

[0028] As shown in the figure, Figure 5 Telescopic mechanism 3 includes rotating shaft 301, the end of rotating shaft 301 away from sliding block 201 is fixedly connected with pressure wheel 4, rotating shaft 301 outer surface is fixedly connected with stop block 302, rotating shaft 301 rotates and pushes sleeve 304 to rotate synchronously through stop block 302.

[0029] As shown in the figure, Figure 5 The outer surface of stop block 302 is fixedly connected with support ring one 303, the outer surface of rotating shaft 301 is slidably connected with sleeve 304, the inside of sleeve 304 is provided with sliding slot two 305, stop block 302 slides inside sliding slot two 305.

[0030] As shown in the figure, Figure 5 The inner surface of support ring one 303 is in contact with the outer surface of sleeve 304, the surface of the end of sleeve 304 away from sliding block 201 is fixedly connected with support ring two 306, the outer surface of sleeve 304 is sleeved with telescopic spring two 307, sliding block 201 is pulled, so that sliding block 201 drives sleeve 304 to slide along the surface of rotating shaft 301, and telescopic spring two 307 is stretched.

[0031] As shown in the figure, Figure 5 The two ends of telescopic spring two 307 are fixedly connected with the surface of support ring two 306 and support ring one 303 respectively, the end of sleeve 304 away from support ring two 306 is rotatably connected with sliding block 201, support ring two 306 is slidably connected with the inner wall of pressure wheel 4.

[0032] Wherein, as shown in Figure 4 The adjusting mechanism 11 comprises a threaded rod 111, the outer surfaces of the two ends of the threaded rod 111 are provided with symmetrical threads, a telescopic pipe 112 is rotationally connected on the threads of the outer surface of the threaded rod 111, a handle 113 is fixedly connected to the outer surface of the threaded rod 111, one end of the telescopic pipe 112 away from the threaded rod 111 is fixedly connected to the outer wall of the fixed plate 6, the handle 113 rotates the threaded rod 111, and the telescopic pipe 112 rotates in mesh with the surface of the threaded rod 111, so that the telescopic pipe 112 slides along the surface of the threaded rod 111, and the telescopic pipe 112 pushes the fixed plate 6.

[0033] One specific application of the embodiment is:

[0034] When the staff needs to use the device, first in the initial state, adjust the adjusting mechanism 11 according to the distance between the current vertical plates 1, specifically, first rotate the threaded rod 111 through the handle 113, and the telescopic pipe 112 rotates in mesh with the surface of the threaded rod 111, so that the telescopic pipe 112 slides along the surface of the threaded rod 111, and the telescopic pipe 112 pushes the fixed plate 6, thereby driving the plug-in plate 5 to move, and after adjusting to the appropriate position, aligning the plug-in plate 5 with the plug-in port 101 and plugging in, due to the arrangement of the slide rod 7 and the fixed block 8, the bearing plate 9 can be installed synchronously after the plug-in plate 5 is installed, and the arrangement of the fixed block 8 and the slide rod 7 prevents the bearing plate 9 from rotating, thereby completing the installation of the plug-in plate 5 and the bearing plate 9, and then adjusting the distance between the plug-in plates 5 according to the actual paper width, when a paper with a larger width needs to be adapted, repeating the above adjustment operation makes the fixed plate 6 drive the plug-in plate 5 to move, and because the plug-in plate 5 is plugged into the plug-in port 101, the plug-in plate 5 will expand the vertical plate 1 when moving, thereby pulling the sliding block 201, so that the sliding block 201 drives the sleeve 304 to slide along the surface of the rotating shaft 301, and the second telescopic spring 307 is stretched, after expansion, the pressure roller 4 can continue to rotate, and the upper surface of the bearing plate 9 is also expanded synchronously, so that a paper with a larger width can pass through the upper surface of the bearing plate 9, thereby matching papers of different widths, and being limited by the plug-in plate 5 on both sides, the paper flows more smoothly under the action of the guide wheel 10, when the paper passes through the surface of the pressure roller 4, at this time, for a paper with a larger thickness, the pressure roller 4 will be subjected to pressure, so that the pressure roller 4 is lifted or sunken, in this process, the pressure roller 4 drives the rotating shaft 301 to be lifted or sunken synchronously, so that the sleeve 304 drives the sliding block 201 to slide along the limiting rod 202, so that the first telescopic spring 203 is compressed or stretched, thereby relieving the pressure from the paper due to the thickness, so that the pressure roller 4 can exert a relatively stable pressure on the paper, ensuring that the paper can maintain flatness during scanning, thereby improving the scanning effect.

[0035] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A platen roller mechanism of a scanner comprising a vertical plate (1), characterized in that: The side of the vertical plate (1) is provided with an insertion port (101), and the inside of the vertical plate (1) is provided with a sliding groove (102), and the inside of the sliding groove (102) is provided with a pressure roller mechanism (2), and the pressure roller mechanism (2) comprises a sliding block (201), and the side away from the vertical plate (1) of the sliding block (201) is provided with a telescopic mechanism (3), and the inside of the insertion port (101) is provided with an insertion plate (5), and the bottom of the insertion plate (5) is fixedly connected with a fixed plate (6), and the side close to the pressure roller (4) of the fixed plate (6) is fixedly connected with a sliding rod (7), and the outer surface of the sliding rod (7) is slidably connected with a fixed block (8), and the top of the fixed block (8) is fixedly connected with a bearing plate (9), and the inside of the bearing plate (9) is rotatably connected with a guide wheel (10), and the bottom of the bearing plate (9) is provided with an adjusting mechanism (11).

2. The pinch roller mechanism of a scanner according to claim 1, wherein, The inside of the sliding block (201) penetrates a limiting rod (202), the limiting rod (202) is slidably connected with the sliding block (201), and the limiting rod (202) is fixedly connected with the inner wall of the vertical plate (1), and the surface of the limiting rod (202) is sleeved with a telescopic spring (203), and the two ends of the telescopic spring (203) are fixedly connected with the surface of the sliding block (201) and the inner wall of the vertical plate (1) respectively.

3. The pinch roller mechanism of claim 1, wherein, The telescopic mechanism (3) comprises a rotating shaft (301), and the end away from the sliding block (201) of the rotating shaft (301) is fixedly connected with a pressure roller (4), and the outer surface of the rotating shaft (301) is fixedly connected with a stop block (302).

4. The pinch roller mechanism of claim 3 wherein, The outer surface of the stop block (302) is fixedly connected with a supporting ring (303), the outer surface of the rotating shaft (301) is slidably connected with a sleeve (304), the inside of the sleeve (304) is provided with a sliding groove (305), and the stop block (302) slides in the sliding groove (305).

5. The pinch roller mechanism of claim 4 wherein, The inner surface of the supporting ring (303) is in contact with the outer surface of the sleeve (304), the end away from the sliding block (201) of the sleeve (304) is fixedly connected with a supporting ring (306), and the outer surface of the sleeve (304) is sleeved with a telescopic spring (307).

6. The pinch roller mechanism of claim 5 wherein, The two ends of the telescopic spring (307) are fixedly connected with the surface of the supporting ring (306) and the supporting ring (303) respectively, the end away from the supporting ring (306) of the sleeve (304) is rotatably connected with the sliding block (201), and the supporting ring (306) is slidably connected with the inner wall of the pressure roller (4).

7. The pinch roller mechanism of a scanner according to claim 1, wherein, The adjusting mechanism (11) comprises a threaded rod (111), the outer surfaces of the two ends of the threaded rod (111) are provided with symmetrical threads, the threads on the outer surface of the threaded rod (111) are engaged with a telescopic pipe (112) which is rotatably connected, the outer surface of the threaded rod (111) is fixedly connected with a rotating handle (113), and the end away from the threaded rod (111) of the telescopic pipe (112) is fixedly connected with the outer wall of the fixed plate (6).

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