Paper pressing device for file inspection
By designing a paper press for file inspection, the inaccuracy of focus caused by unevenness and displacement of the inspection material is solved, the accuracy of the detection results is improved, and the applicability and flexibility of the equipment are enhanced through the multi-through hole design of the adjustment block.
Patent Information
- Application Number
- CN202421039593.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In document inspection, due to the different paper sizes and limited size of the loading platform, the sample material is prone to unevenness or displacement, resulting in inaccurate focus of the Raman spectrometer, which in turn affects the accuracy of the detection results.
A paper press for document inspection is designed, including a transparent base plate, a pressable press plate and an adjustment block. The pressure plate is penetrated through the first through hole, and there are multiple second through holes with different inner diameters on the adjustment block. By sliding the adjustment block, the operator can select a suitable through hole size to meet different experimental conditions.
The sample material is pressed on the bottom plate through a paper press, so that its part is always flat, avoiding unevenness and displacement, ensuring the focus accuracy of the Raman spectrometer, thereby improving the accuracy of the detection results. At the same time, multiple through-hole designs on the adjustment block enhance the applicability and flexibility of the paper press.
Smart Images
Figure CN222671525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of document inspection devices, in particular to a paper presser used for document inspection. Background Art
[0002] Document inspection is a technical investigation and forensic identification method that uses the theory and technical methods of document inspection to study document evidence in illegal and criminal cases and determine the relationship between the document and the facts of the case, the parties or suspects. In document inspection, due to the uniqueness of the inspection material, non-destructive inspection is required for the inspection material. Raman spectroscopy has the advantages of fast, accurate, non-destructive and easy operation in detection, and has broad application prospects in the field of document inspection.
[0003] In actual operation, due to the different sizes of paper, the limited size of the original loading platform, and the hollowing of the loading platform, the sample is prone to unevenness during the inspection process, and it is also easy to shift due to environmental factors. The laser working distance of Raman spectroscopy is 2μm to 3μm. If the sample is uneven or shifted, the Raman spectrometer will not focus accurately, resulting in inaccurate document inspection results. Utility Model Content
[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a paper press for document inspection, which can press the inspection material to make the inspected part of the inspection material flat, thereby ensuring the focusing accuracy of the Raman spectrometer and the accuracy of the inspection results.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a paper press for document inspection, comprising a base plate made of a transparent material; a pressure plate that can be pressed on the base plate, the pressure plate having a first through hole extending therethrough; and an adjustment block that is slidably fitted on the side of the pressure plate away from the base plate, the adjustment block having a plurality of second through holes with different inner diameters extending therethrough, the plurality of second through holes being arranged at intervals along a sliding direction parallel to the adjustment block, the inner diameter of the second through hole with the largest inner diameter being less than or equal to the inner diameter of the first through hole, and the axis of each of the second through holes can coincide with the axis of the first through hole.
[0006] Preferably, the top surface of the pressing plate is recessed to form a slide groove, the adjusting block is slidably fitted in the slide groove, and the first through hole is arranged in the slide groove.
[0007] Preferably, a first alignment mark is provided on the top surface of the pressure plate, and the first alignment mark corresponds to the first through hole and is close to the slide groove; a plurality of second alignment marks are provided on the back of the adjustment block, and each second alignment mark corresponds to a second through hole. When one of the second alignment marks is aligned with the first alignment mark, the axis of the corresponding second through hole coincides with the axis of the first through hole.
[0008] Preferably, two push blocks are provided on the adjusting block, and the two push blocks are respectively close to two sides of the adjusting block in the length direction.
[0009] Preferably, a plurality of counterweights are provided on the top surface of the pressure plate.
[0010] Preferably, four operating columns are provided on the top surface of the pressing plate, and the four operating columns are respectively close to the four corners of the pressing plate.
[0011] Preferably, films are attached to both the top and bottom surfaces of the bottom plate, and the films are close to the edge of the bottom plate.
[0012] Preferably, it also includes two support seats, the base plate can be placed on the two support seats, the support seats are provided with a first magnetic sheet, the pressure plate is provided with two second magnetic sheets, each of the second magnetic sheets is magnetically attracted to the corresponding first magnetic sheet.
[0013] Beneficial effects of the utility model:
[0014] The utility model discloses a paper press for document inspection, which presses the inspection material onto a bottom plate by designing a pressure plate, so that the pressed portion of the inspection material is always flat. Therefore, during the inspection process, the inspection material will not be displaced due to unevenness, thereby ensuring the accuracy of the Raman spectrometer's focusing, thereby improving the accuracy of the inspection results. At the same time, a plurality of second through holes with different inner diameters are designed on the adjustment block. By sliding the adjustment block, the operator can select the second through hole of the appropriate size according to the specific requirements for the test position during the Raman spectrum test, so as to meet different experimental conditions and operating requirements. This design enhances the applicability and flexibility of the paper press, enabling it to adapt to a wider range of experimental scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0016] Figure 1A schematic diagram of the structure of a paper press for document inspection provided by an embodiment of the utility model;
[0017] Figure 2 The exploded diagram of the paper press is shown in FIG.
[0018] Figure 3 is a partial schematic diagram of a first through hole;
[0019] Figure 4 It is a structural diagram of the adjustment block;
[0020] Figure 5 It is a structural schematic diagram of the first alignment mark and the second alignment mark;
[0021] Figure 6 It is a cross-sectional schematic diagram of the pressing plate pressing the sample on the bottom plate;
[0022] Figure 7 It is a structural schematic diagram of the support seat;
[0023] Figure 8 It is a schematic diagram of the structure of two support seats holding up the bottom plate and the pressure plate;
[0024] Fig. 9 for Figure 8 Schematic diagram of the cross section under the state;
[0025] Reference numerals:
[0026] 10. Bottom plate; 11. Film; 20. Pressing plate; 21. First through hole; 22. Slide groove; 23. Limiting protrusion; 24. First alignment mark; 25. Counterweight block; 26. Operating column; 27. Second magnetic sheet; 30. Adjusting block; 31. Second through hole; 32. Second alignment mark; 33. Pushing block; 40. Support seat; 41. First magnetic sheet. DETAILED DESCRIPTION
[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.
[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] like Figure 1-9As shown, in one embodiment of the utility model, a paper press for document inspection is provided, comprising a bottom plate 10, a pressing plate 20 and an adjusting block 30. The bottom plate 10 is made of a transparent material, such as an acrylic plate. The pressing plate 20 can be pressed on the bottom plate 10, and the pressing plate 20 is penetrated by a first through hole 21. The adjusting block 30 is slidably fitted on the side of the pressing plate 20 away from the bottom plate 10. The adjusting block 30 is penetrated by a plurality of second through holes 31 with different inner diameters. The plurality of second through holes 31 are arranged at intervals along a sliding direction parallel to the adjusting block 30. The inner diameter of the second through hole 31 with the largest inner diameter is less than or equal to the inner diameter of the first through hole 21, and the axis of each second through hole 31 can coincide with the axis of the first through hole 21.
[0034] When using a Raman spectrometer to analyze a sample, first place the base plate 10 on the hollow portion of the stage (not shown in the drawing), then place the sample on the base plate 10, and then press the sample with the pressing plate 20 so that the first through hole 21 is aligned with the detection position. By utilizing the gravity of the pressing plate 20 and the cooperation with the base plate 10, the pressed portion of the sample can be flattened.
[0035] The present embodiment discloses a paper press for document inspection, which presses the test material onto the bottom plate 10 by designing a pressing plate 20. In this way, the pressed portion of the test material is always flat. Therefore, during the inspection process, the test material will not be displaced due to unevenness, thereby ensuring the focusing accuracy of the Raman spectrometer and improving the accuracy of the test results. At the same time, a plurality of second through holes 31 with different inner diameters are designed on the adjustment block 30. By sliding the adjustment block 30, the operator can select the second through hole 31 of the appropriate size according to the specific requirements of the test position during the Raman spectrum test to meet different experimental conditions and operating requirements. This design enhances the applicability and flexibility of the paper press, enabling it to adapt to a wider range of experimental scenarios.
[0036] In one embodiment, the top surface of the pressing plate 20 is recessed to form a slide groove 22, the adjusting block 30 is slidably fitted in the slide groove 22, and the first through hole 21 is provided in the slide groove 22. By designing the slide groove 22 on the pressing plate 20, not only can the sliding direction of the adjusting block 30 be restricted, but also the depth of the first through hole 21 can be appropriately reduced, thereby reducing the overall thickness of the first through hole 21 and the adjusting block 30. The side wall of the slide groove 22 forms a limiting protrusion 23, which limits the adjusting block 30 in the slide groove 22, thereby effectively preventing the adjusting block 30 from detaching from the pressing plate 20.
[0037] In one embodiment, a first alignment mark 24 is provided on the top surface of the pressing plate 20, and the first alignment mark 24 corresponds to the first through hole 21 and is close to the slide slot 22. A plurality of second alignment marks 32 are provided on the adjusting block 30 away from the first through hole 21, and each second alignment mark 32 corresponds to a second through hole 31. When one of the second alignment marks 32 is aligned with the first alignment mark 24, the axis of the corresponding second through hole 31 coincides with the axis of the first through hole 21.
[0038] When the inspector needs to slide the adjustment block 30 to align the appropriate second through hole 31 with the first through hole 21, by designing the first alignment mark 24 and the plurality of second alignment marks 32, when one of the second alignment marks 32 is aligned with the first alignment mark 24, the axis of the corresponding second through hole 31 coincides with the axis of the first through hole 21, and at this time, the second through hole 31 is aligned with the first through hole 21. This structural design enables the inspector to quickly determine whether the first through hole 21 is aligned with the second through hole 31, thereby improving the convenience of operation.
[0039] In one embodiment, in order to facilitate the operator to push the adjustment block 30 so that the appropriate second through hole 31 is aligned with the first through hole 21, two push blocks 33 are provided on the adjustment block 30, and the two push blocks 33 are respectively close to the two sides of the adjustment block 30 in the length direction.
[0040] In one embodiment, two counterweights 25 are fixedly mounted on the top surface of the pressing plate 20. By designing the counterweights 25 on the pressing plate 20, the weight of the pressing plate 20 can be increased, thereby avoiding the movement of the pressed portion of the test material and improving the accuracy of the detection.
[0041] In one embodiment, four operating columns 26 are fixedly mounted on the top surface of the pressing plate 20, and the four operating columns 26 are respectively close to the four corners of the pressing plate 20. With the four operating columns 26, the inspector can not only conveniently take the pressing plate 20, but also adjust the position of the pressing plate 20. At the same time, it also avoids direct contact between the fingers and the sample when taking the pressing plate 20, reduces damage to the sample, and ensures the recognizability and integrity of the sample.
[0042] In one embodiment, a film 11 is attached to both the top and bottom surfaces of the bottom plate 10, and the film 11 is close to the edge of the bottom plate 10. By designing the film 11 on the bottom plate 10, when the inspection personnel take the bottom plate 10, they only need to hold the area of the film 11, so that fingerprints will not be left on other areas of the bottom plate 10, ensuring that the bottom plate 10 is clean and tidy.
[0043] In one embodiment, the paper press further includes two support seats 40, the base plate 10 can be placed on the two support seats 40, a first magnetic sheet 41 is provided on the support seat 40, and two second magnetic sheets 27 are provided on the pressing plate 20, and each second magnetic sheet 27 is magnetically attracted to the corresponding first magnetic sheet 41. When the paper press is idle, the base plate 10 and the pressing plate 20 can be placed on the two support seats 40, so that direct contact between the bottom surface of the base plate 10 and the desktop is avoided, and the possibility of scratching the bottom surface of the base plate 10 is reduced. At the same time, by designing two groups of first magnetic sheets 41 and second magnetic sheets 27, the pressing plate 20, the base plate 10 and the two support seats 40 can be closely matched together, ensuring the overall stability, thereby facilitating the placement and storage of the paper press.
[0044] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A paper press for document inspection, characterized in that: include: The bottom plate (10) is made of a transparent material; A pressing plate (20) can be pressed on the bottom plate (10), and a first through hole (21) is passed through the pressing plate (20); and An adjusting block (30) is slidably engaged with a side of the pressure plate (20) away from the bottom plate (10), and the adjusting block (30) is penetrated by a plurality of second through holes (31) with different inner diameters. The plurality of second through holes (31) are arranged at intervals along a sliding direction parallel to the adjusting block (30), and the inner diameter of the second through hole (31) with the largest inner diameter is less than or equal to the inner diameter of the first through hole (21), and the axis of each of the second through holes (31) can coincide with the axis of the first through hole (21).
2. The paper press for document inspection according to claim 1, characterized in that: The top surface of the pressing plate (20) is recessed to form a slide groove (22), the adjusting block (30) is slidably fitted in the slide groove (22), and the first through hole (21) is arranged in the slide groove (22).
3. The paper press for document inspection according to claim 2, characterized in that: A first alignment mark (24) is provided on the top surface of the pressing plate (20), and the first alignment mark (24) corresponds to the first through hole (21) and is close to the sliding groove (22); The adjustment block (30) is provided with a plurality of second alignment marks (32) away from the first through hole (31), each of the second alignment marks (32) corresponding to one of the second through holes (31), and when one of the second alignment marks (32) is aligned with the first alignment mark (24), the axis of the corresponding second through hole (31) coincides with the axis of the first through hole (21).
4. The paper press for document inspection according to claim 1, characterized in that: The adjusting block (30) is provided with two push blocks (33), and the two push blocks (33) are respectively close to two sides of the adjusting block (30) in the length direction.
5. The paper press for document inspection according to claim 1, characterized in that: A plurality of counterweight blocks (25) are provided on the top surface of the pressure plate (20).
6. The paper press for document inspection according to claim 1, characterized in that: Four operating columns (26) are provided on the top surface of the pressing plate (20), and the four operating columns (26) are respectively close to the four corners of the pressing plate (20).
7. The paper press for document inspection according to claim 1, characterized in that: A film (11) is attached to both the top surface and the bottom surface of the bottom plate (10), and the film (11) is close to the edge of the bottom plate (10).
8. The paper press for document inspection according to claim 1, characterized in that: It also comprises two support seats (40), the bottom plate (10) can be placed on the two support seats (40), a first magnetic attraction sheet (41) is provided on the support seat (40), and two second magnetic attraction sheets (27) are provided on the pressing plate (20), and each of the second magnetic attraction sheets (27) is magnetically attracted to the corresponding first magnetic attraction sheet (41).