Paper document scanner with anti-static device for press glass
By using conductive optical glass in the scanner and coating it with a transparent conductive film, the problem of static electricity causing the glass to adhere and stick during scanning is solved, enabling timely discharge and grounding of static electricity, thus improving the reliability and convenience of scanning.
Patent Information
- Application Number
- CN202521968646.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-12
AI Technical Summary
Scanners using ordinary optical glass generate static electricity during scanning due to friction, causing the glass to adhere to and stick to the paper, especially when scanning bound documents, which can easily lead to accidental page turning.
Conductive optical glass is used as the paper press glass, and a transparent conductive coating layer is deposited on its surface. The static electricity generated is discharged through a grounding wire to prevent static electricity from adsorbing onto the paper.
It effectively eliminates static electricity, prevents the paper from being attracted and stuck to the press glass, reduces accidental page turning, and facilitates the replacement and maintenance of the grounding wire.
Smart Images
Figure CN224684244U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scanner technology, specifically to an anti-static device for a paper document scanner with a document pressing glass. Background Technology
[0002] Scanners that use a platen glass to flatten paper generally have two glass configurations: one uses a single flat platen glass, and the other uses a V-shaped platen glass. Currently, scanners using platen glass to flatten paper documents use ordinary optical glass, which is mainly composed of oxides such as silicon and boron. Each friction between this glass and the paper surface generates static electricity. Excessive static electricity can cause the platen glass to attract and stick to the paper, especially when scanning bound documents. This sticking can cause the platen glass to stick to the paper during page turning or result in accidental page turning. Utility Model Content
[0003] The purpose of this invention is to provide an anti-static device for a paper document scanner with a press glass, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-static device for a paper document scanner with a press glass, comprising an operating platform, the operating platform being located at the bottom of an existing scanner device and grounded, a scanning head being installed above the operating platform, a glass press frame being provided between the scanning head and the operating platform, a press glass being installed on the glass press frame, the press glass being conductive optical glass, and a grounding wire being provided between the press glass and the operating platform.
[0005] Preferably, the glass holder is a flat plate holder, the press glass is mounted on the flat plate holder in a flat plate shape, and the grounding wire is connected between the press glass and the operating platform.
[0006] Preferably, the glass holder is a V-shaped holder, the press glass is mounted in a V-shape on the V-shaped holder, and the grounding wire is connected between the press glass and the operating platform.
[0007] Preferably, the document holding glass includes a basic optical glass layer, and a light-transmitting conductive coating layer is provided on the side of the basic optical glass layer near the operating platform. One end of the grounding wire is electrically connected to the light-transmitting conductive coating layer. The combination of the basic optical glass layer and the light-transmitting conductive coating layer enables the side of the document holding glass near the paper document to have conductive properties. The light-transmitting conductive coating layer preferably has a low-resistance metal oxide coating with a resistivity of less than 50Ω. The light transmittance of the glass after coating is not less than 88%. Here, the document holding glass can be selected from existing LOW-E glass. LOW-E glass is a film system product composed of multiple layers of metal or other compounds deposited on the glass surface.
[0008] Preferably, a conductive sheet is electrically connected to the light-transmitting conductive coating layer, and a connecting wire is connected to the conductive sheet. A detachable insertion structure is provided between the connecting wire and the grounding wire. Through the cooperation of the conductive sheet and the connecting wire, an electrical connection can be achieved between the grounding wire and the light-transmitting conductive coating layer on the press glass. This allows the press glass to promptly transfer static electricity to the operating platform through the grounding wire when it comes into contact with paper documents, and then to the ground through the operating platform, thus preventing static electricity from adsorbing onto the paper documents.
[0009] Preferably, the detachable mating structure includes a fixing head located at the end of the connecting wire away from the conductive sheet, and a connecting head provided at the end of the grounding wire. The connecting head and the fixing head are electrically connected, and a detachable connection between the grounding wire and the connecting wire can be achieved through the cooperation of the fixing head and the connecting head.
[0010] Preferably, it also includes a protective sleeve, which is detachably installed on the edge of the glass pressure frame. The outer end of the protective sleeve is provided with an anti-bending sleeve, which has a snap-fit groove and wraps around the outside of the grounding wire through the snap-fit groove. The protective sleeve can protect the connecting wire and the grounding wire at the connection port, and the anti-bending sleeve can improve the anti-bending effect of the grounding wire.
[0011] Preferably, the bottom of the outer end of the glass holder is provided with a locking edge, and the protective sleeve is provided with a locking opening. The protective sleeve is fixed to the locking edge by the locking opening and the two ends of the protective sleeve are fitted onto the locking edge by the locking opening, so as to realize the detachable installation of the protective sleeve at the bottom of the glass holder, thereby realizing the protection at the connection port of the grounding wire and the connecting wire.
[0012] Preferably, the top of the protective sleeve is provided with an adhesive layer, and the protective sleeve is fixed to the bottom of the glass holder by the adhesive layer. The adhesive layer is preferably nano double-sided adhesive. The adhesive layer enables the protective sleeve to be detachably installed at the bottom of the glass holder. In this way, when the grounding wire needs to be replaced, the protective sleeve can be easily removed.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In the scanning operation of paper documents, the paper documents are placed on the operating platform. During the scanning operation, when the flat or V-shaped pressure glass comes into contact with the paper and generates static electricity, the conductive surface formed by the light-transmitting conductive coating layer on the pressure glass will promptly introduce the static electricity into the grounding facility through the grounding wire to eliminate it. This avoids the adhesion and sticking of the paper by the pressure glass due to the generation of static electricity, and reduces the situation of the pressure glass sticking to the paper or accidentally turning the paper during the page turning process of the bound document.
[0014] 2. In this utility model, the grounding wire and the press glass are detachably connected through the cooperation of a conductive sheet, a connecting wire, a fixing head, and a connecting head. This facilitates the flexible replacement of the grounding wire when it is damaged. The connection between the grounding wire and the operating platform in this utility model is similar to the connection structure between the grounding wire and the press glass. 3. By setting a protective sleeve and an anti-bending sleeve, this utility model can improve the connection stability of the connecting wire and the grounding wire at the connection end, and at the same time prevent the grounding wire from bending due to the lifting and lowering of the press glass, thus improving the protection effect of the grounding wire during use. In addition, the protective sleeve in this utility model is convenient to remove, making it easy to fix, protect, and replace the grounding wire. Attached Figure Description
[0015] Figures 1-3 This is a schematic diagram of the overall structure of the pressure glass in this utility model when it is flat. Figures 4-5 This is a schematic diagram of the overall structure of the pressure glass in this utility model when it is V-shaped; Figure 6 This is a schematic diagram of the installation structure of the protective sleeve in this utility model; Figure 7 This is an exploded view of the connection structure between the grounding conductor and the connecting conductor in this utility model; Figure 8 This is a schematic diagram of the overall structure of the protective sleeve and the anti-bending sleeve in this utility model; Figure 9 This is a schematic diagram showing the positional structure between the basic optical glass layer and the light-transmitting conductive coating layer in this utility model.
[0016] The components represented by each number in the attached diagram are listed below: 1. Operating platform; 2. Scanning head; 3. Glass holder; 4. Document holding glass; 5. Grounding wire; 6. Basic optical glass layer; 7. Transparent conductive coating layer; 8. Conductive sheet; 9. Connecting wire; 10. Fixing head; 11. Connecting head; 12. Protective sleeve; 13. Anti-bending sleeve; 14. Insertion slot; 15. Engaging edge; 16. Engaging opening; 17. Paper document. Detailed Implementation
[0017] 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.
[0018] This utility model provides a technical solution: Please refer to Figures 1-9An anti-static device for a paper document scanner with a press glass includes an operating platform 1, which is located at the bottom of an existing scanner device and grounded. A scanning head 2 is installed above the operating platform 1. A glass press frame 3 is provided between the scanning head 2 and the operating platform 1. A press glass 4 is installed on the glass press frame 3. The press glass 4 is conductive optical glass. A grounding wire 5 is provided between the press glass 4 and the operating platform 1.
[0019] Please see Figures 1-9 It should also be noted that the glass holder 3 is a flat holder, the press glass 4 is mounted on the flat holder in a flat shape, and the grounding wire 5 is connected between the press glass 4 and the operating platform 1.
[0020] Please see Figures 1-9 It should also be noted that the glass holder 3 is a V-shaped holder, the press glass 4 is installed in a V-shape on the V-shaped holder, and the grounding wire 5 is connected between the press glass 4 and the operating platform 1.
[0021] Please see Figures 1-9 It should also be noted that the document pressing glass 4 includes a basic optical glass layer 6. A light-transmitting conductive coating layer 7 is provided on the side of the basic optical glass layer 6 closest to the operating platform 1. One end of the grounding wire 5 is electrically connected to the light-transmitting conductive coating layer 7. The combination of the basic optical glass layer 6 and the light-transmitting conductive coating layer 7 enables the side of the document pressing glass 4 closest to the paper document to have conductive properties. Preferably, the light-transmitting conductive coating layer 7 has a low-resistance metal oxide coating with a resistivity of less than 50Ω, and the light transmittance of the glass after coating is not less than 88%. Here, the document pressing glass 4 can be selected from existing LOW-E glass, which is a glass surface coated with multiple layers of a film system composed of metals or other compounds.
[0022] Please see Figures 1-9 It should also be noted that a conductive sheet 8 is electrically connected to the light-transmitting conductive coating layer 7, and a connecting wire 9 is connected to the conductive sheet 8. A detachable insertion structure is provided between the connecting wire 9 and the grounding wire 5. Through the cooperation of the conductive sheet 8 and the connecting wire 9, an electrical connection can be achieved between the grounding wire 5 and the light-transmitting conductive coating layer 7 on the press glass 4. This allows the press glass 4 to promptly transfer static electricity to the operating platform 1 through the grounding wire 5 when it comes into contact with paper documents, and then to the ground through the operating platform 1, thus preventing static electricity from adsorbing onto the paper documents.
[0023] Please see Figures 1-9 It should also be noted that the detachable plug-in structure includes a fixing head 10, which is located at the end of the connecting wire 9 away from the conductive plate 8. The end of the grounding wire 5 is provided with a connector 11, which is electrically plugged into the fixing head 10. The detachable connection between the grounding wire 5 and the connecting wire 9 can be achieved through the cooperation of the fixing head 10 and the connector 11.
[0024] This utility model also includes a protective sleeve 12, which is detachably installed on the edge of the glass pressure frame 3. The outer end of the protective sleeve 12 is provided with an anti-bending sleeve 13, and the anti-bending sleeve 13 is provided with a snap-in groove 14. The anti-bending sleeve 13 is wrapped around the outside of the grounding wire 5 through the snap-in groove 14. The protective sleeve 12 can protect the connecting wire 9 and the grounding wire 5 at the connection port, and the anti-bending sleeve 13 can improve the anti-bending effect of the grounding wire 5.
[0025] Please see Figures 1-9 It should also be noted that the bottom of the outer end of the glass pressure frame 3 is provided with a locking edge 15, and the protective sleeve 12 is provided with a locking opening 16. The protective sleeve 12 is limited and locked onto the locking edge 15 through the locking opening 16. The two ends of the protective sleeve 12 are sleeved onto the locking edge 15 through the locking opening 16, so that the protective sleeve 12 can be detachably installed at the bottom of the glass pressure frame 3, thereby achieving protection at the connection port of the grounding wire 5 and the connecting wire 9.
[0026] Please see Figures 1-9 It should also be noted that the top of the protective sleeve 12 is provided with an adhesive layer. The protective sleeve 12 is fixed to the bottom of the glass pressure frame 3 by the adhesive layer. The adhesive layer is preferably nano double-sided adhesive. The adhesive layer enables the protective sleeve 12 to be detachably installed at the bottom of the glass pressure frame 3. In this way, when the grounding wire 5 needs to be replaced, the protective sleeve 12 can be easily removed.
[0027] In summary, the working principle and specific workflow of this utility model are as follows: In the scanning process of paper documents, the paper documents are placed on the operating platform 1. During the scanning process, when the flat or V-shaped pressure glass 4 comes into contact with the paper and generates static electricity, the conductive surface formed by the light-transmitting conductive coating layer 7 on the pressure glass 4 will promptly introduce the static electricity into the grounding facility of the operating platform 1 through the grounding wire 5 to eliminate it. This avoids the adhesion and sticking of the paper by the pressure glass 4 due to static electricity, and reduces the situation of the pressure glass 4 sticking to the paper or accidentally turning the paper during the page turning process of the bound document. In this utility model, the grounding wire 5 and the pressure glass 4 are detachably connected through the cooperation of the conductive sheet 8, the connecting wire 9, the fixing head 10 and the connecting head 11, which makes it easy to replace the grounding wire 5 when it is damaged. In this utility model, the connection structure between the grounding wire 5 and the operating platform 1 refers to the connection structure between the grounding wire 5 and the press glass 4, or the existing electrical connection structure between the grounding wire 5 and the grounding structure of the operating platform 1 can be used.
[0028] By setting a protective sleeve 12 and an anti-bending sleeve 13, this utility model can improve the connection stability of the connecting wire 9 and the grounding wire 5 at the connection end, and at the same time prevent the grounding wire 5 from bending due to the lifting and lowering of the pressing glass 4, thereby improving the protective effect of the grounding wire 5 during use. Furthermore, the protective sleeve 12 in this utility model is easy to remove, facilitating the fixing, protection, and replacement of the grounding wire 5.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An anti-static device for a paper document scanner with a press glass, comprising an operating platform (1), the operating platform (1) being located at the bottom of an existing scanner device and grounded, a scanning head (2) being mounted above the operating platform (1), a glass press frame (3) being provided between the scanning head (2) and the operating platform (1), and a press glass (4) being mounted on the glass press frame (3), characterized in that: The press glass (4) is conductive optical glass, and a grounding wire (5) is provided between the press glass (4) and the operating platform (1).
2. The anti-static device for a paper document scanner with a press glass according to claim 1, characterized in that: The glass holder (3) is a flat plate holder, and the press glass (4) is mounted on the flat plate holder in a flat plate shape. The grounding wire (5) is connected between the press glass (4) and the operating platform (1).
3. The anti-static device for a paper document scanner with a document pressing glass according to claim 1, characterized in that: The glass holder (3) is a V-shaped holder, and the press glass (4) is installed in a V-shape on the V-shaped holder. The grounding wire (5) is connected between the press glass (4) and the operating platform (1).
4. The anti-static device for a paper document scanner with a document pressing glass according to claim 1, characterized in that: The press glass (4) includes a basic optical glass layer (6), and a light-transmitting conductive coating layer (7) is provided on the side of the basic optical glass layer (6) near the operating platform (1). One end of the grounding wire (5) is electrically connected to the light-transmitting conductive coating layer (7).
5. The anti-static device for a paper document scanner with a press glass according to claim 4, characterized in that: The transparent conductive coating layer (7) is electrically connected to a conductive sheet (8), and a connecting wire (9) is connected to the conductive sheet (8). A detachable insertion structure is provided between the connecting wire (9) and the grounding wire (5).
6. The anti-static device for a paper document scanner with a document pressing glass according to claim 5, characterized in that: The detachable plug-in structure includes a fixing head (10), which is located at the end of the connecting wire (9) away from the conductive sheet (8). The end of the grounding wire (5) is provided with a connector (11), which is electrically plugged into the fixing head (10).
7. The anti-static device for a paper document scanner with a document pressing glass according to claim 6, characterized in that: It also includes a protective sleeve (12), which is detachably installed on the edge of the glass pressure frame (3). The outer end of the protective sleeve (12) is provided with an anti-bending sleeve (13), and the anti-bending sleeve (13) is provided with a snap-in groove (14), and is wrapped around the outside of the grounding wire (5) through the snap-in groove (14).
8. The anti-static device for a paper document scanner with a press glass according to claim 7, characterized in that: The bottom of the outer end of the glass holder (3) is provided with a locking edge (15), and the protective sleeve (12) is provided with a locking opening (16). The protective sleeve (12) is fixed to the locking edge (15) by the locking opening (16).
9. The anti-static device for a paper document scanner with a document pressing glass according to claim 7, characterized in that: The top of the protective sleeve (12) is provided with an adhesive layer, and the protective sleeve (12) is fixed to the bottom of the glass holder (3) by the adhesive layer.