Certificate card book with hardware rotating shaft structure and capable of flexibly superposing page number
By using the bent parts of the male and female sheet metal parts and the intermediate sheet metal parts in conjunction with the pivot parts, the problem of unstable connection of multiple pages in the metal ID card holder is solved, achieving a stable connection of multiple pages and a high-end textured ID card holder design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ZHANGMUTOU HONGJUN HARDWARE & PLASTIC PRODUCTS FACTORY (INDIVIDUAL IND & COMMERCIAL HOUSEHOLD)
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-15
AI Technical Summary
The existing hinge structure of metal ID card holders cannot stably connect multiple pages, and the adhesive structure is prone to loosening during long-term use, affecting service life and user experience.
By using the face sheet metal male part, face sheet metal female part and the bending part of the middle sheet metal part in conjunction with the pivot part, a stable connection of multi-page metal card plate is achieved, replacing the traditional bonding structure.
It enables flexible stacking and stable connection of multi-page metal panels, improving structural stability and service life, retaining the metallic texture, and enhancing the product's quality and aesthetics.
Smart Images

Figure CN224234874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of document card holder technology, and in particular to a document card holder with a metal hinge structure that can flexibly stack pages. Background Technology
[0002] In modern society, people need to carry various documents such as ID cards, driver's licenses, vehicle registration certificates, bank cards, and credit cards for various needs such as identity verification, transaction payment, and driving. In order to achieve orderly storage, convenient access, and effective protection of these documents, document card holders have emerged as a special storage tool.
[0003] Currently, to meet the functional requirements of multi-page folding and storage, the frames of ID card holders on the market are usually made of soft materials such as silicone and leather, or partially foldable hard materials. Although these materials can achieve basic folding and connection functions, they lack the hard texture, exquisite appearance and durability unique to metal hardware. With the improvement of people's quality of life and the diversification of aesthetic needs, the requirements for ID card holders are no longer limited to basic storage functions. The market demand for ID card holders made with metal hardware and with a high-end feel is becoming increasingly prominent.
[0004] However, existing ID card holders made of metal hardware have significant structural design flaws. Due to the rigidity of metal, the connection between adjacent pages usually relies on a hinge structure to achieve relative rotation. However, limited by the design principle of the hinge structure, it cannot simultaneously achieve a stable connection of multiple metal plates. To solve the problem of connecting multiple pages, existing products often use adhesive or other alternative structures at the connection points. Although such adhesive structures can meet basic connection requirements in the initial use, under the influence of long-term frequent opening and closing and external environmental factors (such as temperature changes, humidity effects, and external friction), the adhesive strength will gradually decrease, easily leading to problems such as loose connections and page separation. This seriously affects the service life and user experience of the ID card holder, making it difficult to meet users' reliability requirements for metal ID card holders. Utility Model Content
[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.
[0006] A flexible stackable card holder with a metal hinge structure includes a first face card plate, a second face card plate, and at least one middle card plate. Each of the first face card plate, the second face card plate, and the middle card plate is provided with a card-binding pocket structure for storing documents. A face sheet metal male part is fixed to the front of the first face card plate, a face sheet metal female part is fixed to the front of the second face card plate, and a middle sheet metal part is fixed to the front of the middle card plate.
[0007] The face sheet metal male part has a downward-bending first face bending part extending from the middle of its front end, and the face sheet metal female part has an upward-bending second face bending part extending from the left and right of its front end; the middle sheet metal part has an upward-bending first middle bending part extending from the left and right of its front end, and a downward-bending second middle bending part extending from the middle of its front end; the first face bending part and the first middle bending part are axially connected and intersected by a first pivot member, and the second face bending part and the second middle bending part are axially connected and intersected by a second pivot member.
[0008] Preferably, at least two intermediate plates are provided, and on the sheet metal part between the two intermediate plates, the first intermediate bend and the second intermediate bend are axially connected and a third rotating shaft is inserted.
[0009] Preferably, the intermediate card plate has a two-layer structure, and the intermediate sheet metal part is bonded between the two layers.
[0010] Preferably, the intermediate sheet metal part has a first square portion that connects to both sides of the intermediate card plate and an isosceles trapezoidal portion that extends along the rear end of the first square portion, and the first intermediate bending portion and the second intermediate bending portion both extend along the front end of the first square portion.
[0011] Preferably, the male face sheet metal part is attached to the upper surface of the first face plate, and the female face sheet metal part is attached to the lower surface of the second face plate.
[0012] Preferably, both the male and female face sheet metal parts have a second square portion and an isosceles triangular portion extending along the rear end of the second square portion.
[0013] Preferably, side strips are extended and bent on both sides of the second square portion. On the face sheet metal male part, the side strips are connected to both sides of the first face plate, and on the face sheet metal female part, the side strips are connected to both sides of the second face plate.
[0014] Preferably, the card-binding pouch structure has a transparent membrane with a square structure. The first face card plate and the second face card plate are provided with transparent membranes on the side facing the middle card plate and on both sides of the middle card plate. The first face card plate, the second face card plate and the middle card plate are bonded to three of the sides of the transparent membrane to form a card-binding pouch structure that allows a document to be inserted from the other side of the transparent membrane.
[0015] Preferably, the first, second, and third rotating shafts are provided with blocking portions at both ends.
[0016] Preferably, there are transition sections between the male face sheet metal part and the first face bending portion, between the female face sheet metal part and the second face bending portion, between the intermediate sheet metal part and the first intermediate bending portion, and between the intermediate sheet metal part and the second intermediate bending portion.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] By cleverly designing the bending sections in front of the male and female sheet metal parts of the face panel, and the intermediate sheet metal parts, this design overcomes the limitation of traditional metal ID card holder hinge structures that cannot connect multiple pages. Through the different bending sections at both ends of the intermediate sheet metal parts, in conjunction with the corresponding bending sections of the male and female sheet metal parts of the face panel, and the hinge components, a stable connection of multiple metal card plates is achieved, meeting the need for flexible stacking of pages. Furthermore, the use of metal hinge connections instead of adhesive structures avoids the problem of insufficient adhesive strength after long-term use, significantly improving the structural stability and lifespan of the ID card holder. This design retains the unique texture of metal hardware, enhancing the product's quality and aesthetics, while ensuring smooth opening and closing of each page via hinge connections, balancing practicality with users' pursuit of a high-end feel.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model in its closed state;
[0022] Figure 2 This is a utility model Figure 1 Schematic diagram of the structure at point A;
[0023] Figure 3 This is a schematic diagram of the structure of this utility model in its unfolded state;
[0024] Figure 4 This is a schematic diagram of the disassembled structure of this utility model;
[0025] Figure 5 This is a structural diagram of the first facial card plate, the facial sheet metal component, and the corresponding card bag structure in the disassembled state of this utility model;
[0026] Figure 6 This is a structural diagram of the intermediate card plate, intermediate sheet metal part and corresponding card bag structure in the disassembled state of this utility model;
[0027] Figure 7This is a structural diagram of the second facial card plate, the facial sheet metal mother piece, and the corresponding card bag structure in the disassembled state of this utility model;
[0028] Figure 8 This is a structural schematic diagram of the male sheet metal part for the face, the female sheet metal part for the face, and the intermediate sheet metal part in this utility model.
[0029] The reference numerals and names in the figure are as follows:
[0030] First faceplate 10, second faceplate 20, middle faceplate 30, card-binding bag structure 40, face sheet metal male part 50, first face bending part 51, face sheet metal female part 60, second face bending part 61, middle sheet metal part 70, first middle bending part 71, second middle bending part 72, first square part 73, isosceles trapezoidal part 74, first pivot part 81, second pivot part 82, third pivot part 83, blocking part 84, second square part 91, isosceles triangle part 92, side stop strip 93, transition section 94. Detailed Implementation
[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0032] Please see Figure 1-8 In this embodiment of the utility model, a flexible stackable card holder with a metal hinge structure includes a first face card plate 10, a second face card plate 20, and at least one middle card plate 30. The first face card plate 10, the second face card plate 20, and the middle card plate 30 are all provided with a card-binding pouch structure 40 for storing documents. A face sheet metal male part 50 is fixed to the front of the first face card plate 10, a face sheet metal female part 60 is fixed to the front of the second face card plate 20, and a middle sheet metal part 70 is fixed to the front of the middle card plate 30.
[0033] Among them, the front middle of the face sheet metal male part 50 is provided with a downwardly bent first face fold 51, and the front left and right sides of the face sheet metal female part 60 are provided with an upwardly bent second face fold 61; the front left and right sides of the middle sheet metal part 70 are provided with an upwardly bent first middle fold 71, and the front middle of the middle sheet metal part 70 is provided with a downwardly bent second middle fold 72; the first face fold 51 and the first middle fold 71 are axially connected and intersected by a first pivot 81, and the second face fold 61 and the second middle fold 72 are axially connected and intersected by a second pivot 82.
[0034] In the above technical solution, multiple pages are flexibly connected by the cooperation of the bent parts at different positions on the face sheet metal male part 50, the face sheet metal female part 60 and the intermediate sheet metal part 70 with the rotating shaft. The first face bend 51 at the center of the front end of the face sheet metal male part 50 of the first face plate 10 is axially aligned with the first intermediate bend 71 at the left and right front ends of the intermediate sheet metal part 70 of the intermediate plate 30, and then a first rotating shaft 81 is inserted. At the same time, the second face bend 61 at the left and right front ends of the face sheet metal female part 60 of the second face plate 20 is axially aligned with the second intermediate bend 72 at the center of the front end of the intermediate sheet metal part 70, and then a second rotating shaft 82 is inserted. With this structural design, the rotation characteristics of the first rotating shaft 81 and the second rotating shaft 82 enable relative rotation between the first face plate 10, the intermediate plate 30, and the second face plate 20. The intermediate plate 30 can be flexibly stacked through the above connection method. Specifically, at least two intermediate plates 30 are provided. On the intermediate sheet metal parts 70 of the two intermediate plates 30, the first intermediate bend 71 and the second intermediate bend 72 are axially aligned and a third rotating shaft 83 is inserted. This achieves a stable connection and flexible opening and closing of the multi-page metal plates.
[0035] This design overcomes the limitation of traditional metal ID card holders' hinge structure, which cannot connect multiple pages. By using the different bends at both ends of the middle sheet metal part 70 and the corresponding bends of the front sheet metal male and female parts 50 in conjunction with the hinge, a stable connection of multiple metal card plates is achieved, meeting the need for flexible stacking of pages. Furthermore, the use of metal hardware hinge connections instead of adhesive structures avoids the problem of insufficient adhesive strength after long-term use, significantly improving the structural stability and service life of the ID card holder. This design retains the unique texture of metal hardware materials, enhancing the product's quality and aesthetics, while ensuring smooth opening and closing of each page via the hinge connection, balancing practicality with users' pursuit of a high-end feel.
[0036] Please see Figure 1-2 Based on the above technical solution, it is further proposed that both ends of the first rotating shaft 81, the second rotating shaft 82, and the third rotating shaft 83 are provided with blocking portions 84; the blocking portions 84 can effectively limit the axial displacement of the first rotating shaft 81, the second rotating shaft 82, and the third rotating shaft 83, preventing them from falling off due to frequent rotation during long-term use and enhancing connection stability; please refer to Figure 8The face sheet metal male part 50 and the first face bending part 51, the face sheet metal female part 60 and the second face bending part 61, the intermediate sheet metal part 70 and the first intermediate bending part 71, and the intermediate sheet metal part 70 and the second intermediate bending part 72 are all provided with transition sections 94. The transition sections 94 can alleviate the stress concentration at the connection position between the bending part and the corresponding sheet metal part, reduce fatigue damage caused by repeated opening and closing, extend the service life of metal parts, and make the overall structure transition smoother, improving the feel and safety during use.
[0037] Please see Figure 4 and Figure 6 Based on the above technical solution, it is further proposed that the intermediate card plate 30 has a two-layer structure, with the intermediate sheet metal part 70 bonded between the two layers. The intermediate card plate 30 adopts a two-layer structure and bonds the intermediate sheet metal part 70 between them. The double-layer structure can enhance the connection stability between the intermediate sheet metal part 70 and the card plate, preventing the sheet metal part from falling off due to long-term stress. At the same time, it hides the edge of the sheet metal part, improving safety and appearance. The intermediate sheet metal part 70 has a first square part 73 that connects to both sides of the intermediate card plate 30 and an isosceles trapezoidal part 74 that extends along the rear end of the first square part 73. The first intermediate bending part 71 and the second intermediate bending part 72 both extend along the front end of the first square part 73. This ensures the structural accuracy when the bending part connects with the pivot, while the isosceles trapezoidal part 74 can adapt to the narrowing shape of the rear of the card plate. While ensuring structural strength, it reduces material redundancy and makes the overall design more in line with the space requirements for document storage, further improving the practicality and structural reliability of the metal document card holder.
[0038] Please see Figure 1 , Figure 4 and Figure 8Based on the above technical solution, it is further proposed that the male face sheet metal part 50 is adhered to the upper surface of the first face plate 10, and the female face sheet metal part 60 is adhered to the lower surface of the second face plate 20. This bonding method can improve the overall appearance and texture of the hardware, meeting the needs of users or the market. Both the male face sheet metal part 50 and the female face sheet metal part 60 have a second square portion 91 and an isosceles triangular portion 92 extending along the rear end of the second square portion 91. The male face sheet metal part 50 and the female face sheet metal part 60 can also have other structures, such as structures with hollowed-out artistic designs, to improve the overall appearance. The aesthetics of the body surface; in addition, side strips 93 are extended and bent on both sides of the second square part 91. On the face sheet metal male part 50, the side strips 93 are connected to both sides of the first face plate 10, and on the face sheet metal female part 60, the side strips 93 are connected to both sides of the second face plate 20. The side strips 93 on both sides are connected to the sides of the plate, which can not only form a protective wrap around the edge of the plate, reducing wear caused by collision and friction during use, but also further limit the relative displacement between the sheet metal part and the plate, strengthen the connection, and make the side of the plate more regular, improving the grip and overall aesthetics.
[0039] Please see Figure 3-7 Based on the above technical solution, a further proposed card-holding pocket structure 40 has a transparent membrane with a square structure (not shown in the figure). The transparent material allows users to clearly identify the document information without removing the document. The first face card plate 10 and the second face card plate 20 are provided with transparent membranes on the side facing the middle card plate 30 and on both sides of the middle card plate 30. The first face card plate 10, the second face card plate 20 and the middle card plate 30 are bonded to three sides of the transparent membrane to form a card-holding pocket structure 40 that allows documents to be inserted from the other side of the transparent membrane. This ensures that each inner side of the whole has a card-holding pocket structure 40 when closed, thereby meeting the user's need to carry multiple documents at the same time and making the storage more organized.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A flexible stackable card holder with a metal hinge structure, characterized in that, It includes a first face card plate (10), a second face card plate (20) and at least one intermediate card plate (30). Each of the first face card plate (10), the second face card plate (20) and the intermediate card plate (30) is provided with a card holder structure (40) for storing documents. A face sheet metal male part (50) is fixed to the front of the first face card plate (10), a face sheet metal female part (60) is fixed to the front of the second face card plate (20), and an intermediate sheet metal part (70) is fixed to the front of the intermediate card plate (30). Among them, the front end of the face sheet metal male part (50) is provided with a first face bending part (51) that bends downward at the middle position, and the front end of the face sheet metal female part (60) is provided with a second face bending part (61) that bends upward at the left and right positions; the front end of the middle sheet metal part (70) is provided with a first middle bending part (71) that bends upward at the left and right positions, and the front end of the middle sheet metal part (70) is provided with a second middle bending part (72) that bends downward at the middle position; the first face bending part (51) and the first middle bending part (71) are axially connected and intersected by a first pivot (81), and the second face bending part (61) and the second middle bending part (72) are axially connected and intersected by a second pivot (82).
2. The document card holder with a metal hinge structure that allows for flexible stacking of pages as described in claim 1, characterized in that, At least two intermediate plates (30) are provided. On the intermediate sheet metal part (70) of the two intermediate plates (30), the first intermediate bend (71) and the second intermediate bend (72) are axially connected and a third pivot (83) is inserted.
3. A flexible stackable page structure card holder with a metal hinge, as described in claim 1, is characterized in that... The intermediate plate (30) has a two-layer structure, and the intermediate sheet metal part (70) is bonded between the two layers.
4. A flexible stackable page structure card holder with a metal hinge, as described in claim 3, is characterized in that... The intermediate sheet metal part (70) has a first square portion (73) that is connected to both sides of the intermediate card plate (30) and an isosceles trapezoidal portion (74) extending along the rear end of the first square portion (73). The first intermediate bend portion (71) and the second intermediate bend portion (72) are both formed by extending along the front end of the first square portion (73).
5. A flexible stackable page structure card holder with a metal hinge, as described in claim 1, is characterized in that... The face sheet metal male part (50) is attached to the upper surface of the first face plate (10), and the face sheet metal female part (60) is attached to the lower surface of the second face plate (20).
6. A flexible stackable page structure ID card holder with a metal hinge, as described in claim 5, is characterized in that... Both the male part (50) and the female part (60) of the face sheet metal have a second square portion (91) and an isosceles triangular portion (92) extending along the rear end of the second square portion (91).
7. A flexible stackable page structure card holder with a metal hinge, as described in claim 6, is characterized in that... Side strips (93) extend and bend on both sides of the second square part (91). On the face sheet metal part (50), the side strips (93) are connected to both sides of the first face plate (10). On the face sheet metal part (60), the side strips (93) are connected to both sides of the second face plate (20).
8. A flexible stackable page structure ID card holder with a metal hinge, as described in claim 1, is characterized in that... The card-binding pouch structure (40) has a transparent membrane with a square structure. The first face card plate (10) and the second face card plate (20) are provided with transparent membranes on the side facing the middle card plate (30) and on both sides of the middle card plate (30). The first face card plate (10), the second face card plate (20) and the middle card plate (30) are bonded to three of the sides of the transparent membrane to form a card-binding pouch structure (40) that allows a document to be inserted from the other side of the transparent membrane.
9. A flexible stackable page structure card holder with a metal hinge, as described in claim 2, is characterized in that... The first rotating shaft (81), the second rotating shaft (82), and the third rotating shaft (83) are all provided with blocking parts (84) at both ends.
10. A flexible stackable page structure ID card holder with a metal hinge, as described in claim 1, is characterized in that... There are transition sections (94) between the face sheet metal male part (50) and the first face bending part (51), between the face sheet metal female part (60) and the second face bending part (61), between the intermediate sheet metal part (70) and the first intermediate bending part (71), and between the intermediate sheet metal part (70) and the second intermediate bending part (72).