Foldable file storage rack

Abstract

The utility model discloses a file storage rack capable of being folded and unfolded, which comprises at least one folding component and at least two file brackets, the file brackets are sequentially arranged from top to bottom, and the adjacent file brackets are connected through the folding component; the folding assembly comprises at least one arc-shaped swing piece, the upper end of the arc-shaped swing piece is rotationally connected with the file bracket located on the upper portion, and the lower end of the arc-shaped swing piece is rotationally connected with the file bracket located on the lower portion. The folding assembly further comprises a limiting piece used for limiting the swing amplitude of the arc-shaped swing piece. The limiting piece is arranged on the rear side of the lower end of the arc-shaped swing piece. When the file bracket located on the upper portion is in an unfolded state, the included angle between the tangent line of the upper end of the arc-shaped swing piece and the file bracket bottom plate is smaller than or equal to 90 degrees. The file storage rack can be folded when files do not need to be used, the space utilization rate is high, the bearing capacity is sufficient and the stability is high when the file storage rack is unfolded, the opening and closing times can be effectively increased, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to folders, and more particularly to a foldable and unfoldable file storage rack. Background Technology

[0002] In office, study, and daily document management scenarios, the space utilization and portability of document storage tools are always the core needs of users. Traditional fixed document storage racks (such as multi-drawer cabinets and upright folders) have a certain storage capacity, but because the frame is fixed and cannot be folded, they usually have the problems of high space occupation and poor portability when not in use.

[0003] Currently, some storage racks still adopt a folding structure to solve space problems. Their structure is usually the same as the retractable shelf assembly used in patent CN119587182A. Although this type of storage rack can save space when not in use by folding and unfolding, its folding linkage is generally a straight linkage. When the upper storage layer is loaded with more and heavier documents, the connection between the linkage and the storage layer has to bear the entire weight of the storage layer when unfolded. Therefore, the linkage is prone to breakage, resulting in insufficient stability, limited number of opening and closing times, and thus a shorter service life for folding storage racks. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a foldable and unfoldable file storage rack. This file storage rack can be folded when the files are not in use, which has a high space utilization rate. When unfolded, it has sufficient load-bearing capacity and strong stability, which can effectively increase the number of times it can be opened and closed and extend its service life.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] A foldable and unfoldable document holder includes at least one folding assembly and at least two document trays arranged sequentially from top to bottom, with adjacent document trays connected by the folding assembly. The folding assembly includes at least one arc-shaped swing member, the upper end of which is rotatably connected to the upper document tray, and the lower end of which is rotatably connected to the lower document tray. The folding assembly also includes a limiting member for restricting the swing amplitude of the arc-shaped swing member, located at the rear of the lower end of the arc-shaped swing member. When the upper document tray is unfolded, the angle between the tangent at the upper end of the arc-shaped swing member and the bottom plate of the document tray is less than or equal to 90°.

[0007] When using the above-mentioned document organizer, various documents can be placed into each document holder. When a document needs to be retrieved or placed, the upper document holder can be swung backward and upward. At this time, the arc-shaped swinging component swings backward and upward around the lower connection point until the limiting component stops the arc-shaped swinging component from swinging further. At this time, the upper document holder is in the unfolded state, which can create a greater gap with the lower document holder. At the same time, when in the unfolded state, because the arc-shaped swinging component is arc-shaped, and the angle between the tangent of the upper end of the arc-shaped swinging component and the bottom plate of the document holder is no greater than 9 degrees. At 0°, the weight of the upper document holder is not entirely borne by the upper connection point of the curved swing component, but is distributed to the middle of the curved swing component. Combined with the contact point between the curved swing component and the limiting component, the pressure is distributed by the entire curved swing component, making it more stable when unfolded. The upper document holder can also hold heavier documents. When documents are no longer needed or after use, the upper document holder can be pressed down again. At this time, the curved swing component swings forward and downward around the lower connection point, causing the upper document holder to fold back onto the lower document holder. This document organizer can be folded when documents are not in use, maximizing space utilization. Furthermore, when unfolded, it has sufficient load-bearing capacity and strong stability, effectively increasing the number of opening and closing cycles and extending its service life.

[0008] In a preferred embodiment, there are multiple arc-shaped swinging components, and the ends of each arc-shaped swinging component are rotatably connected to the left and right side panels of the document holder. The number of arc-shaped swinging components on the left and right sides of the document holder are the same and their positions correspond to each other.

[0009] In a further preferred embodiment, at least one set of mounting holes is provided on each of the left and right side panels of the document holder. Each set of mounting holes includes a first mounting hole and a second mounting hole, which are arranged along the length of the document holder side panel. The upper end of the arc-shaped swing member is rotatably mounted in the first mounting hole located in the upper document holder, and the lower end of the arc-shaped swing member is rotatably mounted in the second mounting hole located in the lower document holder. With this configuration, upper or lower document holders can be added to each document holder at any time.

[0010] In a further preferred embodiment, the upper and lower ends of the arc-shaped swing member are respectively provided with cylindrical plugs that match the first mounting hole and the second mounting hole. The end of the cylindrical plug is provided with a limiting flange along its circumference, and a U-shaped groove is opened on the end face of the cylindrical plug. During installation, only a slight force is needed to insert the arc-shaped swing member into the corresponding mounting hole through the cylindrical plug, and it can rotate around the mounting hole.

[0011] In a further preferred embodiment, at least one outwardly protruding limiting protrusion is provided on each of the left and right side panels of the document holder. These limiting protrusions constitute the limiting components. The number of limiting protrusions is the same as the number of mounting holes, and they correspond one-to-one. The limiting protrusions are positioned behind the corresponding second mounting hole along the length of the document holder side panel. When the arc-shaped swinging component swings to a certain amplitude, the limiting protrusions can block the arc-shaped swinging component.

[0012] In a preferred embodiment, the angle between the tangent at the upper end of the arc-shaped swing member and the base plate of the document holder is 75°-90°.

[0013] In a preferred embodiment, the document holder includes a base plate, a left wall plate, a right wall plate, and a rear wall plate. The lower edge of the left wall plate is connected to the left edge of the base plate, the lower edge of the right wall plate is connected to the right edge of the base plate, and the lower edge of the rear wall plate is connected to the rear edge of the base plate.

[0014] In a further preferred embodiment, the front end of the base plate extends beyond the front ends of the left and right side panels, and the front sides of the left and right side panels are inclined surfaces that slope backward from bottom to top. This structure facilitates the handling of documents.

[0015] In a further preferred embodiment, the bottom wall surface of the base plate is provided with a downwardly extending annular protrusion, and the area enclosed by the upper edges of the left wall plate, right wall plate, and rear wall plate matches the shape of the annular protrusion. When in the folded state, the upper document holder can be stacked on the lower document holder, and the annular protrusion engages with the inner side of the wall plate of the lower document holder, effectively improving the stability of the document holder in the folded state.

[0016] The beneficial effects of this utility model are as follows: this file storage rack can be folded when the files are not in use, which makes high space utilization. When unfolded, it has sufficient load-bearing capacity and strong stability, which can effectively increase the number of times it can be opened and closed and extend its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the file storage rack in an embodiment of the present utility model;

[0018] Figure 2 This is a side view of the document storage rack in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the arc-shaped swing component in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the bottom of the document holder in an embodiment of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 1-4 The foldable and unfoldable document holder shown includes a folding assembly 1 and two document trays 2, which are arranged sequentially from top to bottom. The folding assembly 1 includes multiple arc-shaped swing members 101, each of which is rotatably connected to the left and right side panels of the document tray 2. The number of arc-shaped swing members 101 on the left and right sides of the document tray 2 is the same and their positions correspond. The upper end of the arc-shaped swing member 101 is rotatably connected to the upper document tray 2, and the lower end of the arc-shaped swing member 101 is rotatably connected to the lower document tray 2. The folding assembly 1 also includes a limiting member 102 for limiting the swing amplitude of the arc-shaped swing member 101, which is located on the rear side of the lower end of the arc-shaped swing member 101. When the upper document tray 2 is in the unfolded state, the angle between the tangent of the upper end of the arc-shaped swing member 101 and the bottom plate 202 of the document tray 2 is 90°.

[0023] When in use, the aforementioned document storage rack allows various documents to be placed into each document holder 2. When a document needs to be retrieved or placed, the upper document holder 2 can be swung backward and upward. At this time, the arc-shaped swing member 101 swings backward and upward around its lower connection point until the limiting member 102 restricts its further swing. At this point, the upper document holder 2 is in an unfolded state, creating a greater distance between it and the lower document holder 2. Simultaneously, in the unfolded state, because the arc-shaped swing member 101 is arc-shaped, and the angle between the tangent at the upper end of the arc-shaped swing member 101 and the base plate 202 of the document holder 2 is 90 degrees... The weight of the upper document holder 2 is not entirely borne by the upper connection point of the arc-shaped swing member 101, but is distributed to the middle position of the arc-shaped swing member 101. Combined with the contact position between the arc-shaped swing member 101 and the limiting member 102, the pressure is distributed by the entire arc-shaped swing member 101, making it more stable when unfolded. The upper document holder 2 can also hold heavier documents. When documents are no longer needed or after use, the upper document holder 2 can be pressed down again. At this time, the arc-shaped swing member 101 swings forward and downward around the lower connection point, causing the upper document holder 2 to be stacked back on the lower document holder 2. This document organizer can be folded when documents are not in use, has high space utilization, and has sufficient load-bearing capacity and strong stability when unfolded, effectively increasing the number of opening and closing cycles and extending its service life.

[0024] Multiple mounting hole groups 201 are respectively opened on the left and right side panels of the document holder 2. The mounting hole group 201 includes a first mounting hole 2011 and a second mounting hole 2012, which are arranged along the length of the document holder 2 side panel. The upper end of the arc-shaped swing member 101 is rotatably installed in the first mounting hole 2011 located in the upper document holder 2, and the lower end of the arc-shaped swing member 101 is rotatably installed in the second mounting hole 2012 located in the lower document holder 2. With this arrangement, upper or lower document holders 2 can be added at any time.

[0025] The upper and lower ends of the arc-shaped swing member 101 are respectively provided with cylindrical plugs 1011 that match the first mounting hole 2011 and the second mounting hole 2012. The end of the cylindrical plug 1011 is provided with a limiting flange 1012 along its circumference, and a U-shaped groove 1013 is opened on the end face of the cylindrical plug 1011. During installation, only a little force is needed to insert the arc-shaped swing member 101 into the corresponding mounting hole through the cylindrical plug 1011, and it can rotate around the mounting hole.

[0026] The left and right side panels of the document holder 2 are each provided with a plurality of outwardly protruding limiting protrusions, which constitute limiting components 102. The number of limiting protrusions is the same as that of the mounting hole group 201 and they correspond one-to-one. The limiting protrusions are arranged behind the corresponding second mounting hole 2012 along the length direction of the document holder 2 side panel. When the arc-shaped swinging component 101 swings to a certain amplitude, the limiting protrusions can block the arc-shaped swinging component 101.

[0027] The document holder 2 includes a base plate 202, a left wall plate 203, a right wall plate 204, and a rear wall plate 205. The lower edge of the left wall plate 203 is connected to the left edge of the base plate 202, the lower edge of the right wall plate 204 is connected to the right edge of the base plate 202, and the lower edge of the rear wall plate 205 is connected to the rear edge of the base plate 202.

[0028] The front end of the base plate 202 extends beyond the front ends of the left wall plate 203 and the right wall plate 204. The front sides of the left wall plate 203 and the right wall plate 204 are inclined surfaces that slope backward from bottom to top. This structure makes it easier to pick up and put down documents.

[0029] The bottom wall of the base plate 202 has a downwardly extending annular protrusion 2021. The area enclosed by the upper edges of the left wall plate 203, right wall plate 204, and rear wall plate 205 matches the shape of the annular protrusion 2021. When in the folded state, the upper document holder 2 can be stacked on the lower document holder 2, and the annular protrusion 2021 is engaged with the inner side of the wall plate of the lower document holder 2, effectively improving the stability of the document holder 2 in the folded state.

Claims

1. A foldable and unfoldable document holder, comprising at least one folding component and at least two document trays, the document trays being arranged sequentially from top to bottom, and adjacent document trays being connected by the folding component; characterized in that: The folding assembly includes at least one arc-shaped swing member, the upper end of which is rotatably connected to the upper document holder, and the lower end of which is rotatably connected to the lower document holder. The folding assembly also includes a limiting member for limiting the swing amplitude of the arc-shaped swing member, which is located on the rear side of the lower end of the arc-shaped swing member. When the upper document holder is in the unfolded state, the angle between the tangent at the upper end of the arc-shaped swing member and the bottom plate of the document holder is less than or equal to 90°.

2. The foldable and unfoldable document organizer as described in claim 1, characterized in that: There are multiple arc-shaped swinging components, and the ends of each arc-shaped swinging component are rotatably connected to the left and right side panels of the document holder. The number of arc-shaped swinging components on the left and right sides of the document holder is the same and their positions correspond to each other.

3. A foldable and unfoldable document organizer as described in claim 2, characterized in that: The document holder has at least one set of mounting holes on each of its left and right side panels. The set of mounting holes includes a first mounting hole and a second mounting hole, which are arranged along the length of the document holder side panel. The upper end of the arc-shaped swing member is rotatably installed in the first mounting hole of the upper document holder, and the lower end of the arc-shaped swing member is rotatably installed in the second mounting hole of the lower document holder.

4. A foldable and unfoldable document organizer as described in claim 3, characterized in that: The upper and lower ends of the arc-shaped swing component are respectively provided with cylindrical plugs that match the first mounting hole and the second mounting hole. The end of the cylindrical plug is provided with a limiting flange along its circumference, and a U-shaped groove is opened on the end face of the cylindrical plug.

5. A foldable and unfoldable document organizer as described in claim 3, characterized in that: The upper and lower ends of the arc-shaped swing component are respectively provided with cylindrical plugs that match the first mounting hole and the second mounting hole. The end of the cylindrical plug is provided with a limiting flange along its circumference, and a U-shaped groove is opened on the end face of the cylindrical plug.

6. A foldable and unfoldable document organizer as described in claim 1, characterized in that: The angle between the tangent at the upper end of the arc-shaped swinging component and the bottom plate of the document holder is 75°-90°.

7. A foldable and unfoldable document organizer as described in claim 1, characterized in that: The document holder includes a base plate, a left wall plate, a right wall plate, and a rear wall plate. The lower edge of the left wall plate is connected to the left edge of the base plate, the lower edge of the right wall plate is connected to the right edge of the base plate, and the lower edge of the rear wall plate is connected to the rear edge of the base plate.

8. A foldable and unfoldable document organizer as described in claim 7, characterized in that: The front end of the base plate extends beyond the front ends of the left and right wall panels, and the front sides of the left and right wall panels are inclined surfaces that slope backward from bottom to top.

9. A foldable and unfoldable document organizer as described in claim 7, characterized in that: The bottom wall of the base plate is provided with a downwardly extending annular protrusion, and the area enclosed by the upper edges of the left wall plate, right wall plate and rear wall plate matches the shape of the annular protrusion.

Images