Intelligent file cabinet for project classification management

Abstract

This invention discloses an intelligent file cabinet for project classification management, belonging to the field of storage equipment. The device includes a hoisting frame, which is fixedly connected to the indoor ceiling by expansion bolts. Four horizontal guide rails are fixedly installed on the inner side of the hoisting frame. Four sets of cross guide rods are arranged below the hinge block, and the four sets of cross guide rods are hinged and stacked together vertically. In use, the operator operates the device from the control panel. The operator selects the module category of the file to be retrieved or placed, and the corresponding solenoid valve is opened. This opens the hydraulic pipe, injecting or releasing hydraulic oil into the corresponding branch pipe. When the tension rods at both ends of the branch pipe extend and retract to the sides, the four sets of cross guide rods begin to twist, causing the sliding plates and file boxes on the side walls of the cross guide rods to unfold or fold up.

Description

Technical Field

[0001] This invention relates to the field of storage equipment, and in particular to an intelligent file cabinet for project classification management. Background Technology

[0002] With the development of industrial technology, modern storage equipment technology has become more and more sophisticated. Existing filing cabinets are made of sheet metal bending, and the inside of the filing cabinet is divided into multiple cells for storing files. However, for a small office, a filing cabinet still occupies a certain amount of space, wasting the space resources of the room.

[0003] As disclosed in patent number 201710537592.4, this intelligent file cabinet for project classification management includes a main body, a first door on one side, a second door on the other side, a card reader on the upper part of both doors, several drawers on one side of the card reader, handles on the upper part of each drawer, a safe door on one side of each drawer, a combination lock on the upper part of the safe door, and casters at the bottom of the safe door located at the bottom of the main body. This invention is primarily used for the classification management of project documents. This intelligent file cabinet for project classification management is very easy to use, provides strong protection, saves time and effort when searching for documents, and has advantages such as simple operation, reasonable design, convenient use, and low price, making it suitable for the classification management of large numbers of documents.

[0004] The device has some drawbacks. First, the file cabinet is relatively large and takes up a lot of space in a small office, affecting people's movement. Second, the file cabinet does not clearly classify files, requiring staff to manually find the cell corresponding to the file category to place or retrieve them. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an intelligent file cabinet for project classification management. When in use, staff operate the device via a control panel. They select the module category of the file they wish to retrieve or place, and the corresponding solenoid valve opens. This allows hydraulic oil to flow into or out of the corresponding branch pipe. As the tension rods at both ends of the branch pipe extend and retract, the four sets of cross guide rods twist, causing the sliding plates and file boxes on the sidewalls of the cross guide rods to unfold or fold up. Staff can then load or retrieve files into the corresponding file boxes. Once all the file boxes are retracted to the top of the room, the file cabinet achieves zero floor space, thus solving the problems mentioned in the background art.

[0006] To address the aforementioned problems, this invention provides the following technical solution: an intelligent file cabinet for project classification management, comprising a hoisting frame, which is fixedly connected to the indoor ceiling by expansion bolts. Four horizontal guide rails are fixedly installed on the inner side of the hoisting frame, and two closing sliders are slidably installed on each horizontal guide rail. A hinge block is provided at the bottom end of each closing slider, and four sets of cross guide rods are provided below the hinge block. These four sets of cross guide rods are hinged together vertically, with the top set of cross guide rods hinged to the hinge block. Each end of the cross guide rods has a through hole, through which an assembly crossbar is inserted. A sliding plate is provided on one side of each set of assembly crossbars. A torque hole is provided at the left end of the sliding plate, and a torque groove is provided at the right end. Each set of assembly crossbars is inserted into the torque hole and torque groove. A file box is provided on the side of the sliding plate opposite to the assembly crossbars. The closing sliders are connected to a closing assembly, and the file box is connected to a torsion assembly.

[0007] Furthermore, a shallow groove is provided on the top surface of the file box, and two bandages are provided on the shallow groove. The front end of the bandages is fixedly connected to the inner side wall of the shallow groove, and a hook is provided at the rear end of the shallow groove. A hook matching the hook is provided at the rear end of the bandages. A rotating component is also provided between the file box and the sliding plate.

[0008] Furthermore, the rotating assembly includes a damping rod at the rear end of the file box, and a damping hole matching the damping rod is provided on the side wall of the translation plate. The damping rod is inserted into the damping hole. The damping rod is made of hard plastic. The outer side wall of the damping rod is provided with recessed stripes, and the inner side wall of the damping hole is provided with a number of granular hemispherical chambers. The damping rod and the damping hole are filled with damping oil.

[0009] Furthermore, the closing assembly includes a branch tube in the middle of each closing slider, the branch tube is fixedly connected to the side wall of the horizontal guide rail, tension rods are slidably inserted at both ends of the branch tube, the tension rods are respectively connected to the side walls of the two closing sliders, the interior of the branch tube is filled with hydraulic oil, the four branch tubes are respectively connected to a hydraulic pipe, the four hydraulic pipes are bundled together, the hydraulic pipes are fixedly connected to the wall by a snap-fit ​​piece, and each hydraulic pipe is provided with a solenoid valve at the bottom end, and an oil pressure control mechanism is provided at the bottom end of the hydraulic pipe.

[0010] Furthermore, the hydraulic control mechanism includes a central box, the bottom ends of the hydraulic pipes are all connected to the central box, the central box is fixedly connected to the wall, a control panel and a hydraulic press are provided on the side wall of the central box, and a fluid replenishment and adjustment port is provided on the side wall of the central box.

[0011] Furthermore, the control panel contains a control program, which is divided into four modules, numbered one, two, three, and four. Each module is labeled with its file type, and each module corresponds to one of the four solenoid valves.

[0012] Furthermore, the torsion assembly includes an avoidance notch on the translation plate, a reset rod is rotatably installed in the avoidance notch, the reset rod and the damping rod are fixedly connected, the end of the reset rod is provided with a reset flange, a torsion spring is fitted on the outside of the reset rod, one end of the torsion spring is fixedly connected to the avoidance notch, the other end of the torsion spring is fixedly connected to the reset flange, and a pulling mechanism is also provided on the side wall of the file box.

[0013] Furthermore, the pulling mechanism includes a spring box at the top of the hoisting frame, with four springs arranged inside the spring box. A lifting steel wire is pulled out from each spring shaft, and the ends of the four lifting steel wires are respectively connected to the side wall of the file box. The connection point between the lifting steel wire and the side wall of the file box is offset from the axis of the damping rod by a certain distance.

[0014] Furthermore, the spring coefficients of the four springs are different, with the spring coefficient being the smallest on the spring connected to the topmost file box, and the spring coefficient increasing by a factor of two for each file box below it.

[0015] Furthermore, the following steps are included:

[0016] S1. The staff operates the equipment from the control panel. The staff selects the module category of the file to be extracted or put in. The corresponding solenoid valve of the module is opened, and hydraulic oil is injected or discharged into the corresponding branch pipe. When the tension rods at both ends of the branch pipe extend and retract to the sides, the four sets of cross guide rods begin to twist. Then, the sliding plates and file boxes on the side walls of the cross guide rods begin to unfold or fold up. The staff puts in or takes out the file in the corresponding file box. The file boxes of the device are all folded up to the top of the room, so the file cabinet does not take up any floor space.

[0017] S2. When the file box expands vertically, it pulls the lifting wire downwards. The four springs inside the spring box simultaneously apply elastic force to the lifting wire. The combined action of the lifting wire and the torsion spring causes the file box to tilt and twist. When the file box is expanded to its maximum extent, it forms an 85-degree angle with the horizontal plane, allowing staff to easily operate and exchange files.

[0018] S3. The number of straps that can be added inside the file box can be increased. By adding grid strips inside the file box, the shallow groove inside the file box can be divided into four cells, so that multiple stacks of files can be put into one file box, thereby increasing the filling capacity of the file cabinet.

[0019] The beneficial effects of this invention are:

[0020] Firstly, when using the device, the staff operates it from the control panel. They select the module category of the file they want to retrieve or insert, and the corresponding solenoid valve opens. This allows hydraulic oil to flow into or out of the corresponding branch pipe. As the tension rods at both ends of the branch pipe extend and retract, the four sets of cross guide rods twist, causing the sliding plates and file boxes on the side walls of the cross guide rods to unfold or fold up. The staff then inserts or retrieves files into the corresponding file boxes. Once all the file boxes are retracted, they reach the top of the room, achieving a zero-footprint filing cabinet effect.

[0021] Secondly, when the file box expands vertically, it pulls the lifting wire downwards. The four springs inside the spring box simultaneously exert elastic force on the lifting wire. The combined action of the lifting wire and the torsion spring causes the file box to tilt and twist. When the file box is expanded to its maximum extent, it forms an 85-degree angle with the horizontal plane, allowing staff to easily operate and exchange files.

[0022] Thirdly, the number of straps inside the file box can be increased. By adding grid strips inside the file box, the shallow groove inside the file box can be divided into four cells, so that multiple stacks of files can be put into one file box, thereby increasing the filling capacity of the file cabinet. Attached Figure Description

[0023] Figure 1 This is a frontal view of the present invention.

[0024] Figure 2 This is a schematic diagram of the invention from the side.

[0025] Figure 3 This is a schematic diagram showing a cross-section of the present invention.

[0026] Figure 4 This is a schematic diagram of the second cross-section view of the present invention.

[0027] Figure 5 This is a schematic diagram of the horizontal guide rail of the present invention.

[0028] Figure 6 This is a schematic diagram of the spring box of the present invention.

[0029] Figure 7 This is a schematic diagram of the translation plate of the present invention.

[0030] Figure 8 This is a schematic diagram of the hydraulic pipe of the present invention.

[0031] Figure 9 This is a schematic diagram of the bifurcation tube of the present invention.

[0032] Figure 10 This is a schematic diagram of the solenoid valve of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Lifting frame, 2. Horizontal guide rail, 201. Closing slider, 202. Hinge block, 203. Cross guide rod, 204. Assembly crossbar, 3. Translation plate, 301. Center column, 4. File box, 401. Bandage, 5. Branch pipe, 501. Tension bar, 6. Hydraulic pipe, 601. Solenoid valve, 7. Central box, 701. Control panel, 702. Hydraulic press, 8. Spring box, 801. Lifting wire. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] Reference Figures 1 to 10The illustrated intelligent file cabinet for project classification management includes a hanging frame 1, which is fixedly connected to the interior ceiling by expansion bolts. Four horizontal guide rails 2 are fixedly installed on the inner side of the hanging frame 1. Two closing sliders 201 are slidably installed on each horizontal guide rail 2. A hinge block 202 is provided at the bottom end of each closing slider 201. Four sets of cross guide rods 203 are arranged below the hinge block 202, and the four sets of cross guide rods 203 are hinged together vertically. The top set of cross guide rods 203 is hinged to the hinge block 202. Each end of the cross guide rods 203 has a through hole through which an assembly crossbar 204 is inserted. A sliding plate 3 is provided on one side of each set of assembly crossbars 204. A torque hole is provided at the left end of the sliding plate 3, and a torque groove is provided at the right end of the sliding plate 3. Each set of assembly crossbars 204... 4. Inserted in the torque holes and torque grooves, the sliding plate 3 is provided with a file box 4 on the side opposite to the assembly crossbar 204. The closing slider 201 is connected to the closing assembly, and the file box 4 is connected to the torsion assembly. The closing slider 201 and its bottom hinge block 202 expand or close along the trajectory of the horizontal guide rail 2. As a result, the four sets of cross guide rods 203 below the hinge block 202 are simultaneously twisted. The sliding plate 3 and the file box 4 will also expand in the vertical direction. The spacing between all the sliding plates 3 and the file box 4 is the same. The staff can take out or put in the file materials in the file box 4. When all the sliding plates 3 and the file box 4 are raised and stored, the structure of the device is retracted at the top of the room. As a result, the device does not occupy the floor area of ​​the room. It has the effect of saving space for small offices or mezzanine offices.

[0038] like Figure 1 , 7 As shown, a shallow groove is provided on the top surface of the file box 4, and two bandages 401 are provided on the shallow groove. The front end of the bandage 401 is fixedly connected to the inner side wall of the shallow groove, and a hook is provided at the rear end of the shallow groove. A hook matching the hook is provided at the rear end of the bandage 401. A rotating component is also provided between the file box 4 and the sliding plate 3. The number of bandages 401 can be increased inside the file box 4. The shallow groove inside the file box 4 is divided into four cells by adding grid strips inside the file box 4, so that multiple stacks of documents can be put into one file box 4, thereby increasing the filling capacity of the file cabinet. The file box 4, the sliding plate 3 and the cross guide rod 203 are made of lightweight plastic to reduce the load when the file box 4 and the sliding plate 3 are raised and lowered.

[0039] like Figure 1 , 7As shown, the rotating assembly includes a damping rod at the rear end of the document box 4. The side wall of the translation plate 3 has damping holes that match the damping rod. The damping rod is inserted into the damping holes. The damping rod is made of hard plastic. The outer side wall of the damping rod has recessed stripes, and the inner side wall of the damping hole has several granular hemispherical chambers. The damping rod and damping holes are filled with damping oil. When the document box 4 and the translation plate 3 expand, each document box 4 can twist. Workers can manually bend the document box 4 to adjust the angle. The damping oil in the damping rod and damping holes increases the stability of the document box 4, preventing documents from falling due to vibration.

[0040] like Figure 1 , 8 As shown in Figure 9, the closing assembly includes a branch pipe 5 in the middle of each closing slider 201. The branch pipe 5 is fixedly connected to the side wall of the horizontal guide rail 2. Tension rods 501 are slidably inserted at both ends of the branch pipe 5. The tension rods 501 are respectively connected to the side walls of the two closing sliders 201. The inside of the branch pipe 5 is filled with hydraulic oil. The four branch pipes 5 are respectively connected to a hydraulic pipe 6. The four hydraulic pipes 6 are bundled together. The hydraulic pipes 6 are fixedly connected to the wall by a snap-fit ​​piece. The bottom end of each hydraulic pipe 6 is provided with a solenoid valve 601. The bottom end of the hydraulic pipe 6 is provided with an oil pressure control mechanism. Each hydraulic pipe 6 corresponds to a branch pipe 5. When the solenoid valve 601 is opened, the corresponding hydraulic pipe 6 and branch pipe 5 start to rush in or release hydraulic oil, causing the two tension rods 501 to perform extension and retraction operations. The tension rods 501 drive the closing slider 201 and its bottom hinge block 202 to close or expand.

[0041] like Figure 1 , 8 As shown, the hydraulic control mechanism includes a central box 7, and the bottom ends of the hydraulic pipes 6 are all connected to the central box 7. The central box 7 is fixedly connected to the wall. A control panel 701 and a hydraulic press 702 are provided on the side wall of the central box 7. A fluid replenishment and adjustment port is provided on the side wall of the central box 7. The control panel 701 controls which solenoid valve 601 to start. The solenoid valve 601 corresponds to four document categories. The operator starts which solenoid valve 601 according to their needs.

[0042] like Figure 1 , 9 As shown in Figure 10, the control panel 701 is equipped with an operating program, which is divided into four modules. The four modules are numbered one, two, three, and four. The four modules are labeled with the file type. The four modules correspond to four solenoid valves 601 respectively. The office divides the files into four categories. The category of each group of vertical file boxes 4 is entered on the control panel 701.

[0043] like Figure 1 , 7As shown, the torsion assembly includes an avoidance notch on the translation plate 3, a reset rod is rotatably installed in the avoidance notch, the reset rod and the damping rod are fixedly connected, the end of the reset rod is provided with a reset flange, a torsion spring is fitted on the outside of the reset rod, one end of the torsion spring is fixedly connected to the avoidance notch, and the other end of the torsion spring is fixedly connected to the reset flange. The side wall of the document box 4 is also provided with a pulling mechanism. When the document box 4 is not affected by external force, the document box 4 is kept in a flat state by the force of the torsion spring.

[0044] like Figure 1 , 3 As shown in Figure 4, the pulling mechanism includes a spring box 8 at the top of the hoisting frame 1. Four springs are arranged inside the spring box 8, and a lifting steel wire 801 is pulled out from each spring shaft. The ends of the four lifting steel wires 801 are respectively connected to the side wall of the document box 4, and the connection point between the lifting steel wire 801 and the side wall of the document box 4 is offset from the axis of the damping rod by a certain distance. When the document box 4 expands in the vertical direction, the document box 4 will pull the lifting steel wire 801 downward. The four springs inside the spring box 8 simultaneously apply elastic force to the lifting steel wire 801. The combined action of the lifting steel wire 801 and the torsion spring causes the document box 4 to tilt and twist. When the document box 4 is expanded to its maximum extent, the document box 4 forms an 85-degree angle with the horizontal plane, and the staff can easily operate and change documents.

[0045] like Figure 1 , 3 As shown in Figure 4, the elastic coefficients of the four springs are different. The spring connected to the topmost document box 4 has the smallest elastic coefficient. The elastic coefficient of the spring connected to each lower document box 4 doubles. The lower the document box 4, the longer the corresponding lifting wire 801 is stretched. Consequently, the elastic coefficient required for the spring corresponding to this lifting wire 801 is smaller. The type of spring is selected according to the specific conditions of the office space.

[0046] Includes the following steps:

[0047] S1. The staff operates the device from the control panel 701. The staff selects the module category of the file to be extracted or put in from the control panel 701. The solenoid valve 601 corresponding to this module will be opened, and hydraulic oil will be injected into or released into the corresponding branch pipe 5. When the tension rods 501 at both ends of the branch pipe 5 extend and retract to the sides, the four sets of cross guide rods 203 will start to twist. Then the translation plate 3 on the side wall of the cross guide rod 203 and the file box 4 will start to unfold or fold up. The staff puts in or takes out the file into the corresponding file box 4. The file box 4 of the device is completely retracted to the top of the room, so the file cabinet does not occupy any space.

[0048] S2. When the file box 4 is extended vertically, it will pull the lifting wire 801 downward. The four springs inside the spring box 8 simultaneously apply elastic force to the lifting wire 801. The combined action of the lifting wire 801 and the torsion spring causes the file box 4 to tilt and twist. When the file box 4 is extended to its maximum extent, the file box 4 forms an 85-degree angle with the horizontal plane, allowing the staff to easily operate and exchange files.

[0049] S3. The number of bandages 401 can be added inside the file box 4. The grid strips inside the file box 4 are added to divide the shallow groove inside the file box 4 into four cells, so that multiple stacks of files can be put into one file box 4, thereby increasing the filling capacity of the file cabinet.

[0050] Working principle: The closing slider 201 and its bottom hinge block 202 expand or close along the trajectory of the horizontal guide rail 2. This causes the four sets of cross guide rods 203 below the hinge block 202 to twist simultaneously. The sliding plate 3 and file box 4 also expand vertically. The spacing between all the sliding plates 3 and file boxes 4 is the same, allowing staff to retrieve or place documents in the file box 4. When all the sliding plates 3 and file boxes 4 are raised and retracted, the device retracts to the top of the room, thus saving floor space for small offices or partitioned offices. The interior of the file box 4 can... The addition of bandages 401 and internal grids in file boxes 4 divides the shallow grooves inside into four cells, allowing multiple stacks of documents to be held in one file box 4, thus increasing the filing cabinet's capacity. File boxes 4, sliding plates 3, and cross guide rods 203 are made of lightweight plastic to reduce the load on file boxes 4 and sliding plates 3 during lifting and lowering. When file boxes 4 and sliding plates 3 are extended, each file box 4 can be twisted, allowing staff to manually adjust the angle. Damping rods and damping oil in the damping holes increase the stability of file boxes 4, preventing documents from falling due to vibration. Hydraulic... Each pipe 6 corresponds to a branch pipe 5. When the solenoid valve 601 is opened, the corresponding hydraulic pipe 6 and branch pipe 5 begin to flow in or out hydraulic oil, causing the two tension rods 501 to extend or retract. The tension rods 501 drive the closing slider 201 and its bottom hinge block 202 to close or expand. The control panel 701 controls which solenoid valve 601 is activated. The solenoid valve 601 corresponds to four document categories. The staff activates which solenoid valve 601 according to their needs. The office divides documents into four categories. The category of each group of vertical document boxes 4 is entered on the control panel 701. When not affected by external forces, the document boxes 4 are activated by the action of torsion springs. While maintaining a flat position, as the document box 4 expands vertically, it pulls the lifting wire 801 downwards. The four springs inside the spring box 8 simultaneously apply elastic force to the lifting wire 801. The combined action of the lifting wire 801 and the torsion spring causes the document box 4 to tilt and twist. When the document box 4 is fully expanded, it forms an 85-degree angle with the horizontal plane, allowing staff to easily operate and exchange documents. The lower the document box 4, the longer the corresponding lifting wire 801 is stretched, resulting in a smaller elasticity coefficient required for the spring corresponding to that lifting wire 801. The type of spring is selected based on the specific conditions of the office space.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An intelligent file cabinet for project classification management, characterized in that: The system includes a hoisting frame (1), which is fixedly connected to the indoor ceiling by expansion bolts. Four horizontal guide rails (2) are fixedly installed on the inner side of the hoisting frame (1). Two closing sliders (201) are slidably installed on each horizontal guide rail (2). A hinge block (202) is provided at the bottom end of each closing slider (201). Four sets of cross guide rods (203) are provided below the hinge block (202). The four sets of cross guide rods (203) are hinged together vertically. The topmost set of cross guide rods (203) is hinged to the hinge block (202). Each of the cross guide rods (203) has a through hole at its end, through which an assembly crossbar (204) is inserted. Each set of assembly crossbars (204) has a translation plate (3) on one side. The translation plate (3) has a torque hole at its left end and a torque groove at its right end. Each set of assembly crossbars (204) is inserted into the torque hole and torque groove. A file box (4) is located on the side of the translation plate (3) opposite to the assembly crossbars (204). The closing slider (201) is connected to the closing assembly, and the file box (4) is connected to the torsion assembly. The closing assembly includes each... The bifurcated tube (5) in the middle of the combined sliding block (201) is fixedly connected to the side wall of the horizontal guide rail (2). Tension rods (501) are slidably inserted at both ends of the bifurcated tube (5). The tension rods (501) are respectively connected to the side walls of the two combined sliding blocks (201). The inside of the bifurcated tube (5) is filled with hydraulic oil. The four bifurcated tubes (5) are respectively connected to a hydraulic pipe (6). The four hydraulic pipes (6) are bundled together. The hydraulic pipes (6) are fixedly connected to the wall by a snap-fit ​​piece. The bottom end of each hydraulic pipe (6) is provided with a solenoid valve (601). The bottom of the hydraulic pipe (6) The end is provided with a hydraulic control mechanism, which includes a central box (7). The bottom ends of the hydraulic pipes (6) are all connected to the central box (7). The central box (7) is fixedly connected to the wall. The side wall of the central box (7) is provided with a control panel (701) and a hydraulic press (702). The side wall of the central box (7) is provided with a fluid replenishment and adjustment port. The control panel (701) is provided with an operating program. The operating program is divided into four modules, which are numbered one, two, three, and four. The four modules are labeled with file types. The four modules correspond to four solenoid valves (601).

2. The intelligent file cabinet for project classification management according to claim 1, characterized in that: The top surface of the file box (4) is provided with a shallow groove, and two bandages (401) are provided on the shallow groove. The front end of the bandage (401) is fixedly connected to the inner side wall of the shallow groove. The rear end of the shallow groove is provided with a hook, and the rear end of the bandage (401) is provided with a hook that matches the hook. A rotating component is also provided between the file box (4) and the sliding plate (3).

3. The intelligent file cabinet for project classification management according to claim 2, characterized in that: The rotary assembly includes a damping rod at the rear end of the file box (4), and a damping hole matching the damping rod is provided on the side wall of the translation plate (3). The damping rod is inserted into the damping hole. The damping rod is made of hard plastic. The outer side wall of the damping rod is provided with recessed stripes, and the inner side wall of the damping hole is provided with several granular hemispherical chambers. The damping rod and the damping hole are filled with damping oil.

4. The intelligent file cabinet for project classification management according to claim 1, characterized in that: The torsion assembly includes a clearance notch on the translation plate (3), a reset rod is rotatably installed in the clearance notch, the reset rod and the damping rod are fixedly connected, the end of the reset rod is provided with a reset flange, a torsion spring is fitted on the outside of the reset rod, one end of the torsion spring is fixedly connected to the clearance notch, the other end of the torsion spring is fixedly connected to the reset flange, and a pulling mechanism is also provided on the side wall of the file box (4).

5. The intelligent file cabinet for project classification management according to claim 4, characterized in that: The pulling mechanism includes a spring box (8) at the top of the hoisting frame (1). Four springs are provided on the inner side of the spring box (8). A lifting wire (801) is pulled out from each spring shaft. The ends of the four lifting wires (801) are respectively connected to the side wall of the file box (4), and the connection point between the lifting wire (801) and the side wall of the file box (4) is offset from the axis of the damping rod by a certain distance.

6. The intelligent file cabinet for project classification management according to claim 5, characterized in that: The spring coefficients of the four springs are different. The spring coefficient of the spring connected to the topmost file box (4) is the smallest, and the spring coefficient of the spring connected to each lower file box (4) doubles.

7. The operating method of an intelligent file cabinet for project classification management according to any one of claims 1-6, characterized in that, Includes the following steps: S1. The staff operates the equipment from the control panel (701). The staff selects the module category of the file to be extracted or put in. The staff clicks the required module on the control panel (701). The solenoid valve (601) corresponding to this module will be opened, and hydraulic oil will be injected into the hydraulic pipe (6) and injected or discharged into the corresponding branch pipe (5). When the tension rods (501) at both ends of the branch pipe (5) extend and retract to both sides, the four sets of cross guide rods (203) will start to twist. Then the sliding plate (3) on the side wall of the cross guide rod (203) and the file box (4) will start to unfold or fold up. The staff puts in or extracts the file into the corresponding file box (4). The file box (4) of the device is completely folded up to the top of the room, so the file cabinet does not occupy any space. S2. When the file box (4) expands vertically, the file box (4) will pull the lifting wire (801) downwards. The four springs inside the spring box (8) simultaneously apply elastic force to the lifting wire (801). The combined action of the lifting wire (801) and the torsion spring causes the file box (4) to tilt and twist. When the file box (4) is expanded to its maximum extent, the file box (4) forms an 85-degree angle with the horizontal plane, allowing the staff to easily operate and exchange files. S3. The number of bandages (401) can be added inside the file box (4). The grid strips inside the file box (4) are added to separate the shallow groove inside the file box (4) into four cells, so that multiple stacks of files can be put into one file box (4), thereby increasing the filling capacity of the file cabinet.

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