Silent foldable file transfer trolley

Abstract

The utility model relates to a mute foldable file transfer trolley. At present, the file transfer trolley generally adopts a multi-layer structure and cannot be folded, and the file transfer trolley which cannot be folded can occupy more storage space when not in use. A mute foldable file transfer trolley comprises side supporting frames, a middle supporting frame and transfer plates, one end of each transfer plate is rotationally connected with the corresponding side supporting frame, the other end of each transfer plate is rotationally connected with the corresponding middle supporting frame, and the middle supporting frame, the side supporting frames and the transfer plates are of a folding structure after rotating. A hanging plate is connected to the position, close to the middle, of the middle supporting frame through a bolt assembly, locking rods are symmetrically connected to the hanging plate, and the locking rods are rotationally connected with the hanging plate; a locking bolt is connected to the lock rod fixing frame through a threaded structure, and when the lock rod is inserted into the lock rod fixing frame after rotating, the locking bolt is rotated and inserted into a lock hole of the lock rod. The file management system is applied to the field of file management.

Description

Technical Field

[0001] The utility model is applied to the field of file management, and particularly relates to a silent foldable file transfer vehicle. Background Technique

[0002] A file transfer vehicle is a special vehicle for transporting files. Its application scenarios mainly include inter-library transportation of files and file transfer between different locations within a unit, such as transferring files from one archive to another, or transporting files from the office of an organ unit to the file storage room, etc.

[0003] At present, since the file transfer vehicle generally adopts a multi-layer structure and cannot be folded, there are mainly the following disadvantages: one is that it occupies a large space. This type of file transfer vehicle is widely used in libraries and file management units. The non-foldable file transfer vehicle will also occupy a relatively large storage space when it is idle; the other is that it is inconvenient for transportation. When it is necessary to transfer the transfer vehicle to other locations for use, such as transporting it to another branch or when the vehicle needs to be allocated between sites in the case of multi-site office, the non-foldable transfer vehicle may not be efficiently placed in the transportation tool due to its volume, increasing the transportation cost and difficulty. Content of the Utility Model

[0004] The purpose of the utility model is to provide a silent foldable file transfer vehicle.

[0005] The above purpose is achieved by the following technical solutions:

[0006] A silent foldable file transfer vehicle, which comprises side support frames, a middle support frame and a transfer board. One end of the transfer board is rotatably connected to the side support frame, and the other end of the transfer board is rotatably connected to the middle support frame. After rotation among the middle support frame, the side support frames and a group of transfer boards, it forms a foldable structure. Among them, two transfer boards on the same horizontal plane are symmetrically arranged, and the two transfer boards on the same horizontal plane form a V-shaped structure after being unfolded;

[0007] A suspension plate is fixedly connected to the middle support frame near the middle position through a bolt assembly, and locking rods are symmetrically connected to the suspension plate. The locking rods are rotatably connected to the suspension plate;

[0008] An L-shaped locking rod fixing frame is installed on the side support frame. A locking bolt is connected to the locking rod fixing frame through a threaded structure. When the locking rod rotates and is inserted into the locking rod fixing frame, the locking bolt is rotated, and the locking bolt is inserted into the locking hole of the locking rod to connect the middle support frame and the side support frame through the locking rod.

[0009] For the silent foldable file transfer vehicle, a baffle is installed on the frame body on any one side of the side support frame, and a limiting rod is arranged on the side support frame connected to the baffle. The limiting rod is rotatably connected to the side support frame.

[0010] For the silent foldable file transport cart described above, a positioning plate is connected to the bottom of the middle support frame. When the limiting rod rotates to be parallel to the horizontal plane, at this time, the bottom surface of the positioning plate is in contact with the limiting rod to limit the middle support frame.

[0011] For the silent foldable file transport cart described above, an upper hanging ring is transversely connected to the side support frame, a lower hanging ring is longitudinally connected to the limiting rod, and the upper hanging ring and the lower hanging ring are connected by a chain.

[0012] For the silent foldable file transport cart described above, a push rod is connected to two side support frames on the same side.

[0013] For the silent foldable file transport cart described above, universal wheels are connected to the bottom of the side support frame.

[0014] The beneficial effects achieved by the present utility model are as follows:

[0015] The foldable function of the present utility model increases the portability of the cart and the convenience of storage. When not in use, the cart can be folded up and leaned against the wall or placed in the storage room to save space. This kind of transport cart generally has multiple layers of storage racks and can place a relatively large number of file boxes, folders, etc. Its material is usually metal or high-strength plastic to ensure the stable structure of the cart and be able to bear a certain weight of files. The frame is designed as a rectangle, divided into three layers up and down, and there is a certain interval between each layer to facilitate placing files of different sizes.

[0016] After the transport cart of the present utility model is folded, a V-shaped structure will be formed between two transport plates on the same horizontal plane, which can facilitate the loading and unloading of files. Among them, each transport plate is an inclined surface structure, and through this inclined surface structure, files can be better fixed. The inclined surface can make the files form a certain angle when stacked in the cart, relying on and squeezing each other, thereby reducing the shaking and displacement of the files during transportation and reducing the risk of file damage.

[0017] The universal wheels of the present utility model are selected as silent rubber wheels with a moderate diameter to ensure that no excessive noise will be generated when pushing the transport cart, and at the same time, smooth driving can be guaranteed. The wheels are equipped with a braking device to fix the transport cart when parked to prevent it from sliding.

[0018] The foldable file transport cart of the present utility model is both practical and convenient to carry and store, and can meet the file handling needs in different occasions. Description of the Drawings

[0019] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0020] Attached Figure 1 is a structural schematic diagram of the present utility model.

[0021] Attached Figure 2 is the attached Figure 1 structural schematic diagram of the transfer cart after folding.

[0022] Attached Figure 3 is the attached Figure 1 top view.

[0023] Attached Figure 4 is a structural schematic diagram of the middle support frame.

[0024] Attached Figure 5 is the attached Figure 1 partial enlarged view of part A.

[0025] Attached Figure 6 is a connection schematic diagram of the lock rod fixing bracket and the lock rod.

[0026] Attached Figure 7 is a structural schematic diagram of the lock rod.

[0027] In the figure: 1, side support frame; 2, middle support frame; 3, transfer plate; 4, hanging plate; 5, lock rod; 6, lock rod fixing bracket; 7, locking bolt; 8, lock hole; 9, baffle; 10, limiting rod; 11, positioning plate; 12, upper hanging ring; 13, lower hanging ring; 14, chain; 15, push rod; 16, universal wheel. Specific embodiments

[0028] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not intended to limit the present utility model.

[0029] Embodiment 1:

[0030] A silent foldable file transfer cart, which comprises a side support frame 1, a middle support frame 2 and a transfer plate 3. One end of the transfer plate is rotatably connected to the side support frame, and the other end of the transfer plate is rotatably connected to the middle support frame. After rotation among the middle support frame, the side support frame and a group of transfer plates, it forms a folding structure. Among them, two transfer plates on the same horizontal plane are symmetrically arranged, and the two transfer plates on the same horizontal plane form a V-shaped structure after being unfolded;

[0031] A hanging plate 4 is fixedly connected to the middle support frame near the middle position through a bolt assembly, and lock rods 5 are symmetrically connected to the hanging plate. The lock rods are rotatably connected to the hanging plate;

[0032] A lock rod fixing bracket 6 with an inverted L-shaped structure is installed on the side support bracket. A locking bolt 7 is connected to the lock rod fixing bracket through a threaded structure. When the lock rod rotates and is inserted into the lock rod fixing bracket, the locking bolt is rotated, and the locking bolt is inserted into the lock hole 8 of the lock rod, and the middle support bracket and the side support bracket are connected through the lock rod.

[0033] Embodiment 2:

[0034] For the silent foldable file transport vehicle according to Embodiment 1, a baffle 9 is installed on the frame of any one side of the side support bracket. A limiting rod 10 is provided on the side support bracket connected to the baffle, and the limiting rod is rotatably connected to the side support bracket.

[0035] The baffle 9 is of a rectangular plate structure, and the baffle is fixed on the side support bracket by welding. By providing the baffle, when the limiting rod rotates, the limiting rod can always be in a parallel structure with the horizontal plane.

[0036] Embodiment 3:

[0037] For the silent foldable file transport vehicle according to Embodiment 1 or 2, a positioning plate 11 is connected to the bottom of the middle support bracket. When the limiting rod rotates to be parallel to the horizontal plane, at this time, the bottom surface of the positioning plate is in contact with the limiting rod to limit the middle support bracket.

[0038] The positioning plate is of a rectangular plate structure, and the positioning plate is vertically fixed to the bottom of the middle support bracket by welding. By providing the positioning plate at the bottom of the middle support bracket, when the middle support bracket moves vertically downward, the positioning plate at the bottom of the middle support bracket is in contact with the limiting rod, thereby preventing the middle support bracket from continuing to move vertically downward.

[0039] Embodiment 4:

[0040] For the silent foldable file transport vehicle according to Embodiment 1 or 2 or 3, an upper hanging ring 12 is horizontally connected to the side support bracket, a lower hanging ring 13 is longitudinally connected to the limiting rod, and the upper hanging ring and the lower hanging ring are connected by a chain 14.

[0041] The upper hanging ring and the lower hanging ring have the same structure. Among them, the upper hanging ring and the lower hanging ring are both fixed by welding. By providing the upper hanging ring and the lower hanging ring to connect the chain, by providing the chain, the limiting rod can be pulled, thereby increasing the stability of the limiting rod.

[0042] Embodiment 5:

[0043] For the silent foldable file transport vehicle according to Embodiment 1 or 2 or 3 or 4, a push rod 15 is connected to the two side support brackets on the same side.

[0044] The push rod has a U-shaped structure. The rod faces on both sides of the push rod are fixed to the side support frames on both sides by bolts, and the transfer cart is pushed by the push rod.

[0045] Embodiment 6:

[0046] For the silent foldable file transfer cart according to Embodiment 1 or 2 or 3 or 4 or 5, universal wheels 16 are connected to the bottom of the side support frames.

[0047] The universal wheels are made of special wheel materials and designs, such as using wheels made of rubber or polyurethane, so that noise can be reduced during the pushing process, and it is suitable for use in places that require a quiet environment, such as offices, libraries, and archives.

[0048] Working principle:

[0049] The transfer cart has a foldable structure. When folding and unfolding the transfer cart, first rotate the limit rod, and the baffle on the side support frame supports the limit rod, so that the limit rod is parallel to the horizontal plane. The chains on the limit rod and the side support frame are in a taut state. When pushing the middle support frame vertically downward, the middle support frame unfolds the side support frames to both sides through a set of rotating plates on both sides. When the positioning plate at the bottom of the middle support frame contacts the limit rod, the middle support frame is limited. At this time, a set of transfer plates between the middle support frame and the side support frames are arranged in a V-shaped structure, and the hanging plate on the middle support frame is close to the same horizontal plane as the lock rod fixing frame on the side support frame. Rotate the lock rod on the hanging plate and insert the lock rod into the lock rod fixing frame. When the lock rod is close to being parallel to the horizontal plane, the lock hole on the lock rod is close to coinciding with the threaded hole on the lock rod fixing frame. Then rotate the locking bolt on the lock rod fixing frame, and the locking bolt passes through the lock hole on the lock rod to fix the lock rod in the lock rod fixing frame to prevent the side support frame from moving, ensuring that a set of transfer plates are in a V-shaped structure, completing the folding of the file transfer cart. Place the files on the transfer plates with an inclined surface structure to transfer the baffles.

Claims

1. A silent foldable file transfer cart, which comprises side support frames, a middle support frame and a transfer board. One end of the transfer board is rotatably connected to the side support frame, and the other end of the transfer board is rotatably connected to the middle support frame. It is characterized in that, The middle support frame, the side support frames and a set of transfer plates form a folding structure after rotation. Among them, two transfer plates on the same horizontal plane are symmetrically arranged, and the two transfer plates on the same horizontal plane form a V-shaped structure after being unfolded; A suspension plate is fixedly connected to the middle support frame near the middle position through a bolt assembly. The suspension plate is symmetrically connected with locking rods, and the locking rods are rotatably connected to the suspension plate; A locking rod fixing frame with an inverted L-shaped structure is installed on the side support frame. A locking bolt is connected to the locking rod fixing frame through a threaded structure. When the locking rod is rotated and inserted into the locking rod fixing frame, the locking bolt is rotated, and the locking bolt is inserted into the locking hole of the locking rod, and the middle support frame and the side support frame are connected through the locking rod.

2. The silent foldable file transporter according to claim 1, wherein, A baffle is installed on the frame body on any one side of the side support frame. A limiting rod is provided on the side support frame connected to the baffle, and the limiting rod is rotatably connected to the side support frame.

3. The silent foldable file transfer cart according to claim 1, wherein A positioning plate is connected to the bottom of the middle support frame. When the limiting rod is rotated to be parallel to the horizontal plane, at this time, the bottom surface of the positioning plate is in contact with the limiting rod to limit the middle support frame.

4. The silent foldable file transfer cart according to claim 1, wherein The side support frame is horizontally connected with an upper hanging ring, and the limiting rod is longitudinally connected with a lower hanging ring. The upper hanging ring and the lower hanging ring are connected by a chain.

5. The silent foldable file transfer cart according to claim 1, characterized in that, Push rods are connected to the two side support frames on the same side.

6. The silent foldable file transporter according to claim 1, wherein The bottom of the side support frame is connected with universal wheels.

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