Library book returning trolley

Abstract

The utility model discloses a library book returning trolley which comprises a trolley frame, a handrail is arranged on one side of the trolley frame, the trolley frame is in a U shape, a plurality of containing layers are arranged in the trolley frame from top to bottom, each containing layer comprises a containing inclined plate, a rear baffle and a partition plate, a computer is arranged on one side of the top of the trolley frame, and a telescopic ladder stand is rotationally arranged on one side of the trolley frame. The crawling ladder comprises a main crawling ladder body and an auxiliary crawling ladder body, and a containing box groove is formed in each containing layer; the telescopic ladder stand is rotatably arranged on one side of the frame, so that when the ladder stand is not used, the ladder stand can be retracted and rotated to be close to the frame, and when the ladder stand is used, the ladder stand can be extended and then rotated to the outer side, and the bottom of the ladder stand is close to the ground; compared with a mode of arranging a movable plate in the prior art, the arrangement of the crawling ladder enables the workers to climb layer by layer conveniently, stability is improved, and falling of the workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of book return cart technology, and in particular relates to a library book return cart. Background Technology

[0002] In library management, library book return carts are frequently used for organizing and categorizing books.

[0003] Regarding library book return carts, a search reveals that a utility model patent with Chinese patent publication number CN211242189U discloses a library-use categorized book return cart, such as... Figure 1 As shown, it mainly includes two vertical plates a, with a handrail g on one side of each vertical plate a. Multiple horizontal placement plates b are connected between the two vertical plates a. Multiple casters c with foot brakes are located at the bottom of each vertical plate a. One of the vertical plates a has a placement slot d, and a movable plate f is connected to the slot d by two lead screws e. When returning a book, if a person's height is insufficient to return the book to the shelf, two rotating rings are simultaneously turned in the same direction, causing the lead screw to rotate. The rotation of the lead screw drives a movable block threaded to it to move along the lead screw, thereby adjusting the height of the movable plate. A person standing on the movable plate can then place the book on the shelf.

[0004] In practice, existing library book return carts with similar technical solutions have been found to have areas for improvement: when the height of the movable platform is adjusted to a high level, it is inconvenient for staff to step directly onto the platform from the ground, which can easily lead to falls or instability, making them inconvenient to use. Utility Model Content

[0005] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a library book return cart that solves the problem that when the height of the movable platform is adjusted to a high level, it is inconvenient for staff to step directly onto the movable platform from the ground, which may easily lead to falls or instability and make it inconvenient to use.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a library book return cart, including a frame, a handrail on one side of the frame, and multiple foot-brake casters at the bottom of the frame. The frame is U-shaped, and multiple storage layers are provided inside the frame from top to bottom. Each storage layer includes a tilting plate for placing books. The tilting plate is gradually tilted downwards from front to back. A rear baffle is provided on the rear side of the tilting plate. Multiple partitions are provided on each tilting plate. A computer is provided on one side of the top of the frame. A retractable ladder is rotatably provided on one side of the frame. The ladder includes a main ladder and a secondary ladder. The upper end of the main ladder is hinged to one side of the frame, and the secondary ladder is retractably provided at the bottom of the main ladder. Multiple removable storage slots for placing books are provided on each storage layer.

[0007] As a further improvement of this utility model, the placement box slot is placed on the placement layer, each placement box slot includes a bottom plate, a vertical plate is fixed to the rear side of the bottom plate, and side baffles are provided on both sides of the vertical plate.

[0008] As a further improvement of this utility model, the auxiliary ladder is detachably mounted on the main ladder and locked in place by locking bolts.

[0009] As a further improvement of this utility model, one side of the frame is provided with a table that can be unfolded into a horizontal position. One side of the table is rotatably hinged to the frame, and the frame is provided with a support frame that can support the table in a horizontal position.

[0010] As a further improvement of this utility model, the support frame is slidably connected to the vehicle frame via a slider.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. By rotating a retractable ladder on one side of the frame, the ladder can be retracted and rotated close to the frame when not in use. When in use, the ladder can be extended, rotated to the outside, and its bottom brought close to the ground. Workers can then climb the ladder to place books on higher shelves. Compared with the existing technology of setting movable boards, the ladder design makes it easier for workers to climb layer by layer, improves stability, and reduces the risk of workers falling.

[0013] In addition, by setting the placement layer as a structure with a tilting plate and a back panel, and with the tilting plate gradually tilting downwards from front to back, the books tilt backwards as a whole after they are placed, making it easier to place and find the books and reducing the number of books falling.

[0014] The shelf has multiple removable slots, so when placing books, you can place the slots on the shelf and then place the books into the slots. When placing books on the bookshelf, you can easily remove the slots as a whole, place them on the upper shelf, and then take out the books one by one and place them on the bookshelf.

[0015] 2. By providing an unfoldable table on one side of the frame, the table can be unfolded when needed for temporary placement of books. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the existing technology;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a structural diagram of the table on the frame;

[0020] Figure 4 for Figure 3 The right-hand view;

[0021] In the diagram: 1. Frame; 2. Handrail; 3. Foot brake caster; 4. Storage layer; 41. Storage tilt plate; 42. Rear panel; 43. Partition; 5. Computer; 6. Ladder; 61. Main ladder; 62. Secondary ladder; 63. Locking bolt; 7. Storage box slot; 71. Base plate; 72. Upright plate; 73. Side panel; 8. Table; 81. Support frame; 82. Slider; 83. Slide. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 2-4 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0023] For ease of description, such as Figure 2 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0024] This utility model discloses a library book return cart. (Refer to...) Figure 2A library book return cart includes a frame 1, a handrail 2 on one side of the frame 1, and multiple foot-brake casters 3 at the bottom of the frame 1. The frame 1 is U-shaped and has multiple storage layers 4 from top to bottom inside the frame 1. Each storage layer 4 includes a tilting plate 41 for placing books. The tilting plate 41 is tilted downwards from front to back. A rear baffle 42 is provided on the rear side of the tilting plate 41. Multiple partitions 43 are provided on each tilting plate 41. A computer 5 is provided on the top side of the frame 1 for convenient book return registration. A retractable ladder 6 is rotatably provided on one side of the frame 1. The ladder 6 includes a main ladder 61 and a secondary ladder 62. The upper end of the main ladder 61 is hinged to one side of the frame 1. The secondary ladder 62 is retractably provided at the bottom of the main ladder 61. Specifically, the secondary ladder 62 is pluggably provided on the main ladder 61 and locked by locking bolts 63.

[0025] like Figure 2 As shown, each shelf 4 has multiple removable book slots 7. These slots can be placed between adjacent shelves 43. Specifically, each book slot 7 includes a base plate 71 with a vertical plate 72 fixed to its rear side. Side baffles 73 are located on both sides of the vertical plate 72. The base plate 71 is attached to the inclined shelf 41, and the vertical plate 72 is attached to the rear baffle 42 of the shelf 4. Because multiple removable book slots 7 are provided on the shelf 4, for convenience, the book slots 7 can be removed entirely and placed on the upper shelf before the books are individually removed and placed on the shelf.

[0026] In addition, such as Figure 3 and Figure 4 As shown, one side of the frame 1 is provided with a tabletop 8 that can be unfolded into a horizontal position. The tabletop 8 is rotatably hinged to the frame 1. The frame 1 is provided with a support frame 81 that can support the tabletop 8 in a horizontal position. Specifically, the frame 1 has a sliding groove 83, and the support frame 81 is slidably connected to the frame 1 via a slider 82. When the tabletop 8 is lowered, the support frame 81 can be slid to one side of the tabletop 8 to avoid obstructing it. When using the tabletop 8, it can be unfolded, and the support frame 81 can be slid under the tabletop 8 to support it, facilitating temporary placement of books.

[0027] This invention features a retractable ladder 6 that rotates to one side of the frame 1. When not in use, the ladder 6 can be retracted and rotated close to the frame 1. When in use, the ladder 6 can be extended, rotated to the outside, and its bottom brought close to the ground. Workers can then climb the ladder 6 to place books on higher shelves. Compared to the existing method of using movable platforms, the ladder 6 facilitates workers climbing layer by layer, improves stability, and reduces the risk of falls.

[0028] In addition, by setting the placement layer 4 to a structure that includes a tilting plate 41 and a rear baffle 42, the tilting plate 41 is gradually tilted downwards from front to back. Therefore, after the book is placed, the book tilts backwards as a whole, which facilitates the placement and retrieval of the book and reduces the risk of the book falling.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A library book cart comprising a frame, a handrail provided on one side of the frame, and a plurality of foot brake universal wheels provided on the bottom of the frame, characterized in that: The frame is U-shaped, and multiple placing layers are arranged in the frame from top to bottom, each placing layer comprises a placing inclined plate capable of placing books, the placing inclined plates are arranged from front to back and gradually inclined downward, a back baffle is arranged at the rear side of each placing inclined plate, multiple partitions are arranged on each placing inclined plate, a computer is arranged on one side of the top of the frame, a telescopic ladder is rotatably arranged on one side of the frame, the ladder comprises a main ladder and an auxiliary ladder, the main ladder is hingedly connected to one side of the frame, the auxiliary ladder is telescopically arranged at the bottom of the main ladder, and multiple placing box slots capable of placing books are arranged on each placing layer.

2. A library book cart according to claim 1, wherein: The placing box slots are arranged on the placing layers, each placing box slot comprises a bottom plate, a vertical plate is fixed to the rear side of the bottom plate, and side baffles are arranged on the two sides of the vertical plate.

3. The library cart of claim 1, wherein: The auxiliary ladder is pluggably arranged on the main ladder and locked by locking bolts.

4. The library cart of claim 1, wherein: One side of the frame is provided with a table plate capable of being unfolded into a horizontal state, the table plate is rotatably hingedly connected to the frame, and a supporting frame capable of supporting the table plate into a horizontal state is arranged on the frame.

5. A library book cart according to claim 4, wherein: The supporting frame is slidably connected to the frame by a sliding block.

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