Chinese name: Bookshelf mbth: Bookshelf classification: single-column, multi-column and sliding shelf structure: hanging, steel-wood combination classification, wooden bookshelf, single-column, multi-column, stacked bookshelf, compact shelf, sliding shelf, tree bookshelf, development history, early days, Ming and Qing dynasties, advantages, structural functions, maintenance instructions and classification The bookshelves in the library can be divided into metal bookshelves and classification according to materials. , processed and combined, coated with paint or affixed with surface decoration materials, rich in soft texture. The common form of library is vertical inclined L-shaped bookshelf, which is convenient for readers to consult books and has different specifications. The so-called single-column bookcase refers to the single-column metal plates on both sides to bear the weight of books on each horizontal partition. Each bookshelf is 90 cm long and can be used alone or placed continuously. Generally speaking, the height of the bookshelf is more than 200cm, and the top will be connected with tie rods to ensure safety. Multi-column means that there are two or more columns on both sides of the bookshelf, which bear the book load transferred by the horizontal partition. However, in order to enhance the appearance, the sides and top of the metal multi-column bookshelf are pasted with wooden boards. In order to make full use of the limited space to store a large number of books, it is a good method to apply the strong and durable characteristics of steel materials to provide display books for stacked bookshelves. However, different countries have their own bookshelf specifications. For example, laminated bookshelves in the United States have a clear height of 2280mm on each floor, and each floor is divided into 5-7 sections. In Britain and other European countries, the clear height of each floor is 2250mm, the width of one side of the partition is 200mm, and the width of the column is 50 mm. The dense shelf was designed by Swiss Hans Ingold at the beginning of the 20th century. After nearly a century of development and evolution, the use of dense shelves is more and more extensive, and today there are two different forms. One is a movable bookshelf made of metal, which is characterized in that the axial direction (longitudinal direction) of the bookshelf is perpendicular to the track direction. The other is made of wood, and the axial direction of the bookshelf is parallel to the track direction. Many audio-visual rooms in domestic libraries use it to store audio-visual materials. The most important and obvious feature of dense bookshelves is to save space for books. The front and rear bookshelves are closely placed together, and then the bookshelves are moved through the track, which saves the aisle space in front of and behind the bookshelves and can place more books and materials in a limited space. Because of the close proximity between bookshelves, it has also become a place where books can be properly protected; In addition, it also increases the convenience of use and management. But dense bookshelves also have some disadvantages. First, the cost is too high. Unless there is a relatively generous budget, it is not easy to fully equip facilities with dense bookshelves (such as lighting and control facilities). Second, the safety of bookshelves, including general use and earthquake safety. Due to the improvement of technology, the dense rack is changed from the previous mechanical operation to the electric operation, and it is very safe for users to operate according to the steps. However, the security of dense bookshelves (books and people) is always difficult to fully grasp during the earthquake, and they are still vulnerable when the earthquake comes. Sliding shelves are divided into manual and electric. Two books are fixed, and the middle bookshelf is guided by the base guide rail to slide, which is one of the ways to effectively use limited space to store a large number of books. Tree Bookshelf Venetian designer kostas syrtariotis exhibited his latest product "Tree Bookshelf" at 20 1 1 Milan Design Week kidsroom zoom. As the name implies, this bookcase is taken from the shape of a tree, with branches protruding out of the wall, and users can put books or other small objects on the branches. The designer chose ebony and gray board paper as the production materials, and the surface was coated with a layer of polishing paint. 10 minutes to assemble the "tree bookshelf". It can be placed against the wall and fixed with only two screws. Overall dimensions are 12 x, 90 x and 20 cm. Although there were books in the early history of the development of tree bookshelves, there were not necessarily bookshelves. With the development, people will put books on fixed and convenient bookshelves, so we can speculate that simple furniture such as several cases in the early Warring States period is the embryonic form of bookshelves. This is the peak period of furniture development in China in the Ming Dynasty. On the basis of previous furniture, the furniture in Ming Dynasty has reached the aesthetic characteristics of beauty in terms of technology, materials, structure, workmanship and decoration. Simple but not simple. The main materials are rosewood, rosewood and litchi. Hardwood is not only durable, but also has natural texture, color, decoration, texture and smell. The technology adopts tenon-mortise structure, exquisite workmanship, natural lines and less decoration. The characteristics of Ming style furniture can be summarized in four words: simple, thick, refined and elegant. Therefore, Ming-style furniture is not only the peak of China furniture, but also the wonderful work of the world furniture. At that time, the shape of the bookshelf was almost perfect. In the Qing dynasty, due to the luxury and noble pursuit of the nobles in the Qing dynasty, their furniture was also complicated. Although the materials and techniques are similar to those of the Ming Dynasty, its strong-resistant decoration is completely opposite to that of the Ming Dynasty. We have seen the unique artistic achievements as well as the complicated and exquisite vulgarity. In modern times, new technologies, new materials, new decorative styles, new ideas, etc. It's all reflected on the bookshelf. At the same time, people began to pay attention to people-oriented, so bookshelves catering to different customer needs appeared. Advantages: 1, hanging advantages: saving the space at the lower part, can be used for other purposes, and can also play the role of decorating the wall. 2. Advantages of steel-wood combination: easy disassembly, the height of the laminate can be adjusted freely according to the size of the book, and the laminate has strong bearing capacity and is not easy to deform. 3. Advantages of leaning against the wall: Choose a wall in the room and stick it on the wall, which occupies extremely limited space and is suitable for small indoor space. The rich shelves in the bookshelf bring great convenience to home office. Only when the space extends upwards can the display function be maximized. 4, embedded advantages: can be tailored according to the items to be stored, in addition to the size, you can also customize your own style to achieve the overall style. In addition, a closed storage design scheme can be adopted, that is, a wooden wall with many small doors is placed in front of the cabinet. When you open the small door, you can see the things in the cupboard. At the same time, the storage space recessed into the wall can accommodate all kinds of furniture and furnishings from TV to vases. 5, independent advantage: it is more adaptable, and you can bring them to your new home when you move; It is also suitable for bookworms or books; In order to decorate the facade, some people will deliberately buy an independent bookshelf with unique design to reflect their identity and grade; In addition, independent bookshelves can also be used to block space, similar to the role of screens. 6. Advantages of partition type: it can be disassembled by itself to meet the requirements of different spaces. Usually, bookshelves are divided into single-sided bookshelves and double-sided bookshelves. Bookshelves can be infinitely connected according to the frame. Bookshelves in schools are generally divided into six floors, but they can be four or five floors according to the situation. According to the conventional specifications, the width of each frame is 900- 1000, the depth of single-sided bookshelf is 250-350, and the height is about 2000 mm. Structure and function of bookcase: 1. The underframe is generally segmented and combined, which has docking and interchangeability. New bookcase 2. Section type, shelf height, shelf width, number of layers and groups can be selected according to customer requirements. 3. Powder: electrostatic powder spraying, environmental protection, non-toxic and tasteless. 4. Bookshelf is a kind of frame structure, which consists of base, column, shelf, hanging plate, top plate, side guard plate, bookends and so on. 5. The shelf and supporting plate of the hook are stable and firm after being combined, and the spacing between layers can be freely adjusted as required. Each shelf is loaded with 40kg on one side and 80kg on both sides. If you need to increase the load. Can be specially designed. 6. The welding part adopts high standard fusion welding, and the surface is smooth. 7. According to the latest regulations of the National Archives Bureau on A4 paper standard, in order to make the original national standard A4 paper size in line with international standards, it is necessary to increase the height. This technical parameter is formulated according to the national first-class document standard. Maintenance instructions: wet environment is easy to make the surface plastic powder fall off, leading to rust; The exhibition space is easy to dry, ventilate and avoid light; The frame should avoid long-term sun exposure, and plastic powder is sensitive to ultraviolet rays and easy to fade, which affects the appearance; It is forbidden to wipe the sprayed surface with gasoline, high alcohol and rosin water. Otherwise, the painted surface will lose luster and fade. Maintenance precautions: you can clean it with a wet cloth, and then wipe off the water with a dry cloth. If it is difficult to clean, you can spit with toothpaste before cleaning.