Multi-functional modular combined desk

Abstract

The utility model discloses a multifunctional modular combined desk, and the desk comprises a desk board, a desk cabinet, a side storage box and detachable supporting legs (vertical or C-shaped), mushroom-shaped sliding grooves are arranged on the two sides of the desk cabinet and used for mounting the storage box, and the height of the supporting legs is adjusted or the mounting mode is switched through the threaded holes. The components are modularly designed, can be flexibly assembled, adjusted in height and stored in space, adapted to the needs of different school age stages, environmentally friendly and durable in material, solve the problems of insufficient storage, fixed layout and high maintenance cost of the traditional desk, and improve the space utilization rate and use comfort of the classroom.

Description

Technical Field

[0001] This utility model relates to student desks and chairs, specifically to a multifunctional modular combination desk. Background Technology

[0002] 1. The contradiction between the standardization of existing desk designs and the differences in needs.

[0003] Currently, student desks generally adopt a uniform and standardized design, failing to fully consider the differences in physiological characteristics and learning needs of students at different age levels. They lack sufficient storage capacity and offer low comfort. Prolonged use of mismatched desks and chairs can easily lead to scoliosis. Although the national standard "Functional Dimensions and Technical Requirements for School Desks and Chairs" (GB / T 3976-2014) proposes model-specific matching suggestions, in practice, due to complex procurement processes and cost constraints, most schools still use a single model.

[0004] 2. Inefficient school procurement mechanisms and resource allocation.

[0005] School desk procurement generally suffers from rigid processes: public schools must procure desks through centralized bidding, which limits the selection of models and takes a long time; while private schools can procure desks independently, the lack of professional evaluation leads to unreasonable selections. In addition, existing desks cannot flexibly adapt to changes in classroom space layout.

[0006] 3. Lack of storage function and contradiction in space utilization

[0007] With the surge in the number of textbooks and supplementary materials (the average junior high school student uses 12.7 books per day), the storage space of traditional desks is severely insufficient. Insufficient drawer depth and simplistic design force students to place their backpacks in the aisles or behind their chairs, affecting their posture and posing safety hazards. Existing solutions, such as storage cabinets at the back of the classroom, actually encroach on activity space and fail to fundamentally optimize efficiency.

[0008] 4. Insufficient ergonomics and functional expandability

[0009] Most school desks are not designed with ergonomics in mind, featuring fixed horizontal angles and lacking adaptability for various scenarios such as writing, reading, and using digital devices. Furthermore, sharp edges and rough materials are common, further impacting safety and comfort.

[0010] 5. Maintenance and management costs and sustainability challenges

[0011] Existing school desks suffer from high damage rates due to structural defects (such as loose screws and weak welds), leading to rising maintenance costs. Furthermore, traditional wooden or steel desks are environmentally unfriendly and cannot adapt to changes in students' height, resulting in resource waste. Utility Model Content

[0012] This utility model provides a multifunctional modular combination desk and bookshelf, which consists of a separate desk and a multi-layer bookshelf.

[0013] The desk consists of a tabletop, a cabinet, side storage boxes, and support legs.

[0014] The table and cabinet have openings at the top and front, and mushroom-shaped grooves on both sides.

[0015] The tabletop is wider than the cabinet and can be detachably installed on top of the cabinet.

[0016] The side storage box can be detachably installed on both sides of the table and cabinet. A T-shaped anti-detachment buckle is fixed on one side of the side storage box. The anti-detachment buckle is slidably set in the mushroom-shaped groove. The top of the side storage box is limited by the table board to prevent the anti-detachment buckle from coming out of the mushroom-shaped groove. The front of the side storage box has a storage opening and multiple storage compartments inside.

[0017] The support legs are detachably mounted on both sides of the table and cabinet using bolts.

[0018] The multi-layer bookshelf has a pair of upright support frames, which are fixedly connected at the top by the bookshelf top plate. The upright support frame has a strip base and a fixed column that is vertically fixed on the base. A sliding column of the same height as the fixed column is slidably installed on the strip base. The fixed column and the sliding column have a third threaded hole of the same height. Multiple L-shaped display panels are detachably installed between the upright support frames. The L-shaped display panels are fixedly connected to the third threaded holes of the fixed column and the sliding column by a third bolt.

[0019] Furthermore, the table and cabinet have two rows of vertically distributed through holes on both sides;

[0020] The support legs are either vertical or C-shaped, and the vertical or C-shaped support legs on both sides are fixedly connected by a connecting crossbar.

[0021] The first bolt passes through the through hole and is threaded into the vertical support leg to connect the vertical support leg to the table and cabinet.

[0022] The C-shaped support leg is connected to the tabletop or cabinet via a second bolt.

[0023] Furthermore, the sides of the table and cabinet are provided with vertical opening slots for accommodating vertical support legs, and through holes are provided in the vertical opening slots.

[0024] Furthermore, the C-shaped support leg is equipped with two sets of parallel horizontal crossbars, one above the other, which are connected by a bent rod formed in one piece.

[0025] The second bolt passes through the tabletop and is threaded to the upper horizontal crossbar to connect the C-shaped support leg to the tabletop, or

[0026] The second bolt passes through the through hole and is threaded to the upper horizontal bar to connect the C-shaped support leg to the table and cabinet.

[0027] Furthermore, when the second bolt passes through the tabletop and the upper horizontal bar to connect the C-shaped support leg to the tabletop, no side storage boxes are installed on either side of the table cabinet.

[0028] Furthermore, some through holes are located below the side storage box installed on the table and cabinet, so that the C-shaped support legs and the side storage box can be installed on the table and cabinet at the same time.

[0029] Furthermore, the top of the column support frame is connected to the top plate of the bookshelf using mortise and tenon joints, and there are two rows of mortise and tenon slots on the left and right sides at the bottom of the top plate of the bookshelf for the column support frame to be inserted.

[0030] Furthermore, a counterweight is provided at the bottom of the strip base.

[0031] The advantages of this utility model are:

[0032] 1) Modular and flexible combination design

[0033] Split-type structure: The desk and bookshelf can be used independently or combined, and can be flexibly adjusted to fit the classroom space, solving the problem of fixed layout of traditional desks.

[0034] Dual-mode support legs: ① Vertical support legs: Height adjustable via vertical through-holes in the desk or cabinet to accommodate students of different heights and meet the dynamic needs of students of all ages. ② C-shaped support legs: Can be fixed to the desk or cabinet, compatible with or avoiding side storage boxes, offering flexible installation.

[0035] Detachable storage box: It can be quickly connected to the table and cabinet via T-shaped buckles and mushroom-shaped sliding grooves. The top is limited by the tabletop, and it can be installed as needed to solve the space conflict between storage and support.

[0036] 2) Dynamic adjustment and stability enhancement of bookshelves

[0037] Adjustable spacing and angle: The sliding column adjusts the spacing through the base groove, changing the tilt angle of the L-shaped platform to accommodate items of different sizes (such as textbooks and teaching aids) and improve space utilization.

[0038] Mortise and tenon joint + bolt combination: The top mortise and tenon joint allows for quick positioning, and the load plate is fixed by bolts, balancing assembly efficiency and structural stability; the strip base counterweight enhances anti-tipping ability.

[0039] 3) Expanding the capacity of the three-dimensional storage system

[0040] Basic desk and cabinet storage: Textbooks are stored inside the desk and cabinet, while side storage boxes (multi-compartment storage slots + handle grooves) are used to store stationery in categories, solving the problems of traditional desk drawers being too simple and lacking depth.

[0041] Vertical bookshelf expansion: Multi-layer L-shaped shelves provide three-dimensional storage space, freeing up desktop space and keeping things tidy.

[0042] 4) Low maintenance and long-lasting durability

[0043] Quick-release and quick-replacement of components: Bolts and clips allow for the independent replacement of individual components (such as support legs and storage boxes), reducing maintenance costs.

[0044] Dynamically adaptable to growth: The height of the support legs is adjustable and the bookshelf can be flexibly reconfigured to adapt to changes in students' height, extend the service life, and reduce resource waste. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is an exploded view of the desk module of the multifunctional modular combined desk of this utility model;

[0047] Figure 2 This is a schematic diagram illustrating the use of vertical support legs as the leg support for the desk in Example 1.

[0048] Figure 3 This is a schematic diagram illustrating the use of C-shaped support legs as the leg support for the desk in Example 2.

[0049] Figure 4 A diagram showing the positional relationship between the C-shaped support legs and the tabletop / cabinet when the C-shaped support legs are fixedly connected to the tabletop;

[0050] Figure 5 Structural diagram of the side storage box and anti-detachment buckle;

[0051] Figure 6 This is a schematic diagram of a multi-tiered bookshelf;

[0052] Figure 7 This is a modular breakdown diagram of a multi-tiered bookshelf.

[0053] Figure 8 This is an overall view of the desk and multi-layer bookshelf of this utility model. Detailed Implementation

[0054] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0055] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0056] This utility model provides a multifunctional modular combination desk and bookshelf, which consists of a separate desk 100 and a multi-layer bookshelf 200. Both the desk 100 and the multi-layer bookshelf 200 can be used independently. Figure 8 As shown. It should be noted that, Figure 8 The image also shows either the vertical support leg 141 or the C-shaped support leg 142 described below, but this is for illustrative purposes only. In practice, the desk 100 can only be equipped with one of the vertical support leg 141 or the C-shaped support leg 142 to provide leg support.

[0057] 100 desks

[0058] like Figure 1-5 As shown, the desk 100 consists of a tabletop 110, a desk cabinet 120, a side storage box 130, and support legs 140. The support legs 140 of this utility model can be either vertical support legs 141 or C-shaped support legs 142. Depending on the needs of students at different stages, vertical support legs 141 or C-shaped support legs can be used as the leg support of the desk 100.

[0059] The table cabinet 120 has openings on its top and front sides, and mushroom-shaped grooves 121, vertical opening grooves 122, and two rows of vertically distributed through holes 123 on both sides. The mushroom-shaped grooves 121 are used to install and position the side storage boxes 130. The middle of the side panel of the table cabinet 120 protrudes outward to form a vertical opening groove 122 on the inner side for accommodating the vertical support legs 141. The two rows of vertically distributed through holes 123 are located in the vertical opening grooves 122, and these through holes 123 are used to install the vertical support legs 141 or C-shaped support legs onto the table cabinet 120.

[0060] The tabletop 110 is wider than the cabinet 120 and is detachably mounted on the top of the cabinet 120 by screws 111.

[0061] like Figure 5As shown, the side storage box 130 is detachably installed on both sides of the table and cabinet 120. The installation method is as follows: a T-shaped anti-detachment buckle 131 is fixed to one side of the side storage box 130, and the anti-detachment buckle 131 slides within the mushroom-shaped groove 121. After inserting the anti-detachment buckle 131 of the side storage box 130 into the mushroom-shaped groove 121, it is pressed down to complete the fixation. The upper surface of the fixed side storage box 130 is lower than the top surface of the table and cabinet. Then, the tabletop 110 is installed, and the tabletop 110 provides a limit to prevent the anti-detachment buckle 131 from coming out of the mushroom-shaped groove 121, thus preventing the side storage box 130 from falling off. The side storage box 130 has a storage opening at the front and multiple storage compartments inside for storing small items or long, thin objects, such as tissues and pens. The outer side of the side storage box 130 has a handle groove for easy handling during installation and removal.

[0062] The inner side of the side storage box 130 is provided with a clearance groove 132 that matches the raised vertical opening groove 122, so that the side storage box 130 fits snugly against the side of the table cabinet 120.

[0063] Example 1

[0064] In this embodiment, vertical support legs 141 are selected as the leg supports of the desk 100. The vertical support legs 141 on both sides are fixedly connected by a connecting crossbar 143. During installation, the vertical support legs 141 are directly inserted into the vertical opening slots 122 on both sides of the desk cabinet 120, and the first bolt (not shown in the figure) is threaded through the through hole 123 and connected to the vertical support leg 141 to fix the vertical support leg 141 to the desk cabinet 120. Different through holes 123 can be used to install the vertical support legs 141 as needed, thereby adjusting the installation height of the desk cabinet 120.

[0065] Example 2

[0066] In this embodiment, C-shaped support legs 142 are selected as the leg supports of the desk 100. There is a pair of C-shaped support legs 142, and each pair of C-shaped support legs 142 has two sets of horizontal crossbars distributed in parallel, and the upper and lower sets of horizontal crossbars are connected by a bent rod integrally formed. The bent rod between a pair of C-shaped support legs 142 is fixedly connected by a connecting crossbar 143. Threaded holes are provided on the top and side of the upper horizontal crossbar 142-1.

[0067] The C-shaped support leg 142 has two installation methods:

[0068] Method 1: Securely connect the C-shaped support leg to the tabletop 110. (Example:...) Figure 4As shown, the second bolt 142-2 passes through the tabletop 110 and the upper horizontal bar 142-1 to connect the C-shaped support leg 142 to the tabletop 110. It should be noted that, in this installation method, because the side storage box 130 interferes with the C-shaped support leg 142, the side storage boxes 130 cannot be installed on both sides of the table cabinet 120 at the same time.

[0069] Method 2: Directly fix the upper horizontal bar 142-1 of the C-shaped support leg to the table cabinet 120. Use a second bolt to thread it through the through hole 123 of the table cabinet 120 to the upper horizontal bar 142-1 to connect the C-shaped support leg 142 to the table cabinet 120. Since part of the through hole 123 is located below the side storage box 130 installed on the table cabinet 120, the C-shaped support leg 142 will not interfere with the installed side storage box 130 when connecting it to the table cabinet 120. Therefore, both the side storage box 130 and the C-shaped support leg 142 can be installed on the table cabinet 120 simultaneously.

[0070] Multi-tier bookshelf 200

[0071] like Figure 5-6 As shown, the multi-layer bookshelf has a pair of upright support frames 210. The tops of the upright support frames 210 are fixedly connected by a bookshelf top plate 220. The upright support frame 210 has a strip base 211 and a fixed column 212 that is vertically fixed on the strip base 211. A sliding groove 211-1 is provided on the strip base 211. A sliding column 213 with the same height as the fixed column 212 is slidably installed in the sliding groove 211-1. The fixed column 212 and the sliding column 213 have third threaded holes 214 with the same height. A multi-layer L-shaped display plate 230 is detachably installed between the upright support frames 210. The L-shaped display plate 230 is fixedly connected to the third threaded holes 214 of the fixed column 212 and the sliding column 213 by a third bolt 215.

[0072] The top of the upright support frame 210 is connected to the top plate 220 of the bookshelf using mortise and tenon joints. Two rows of mortise and tenon slots for the upright support frame 210 to be inserted are located at the bottom of the top plate 220. This mortise and tenon joint connection makes the bookshelf structure more stable and facilitates quick assembly and disassembly.

[0073] In an optional embodiment, the bottom of the strip base 211 is provided with a counterweight to increase the stability of the bookshelf and prevent it from tipping over.

[0074] The distance between the fixed column 212 and the sliding column 213 can be adjusted by sliding the column 213, thereby adjusting the tilt angle of the L-shaped shelf 230 and enabling flexible use of the multi-layer bookshelf 200.

[0075] Material selection:

[0076] The tabletop 110 is made of 20mm thick impregnated paper-faced particleboard, meeting the environmental protection, formaldehyde emission, and processing requirements of QB / T 4071 for wood. The standard stipulates that the appearance of wooden parts should conform to the processing standards of GB / T 3324-2017, and the formaldehyde emission should meet the requirements of GB 18584 "Limits of Hazardous Substances in Wooden Furniture for Interior Decoration and Renovation Materials"; it should also meet the GB / T 15102 "Impregnated Paper-Faceted Artificial Boards" standard, with a formaldehyde emission ≤0.05 mg / m³ (superior grade). ENF grade (formaldehyde emission ≤0.025 mg / m³) or E0 grade boards are recommended.

[0077] The table and cabinet 120 is made of 2mm thick steel plate or aluminum alloy, and must pass the physical and chemical performance test of the spray coating, demonstrating corrosion resistance and adhesion. Standards require that metal parts meet the appearance requirements of GB / T 3325-2017, with no burrs or rust on the surface. Rust prevention treatment is achieved through electrophoretic coating.

[0078] Vertical support leg 141 is made of 2mm thick steel pipe bent and welded, while C-shaped support leg 142 is also made of 2mm thick steel pipe bent. The steel pipes meet the mechanical performance requirements of QB / T 4071 for metal frames, including stability, connector strength, and load-bearing capacity. All welded areas must be free of incomplete or missing welds.

[0079] The side storage box 130, bookshelf top panel 220, L-shaped storage plate 230, fixed column 212, sliding column 213, and strip base 211 are made of PVC hot melt injection molding. The standard stipulates that plastic parts should be made of high-quality materials such as polypropylene (PP) and polystyrene (PS) and must meet the requirements of strength, hardness, wear resistance and environmental protection. Although PVC is not explicitly listed as a recommended material in the standard, it must pass the test for limits of harmful substances (such as phthalates and heavy metal migration).

[0080] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A multifunctional modular combination desk, characterized in that, The desk consists of a tabletop, a cabinet, side storage boxes, and support legs. The sides of the table and cabinet are equipped with mushroom-shaped grooves; The tabletop is wider than the cabinet and can be detachably installed on top of the cabinet. The side storage box can be detachably installed on both sides of the table and cabinet. A T-shaped anti-detachment buckle is fixed on one side of the side storage box. The anti-detachment buckle is slidably set in the mushroom-shaped groove. The top of the side storage box is limited by the table board to prevent the anti-detachment buckle from coming out of the mushroom-shaped groove. The front of the side storage box has a storage opening and multiple storage compartments inside. The support legs are detachably mounted on both sides of the table or cabinet using bolts.

2. The multifunctional modular combination desk as described in claim 1, characterized in that, The table and cabinet have two rows of vertically distributed through holes on both sides; The support legs are either vertical or C-shaped, and the vertical or C-shaped support legs on both sides are fixedly connected by a connecting crossbar. The first bolt passes through the through hole and is threaded into the vertical support leg to connect the vertical support leg to the table and cabinet. The C-shaped support leg is connected to the tabletop or cabinet via a second bolt.

3. A multifunctional modular combination desk as described in claim 2, characterized in that, The table and cabinet have vertical openings on both sides to accommodate vertical support legs, and through holes are located in the vertical openings.

4. A multifunctional modular combination desk as described in claim 2, characterized in that, The C-shaped support leg has two sets of parallel horizontal crossbars, one above the other, connected by a bent rod formed in one piece. The second bolt passes through the tabletop and is threaded to the upper horizontal crossbar to connect the C-shaped support leg to the tabletop, or The second bolt passes through the through hole and is threaded to the upper horizontal bar to connect the C-shaped support leg to the table and cabinet.

5. A multifunctional modular combination desk as described in claim 4, characterized in that, When the second bolt passes through the tabletop and the upper horizontal bar to connect the C-shaped support leg to the tabletop, no side storage boxes are installed on either side of the table cabinet.

6. A multifunctional modular combination desk as described in claim 4, characterized in that, Some of the through holes are located below the side storage box installed on the table or cabinet, so that the C-shaped support legs and the side storage box can be installed on the table or cabinet at the same time.

7. A multifunctional modular combination desk as described in claim 1, characterized in that, The top of the support column is connected to the top plate of the bookshelf using mortise and tenon joints. There are two rows of mortise and tenon slots on the left and right sides at the bottom of the top plate of the bookshelf for the support column to be inserted.

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