Efficient paper tube truss structure

Abstract

The utility model provides an efficient paper tube truss structure which comprises a paper tube and a paper tube toggle clip assembly, the paper tube toggle clip assembly comprises a paper tube toggle clip with thickness in the radial direction of the paper tube and a fastener, the paper tube toggle clip comprises an upper-layer toggle clip and a lower-layer toggle clip, the lower portion of the upper-layer toggle clip and the upper portion of the lower-layer toggle clip are respectively provided with at least two paper tube grooves, and the paper tube grooves are communicated with the paper tube. The paper tube can be placed in the paper tube groove; and the fastener can clamp the upper-layer toggle clip and the lower-layer toggle clip of the paper tube toggle clip with the paper tube arranged in the paper tube groove between the upper-layer toggle clip and the lower-layer toggle clip. According to the technical scheme, the manufacturing cost is low, high efficiency is achieved, applicability is high, expensive thickened paper tubes do not need to be produced in a customized mode, only common small-pipe-diameter packaging paper tubes in the market need to be used, a plurality of paper tubes are fixed together through a small number of toggle clips and fasteners, and a large-span structure can also be made through the small-pipe-diameter paper tubes. The paper tube structure can be adjusted according to different structural requirements and can be quickly disassembled and assembled, and all parts can be repeatedly utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of paper tube trusses, and in particular to an efficient paper tube truss structure. Background Art

[0002] Paper tubes are a common packaging material in daily life due to their low production cost and strong compressive properties. Due to the properties of paper, many architects and designers have also incorporated paper tubes into temporary buildings and furniture. However, due to manufacturing issues, paper tubes have poor bending resistance, and small-diameter paper tubes cannot be used to create large-span load-bearing structures, such as the horizontal load-bearing structures of benches and long tables in furniture, or the framework of temporary paper tube buildings.

[0003] Commonly used paper tubes have diameters under 200mm and wall thicknesses of less than 10mm. These tubes have poor bending resistance, so existing large-span paper tube structures are typically achieved by increasing the diameter and wall thickness of individual tubes. For example, Japanese architect Itamaru's "Cardboard Cathedral" achieves this by simply thickening and enlarging the tubes. However, the production of these custom-made, ultra-large diameter and extra-thick paper tubes requires a large amount of paper, resulting in high production costs and lengthy processing times, which contradicts the portable, efficient, and environmentally friendly characteristics of paper tube temporary structures.

[0004] Another common method is to bundle a bunch of paper tubes together. Although this bundling method can improve the bending resistance of the paper tubes, the small force-bearing area will cause the surface of the paper tubes to be broken, and the friction generated is not enough to resist the deformation force generated when a large span is subjected to load.

[0005] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content

[0006] In order to solve the above problems, the utility model provides an efficient paper tube truss structure, including a paper tube and a paper tube clamp assembly, the paper tube clamp assembly including a paper tube clamp having a thickness along the radial direction of the paper tube and a fastener, the paper tube clamp including an upper clamp and a lower clamp, the lower part of the upper clamp and the upper part of the lower clamp are respectively provided with at least two paper tube grooves, and the paper tube can be placed in the paper tube groove; the fastener can clamp the upper clamp and the lower clamp of the paper tube clamp with the paper tube in the paper tube groove arranged between the upper clamp and the lower clamp.

[0007] In this solution, upper and lower clips clamp multiple paper tubes together using fasteners, forming a single unit that can withstand greater forces. Furthermore, the thickness of the paper tube clips makes them less likely to break the paper tubes, unlike conventional rope fastening methods, thus avoiding the damage often associated with bundling. This allows the use of standard paper tubes to meet significant load-bearing requirements, resulting in a lightweight, economical, and environmentally friendly solution.

[0008] Preferably, the paper tube clip also includes a middle layer clip, which is arranged between the upper layer clip and the lower layer clip, and the upper and lower parts of the middle layer clip are respectively provided with paper tube grooves, and the fastener can clamp the upper layer clip, the middle layer clip, the lower layer clip and the paper tube in the paper tube groove arranged between the upper layer clip, the middle layer clip and the lower layer clip.

[0009] In addition to arranging multiple paper tubes horizontally, you can also arrange them vertically in double or multiple rows using intermediate clips, thereby integrating more paper tubes into a whole and further increasing their load-bearing capacity. The number of paper tubes in the upper and lower rows can be the same or different, allowing for flexible arrangement based on actual needs.

[0010] Preferably, one or more middle layer clips can be provided.

[0011] When one middle layer clip is provided, the paper tube combination has two layers in the longitudinal direction. The middle layer clips can also be provided in multiple layers as needed, in which case the paper tube combination has the number of middle layer clips plus one layer.

[0012] Preferably, the fastener is a bolt, and the paper tube clamp is provided with a fastening hole in the gap of the paper tube groove. The bolt of the bolt passes through the fastening hole of the upper clamp or the lower clamp, and passes through the fastening hole of the lower clamp or the upper clamp, and the paper tube clamp is clamped to the paper tube set in the paper tube clamp by fastening with a nut.

[0013] If the paper tube clip is equipped with a middle clip, it also has fastening holes in the gap between the paper tube slots, positioned to correspond with the fastening holes of the upper and lower clips. The fastening bolt is inserted through the fastening hole of the upper clip, then, if a middle clip is present, through the middle clip, and into the fastening hole of the lower clip. It can be secured using the nut pre-buried in the fastening hole of the lower clip. Alternatively, the bolt can be inserted through the fastening hole of the lower clip and tightened with the nut on the outside of the lower clip, clamping the paper tube clip to the paper tube for a tight, integrated assembly. Depending on actual needs, the fastening bolt can also be inserted through the fastening hole of the lower clip, through the middle layer, and secured to the upper clip.

[0014] Preferably, the paper tube clip is made of wood.

[0015] Wood has the characteristics of high friction, lightness and environmental protection, which are consistent with the purpose of using paper tube structure.

[0016] Preferably, the fastener is a metal bolt.

[0017] Metal bolts have high strength, better wear resistance and thread reliability.

[0018] Preferably, one or more sets of paper tube clip assemblies can be provided along the axial direction of the paper tube.

[0019] When the paper tube is very long, multiple sets of paper tube clip assemblies can be arranged along the axial direction to make the paper tube more integrated and have stronger pressure-bearing capacity.

[0020] The technical solution of the utility model has the following advantages:

[0021] 1. Low cost and high efficiency: No need to customize and produce expensive thickened paper tubes. Just use the common small-diameter packaging paper tubes on the market and fix multiple paper tubes together with a small number of wooden clips and metal fasteners. Even with small-diameter paper tubes, large-span structures can be made.

[0022] 2. Strong applicability: The paper tube structure can be adjusted according to different structural requirements, quickly disassembled and assembled, and all parts can be reused;

[0023] 3. Friendly to paper tubes and prolongs their service life: Due to its certain thickness, it can generate a large amount of friction with the paper tube after tightening to resist the deformation force generated by the large span load without damaging the paper tube;

[0024] 4. Strong portability: light structure and small weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0026] Figure 2 This is a schematic diagram of the explosion structure of Example 1 of the present utility model;

[0027] Figure 3 This is a schematic cross-sectional view of the structure of Example 1 of the present utility model;

[0028] Figure 4 This is a schematic structural diagram of Example 2 of the present utility model;

[0029] Figure 5 This is a schematic diagram of the temporary building application structure in Example 3 of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Paper tube clip assembly; 2. Upper clip; 3. Lower clip; 4. Middle clip; 5. Paper tube slot; 6. Bolt; 7. Fastening hole; 8. Paper tube. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1-3 As shown, the paper tube truss structure in Example 1 includes paper tubes 8 and a paper tube clip assembly 1. The paper tube clip assembly 1 comprises wooden paper tube clips of a certain thickness and metal bolt fasteners. The paper tube clips include an upper clip 2, a lower clip 3, and a middle clip 4. Six paper tube slots 5 are provided on the lower portion of the upper clip 2 and the upper portion of the lower clip 3, respectively. The middle clip 4 also has six paper tube slots 5 on its upper and lower portions, corresponding to the paper tube slots of the upper and lower clips, respectively. The six paper tubes 8 are placed in the paper tube holes formed by the paper tube slots of the upper and middle clips 2 and 4, respectively. The six paper tubes 8 are placed in the paper tube holes formed by the paper tube slots of the lower and middle clips 3, respectively, forming a truss structure with two rows of twelve paper tubes. The metal bolt fasteners can clamp the upper clip 2, the middle clip 4, the lower clip 3 of the paper tube clip and the twelve paper tubes 8 arranged in the paper tube groove 5 by squeezing up and down, thereby ensuring the stability of the structure.

[0035] In Example 1, the paper tube clip is provided with a fastening hole 7 in the gap between the paper tube grooves. The metal bolt is inserted from the fastening hole 7 of the lower clip, through the fastening hole 7 of the middle clip, and into the fastening hole 7 of the upper clip 2. The end of the fastening hole of the upper clip 2 is pre-embedded with a nut. The bolt can be tightened in the nut inside the upper clip by rotating. The built-in nut hidden in the upper clip 2 is tightened to clamp the paper tube clip to the paper tube 8 set in the paper tube clip. In this way, the nut is hidden in the clip, and the surface of the beam is flat. The paper tube truss in this embodiment has a span of 2.1 meters, and the paper tubes are evenly distributed along the axial direction with six groups of paper tube clip assemblies 1.

[0036] A common fastening method can also be to use an external nut, that is, a bolt passing through the fastening hole of the upper clip 2, and tightening the nut on the outside of the upper clip 2 to clamp the entire structure. Although this method has an uneven surface, the clip is easy to process and has high production efficiency.

[0037] The fasteners can be passed from the upper layer clip to the lower layer clip or from the lower layer clip to the upper layer clip, which can be selected according to the convenience of operation.

[0038] Commonly used paper tubes have an inner diameter greater than 30 mm and a wall thickness greater than 3 mm. The paper tube in this embodiment takes an inner diameter of 40 mm and a wall thickness of 3 mm as an example. The paper tube serves as the main structural member, and the number of layers in the horizontal direction needs to be greater than or equal to two layers. A two-layer structure is adopted in this embodiment; the wooden clip is customized according to the outer diameter of the paper tube, and the thickness is not less than 1 / 2 of the inner diameter of the paper tube, mainly serving as a fixed limit; the metal fastener is rotated and tightened through the hole of the wooden clip, tightening and fixing the wooden clip in the vertical direction, so that a large friction force is generated between the wooden clip and the paper tube to resist the bending deformation force generated when the paper tube is subjected to load.

[0039] Example 2

[0040] like Figure 4 As shown, the paper tube truss in the technical solution of the present invention can change the number of paper tube layers, paper tube diameter, wooden component thickness, and metal fastener dimensions of the paper tube truss structure according to structural requirements. For example, when used as a temporary building frame structure, the number and quantity of paper tube layers can be increased; when used as a tabletop structure with a larger span, the diameter of the paper tubes and the thickness of the wooden clips can be increased to enhance the bending resistance of the paper tube truss. This embodiment demonstrates a truss structure using two layers of middle clips and a three-layer paper tube arrangement based on Example 1. The truss in Example 2 can quickly increase the truss structure strength based on the paper tube truss of Example 1.

[0041] Example 3

[0042] Based on Example 2, the paper tube truss structure of the present invention can be freely constructed into a paper tube beam-column frame system through a variety of methods. By interconnecting paper tube crossbeams, various large and medium-sized paper tube trusses and paper tube beam-column frame systems can be formed, which can be used to make various practical structures such as portable paper furniture and simple temporary buildings. For example, the truss in Example 2 can be used as a crossbeam unit, and multiple units can be constructed to form a simple structure. Figure 5 Shown is a temporary building frame constructed using the paper tube truss structure of this technical solution.

[0043] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An efficient paper tube truss structure, characterized in that: The invention comprises a paper tube (8) and a paper tube clamp assembly (1). The paper tube clamp assembly (1) comprises a paper tube clamp having a thickness along the radial direction of the paper tube and a fastener. The paper tube clamp comprises an upper clamp (2) and a lower clamp (3). The lower part of the upper clamp (2) and the upper part of the lower clamp (3) are respectively provided with at least two paper tube grooves (5). The paper tube (8) can be placed in the paper tube grooves. The fastener can clamp the upper clamp (2) and the lower clamp (3) of the paper tube clamp with the paper tube (8) arranged in the paper tube grooves (5) between the upper clamp (2) and the lower clamp (3).

2. The efficient paper tube truss structure according to claim 1, characterized in that: The paper tube clip buckle further comprises a middle layer clip buckle (4), which is arranged between the upper layer clip buckle (2) and the lower layer clip buckle (3), and the upper and lower parts of the middle layer clip buckle (4) are respectively provided with paper tube grooves (5), and the fastener can clamp the upper layer clip buckle (2), the middle layer clip buckle (4), the lower layer clip buckle (3) and the paper tube (8) arranged in the paper tube groove (5) between the upper layer clip buckle (2), the middle layer clip buckle (4), and the lower layer clip buckle (3).

3. The efficient paper tube truss structure according to claim 2, characterized in that: One or more middle layer clips (4) can be provided.

4. The efficient paper tube truss structure according to claim 1, characterized in that: The fastener is a bolt (6), and the paper tube clip is provided with a fastening hole (7) in the gap of the paper tube groove. The bolt of the bolt (6) is passed through the fastening hole (7) of the upper clip (2) or the lower clip (3), and passed through the fastening hole (7) of the lower clip (3) or the upper clip (2). The paper tube clip is clamped to the paper tube (8) provided in the paper tube clip by fastening with a nut.

5. The efficient paper tube truss structure according to claim 1, characterized in that: The paper tube clip is made of wood.

6. The efficient paper tube truss structure according to claim 1, characterized in that: The fastener is a metal bolt.

7. The efficient paper tube truss structure according to claim 1, characterized in that: One or more sets of paper tube clip assemblies (1) can be arranged along the axial direction of the paper tube.

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