Prestress assembly type 3D printing impervious flower bed

Abstract

The invention provides a prestress assembly type 3D printing anti-seepage flower bed which is petal-shaped, polygonal or irregular in shape, the flower bed is equally divided into a plurality of basic units at the centroid according to angles, each basic unit comprises a bottom plate and side plates, a plurality of arc-shaped hole channels are formed in the positions, close to the two side faces, in the bottom plate of each basic unit at intervals, and the arc-shaped hole channels are communicated with the side plates. The multiple arc-shaped hole channels located on the same side close to the bottom plate are arranged at intervals along the side edge of the bottom plate, the two ends of each arc-shaped hole channel communicate with the upper surface and the side face of the bottom plate correspondingly, after every two adjacent basic units are spliced, the arc-shaped hole channels in the contact faces are in one-to-one correspondence, and every two corresponding arc-shaped hole channels can be spliced into a complete arc-shaped channel. Two ends of the arc-shaped channel are respectively positioned on the upper surfaces of the adjacent bottom plates; the adjacent basic units are connected through steel cable units penetrating through the arc-shaped channels, and the steel cable units and the arc-shaped channels are in one-to-one correspondence.

Description

Technical Field

[0001] The invention relates to the field of civil engineering construction, and in particular to a prestressed assembled 3D printed anti-seepage flower bed. Background Art

[0002] 3D printing technology is a rapid prototyping technology based on digital models. It constructs the shape of an object by stacking layers and bonding materials. It has many advantages, such as no template, high degree of freedom, strong personalization, high utilization rate of raw materials, time saving and labor saving. At present, 3D printing is mostly used to print some special-shaped decorative components that are difficult to build with traditional construction methods. Its unique shape can give full play to the flexible and changeable construction characteristics of 3D printing, and bring the dual advantages of beauty and economy.

[0003] However, if some large special-shaped components are directly printed, such as petal-shaped flower beds, it will cause difficulties in transportation. Therefore, it is impossible to print them all at once in the factory, and they can only be split into several units and transported to the site for assembly. However, the traditional assembly construction method has many problems such as weak connection performance, rainwater easily leaking from the joints, and corroding components. This undoubtedly caused a lot of waste of maintenance and repair costs in the later stage. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a prestressed assembled 3D printed anti-seepage flower bed, which overcomes the shortcomings of the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a prestressed assembled 3D printed anti-seepage flower bed, the flower bed is a special-shaped axisymmetric structure, the shape of the flower bed is a petal shape, a polygon or an irregular shape, the flower bed is divided into a number of basic units at the centroid according to an angle, the basic unit includes a bottom plate and a side plate, the bottom plate of the basic unit has a plurality of arc-shaped channels arranged at intervals near its two side surfaces, and the plurality of arc-shaped channels located on the same side of the bottom plate are arranged at intervals along the side of the bottom plate, and the two ends of each arc-shaped channel are respectively connected with the upper surface and the side of the bottom plate, and after the adjacent two basic units are spliced, the arc-shaped channels on the contact surface correspond one to one, and the corresponding two arc-shaped channels can be spliced ​​into a complete arc-shaped channel, and the two ends of the arc-shaped channel are respectively located on the upper surface of the adjacent bottom plates;

[0006] Adjacent basic units are connected via steel cable units passing through the arc-shaped channels, and there is a one-to-one correspondence between the steel cable units and the arc-shaped channels.

[0007] Optionally, the steel cable unit includes a steel cable, a steel sleeve and two lifting eye bolts. The steel cable passes through the arc-shaped channel, and the two ends of the steel cable respectively extend from the upper surface of the base plates of two adjacent basic units. The two ends of the steel cable are respectively connected to the lifting eyes on the lifting eye bolts, and the bolt parts on the two lifting eyes are respectively screwed into the steel sleeve from the two ends of the steel sleeve, and the inner wall of the steel sleeve has an internal thread that matches the bolt.

[0008] Optionally, the inner bottom surface and inner side surfaces of the flower bed are coated with a 20-30 mm ECC waterproof layer.

[0009] The advantages and positive effects of the present invention are: the connection is carried out in a prestressed manner, the performance is reliable, the strength is high, the application of ECC makes the component have excellent deformation ability and crack control ability, good anti-seepage performance, excellent durability, simple production, good integrity, convenient assembly, and low transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of a specific implementation mode of the present invention;

[0011] Figure 2 yes Figure 1 Schematic diagram of the local structure of the middle arc-shaped channel;

[0012] Figure 3 yes Figure 1 A schematic diagram of the local structure in which the arc-shaped channels in the two basic unit structures are connected by steel cable units;

[0013] In the figure: 1, flower bed; 2, foundation unit; 3, steel cable unit; 3-1, steel cable; 3-2, eye bolt; 3-3, steel sleeve; 4, arc-shaped channel. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0015] like Figure 1 , Figure 2 As shown, the present invention provides a prestressed assembled 3D printed anti-seepage flower bed, the flower bed 1 is a special-shaped axisymmetric structure, the shape of the flower bed 1 can be petal-shaped, polygonal or irregular, in this embodiment, the shape of the flower bed 1 is petal-shaped, the flower bed 1 is divided into a number of basic units 2 at an angle at the centroid, the basic unit 2 is made of concrete material by 3D printing, the basic unit 2 includes a bottom plate and a side plate, the bottom plate of the basic unit 2 has a plurality of arc-shaped channels 4 arranged at intervals near its two side surfaces, the length and angle of the arc-shaped channels 4 are adjusted according to the actual design size, the plurality of arc-shaped channels 4 located on the same side of the bottom plate are arranged at intervals along the side of the bottom plate, and the two ends of each arc-shaped channel 4 are respectively connected with the upper surface and the side of the bottom plate, after the adjacent two basic units 2 are spliced, the arc-shaped channels 4 on the contact surface correspond one by one, and the corresponding two arc-shaped channels 4 can be spliced ​​into a complete arc-shaped channel, and the two ends of the arc-shaped channel are respectively located on the upper surfaces of the adjacent bottom plates;

[0016] Adjacent basic units 2 are connected by steel cable units 3 passing through the arc-shaped channels, and there is a one-to-one correspondence between the steel cable units 3 and the arc-shaped channels. After the adjacent basic units 2 are spliced, the steel cable units 3 passing through the arc-shaped channels are tightened to apply prestress between the adjacent basic units 2.

[0017] like Figure 3As shown, the steel cable unit in this embodiment includes a steel cable 3-1, a steel sleeve 3-3 and two eyebolts 3-2. The steel cable 3-1 passes through the arc-shaped channel. The two ends of the steel cable 3-1 extend from the upper surface of the bottom plate of two adjacent basic units 2 respectively. The two ends of the steel cable 3-1 are respectively connected to the eyebolts on the eyebolts 3-2. The bolt parts on the two eyebolts are respectively screwed into the steel sleeve 3-3 from the two ends of the steel sleeve 3-3. The inner wall of the steel sleeve 3-3 has an internal thread that matches the bolt.

[0018] The inner bottom surface and inner side surfaces of the flower bed 1 are coated with a 20-30 mm ECC waterproof layer.

[0019] The production method of the above-mentioned prestressed assembled 3D printed anti-seepage flower bed is as follows: 1. First, according to the cross-sectional shape, size, height and thickness of the flower bed 1 required by the design drawings, a number of basic units 2 are printed in the factory; 2. After being transported to the site, the several basic units 2 are assembled into a whole by hole to hole, and the steel cable 3-1 is passed through the arc channel formed by the reserved arc channel 3. The two ends of the steel cable 3-1 are respectively connected to the eye screws 3-2, and the ends of the eye screws 3-2 are screwed into the steel sleeves 3-3. According to the designed prestressed size, the knob is turned to the target relative displacement; 3. A 20-30mm thick ECC waterproof layer 8 is applied to the bottom and side walls of the flower bed 1, and the layer is smoothed, compacted, and cured to form.

[0020] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A prestressed assembled 3D printed anti-seepage flower bed, the flower bed is a special-shaped axisymmetric structure, the shape of the flower bed is a petal shape, a polygon or an irregular shape, the flower bed is divided into a number of basic units at the centroid according to the angle, the basic unit includes a bottom plate and a side plate, characterized in that: The bottom plate of the basic unit has a plurality of arc-shaped channels arranged at intervals near the two sides thereof, and the plurality of arc-shaped channels located on the same side of the bottom plate are arranged at intervals along the side of the bottom plate, and the two ends of each arc-shaped channel are respectively connected to the upper surface and the side of the bottom plate, and after two adjacent basic units are spliced, the arc-shaped channels on the contact surface correspond to each other one by one, and the corresponding two arc-shaped channels can be spliced ​​into a complete arc-shaped channel, and the two ends of the arc-shaped channel are respectively located on the upper surfaces of the adjacent bottom plates; Adjacent basic units are connected via steel cable units passing through the arc-shaped channels, and there is a one-to-one correspondence between the steel cable units and the arc-shaped channels.

2. The prestressed assembled 3D printed anti-seepage flower bed according to claim 1, characterized in that: The steel cable unit includes a steel cable, a steel sleeve and two eye bolts. The steel cable passes through the arc-shaped channel. The two ends of the steel cable extend from the upper surface of the base plates of two adjacent basic units respectively. The two ends of the steel cable are respectively connected to the eye bolts on the eye bolts. The bolt parts on the two eye bolts are respectively screwed into the steel sleeve from the two ends of the steel sleeve. The inner wall of the steel sleeve has an internal thread that matches the bolt.

3. The prestressed assembled 3D printed anti-seepage flower bed according to claim 1 or 2, characterized in that: The inner bottom surface and inner side surfaces of the flower bed are coated with a 20-30 mm ECC waterproof layer.

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