An active noise reduction type 3D printed concrete sound barrier structure
By combining the base, platform, barrier unit, and horizontal unit, the problem of heavy weight and high transportation cost of existing concrete sound barriers is solved. On-site 3D printing and horizontally consistent concrete barrier pouring are realized, reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU PROVINCIAL TRANSPORTATION ENGINEERING CONSTRUCTION BUREAU
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-03
AI Technical Summary
Existing concrete sound barriers need to be manufactured and processed in the factory and then transported to the site for assembly, resulting in heavy weight, inconvenience in loading and unloading, and increased transportation costs.
The system employs a combination structure of base, abutment, square piles, barrier units, and horizontal units. The concrete barrier is poured on-site using 3D printing equipment. Combined with limiting and pressing technologies, the top of the barrier is kept level, reducing processing steps.
It enabled the on-site pouring of 3D-printed concrete barriers, reducing production costs and improving the convenience of transportation and loading/unloading.
Smart Images

Figure CN224451443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of concrete sound barriers, and in particular to an active noise reduction type 3D printed concrete sound barrier structure. Background Technology
[0002] A concrete sound barrier is a building structure made primarily of concrete to reduce noise pollution. It is characterized by its durability, fire resistance, high noise reduction effect, and long service life. A 3D printed concrete sound barrier, on the other hand, is a sound barrier made primarily of concrete using 3D printing technology. First, data is extracted from a model created using specialized computer software. Then, the three-dimensional model is converted into a two-dimensional model through slicing. Next, the model is printed using path planning. Finally, through layering, the created model is transformed into an actual object.
[0003] 3D printing equipment consists of four parts: control system, XYZ motion system, extrusion system, and data control system. The control system is mainly used to control the coordinated operation between various devices. The XYZ system is used to receive instructions from the control system to control the horizontal and vertical movement of the devices. The feeding extrusion system consists of a screw pump, conveying pipes, extrusion nozzles, etc. Finally, the 3D printed concrete material is extruded from the molding machine.
[0004] Existing concrete sound barriers typically need to be prefabricated in a factory using 3D printing before being transported to the site for assembly. However, due to the material itself, they are heavy, making them inconvenient to load and unload and further increasing transportation costs. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] In view of the problems existing in the current active noise reduction type 3D printed concrete sound barrier structure, this utility model is proposed.
[0007] Therefore, the purpose of this utility model is to provide an active noise reduction type 3D printed concrete sound barrier structure, which solves the problem that "existing concrete sound barriers usually need to be pre-produced and processed in the factory and then transported to the site for assembly. However, due to the material itself, they are heavy, which not only makes loading and unloading inconvenient but also further increases transportation costs".
[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0009] An active noise reduction 3D-printed concrete sound barrier structure includes:
[0010] The base has several bearing platforms fixedly connected to its lower surface, and square piles are fixedly connected to the lower side of each bearing platform.
[0011] A barrier unit, which is disposed on the upper surface of the base, includes a concrete barrier for absorbing and blocking noise.
[0012] A horizontal element is disposed on the upper surface of the concrete barrier to ensure that the top of the concrete barrier is level.
[0013] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, the barrier unit includes multiple sets of columns fixed to the upper surface of the base, and each column has a groove on both sides, and the two sides of the concrete barrier are movably connected to the inner wall surface of the groove.
[0014] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, wherein: one side of each of the two adjacent sets of columns is movably connected to a connecting plate, and both ends of the connecting plate are fixedly connected to a fixing seat, and the lower surface of each set of fixing seats is movably connected to the upper end of the column.
[0015] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, each set of columns has two sets of screw holes and insertion holes at the upper end, and the two sets of screw holes and insertion holes are symmetrically arranged horizontally with respect to the center of the column.
[0016] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, each set of fixed seats is fixedly connected to a limiting rod on its lower side, and the surface of the limiting rod is movably connected to the inner wall surface of the insertion hole.
[0017] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, each set of fixing seats is internally threaded with a bolt, and the surface of the bolt is threadedly connected to the screw hole.
[0018] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, the horizontal unit includes a horizontal groove opened on one side of the connecting plate, and a top plate is movably connected inside the horizontal groove, and the lower surface of the top plate is tightly fitted with the concrete barrier.
[0019] As a preferred embodiment of the active noise reduction type 3D printed concrete sound barrier structure of this utility model, each set of top plates is internally threaded with two sets of bolts, and the surfaces of the bolts are threadedly connected to the connecting plate.
[0020] The beneficial effects of this utility model are:
[0021] The foundation and square piles are buried underground. Then, a concrete barrier is 3D printed and cast on the surface of the foundation using 3D printing equipment. The concrete barrier is then positioned by barrier units to ensure that the concrete barrier can be printed and cast, thus absorbing and blocking noise. Then, the top of the cast-in-place concrete barrier is pressed by horizontal units to ensure that the top of the concrete barrier is level. By casting the concrete barrier on-site using 3D printing, the processing steps of the concrete barrier are reduced, thereby reducing production costs. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:
[0023] Figure 1 The above is a three-dimensional structural diagram of an active noise reduction type 3D printed concrete sound barrier structure proposed in this utility model.
[0024] Figure 2 for Figure 1 A side view of the three-dimensional structure;
[0025] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0026] Figure 4 This is a bottom view of the three-dimensional structure of the horizontal unit.
[0027] In the diagram: 100, base; 101, foundation; 102, square pile; 200, barrier unit; 201, column; 202, vertical groove; 203, concrete barrier; 204, connecting plate; 205, bolt one; 206, bolt hole; 207, limit rod; 208, insertion hole; 209, fixing seat; 300, horizontal unit; 301, horizontal groove; 302, top plate; 303, bolt two. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0032] Example 1
[0033] Reference Figure 1-2 This is the first embodiment of the present invention, which provides an active noise reduction 3D printed concrete sound barrier structure, comprising:
[0034] The base 100 has several pile caps 101 fixedly connected to its lower surface, and square piles 102 are fixedly connected to the lower side of each pile cap 101.
[0035] Barrier unit 200 is disposed on the upper surface of base 100. Barrier unit 200 includes concrete barrier 203 for absorbing and blocking noise.
[0036] Horizontal unit 300 is set on the upper surface of concrete barrier 203 to ensure that the top of the printed concrete barrier 203 is level.
[0037] In use, the foundation 101 and square pile 102 are buried underground. Then, the concrete barrier 203 is 3D printed and cast on the surface of the base 100 using a 3D printing device. The barrier unit 200 limits the concrete barrier 203 so that it can complete the printing and casting process and absorb and block noise. Then, the top of the cast-in-place concrete barrier 203 is pressed by the horizontal unit 300 to make the top of the concrete barrier 203 level. By casting the concrete barrier 203 on-site, the processing steps of the concrete barrier 203 are reduced, thereby reducing production costs.
[0038] Example 2
[0039] Reference Figure 2-4 This is the second embodiment of the present invention. Unlike the previous embodiment, the barrier unit 200 includes multiple sets of columns 201 fixed to the upper surface of the base 100. Each column 201 has a groove 202 on both sides. The two sides of the concrete barrier 203 are movably connected to the inner wall surface of the groove 202. The concrete barrier 203 is cast on site. The interior of the concrete barrier 203 has a number of interconnected gaps. When a sound wave is incident on the surface, part of it is reflected and part of it penetrates into the interior and propagates forward. During the propagation, the air in the gaps moves and rubs against the solid ribs that form the hole walls. Due to viscosity and thermal conduction effects, the sound energy is converted into heat energy and consumed. After being reflected by the rigid wall, the sound wave returns to the surface through the interior of the material. Part of the sound wave returns to the air and part of it is reflected back into the interior of the material. This process repeats until equilibrium is reached, thus absorbing the sound energy.
[0040] Furthermore, a connecting plate 204 is movably connected to one side of each of the two adjacent sets of columns 201, and a fixing seat 209 is fixedly connected to both ends of the connecting plate 204. The lower surface of each fixing seat 209 is movably connected to the upper end of the column 201, thereby limiting the upper end of the two sets of columns 201.
[0041] Furthermore, each set of columns 201 has two sets of screw holes 206 and insertion holes 208 at its upper end, and the two sets of screw holes 206 and insertion holes 208 are horizontally symmetrically arranged with respect to the center of the column 201.
[0042] Furthermore, each set of fixing bases 209 is fixedly connected to a limiting rod 207 on its lower side, and the surface of the limiting rod 207 is movably connected to the inner wall surface of the insertion hole 208 to limit the fixing base 209.
[0043] Furthermore, each set of fixing seats 209 has a bolt 205 threaded inside, and the surface of the bolt 205 is threaded to the screw hole 206 to lock the fixing seat 209.
[0044] Furthermore, the horizontal unit 300 includes a transverse groove 301 formed on one side of the connecting plate 204, and a top plate 302 is movably connected inside the transverse groove 301. The lower surface of the top plate 302 is tightly fitted to the concrete barrier 203, and the top of the concrete barrier 203 is pressed by the top plate 302 to make the top of the concrete barrier 203 horizontal.
[0045] Furthermore, each set of top plates 302 has two sets of bolts 303 threaded inside, and the surfaces of the bolts 303 are threaded to the connecting plate 204 to fix the top plate 302.
[0046] In use, a concrete barrier 203 is 3D cast and printed on the surface of the base 100. The fixing seat 209 is then attached to the upper surface of the column 201, allowing the limiting rod 207, which is fixedly connected to the fixing seat 209, to be inserted into the insertion hole 208. Then, by twisting the bolt 205 inside the fixing seat 209, the bolt 205 is threaded and rotated into the screw hole 206, thus fixing the fixing seat 209 to the upper end of the column 201. The two sets of columns 201 are vertically aligned under the limiting position of the connecting plate 204. Then, the concrete barrier 203 is 3D printed and poured on-site between the two sets of columns 201 to absorb and block noise. Next, the top plate 302 is inserted into the transverse groove 301 to flatten the top of the concrete barrier 203. Then, the threads of the bolt 2 303 are turned to lock the top plate 302 and the connecting plate 204, so that the top of the concrete barrier 203 is level.
[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An active noise reduction type 3D printed concrete sound barrier structure, characterized by: include: A base (100) has a plurality of foundations (101) fixedly connected to its lower surface, and square piles (102) are fixedly connected to the lower side of each foundation (101). A barrier unit (200) is disposed on the upper surface of the base (100), and the barrier unit (200) includes a concrete barrier (203) for absorbing and blocking noise. A horizontal unit (300) is disposed on the upper surface of the concrete barrier (203) to ensure that the top of the concrete barrier (203) is level.
2. The active noise reduction type 3D printed concrete sound barrier structure according to claim 1, characterized in that: The barrier unit (200) includes multiple sets of columns (201) fixed to the upper surface of the base (100), and each column (201) has a groove (202) on both sides. The two sides of the concrete barrier (203) are movably connected to the inner wall surface of the groove (202).
3. The active noise reduction type 3D printed concrete sound barrier structure according to claim 2, characterized in that: Each of the two adjacent sets of columns (201) is movably connected to one side of a connecting plate (204), and both ends of the connecting plate (204) are fixedly connected to a fixing seat (209). The lower surface of each fixing seat (209) is movably connected to the upper end of the column (201).
4. The active noise reduction type 3D printed concrete sound barrier structure according to claim 3, characterized in that: Each set of columns (201) has two sets of screw holes (206) and insertion holes (208) at its upper end. The two sets of screw holes (206) and insertion holes (208) are arranged horizontally and symmetrically with respect to the center of the column (201).
5. The active noise reduction type 3D printed concrete sound barrier structure according to claim 4, characterized in that: Each set of fixed bases (209) is fixedly connected to a limiting rod (207) on its lower side, and the surface of the limiting rod (207) is movably connected to the inner wall surface of the socket (208).
6. The active noise reduction type 3D printed concrete sound barrier structure according to claim 5, characterized in that: Each of the aforementioned fixing bases (209) has a bolt (205) threaded inside, and the surface of the bolt (205) is threaded to the screw hole (206).
7. The active noise reduction type 3D printed concrete sound barrier structure according to claim 1, characterized in that: The horizontal unit (300) includes a transverse groove (301) formed on one side of the connecting plate (204), and a top plate (302) is movably connected inside the transverse groove (301), the lower surface of the top plate (302) being tightly fitted to the concrete barrier (203).
8. The active noise reduction type 3D printed concrete sound barrier structure according to claim 7, characterized in that: Each set of top plates (302) has two sets of bolts (303) threaded inside, and the surfaces of the bolts (303) are threaded to the connecting plate (204).