Concrete test piece demolding device
By designing a concrete specimen demolding device, which utilizes a frame and elastic rope mesh for buffer protection, the problems of time-consuming, labor-intensive demolding methods and specimen damage are solved, achieving an efficient and low-cost demolding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 云南建投第四建设有限公司
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing methods for demolding concrete specimens are time-consuming, labor-intensive, and prone to damaging the specimens, while mechanical demolding equipment is costly.
A concrete specimen demolding device was designed, including a frame, support columns, limiting columns and arc-shaped guide rails. The mold and specimen are separated by flipping and vibration, and the integrity of the specimen is protected by elastic rope mesh buffer.
It achieves a time-saving and labor-saving demolding process, protects the integrity of concrete specimens, and reduces equipment costs.
Smart Images
Figure CN224144970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete specimen preparation technology, and more specifically, to a concrete specimen demolding device. Background Technology
[0002] Concrete specimens are small models made by sampling concrete at the construction site. They are used to scientifically evaluate the mechanical properties, durability, and construction quality of concrete and are a core testing method to ensure the safety of engineering structures.
[0003] Concrete specimens are typically prepared into cubic shapes of specific lengths. During preparation, concrete grout is poured into molds of a specific shape, and the specimens are demolded after solidification. Current demolding methods rely on manual labor to pour the concrete blocks directly from the molds, or the use of mechanical equipment. Manual demolding is not only time-consuming and labor-intensive, but also prone to damaging the edges and corners of the specimens; while mechanical demolding is more efficient, it increases the costs of purchasing and maintaining the equipment. Utility Model Content
[0004] The purpose of this utility model is to provide a concrete specimen demolding device with a novel structure and convenient operation. It can assist manual demolding, achieving the purpose of saving time and labor, and can protect the integrity of the concrete specimen.
[0005] The embodiments of this utility model are implemented as follows:
[0006] A concrete specimen demolding device includes a frame, with multiple support columns at the bottom of the frame, the support columns being arranged along the height direction of the frame and the multiple support columns being spaced apart along the edge of the frame; each support column is provided with a hook, the hook being located in the lower middle position of the support column; and multiple limiting columns are provided at the top of the frame, the limiting columns being arranged along the height direction of the frame and the multiple limiting columns being spaced apart along the outer edge of the frame.
[0007] Furthermore, in other preferred embodiments of this utility model, the frame is a square frame, and the number of support columns is four, with the four support columns located at the four corners of the frame respectively.
[0008] Furthermore, in other preferred embodiments of this utility model, a plurality of limiting posts are distributed on the four sides of the frame, and at least one limiting post is provided on each side.
[0009] Furthermore, in other preferred embodiments of this utility model, the heights of the limiting column and the supporting column are both equivalent to the height of the concrete specimen.
[0010] Furthermore, in other preferred embodiments of this utility model, a pair of fixing columns are provided at the top of the frame, and the fixing columns are arranged along the height direction of the frame; the frame includes a first long side and a second long side arranged opposite to each other, and the pair of fixing columns are respectively arranged at both ends of the first long side; the concrete specimen demolding device is also provided with a pair of arc-shaped guide rails, the arc-shaped guide rails start from the top of the fixing column, extend to the outside of the frame, and end at the bottom of the support column on the same side as the fixing column; the axis of the arc-shaped guide rails is arranged along the length direction of the first long side.
[0011] Furthermore, in other preferred embodiments of this utility model, the height of the fixed column is equivalent to the height of the concrete specimen, and the radius of the arc-shaped guide rail is equivalent to the height of the concrete specimen.
[0012] Furthermore, in other preferred embodiments of this utility model, each arc-shaped guide rail is provided with at least one reinforcing rib, one end of which is connected to the inner side of the arc-shaped guide rail, and the other end is connected to the first long side.
[0013] Furthermore, in other preferred embodiments of this utility model, the hook is located at 1 / 4 to 1 / 3 of the lower part of the support column.
[0014] The beneficial effects of this utility model embodiment are:
[0015] This utility model provides a concrete specimen demolding device, which includes a frame with multiple support columns at the bottom and multiple limiting columns at the top. During demolding, the limiting columns are positioned with one side facing down, fixing the mold between them. The device is then flipped so the top of the mold faces down. With manual vibration, the concrete specimen loosens from the mold, sliding off the frame under gravity and separating from the mold. Simultaneously, each support column is equipped with a hook to secure elastic ropes. During demolding, these ropes interweave to form a mesh below the concrete specimen, cushioning the sliding specimen and protecting its integrity. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of a concrete specimen demolding device provided in an embodiment of this utility model;
[0018] Figure 2This is a schematic diagram of the assembly of a concrete specimen demolding device and a mold provided in an embodiment of the present invention.
[0019] Figure 3 This is a schematic diagram illustrating the demolding operation of a concrete specimen demolding device provided in an embodiment of the present invention.
[0020] Icons: 100-Concrete specimen demolding device; 110-Frame; 111-First long side; 112-Second long side; 120-Support column; 121-Hook; 130-Limiting column; 140-Fixing column; 150-Arc-shaped guide rail; 151-Reinforcing rib; 200-Mold; 300-Concrete specimen. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example
[0026] This embodiment provides a concrete specimen demolding device 100, referring to... Figure 1 As shown, it includes a frame 110, with multiple support columns 120 at the bottom of the frame 110, the support columns 120 being arranged along the height direction of the frame 110, and the multiple support columns 120 being spaced apart along the edge of the frame 110; and multiple limiting columns 130 at the top of the frame 110, the limiting columns 130 being arranged along the height direction of the frame 110, and the multiple limiting columns 130 being spaced apart along the outer edge of the frame 110.
[0027] Each support column 120 is equipped with a hook 121, which is located in the lower middle position of the support column 120. The hook 121 is used to fix the elastic rope (not shown in the figure). During demolding, the elastic rope is interlaced to form a net below the concrete specimen 300, which plays a buffering role for the slipping concrete specimen 300 and protects the integrity of the concrete specimen 300.
[0028] Furthermore, typically, to accommodate the shape of the concrete specimen 300, the frame 110 is a square, and there are four support columns 120, located at the four corners of the frame 110. It is worth noting that if the concrete specimen 300 is cylindrical or other shapes, the shape of the frame 110 can be adjusted accordingly, with no difference in basic principle.
[0029] like Figure 1As shown, multiple limiting posts 130 are distributed on the four sides of the frame, with at least one limiting post 130 on each side. In this embodiment, the frame has two long sides and two short sides, with one limiting post 130 on each short side, located at the midpoint of the short side. Two limiting posts 130 are provided on each long side, located at the two one-third points of the long side. A total of six limiting posts 130 can form a stable and precise limiting around the mold 200. The diameter of the limiting post 130 is smaller than the width of the long and short sides, leaving a certain space between the limiting post 130 and the inner edge of the frame 110. The top of the mold 200 is provided with a demolding opening. The space between the limiting post 130 and the inner edge of the frame 110 is used to support the edge of the demolding opening, trapping the mold 200, while allowing the concrete specimen 300 inside the mold 200 to pass through the frame 110 to complete demolding.
[0030] Furthermore, the heights of both the limiting post 130 and the supporting post 120 are comparable to the height of the concrete specimen 300. At this height, the limiting post 130 can better limit the mold 200 and prevent it from falling off.
[0031] like Figure 1 As shown, a pair of fixing posts 140 are provided at the top of the frame 110, and the fixing posts 140 are arranged along the height direction of the frame 110. The frame 110 includes a first long side 111 and a second long side 112 arranged opposite to each other, and the pair of fixing posts 140 are respectively located at both ends of the first long side 111. The concrete specimen demolding device 100 is also provided with a pair of arc-shaped guide rails 150, which start from the top of the fixing posts 140, extend outward from the frame 110, and end at the bottom of the support post 120 on the same side as the fixing posts 140. The axis of the arc-shaped guide rails 150 is arranged along the length direction of the first long side 111. The arc-shaped guide rails 150 can play a supporting and guiding role during the flipping process of the concrete specimen demolding device 100. Without the use of arc-shaped guide rails 150, the concrete specimen demolding device 100 needs to be suspended in the air to complete the flipping action, which is more laborious. Guided by the curved guide rail 150, the flipping can be completed without being suspended in the air, which saves more time and effort.
[0032] Furthermore, the height of the fixed column 140 is approximately the same as the height of the concrete specimen 300, and the radius of the curved guide rail 150 is approximately the same as the height of the concrete specimen 300. This size configuration allows for a smoother flipping process.
[0033] Each arc-shaped guide rail 150 is provided with at least one reinforcing rib 151. One end of the reinforcing rib 151 is connected to the inner side of the arc-shaped guide rail 150, and the other end is connected to the first long side 111. The reinforcing rib 151 can improve the strength of the arc-shaped guide rail 150 and extend its service life.
[0034] Furthermore, hook 121 is located at 1 / 4 to 1 / 3 of the height below support column 120. At this height, the overall cushioning capacity can be changed by adjusting the number of elastic ropes, providing cushioning while allowing the concrete specimen 300 to fall smoothly to the ground.
[0035] The operation process of the concrete specimen demolding device 100 is as follows:
[0036] S1. Flip the concrete specimen demolding device 100 degrees, as follows: Figure 2 As shown, the limiting posts 130 are positioned downwards and fall from above the mold 200, causing the limiting posts 130 to be locked around the mold 200.
[0037] S2. Flip the concrete specimen demolding device 100 again, allowing it to flip along the arc-shaped guide rail 150 so that the limiting column 130 faces upward and the support column 120 faces downward, forming... Figure 3 The state.
[0038] S3. Vibrate the concrete specimen demolding device 100 by hand, or use a wooden hammer to tap it to assist in demolding. During vibration, the arc-shaped guide rail 150 can be used as a handle for easy gripping.
[0039] S4. After the concrete specimen 300 and the mold 200 are separated, the concrete specimen 300 passes through the frame 110 and comes into contact with the elastic rope below. With the cushioning of the elastic rope, it lands smoothly.
[0040] In summary, this utility model embodiment provides a concrete specimen demolding device 100, which includes a frame 110. Multiple support columns 120 are provided at the bottom of the frame 110, and multiple limiting columns 130 are provided at the top. During demolding, one side of the limiting columns 130 faces downwards, allowing the mold 200 to be fixed between the multiple limiting columns 130 and the fixing column 140. Then, the concrete specimen demolding device 100 is flipped so that the top of the mold 200 faces downwards. Under artificial vibration, the concrete specimen 300 loosens from the mold 200, and the concrete specimen 300 slides down from the middle of the frame 110 under gravity, achieving separation from the mold 200. Simultaneously, each support column 120 is provided with a hook 121 for fixing elastic ropes. During demolding, the elastic ropes interweave to form a mesh below the concrete specimen 300, providing a cushioning effect for the sliding concrete specimen 300 and protecting its integrity.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A concrete specimen demolding device, characterized in that, The device includes a frame, with multiple support columns at the bottom of the frame, the support columns being arranged along the height direction of the frame and spaced apart along the edges of the frame; each support column is provided with a hook, the hook being located in the lower middle position of the support column; and multiple limiting columns are provided at the top of the frame, the limiting columns being arranged along the height direction of the frame and spaced apart along the outer edges of the frame.
2. The concrete test piece demolding apparatus according to claim 1, characterized by The frame is a square frame, and there are four support columns, which are located at the four corners of the frame.
3. The concrete test piece demolding apparatus according to claim 2, characterized by Multiple limiting posts are distributed on the four sides of the frame, and at least one limiting post is provided on each side.
4. The concrete test piece demolding apparatus according to claim 3, characterized by The heights of the limiting column and the supporting column are both comparable to the height of the concrete specimen.
5. The concrete test piece demolding apparatus according to claim 4, characterized by A pair of fixed posts are provided at the top of the frame, and the fixed posts are arranged along the height direction of the frame; the frame includes a first long side and a second long side arranged opposite to each other, and the pair of fixed posts are respectively arranged at both ends of the first long side; the concrete specimen demolding device is also provided with a pair of arc-shaped guide rails, the arc-shaped guide rails start from the top of the fixed posts, extend outward to the outside of the frame, and end at the bottom of the support post on the same side as the fixed posts; the axis of the arc-shaped guide rails is arranged along the length direction of the first long side.
6. The concrete test piece demolding apparatus according to claim 5, wherein The height of the fixed column is approximately equal to the height of the concrete specimen, and the radius of the arc-shaped guide rail is approximately equal to the height of the concrete specimen.
7. The concrete test piece demolding apparatus according to claim 6, characterized by Each of the arc-shaped guide rails is provided with at least one reinforcing rib, one end of which is connected to the inner side of the arc-shaped guide rail, and the other end is connected to the first long side.
8. The concrete test piece demolding apparatus according to claim 7, characterized by The hook is located at 1 / 4 to 1 / 3 of the distance from the bottom of the support column.