Core board structure with hooked frame

Abstract

The utility model discloses a core board structure with hooked frames. Male and female groove frames are arranged on the two sides of a core board; and the adjacent core plates are connected into a whole through the male and female groove frames. On one hand, the structure of an original core plate does not need to be changed, rapid assembly can be achieved only by designing the frame connected with the core plate into a whole into a male and female groove structure, the structure is simple, additional connecting assemblies do not need to be arranged on the core plate, and equivalently, connection can be achieved through the core plate; and on the other hand, the connection strength and the connection stability can be greatly improved, and the outer hook is also difficult to fall off from the inner hook under the condition of larger load, so that the core plates are effectively prevented from moving or loosening.

Description

Technical Field

[0001] The utility model relates to a core board, in particular to a core board structure with a hook frame. Background Art

[0002] The core board is a super-strong and super-light board, mainly including the upper panel, the lower panel and the sandwich layer between the two. The sandwich layer can be a honeycomb array, a hollow tube array or a corrugated board array, etc. The core board can be widely used in the fields of construction, roads and bridges, wind power, vehicles, ships, airplanes, vacuum tunnels, etc. In particular, Yuanda's core board technology is composed of a number of round tubes to form a sandwich layer. Through copper brazing, the upper and lower panels are connected into a solid whole. The round tube can be extremely thin, making the core board have multiple properties such as super strength, super lightness, durability, and material saving.

[0003] Usually, a frame is provided around the core panel to seal the sandwich layer. When the core panel is used in the fields of construction, roads and bridges, adjacent core panels need to be spliced ​​to form a larger core panel. One existing connection method between core panels is to set a connector on the frame or directly open a threaded hole, and then use a bolt assembly to connect the adjacent core panels together. However, this connection method has the following main defects: (1) Under long-term load, the bolt connection is prone to loosening or bolt fatigue fracture; (2) There may be a small gap at the bolt connection point, which will reduce the sealing of the core panel; (3) The installation and maintenance of the bolt connection requires high manpower and time costs. Another connection method between core panels is to set a concave and convex structure at the connection of the core panel, and match it with an appropriate concave and convex frame, and perform concave and convex plug-in between adjacent core panels, and even glue or bolt fixation. However, this connection method has the following main defects: (1) The design and manufacture of the core plate of the convex-concave structure requires high-precision processing equipment and processes, which increases the manufacturing cost and technical requirements; (2) After the concave-convex structure is clamped, the connection stability is not high, especially in situations where it is prone to large loads such as roads and bridges, it is easy to cause stress concentration at the connection, especially at the junction of the groove and the bulge, which is easy to cause the formation of fatigue cracks, and still requires bolts or colloids for further reinforcement. Summary of the invention

[0004] The utility model aims to overcome the above-mentioned deficiencies of the prior art and to provide a core plate structure with a hook frame which has a simple structure, quick installation and high connection reliability.

[0005] The technical solution of the utility model is: a core plate structure with hook frames, both sides of the core plate are provided with male and female groove frames, so that adjacent core plates are connected as a whole through the male and female groove frames.

[0006] Furthermore, the mother frame located on one side of the core board is formed by bending both ends of the frame inward to form two inner hooks.

[0007] Furthermore, the male frame located on the other side of the core board is formed by two outer hooks extending outwardly along the outer wall of the frame and being bent outward.

[0008] Furthermore, the inner hook width of the female frame is greater than the outer hook width of the male frame.

[0009] Furthermore, the male and female groove frames are provided with solder at the connection with the core plate, and the male and female groove frames are connected to the core plate by brazing.

[0010] Furthermore, the outer edges of the male and female groove frames are sealed by surfacing welding or gluing.

[0011] Furthermore, the panel body of the female frame is pressed into a bent structure; and a protrusion is provided on the panel body of the male frame.

[0012] Furthermore, adjacent core boards are connected in sequence through male and female groove frames to form an expandable core board array.

[0013] Furthermore, the panel body of the mother frame is bent into a corrugated structure, and the upper and lower ends of the corrugated structure form inner hooks, and the inner hooks are in a J shape.

[0014] Furthermore, the protrusion on the male frame faces the inner cavity of the core board, and the height of the protrusion is 5-15 mm.

[0015] The beneficial effects of the utility model are as follows: on the one hand, by setting the male and female groove frame, there is no need to change the structure of the original core board, and quick assembly can be achieved by simply designing the frame connected to the core board into a male and female groove structure. The structure is simple, and there is no need to set additional connecting components on the core board, which is equivalent to the core board itself being able to achieve connection; on the other hand, by adopting the hooking method of the inner hook and the outer hook for connection, the interlocking characteristics of the inner and outer hooks greatly improve the connection strength and connection stability, and under the condition of a large load, the outer hook is also difficult to fall off from the inner hook, thereby effectively preventing the core boards from moving or loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the core plate with male and female groove frames according to an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 An enlarged schematic diagram of part I of the illustrated embodiment;

[0018] Figure 3 yes Figure 1 An enlarged schematic diagram of part II of the illustrated embodiment;

[0019] Figure 4 yes Figure 1 An enlarged schematic diagram of part III of the illustrated embodiment.

[0020] Description of the accompanying drawings:

[0021] 1. Core board; 2. Male frame; 3. Female frame; 4. Solder; 11. Upper panel; 12. Lower panel; 13. Hollow tube; 21. Outer hook; 22. Protrusion; 23. Edge; 31. Inner hook; 32. Panel body. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1~Figure 4 As shown: a core board structure with a hook frame, male and female groove frames are provided on both sides of the core board 1; so that adjacent core boards 1 are connected as a whole through the male and female groove frames.

[0024] In this embodiment, the two sides of the core board 1 can be the two sides along the length direction of the core board, or the two sides along the width direction, but they must be the two sides arranged oppositely, so as to facilitate the connection between adjacent core boards arranged in the same direction. It can be understood that the sides of the core board in the width direction and the length direction of this embodiment are provided with frames, wherein the two side frames arranged oppositely are designed as male and female groove frames, that is, one side is a male frame 2, and the other side is a female frame 3. When adjacent core boards 1 are spliced, it is only necessary to connect the male frame 2 of one core board with the female frame 3 of another core board.

[0025] The above scheme has the following advantages: (1) This embodiment does not require improvement of the structure of the core board, that is, it is not necessary to design the core board structure itself into a male and female groove structure as in the prior art, but only designs the frame into a male and female groove structure, which is simple in structure and easy to assemble; (2) When the male and female groove frame is connected to the core board, it forms a whole with the core board. When the core boards are transported to the site for splicing, it is only necessary to hook the adjacent core boards together, which greatly simplifies the assembly procedure and does not require additional connection components to be set on the core board.

[0026] In this embodiment, the core plate 1 specifically includes an upper panel 11, a lower panel 12 and a sandwich layer disposed therebetween, and the sandwich layer is preferably designed as a hollow tube array consisting of a plurality of hollow tubes 13 arranged at intervals. The upper and lower ends of the hollow tubes are flanged, and the flanges are brazed and connected to the upper and lower panels through a brazing material 4.

[0027] In this embodiment, the female frame 3 located on one side of the core board is formed by bending the two ends of the frame inward to form two inner hooks 31, and the male frame 2 located on the other side of the core board is formed by extending and bending outward along the outer wall of the frame. When the adjacent core boards are connected, it is only necessary to hook the outer hook 21 on the inner hook 31. Compared with the existing concave-convex structure clamping, the preparation cost is low and the connection stability is strong, and no additional bolt assembly is required for further reinforcement. Because the design of the inner hook and the outer hook in this embodiment makes the connection of the core board tighter, on the one hand, the mutual hooking of the inner hook and the outer hook forms a structure combining inside and outside, which increases the contact area and stability of the connection. Even if the matching accuracy is slightly deviated, due to the interlocking characteristics of the inner and outer hooks, it can provide a strong fixing force; although the use of the concave-convex structure in the prior art also increases the contact area, its stability is highly dependent on the matching accuracy of the clamping part. If the matching of the concave-convex structure is not accurate, it is easy to cause loosening or separation of the connection. On the other hand, when the outer hook hooks the inner hook, a connection that is relatively difficult to disengage will be formed. Under the action of external force, the outer hook is not easy to fall off from the inner hook, thereby effectively preventing the movement or separation between the core plates. This embodiment is particularly suitable for splicing core plates for road panels of roads and bridges, and it is not easy to loosen even under a large load.

[0028] In the present embodiment, the connection mode of adjacent core plates 1 is: align the male frame 2 of one core plate with one end of the female frame 3 of another core plate, then insert the two outer hooks 21 of the male frame 2 into the inner hook groove formed by the two inner hooks 31 of the female frame, and extend to the other end of the female frame 3 until the other end is reached to complete the plug-in. Moreover, there is almost no gap between the adjacent core plates after the plug-in, which greatly improves the sealing performance. The core plates are connected in sequence in the above manner to form an expandable core plate array, which is flexible in combination.

[0029] In this embodiment, the width of the inner hook 31 of the female frame 3 is greater than the width of the outer hook of the male frame 2, so that it can be ensured that when connected, the outer hook can be quickly inserted into the inner hook, and the inner hook can completely cover the outer hook to form a tighter fit, effectively preventing the connection from being loosened or failing due to insufficient width or offset of the outer hook; and the inner hook width is greater than the outer hook width to improve the tensile strength of the connection, that is, when subjected to tension, the width of the inner hook can share a larger tensile force, reducing the risk of damage or loosening caused by excessive local stress. Among them, the inner hook width and the outer hook width refer to the width of the bend, for example, an inner hook is bent downward, and the corresponding outer hook is bent upward, and the width of each bend is the inner hook width or the outer hook width.

[0030] In this embodiment, the panel body 32 of the mother frame 3 is pressed into a bent structure, and the panel body 32 is the main panel part of the mother frame, and the inner hook 31 is bent along the two ends of the panel body 32. The panel body 32 of this embodiment is designed to be a bent structure in order to strengthen the strength of the entire mother frame, so that the mother frame 3 can be more stable and strong when subjected to external loads, and reduce the deformation and deflection of the panel body when bending or under stress. In this embodiment, the panel body 32 of the mother frame is preferably bent into a corrugated structure, and the corrugated structure is bent in the direction of the sandwich layer, and the inner hook 31 is bent in the direction away from the sandwich layer, and a J-shape is formed between the inner hook 31 and the end of the corrugated structure. This structure in which the inner hook is bent in the opposite direction to the corrugated structure can further improve the strength of the entire mother frame, so that the entire mother frame can be more evenly distributed when facing external loads.

[0031] In this embodiment, at least one protrusion 22 arranged along the length direction of the panel body is provided in the middle of the panel body of the male frame 2, and the protrusion 22 is provided on the inner wall of the panel body, and the outer hook 21 is provided on the outer wall. By providing the protrusion 22, the strength of the entire male frame can be strengthened. Since the outer hook 21 needs to be provided on the outer wall of the male frame, it is not convenient to bend the panel body, but the strength is improved by the protrusion. The height of the protrusion 22 is 5~15mm, and more preferably 6~10mm. The protrusion is not easy to be too high, and it can be slightly convex for easy processing.

[0032] In this embodiment, the male frame 2 and the female frame 3 are respectively provided with brazing material 4 at the connection with the core board 1, so that each frame is brazed to the core board, and the connection strength between the core board and the frame can be greatly improved by brazing. Among them, the female frame 3 is brazed to the panel of the core board 1 through the inner hook 31, and the panel body of the male frame 2 is provided with a bent edge 23 at both ends, and the male frame is brazed to the panel of the core board 1 through the edge 23. The outer edges of the male frame 2 and the female frame 3 are sealed by surfacing or gluing to improve the sealing between the frame and the core board to prevent water or dust from entering the sandwich layer.

[0033] To summarize, on the one hand, this embodiment provides a male and female groove frame, and there is no need to change the structure of the original core board. It only needs to design the frame connected to the core board into a male and female groove structure to achieve quick assembly. The structure is simple, and there is no need to set additional connection components on the core board, which is equivalent to the core board itself being able to achieve connection. On the other hand, the connection is made by using an inner hook and an outer hook. Due to the interlocking characteristics of the inner and outer hooks, the connection strength and connection stability are greatly improved. In addition, when subjected to a large load, the outer hook is difficult to fall off from the inner hook, thereby effectively preventing the core boards from moving or loosening.

Claims

1. A core board structure with a hook frame, characterized in that: The core board is provided with male and female groove frames on both sides; the adjacent core boards are connected as a whole through the male and female groove frames; the female frame located on one side of the core board is composed of two inner hooks formed by bending the two ends of the frame inward; the male frame located on the other side of the core board is composed of two outer hooks extending outward and bent along the outer wall of the frame.

2. The core board structure with hook frame according to claim 1, characterized in that: The inner hook width of the female frame is greater than the outer hook width of the male frame.

3. The core board structure with hook frame according to claim 1 or 2, characterized in that: The male and female groove frames are provided with solder at the connection positions with the core plate, and the male and female groove frames are connected with the core plate by brazing.

4. The core board structure with hook frame according to claim 3, characterized in that: The outer edges of the male and female groove frames are sealed by surfacing welding or gluing.

5. The core board structure with hook frame according to claim 1 or 2, characterized in that: The panel body of the female frame is pressed into a bent structure; and a protrusion is arranged on the panel body of the male frame.

6. The core board structure with hook frame according to claim 1 or 2, characterized in that: Adjacent core boards are connected in sequence through male and female groove frames to form an expandable core board array.

7. The core board structure with hook frame according to claim 5, characterized in that: The panel body of the mother frame is bent into a corrugated structure, and the upper and lower ends of the corrugated structure form inner hooks, which are in a J shape.

8. The core board structure with hook frame according to claim 5, characterized in that: The protrusion on the male frame faces the inner cavity of the core board, and the height of the protrusion is 5-15 mm.

Images