Core board connecting structure

Abstract

The utility model discloses a core plate connecting structure. Frames with hook bodies are arranged on the two sides of a core plate. When the adjacent core plates are connected, the hook body of one core plate and the hook body of the other core plate are oppositely arranged to define an embedding cavity for the hooking piece to be embedded, the hooking piece is inserted into the embedding cavity, connected with the two hook bodies in a hooked mode and limited by the embedding cavity, and therefore the adjacent core plates are connected into a whole. On one hand, 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 hook body, the hooking piece and the embedding cavity are matched, due to the interlocking characteristic of the hook body and the hooking piece and the wrapping property of the embedding cavity, the connection strength and connection stability between the core plates are greatly improved, the hooking piece is also difficult to fall off from the hook body under the condition that the core plates are subjected to a large load, and the service life of the core plates is prolonged. Therefore, movement or loosening between the core plates is effectively prevented.

Description

Technical Field

[0001] The utility model relates to a connection structure, in particular to a core plate connection structure. Background Art

[0002] The core panel is a super-strong and super-light panel, mainly including an upper panel, a lower panel and a sandwich layer between the two. The sandwich layer can be a honeycomb array, a hollow tube array arranged at intervals or a corrugated board array, etc. The core panel can be widely used in construction, roads and bridges, wind power, vehicles, ships, airplanes, vacuum tunnels and other fields.

[0003] Usually, the core panel is surrounded by a frame 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. The existing core panel connection methods mainly use bolt connection, such as setting a connector on the frame or directly opening a threaded hole, and then using a bolt assembly to connect the adjacent core panels into one. However, this connection method has the following main defects: (1) Bolt connection is relatively cumbersome, and the bolts need to be repeatedly tightened at the construction site. The length of the core panel is usually more than 10 meters. If multiple sets of bolts are set along the length, the on-site assembly will be time-consuming and laborious; (2) When adjacent core panels are connected by bolts, large gaps are likely to occur at the joints, thereby reducing the sealing of the core panel; (3) Under the action of long-term loads, the bolts of the core panel are prone to loosening or fatigue fracture.

[0004] Another way to connect core panels is to change the structure of the core panels, that is, to design the ends of the core panels into concave-convex structures, and match them with matching concave-convex frames, and to connect adjacent core panels in concave-convex connections, and even to glue or bolt them. However, this connection method has the following main defects: (1) The design and manufacture of core panels with concave-convex structures requires high-precision processing equipment and processes, which increases manufacturing costs and technical requirements; (2) After the concave-convex structure is snapped in, the connection stability is not high, especially in situations such as roads and bridges that are prone to large loads, 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 fatigue cracks, and still requires bolts or colloids for further reinforcement. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned deficiencies of the prior art and to provide a core plate connection structure with simple structure, quick installation and high connection reliability.

[0006] The technical solution of the utility model is: a core board connection structure, wherein two sides of the core board are provided with a frame with a hook body; when adjacent core boards are connected, the hook body of one core board is arranged relative to the hook body of another core board to enclose an embedding cavity for the hook connecting member to be embedded, and the hook connecting member is inserted into the embedding cavity and hooked with the two hook bodies and limited by the embedding cavity, so that the adjacent core boards are connected into one.

[0007] Furthermore, hooks are provided at both ends of the frame, and the hooks are formed by bending the ends of the frame toward the outside of the core board.

[0008] Furthermore, the cross-sectional shape of the hook member is U-shaped.

[0009] Furthermore, when the hook body of one core board is arranged opposite to the hook body of another core board, the two hook bodies are in close contact or there is a gap between them.

[0010] Furthermore, the cross-sectional shape of the embedding cavity is a heart-shaped or heart-shaped structure.

[0011] Furthermore, one vertical surface of the U-shaped hooking member is hooked with the hook body of one core board, and the other vertical surface is hooked with the hook body of another core board.

[0012] Furthermore, the hook body is formed by firstly bending the end of the frame obliquely toward the core sandwich layer, then bending upward, and finally bending toward the outer side of the core into a hook shape.

[0013] Furthermore, the frame is connected between the upper panel and the lower panel of the core board; the core board is provided with frames all around, and at least two frames arranged opposite to each other are the frames with hooks.

[0014] Furthermore, the frame is connected to the upper panel and the lower panel of the core plate by at least one of brazing and resistance welding.

[0015] The beneficial effects of the utility model are as follows: on the one hand, by providing a frame with a hook body, 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 structure with a hook body. The structure is simple, and there is no need to provide 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 matching the hook body, the hook member, and the embedded cavity, due to the interlocking characteristics of the hook body and the hook member and the wrapping of the embedded cavity, the connection strength and connection stability between the core boards are greatly improved, and even when subjected to a large load, the hook member is difficult to fall off from the hook body, thereby effectively preventing movement or loosening between the core boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

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

[0018] Description of the accompanying drawings:

[0019] 1. Core board; 2. Frame; 3. Hook piece; 4. Embedded cavity; 11. Upper panel; 12. Lower panel; 13. Hollow tube; 21. Hook body. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 and Figure 2 As shown: a core board connection structure, the two sides of the core board 1 are provided with a frame 2 with a hook body 21; when adjacent core boards 1 are connected, the hook body 21 of one core board is arranged opposite to the hook body 21 of another core board to enclose an embedding cavity 4 for the hook member 3 to be embedded, and the hook member 3 is inserted into the embedding cavity 4 and hooked with the two hook bodies 21 and limited by the embedding cavity 4, so that the adjacent core boards 1 are connected as a whole.

[0022] Specifically, the core panel 1 of the present embodiment includes an upper panel 11, a lower panel 12 and a sandwich layer arranged therebetween. The sandwich layer can be a honeycomb layer, a core tube array or a corrugated layer, etc. The present embodiment is preferably a core tube array, that is, the sandwich layer includes a plurality of hollow tubes 13 arranged at intervals, and the upper and lower ends of the hollow tubes are flanged and brazed to the upper and lower panels. The core panel is surrounded by a frame for protecting the sandwich layer. According to the connection requirements, at least the two frames arranged relatively on the core panel are frames with hooks. In the present embodiment, the frame in the length direction of the core panel is preferably designed as a frame with a hook, and the frame in the width direction is designed as an ordinary frame. The reason for this design is that when adjacent core panels are connected along the length direction, if bolts are used for connection, multiple sets of bolts need to be set along the length direction, which is time-consuming, labor-intensive and increases costs. Therefore, it is sufficient to directly hook through the frame with a hook, which greatly improves the assembly efficiency and saves bolts.

[0023] In this embodiment, hook bodies 21 are provided at both ends of the frame 2, and the hook bodies 21 are formed by bending the ends of the frame toward the outer side of the core board. Specifically, the hook body 21 is formed by first bending the ends of the frame obliquely toward the direction of the core board sandwich layer, then bending upward along the hypotenuse, and finally bending into a hook shape toward the outer side of the core board. In this way, when two adjacent core boards 1 are connected, the frames of the two with hook bodies 21 are aligned. At this time, the hook body 21 of one core board and the hook body 21 of the other core board are just oppositely arranged to enclose an embedded cavity 4, and the cross-sectional shape of the embedded cavity 4 is a heart-shaped or heart-shaped structure, that is, like the shape of a heart. The heart-shaped structure refers to a structure that is approximately heart-shaped, for example, the sections extending from the ends of the frame are straight-line, and the section that bends along the straight line toward the outer side of the core board is a curved surface, forming a hook shape.

[0024] In this embodiment, when the hook body of one core board is arranged opposite to the hook body of another core board, the two hook bodies are in close contact or there is a gap between them.

[0025] In this embodiment, the cross-sectional shape of the hook member 3 is U-shaped, one vertical surface of the U-shaped hook member 3 is hooked with the hook body 21 of one core board, and the other vertical surface is hooked with the hook body 21 of the other core board, and the embedded cavity 4 can limit the hook member 3 to prevent it from loosening. That is, the two vertical surfaces of the U-shaped hook member just hook with the hook bodies of the two core boards, and the gap at the closing of the embedded cavity is much smaller than the bottom surface size of the U-shaped hook member, so that the hook member can be accommodated in the embedded cavity to limit the hook member.

[0026] In this embodiment, both the ordinary frame and the frame with hooks are arranged between the upper panel 11 and the lower panel 12 of the core plate, and are brazed and connected to the upper and lower panels by brazing material.

[0027] The core plate connection structure of this embodiment is particularly suitable for structures such as road panels or bottom plates of roads and bridges, and is not easy to loosen even under heavy loads. For example, this embodiment is explained by taking the road panel of a bridge as an example: the road panel is formed by horizontal splicing of several core plates, that is, the adjacent core plates are spliced ​​along the length surface, and the length surface of the core plate is provided with a frame with a hook body. The size of the core plate is designed to be 12 meters long and 2 meters wide. During installation, the frames with hook bodies of each adjacent core plate are first aligned, that is, the upper panel of one core plate is aligned with the upper panel of another core plate, and the lower panel is also aligned in the same way, so that the frames with hook bodies between the two can be ensured to be aligned, so that the relatively arranged hook bodies are enclosed to form an embedded cavity, and then the U-shaped hook connector is inserted from one end of the embedded cavity and extended to the other end of the embedded cavity. At this time, the hook connector can just be hooked with the two hook bodies to form an interlocking structure, and the hook connector is contained by the embedded cavity. In this way, no matter whether adjacent core plates are subjected to lateral or longitudinal forces, the hooking parts will not be separated from the hook bodies, which greatly improves the stability and safety of the road panels, omits the tedious installation of bolts, saves time and effort in assembly, and greatly shortens the construction period.

[0028] To sum up, on the one hand, the utility model provides a frame with a hook body, 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 structure with a hook body to achieve quick assembly. 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 matching the hook body, the hook member, and the embedded cavity, the connection strength and connection stability between the core boards are greatly improved due to the interlocking characteristics of the hook body and the hook member and the wrapping of the embedded cavity. In addition, when subjected to a large load, the hook member is also difficult to fall off from the hook body, thereby effectively preventing the core boards from moving or loosening, and there is almost no gap between adjacent core boards after insertion, which greatly improves the sealing.

Claims

1. A core plate connection structure, characterized in that: The core board is provided with a frame with a hook body on both sides; when adjacent core boards are connected, the hook body of one core board is arranged relative to the hook body of another core board to enclose an embedding cavity for the hook connecting piece to be embedded, and the hook connecting piece is inserted into the embedding cavity and hooked with the two hook bodies and limited by the embedding cavity, so that the adjacent core boards are connected as one.

2. The core plate connection structure according to claim 1, characterized in that: Hooks are provided at both ends of the frame, and the hooks are formed by bending the ends of the frame toward the outer side of the core board.

3. The core plate connection structure according to claim 1, characterized in that: The cross-sectional shape of the hook member is U-shaped.

4. The core plate connection structure according to claim 1, characterized in that: When the hook body of one core plate is arranged opposite to the hook body of another core plate, the two hook bodies are in close contact or have a gap therebetween.

5. The core plate connection structure according to claim 1, characterized in that: The cross-sectional shape of the embedding cavity is a heart-shaped or heart-shaped structure.

6. The core plate connection structure according to claim 3, characterized in that: One vertical surface of the U-shaped hooking member is hooked with the hook body of one core board, and the other vertical surface is hooked with the hook body of another core board.

7. The core plate connection structure according to claim 2, characterized in that: The hook body is formed by firstly bending the end of the frame obliquely toward the core sandwich layer, then bending upward, and finally bending toward the outer side of the core into a hook shape.

8. The core plate connection structure according to claim 1, characterized in that: The frame is connected between the upper panel and the lower panel of the core board; the core board is provided with frames all around, and at least two frames arranged opposite to each other are the frames with hooks.

9. The core plate connection structure according to claim 8, characterized in that: The frame is connected to the upper panel and the lower panel of the core plate by at least one of brazing and resistance welding.

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