Fabricated building quick connection node structure

Abstract

The utility model relates to the technical field of assembly type buildings, in particular to an assembly type building quick connection node structure which comprises a first wall body and a second wall body which are in butt joint with each other, an insertion hole is formed in the butt joint face of the first wall body, an insertion block is arranged on the butt joint face of the second wall body, and the insertion block carries a clamping block to be inserted into the insertion hole. The clamping block extrudes the first limiting block and the second limiting block towards the two sides, an opening between the ends of the two limiting blocks is enlarged, the clamping block penetrates through the opening and enters the guide cavity till the outer wall of the clamping block is attached to the arc-shaped inner wall of the limiting block, and the spring bolt is clamped on the straight side face of the semicircular clamping block. Under the guiding effect of the arc-shaped inner walls of the limiting blocks, the clamping blocks can be naturally centered, then the surfaces of the two wall bodies are aligned, the wall body dislocation phenomenon caused by construction errors, external force collision and other factors is effectively avoided, and the accuracy and stability of wall body installation are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically a quick-connection node structure for prefabricated buildings. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories, such as floor slabs, wall panels, stairs, and balconies, are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods.

[0003] Existing prefabricated buildings embed steel plates or reinforcing bars at the edges or specific locations of prefabricated walls. On-site, the embedded steel plates or reinforcing bars of adjacent walls are connected by welding to achieve the connection of the walls. However, this method has high requirements for welding quality and the technical skills of construction personnel, and is prone to welding deformation, which can lead to misalignment and uneven installation of the prefabricated wall surface. Utility Model Content

[0004] The present invention aims to solve the above problems and thus provide a quick connection node structure for prefabricated buildings.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0006] A quick-connection node structure for prefabricated buildings includes a first wall and a second wall that are connected to each other. The first wall has a hole on its mating surface, and a fixing block is fixedly connected in the hole. The fixing block has an installation groove, and a rotating shaft is placed vertically in the installation groove. An arc-shaped first limiting block and a second limiting block are symmetrically hinged on the rotating shaft. The ends of the first and second limiting blocks away from the rotating shaft protrude out of the installation groove, and locking tongues are integrally formed on their opposite surfaces. An opening is formed between the two locking tongues. The inner arc surfaces of the two limiting blocks form a guide cavity. A pressure block is provided on the outer arc surface of each end of the two limiting blocks. A return spring is provided between the pressure block and the fixing block, and the two ends of the return spring are fixedly connected to the pressure block and the fixing block, respectively. The second wall has a plug on its mating surface, and a semi-circular locking block is fixedly connected to the end of the plug.

[0007] The concave arc surface of the limiting block is adapted to the convex arc surface of the semi-circular card block.

[0008] Both the first wall and the second wall contain a wear-resistant layer inside. A waterproof layer is fixedly connected to the outer wall of the wear-resistant layer. A reinforcing layer is fixedly connected to the outer wall of the waterproof layer. A flame-retardant layer is fixedly connected to the outer wall of the reinforcing layer. A heat-insulating layer is fixedly connected to the outer wall of the flame-retardant layer.

[0009] The wear-resistant layer is composed of ceramic particles; the ceramic particles have the characteristics of high hardness and strong wear resistance, can withstand large friction and impact forces, are not easy to wear, and have a long service life.

[0010] The waterproof layer is composed of diatomaceous earth; diatomaceous earth has certain waterproof properties and can also purify the air, preventing the assembled wall from being damaged by water.

[0011] The reinforcing layer is composed of glass fiber, which enables the partition plate to effectively improve its crack resistance and overall strength.

[0012] The flame-retardant layer is composed of calcium silicate; calcium silicate has a high fire resistance limit, which enables the partition plate to effectively prevent the spread of fire.

[0013] The insulation layer is composed of rock wool, which can effectively improve the flame retardant performance and thermal insulation effect of the assembled wall, thereby improving the adaptability of the building in different environments.

[0014] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0015] In use, the first wall and the second wall are joined together. The insert block carrying the locking block is inserted into the insertion hole. The locking block presses the first and second limiting blocks to both sides, increasing the opening between the ends of the two limiting blocks. The locking block passes through the opening and enters the guide cavity until the outer wall of the locking block fits against the arc-shaped inner wall of the limiting block. The locking tongue is locked on the flat side of the semi-circular locking block. During the insertion process, under the guidance of the arc-shaped inner wall of the limiting block, the locking block will naturally center itself, thereby aligning the surfaces of the two walls. This effectively avoids wall misalignment caused by construction errors, external force collisions, and other factors, ensuring the accuracy and stability of the wall installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection between the first wall and the second wall in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the card block, the first limiting block, and the second limiting block in an embodiment of this utility model;

[0019] The following are marked in the diagram: First wall 1, Second wall 2, Fixing block 3, Reset spring 4, Rotating shaft 5, First limiting block 6, Second limiting block 7, Pressing block 8, Inserting block 9, Semi-circular locking block 10. Detailed Implementation

[0020] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0021] See Figures 1-3 A quick-connection node structure for prefabricated buildings includes a first wall and a second wall that are connected to each other. The first wall has a hole on its mating surface, and a fixing block is fixedly connected in the hole. The fixing block has an installation groove, and a rotating shaft is placed vertically in the installation groove. An arc-shaped first limiting block and a second limiting block are symmetrically hinged on the rotating shaft. The ends of the first and second limiting blocks away from the rotating shaft protrude out of the installation groove, and locking tongues are integrally formed on their opposite surfaces. An opening is formed between the two locking tongues. The inner arc surfaces of the two limiting blocks form a guide cavity. A pressure block is provided on the outer arc surface of the ends of the two limiting blocks. A return spring is provided between the pressure block and the fixing block, and the two ends of the return spring are fixedly connected to the pressure block and the fixing block, respectively. The second wall has a plug on its mating surface, and a semi-circular locking block is fixedly connected to the end of the plug.

[0022] The concave arc surface of the limiting block is adapted to the convex arc surface of the semi-circular card block.

[0023] Both the first wall and the second wall contain a wear-resistant layer inside. A waterproof layer is fixedly connected to the outer wall of the wear-resistant layer. A reinforcing layer is fixedly connected to the outer wall of the waterproof layer. A flame-retardant layer is fixedly connected to the outer wall of the reinforcing layer. A heat-insulating layer is fixedly connected to the outer wall of the flame-retardant layer.

[0024] Assembled walls are formed by combining multiple layers of boards with different functions. The surface of the assembled wall is a wear-resistant layer composed of ceramic particles, which enables the assembled wall to withstand greater friction and impact forces, thereby extending its service life.

[0025] The wear-resistant layer is composed of ceramic particles; the ceramic particles have the characteristics of high hardness and strong wear resistance, can withstand large friction and impact forces, are not easy to wear, and have a long service life.

[0026] The waterproof layer is composed of diatomaceous earth; diatomaceous earth has certain waterproof properties and can also purify the air, preventing the assembled wall from being damaged by water.

[0027] The reinforcing layer is composed of glass fiber, which enables the partition plate to effectively improve its crack resistance and overall strength.

[0028] The flame-retardant layer is composed of calcium silicate; calcium silicate has a high fire resistance limit, which enables the partition plate to effectively prevent the spread of fire.

[0029] The insulation layer is composed of rock wool, which can effectively improve the flame retardant performance and thermal insulation effect of the assembled wall, thereby improving the adaptability of the building in different environments.

[0030] In use, the first wall and the second wall are joined together. The insert block carrying the locking block is inserted into the insertion hole. The locking block presses the first and second limiting blocks to both sides, increasing the opening between the ends of the two limiting blocks. The locking block passes through the opening and enters the guide cavity until the outer wall of the locking block fits against the arc-shaped inner wall of the limiting block. The locking tongue is locked on the flat side of the semi-circular locking block. During the insertion process, under the guidance of the arc-shaped inner wall of the limiting block, the locking block will naturally center itself, thereby aligning the surfaces of the two walls. This effectively avoids wall misalignment caused by construction errors, external force collisions, and other factors, ensuring the accuracy and stability of the wall installation.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A prefabricated building quick connection node structure, comprising a first wall body and a second wall body which are mutually butted, characterized in that: The butt joint surface of the first wall body is provided with a socket, and a fixed block is fixedly connected in the socket; an installation slot is formed in the fixed block; a rotating shaft is vertically arranged in the installation slot; a first limiting block and a second limiting block are symmetrically hinged to the rotating shaft; the end portions of the first limiting block and the second limiting block, which are away from the rotating shaft, project out of the installation slot; lock latches are integrally arranged on the opposite surfaces of the end portions; an opening is formed between the two lock latches; a guide cavity is formed by the inner arc surfaces of the two limiting blocks; a pressing block is arranged on the outer arc surface of the end portion of each limiting block; a return spring is arranged between the pressing block and the fixed block; and the two ends of the return spring are fixedly connected with the pressing block and the fixed block, respectively.

2. The prefabricated building quick connection node structure according to claim 1, characterized in that: The inner arc of the limiting block is matched with the outer arc of the semicircular clamping block.

3. The prefabricated building quick connection node structure according to claim 1, characterized in that: The first wall body and the second wall body each comprise a wear-resistant layer; the outer wall of the wear-resistant layer is fixedly connected with a waterproof layer; the outer wall of the waterproof layer is fixedly connected with a reinforcing layer; the outer wall of the reinforcing layer is fixedly connected with a flame-retardant layer; and the outer wall of the flame-retardant layer is fixedly connected with a thermal insulation layer.

4. The prefabricated building quick connection node structure according to claim 3, characterized in that: The wear-resistant layer is composed of ceramic particles.

5. The prefabricated building quick connection node structure according to claim 3, characterized in that: The waterproof layer is composed of diatomite.

6. The prefabricated building quick connection node structure according to claim 3, characterized in that: The reinforcing layer is composed of glass fiber.

7. The prefabricated building quick connection node structure according to claim 3, characterized in that: The flame-retardant layer is composed of calcium silicate.

8. The prefabricated building quick connection node structure according to claim 3, characterized in that: The thermal insulation layer is composed of rock wool.

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