Built-in thermal insulation board connecting device

Abstract

The utility model relates to the field of building construction technology, and concretely is a kind of connecting device for built-in insulation board, including two support sleeves, two support sleeves are connected by connecting joint, the length of connecting joint is adapted to the thickness of thermal insulation pipe;The opposite end of support sleeve is provided with reinforcing steel bar limiting seat, cross type clamping groove is arranged on reinforcing steel bar limiting seat, to be used for clamping reinforcing mesh on the both sides of insulation board;Limiting clamp is further equipped on reinforcing steel bar limiting seat, to limit reinforcing mesh;End cap is further buckled on the outer end of reinforcing steel bar limiting seat;The utility model can accurately control the installation thickness of insulation board by the structural design of double support sleeve and adaptive connecting joint;Cross type clamping groove cooperates limiting clamp to form multiple limiting of reinforcing mesh, ensure that insulation board does not displace when concrete is poured;The buckling design of end cap protects internal structure, and also enhances the overall connection stability, solves the problems of low efficiency of traditional binding type connection and easy loosening of hook type connection.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a connecting device for built-in insulation boards. Background Technology

[0002] During building construction, insulation boards are often installed in walls and other structures to improve the building's thermal insulation performance. The installation of built-in insulation boards requires reliable connectors to link the insulation board to the reinforcing mesh on both sides. This ensures that the insulation board, reinforcing mesh, and concrete form a stable, integrated structure during concrete pouring, thereby guaranteeing the building's insulation performance and structural strength.

[0003] Currently, most connectors available on the market for built-in insulation boards employ simple binding structures or single hook or slot structures. Binding structures typically use wire or similar materials to wrap and fix the insulation board to the reinforcing mesh. This method is not only inefficient and requires significant manual labor, but also prone to loosening and displacement of the insulation board and reinforcing mesh during concrete pouring due to difficulty in precisely controlling the binding force. This leads to misalignment of the insulation board, affecting the building's insulation performance and overall quality. Simple hook or slot structures, however, have poor stability. Single hook or slot structures cannot tightly secure the reinforcing mesh during connection, making it prone to detachment. For example, some slots lack elastic restraint components, allowing the reinforcing mesh to easily slip out under external vibration or pressure changes. This not only affects the connection stability between the insulation board and the external structure but may also cause the overall insulation board structure to loosen due to weak connections, reducing insulation performance.

[0004] Therefore, there is an urgent need for a new type of connection device for built-in insulation boards that can effectively solve the problems of low installation efficiency and unstable connection of existing connectors, ensure that the built-in insulation board is firmly connected to the steel mesh during concrete pouring, and improve the insulation performance and structural strength of the building. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connection device for built-in insulation boards that has high installation efficiency and can firmly connect the insulation board to the steel bars.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A connecting device for an internal insulation board includes two support sleeves connected by a connecting joint, the length of which is adapted to the thickness of the insulation pipe. A reinforcing bar limiting seat is provided at one opposite end of the support sleeve, and the reinforcing bar limiting seat is provided with a cross-shaped groove for locking the reinforcing bar mesh on both sides of the insulation board. The reinforcing bar limiting seat is also provided with a limiting clip for limiting the reinforcing bar mesh. An end cap is also fastened to the outer end of the reinforcing bar limiting seat.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: This utility model, through the structural design of double support sleeves and matching connection joints, can precisely control the installation thickness of the insulation board; the cross-shaped slot, together with the limiting clip, forms multiple limits on the steel mesh, ensuring that the insulation board does not shift during concrete pouring; the snap-fit ​​design of the end cap not only protects the internal structure but also enhances the overall connection stability, solving the problems of low efficiency of traditional binding connection and easy loosening of hook connection.

[0008] As a preferred embodiment, a further technical solution of this utility model is: Preferably, the connecting joint includes a sub-connecting pipe and a female connecting pipe. The opposite ends of the sub-connecting pipe and the female connecting pipe are respectively fixed to two support sleeves. An elastic limiting block is provided on the sub-connecting pipe, and a limiting hole is opened on the female connecting pipe corresponding to the elastic limiting block. The end of the sub-connecting pipe away from the support sleeve is inserted into the female connecting pipe and limited by the elastic limiting block and the limiting hole. The connecting joint adopts the structure of sub-connecting pipe and female connecting pipe, and is limited by the elastic limiting block and the limiting hole. Compared with the traditional complex assembly structure, the installation process of the connecting components is greatly simplified. The construction personnel only need to insert the sub-connecting pipe into the female connecting pipe, and the elastic limiting block will automatically snap into the limiting hole to complete the connection. There is no need for tedious debugging, which significantly improves the construction efficiency. At the same time, it ensures the firmness of the connection between the two support sleeves and avoids the positioning effect of the insulation board due to loose connection, thus solving the problem of low installation efficiency of existing connecting parts.

[0009] Preferably, the sub-connecting pipe is provided with a first receiving groove, and the elastic limiting block is hinged in the first receiving groove at one end near the female connecting pipe, and the other end is connected to a first return spring. The lower end of the first return spring is fixed to the bottom of the first receiving groove. The hinged elastic limiting block, in conjunction with the first return spring, ensures that the limiting block can smoothly pass through the wall thickness of the female connecting pipe, and can automatically spring back and lock after reaching the position.

[0010] Preferably, the support sleeve is connected to the sub-connecting pipe or the main connecting pipe, and the support sleeve has several elongated holes spaced circumferentially on it. This structural design, with the support sleeve connected to the sub-connecting pipe or the main connecting pipe and featuring elongated holes, provides a smoother filling channel for concrete during pouring. Concrete can fully enter the interior of the support sleeve and the connection joint area through the elongated holes, enhancing the bonding strength between the built-in insulation board connection device and the concrete, allowing the insulation board, reinforcing mesh, and concrete to better form a solid whole.

[0011] Preferably, a water-swellable sealing ring is provided on the opposite end face of the support sleeve.

[0012] Preferably, a second receiving groove is provided on the side wall of the cross-shaped slot, the limiting card is slidably connected to the second receiving groove, and a second return spring is connected between the limiting card and the second receiving groove; the structure is simple and easy to install.

[0013] Preferably, the side cross-section of the limiting clip has a right-angled trapezoidal structure, which facilitates the insertion of the reinforcing bar into the cross-shaped slot.

[0014] Preferably, the lower edge of the end cap is provided with a first snap-fit ​​protrusion, and the corresponding position of the steel bar limiting seat is provided with a second snap-fit ​​protrusion that cooperates with the first snap-fit ​​protrusion. The two are connected in a detachable manner by elastic snap-fit.

[0015] Preferably, the end cap is provided with a cross-shaped insertion part that is adapted to the cross-shaped slot; the cross-shaped insertion part and the cross-shaped slot form a tight fit, so that the end cap can not only be axially fixed after being fastened, but also effectively resist circumferential torsion and radial displacement, ensuring the connection stability between the end cap and the steel bar limiting seat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the connecting device for the built-in insulation board in use in this utility model embodiment; Figure 2 This is a schematic diagram of the structure of the connecting device for the built-in insulation board in this embodiment of the utility model; Figure 3 This is a schematic diagram of the connection structure of the elastic limiting block in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure after the limiting clip has secured the steel mesh in an embodiment of this utility model; Figure 5 This is a schematic diagram of the connection structure of the limiting card in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Insulation board; 2. Reinforcing mesh; 3. Support sleeve; 301. Long strip hole; 4. Sub-connecting pipe; 401. First receiving groove; 5. Female connecting pipe; 501. Limiting hole; 6. Elastic limiting block; 7. Reinforcing bar limiting seat; 701. Cross-shaped groove; 702. Second snap-fit ​​protrusion; 8. End cap; 9. Limiting clip; 10. First return spring; 11. Second return spring; 12. Water-swellable sealing ring gasket. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The purpose of this description 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.

[0019] like Figures 1 to 3 As shown, this embodiment provides a connecting device for an internal insulation board, including two support sleeves 3 connected by a connecting joint. The length of the connecting joint is adapted to the thickness of the insulation pipe. Specifically, the connecting joint includes a sub-connecting pipe 4 and a female connecting pipe 5. The opposite ends of the sub-connecting pipe 4 and the female connecting pipe 5 are respectively fixed to the two support sleeves 3. An elastic limiting block 6 is provided on the sub-connecting pipe 4, and a limiting hole 501 is provided on the female connecting pipe 5 corresponding to the elastic limiting block 6. The end of the sub-connecting pipe 4 away from the support sleeve 3 is inserted into the female connecting pipe 5 and limited by the elastic limiting block 6 and the limiting hole 501. A steel bar limiting seat 7 is provided at the opposite end of the support sleeve 3. The steel bar limiting seat 7 is provided with a cross-shaped groove 701 for locking the steel mesh 2 on both sides of the insulation board 1. The steel bar limiting seat 7 is also provided with a limiting clip 9 for limiting the steel mesh 2. An end cap 8 is also fastened to the outer end of the steel bar limiting seat 7. Among them, the rebar limiting seat 7, the support sleeve 3, the sub-connecting pipe 4 and the female connecting pipe 5 can all be made of stainless steel, hot-dip galvanized steel pipe, aluminum alloy, carbon steel and other materials.

[0020] Furthermore, in this embodiment, the connection structure of the elastic limiting block 6 is as follows: Figure 4 As shown, the sub-connecting pipe 4 is provided with a first receiving groove 401. The elastic limiting block 6 is hinged in the first receiving groove 401 at one end near the mother connecting pipe 5, and the other end is connected to a first return spring 10. The lower end of the first return spring 10 is fixed to the bottom of the first receiving groove 401. The hinged elastic limiting block 6, in conjunction with the first return spring 10, ensures that the limiting block can smoothly pass through the wall thickness of the mother connecting pipe 5, and can automatically spring back and lock after reaching the position.

[0021] Furthermore, the support sleeve 3 is connected to the sub-connecting pipe 4 or the female connecting pipe 5, and the support sleeve 3 is provided with several elongated holes 301 at intervals around the circumference; during concrete pouring, it provides a smoother filling channel for the concrete; the concrete can fully enter the interior of the support sleeve 3 and the connection joint area through the elongated holes 301, enhancing the bonding strength between the insulation board 1, the connecting device and the concrete, so that the insulation board 1, the steel mesh 2 and the concrete can better form a solid whole.

[0022] A water-swellable sealing ring 12 is provided on the opposite end face of the support sleeve 3; wherein, the water-swellable sealing ring 12 can be made of water-swellable rubber material.

[0023] After the concrete is poured, the moisture in the concrete causes the water-swellable sealing ring 12 to expand. This expansion exerts a certain compressive force on the support sleeve 3 and the insulation board 1. Simultaneously, because the elastic limiting block 6 is engaged in the limiting hole 501 of the female connecting pipe 5, the relative movement between the female connecting pipe 4 and the female connecting pipe 5 is restricted, ensuring that the positions of the two support sleeves 3 remain fixed. In this situation, the compressive force generated by the expansion of the water-swellable sealing ring 12 acts directly on the contact surface between the support sleeve 3 and the insulation board 1, pressing them together more tightly. This compressive force enhances the friction between the support sleeve 3 and the insulation board 1, making it more difficult for the insulation board 1 to slide between the two support sleeves 3 when subjected to external vibrations.

[0024] Furthermore, in this embodiment, the connection structure of the limiting card 9 is as follows: Figure 5 As shown, a second receiving groove is provided on the side wall of the cross-shaped slot 701, the limiting card 9 is slidably connected to the second receiving groove, and a second return spring 11 is connected between the limiting card 9 and the second receiving groove; wherein, the side cross section of the limiting card 9 is a right-angled trapezoidal structure.

[0025] The lower edge of the end cap 8 is provided with a first snap-fit ​​protrusion, and the corresponding position of the steel bar limiting seat 7 is provided with a second snap-fit ​​protrusion 702 that cooperates with the first snap-fit ​​protrusion. The two are connected in a detachable manner by elastic snap-fit.

[0026] The end cap 8 is provided with a cross-shaped insertion part that is adapted to the cross-shaped slot 701; the cross-shaped insertion part and the cross-shaped slot 701 form a tight fit, so that the end cap 8 can not only be axially fixed after being fastened, but also effectively resist circumferential torsion and radial displacement, ensuring the connection stability between the end cap 8 and the steel bar limiting seat 7.

[0027] In actual construction, the steps for using the connecting device are as follows: First, the connecting joint is assembled. Since the connecting joint consists of a sub-connecting pipe 4 and a female connecting pipe 5, and the sub-connecting pipe 4 has an elastic limiting block 6, while the female connecting pipe 5 has a corresponding limiting hole 501, the installer aligns the end of the sub-connecting pipe 4 furthest from the supporting sleeve 3 with the female connecting pipe 5 and inserts and fixes the sub-connecting pipe 4 to the female connecting pipe 5. During insertion, the elastic limiting block 6 is pressed into the first receiving groove 401 by the inner wall of the female connecting pipe 5. When the elastic limiting block 6 reaches the limiting hole 501, it automatically springs back and locks into the limiting hole 501, thus quickly and firmly completing the connection between the two supporting sleeves 3, while ensuring that the length of the connecting joint matches the thickness of the insulation pipe, accurately determining the installation position of the insulation board 1. Next, the insulation board 1 and the reinforcing mesh 2 are initially positioned. The reinforcing mesh 2 is then embedded into the cross-shaped groove 701 on the reinforcing mesh limiting seat 7. The cross-shaped groove 701 is designed to fit tightly with the horizontal and vertical intersecting structure of the reinforcing mesh 2, limiting the reinforcing mesh 2 from multiple directions and effectively preventing it from moving laterally or longitudinally within the groove, thus achieving the initial positioning of the insulation board 1 and the reinforcing mesh 2. Simultaneously, as the reinforcing mesh 2 enters the cross-shaped groove 701, the limiting clip 9 is pressed into the first receiving groove 401 by the reinforcing bar. After the reinforcing bar passes the limiting clip 9, the limiting clip 9 automatically springs back, preventing the reinforcing bar from being dislodged by the lateral pressure during concrete pouring. Finally, the cross-shaped insertion part on the end cap 8 is aligned with the cross-shaped groove 701 and fastened onto the reinforcing mesh limiting seat 7. When the end cap 8 is pressed down, the first locking protrusion and the side wall of the end cap 8 undergo elastic deformation, passing over the second locking protrusion 702 and returning to their original position, forming an axial limiting fit.

[0028] This connection device offers significant advantages. At the connection joint, the female connecting pipe 4 and the female connecting pipe 5 cooperate via the elastic limiting block 6 and the limiting hole 501 to achieve a quick and precise connection. The length is also adapted to the thickness of the insulation pipe, ensuring the accurate installation position of the insulation board 1. The cross-shaped groove 701 of the rebar limiting seat 7 cooperates with the limiting clip 9 and the end cap 8 to firmly clamp and lock the rebar mesh 2 on both sides of the insulation board 1, effectively preventing the rebar mesh 2 from shifting during construction and enhancing the connection stability between the insulation board 1 and the rebar mesh 2. In actual construction, rebar limiting seats 7 of different sizes can be manufactured so that the thickness of the rebar limiting seat 7 protruding from the rebar mesh 2 plus the thickness of the end cap 8 equals the thickness of the rebar protective layer. This eliminates the need for additional spacers, saving construction steps and improving construction efficiency. This device is simple and convenient to use, provides excellent connection results, and has a promising market prospect.

[0029] The above description is merely 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 connecting device for an embedded insulation board, characterized in that: It includes two support sleeves (3), which are connected by a connecting joint. The length of the connecting joint is adapted to the thickness of the insulation pipe. A steel bar limiting seat (7) is provided at one end of the support sleeve (3) opposite to each other. A cross-shaped slot (701) is provided on the steel bar limiting seat (7) to clamp the steel mesh (2) on both sides of the insulation board (1). A limiting clip (9) is also provided on the steel bar limiting seat (7) to limit the steel mesh (2). An end cap (8) is also fastened to the outer end of the steel bar limiting seat (7).

2. The connecting device for the built-in insulation board according to claim 1, characterized in that: The connecting joint includes a sub-connecting pipe (4) and a female connecting pipe (5). The opposite ends of the sub-connecting pipe (4) and the female connecting pipe (5) are respectively fixed to two support sleeves (3). An elastic limiting block (6) is provided on the sub-connecting pipe (4). A limiting hole (501) is opened on the female connecting pipe (5) corresponding to the elastic limiting block (6). The end of the sub-connecting pipe (4) away from the support sleeve (3) is inserted into the female connecting pipe (5) and limited by the elastic limiting block (6) and the limiting hole (501).

3. The connecting device for the built-in insulation board according to claim 2, characterized in that: The sub-connecting pipe (4) is provided with a first receiving groove (401). The elastic limiting block (6) is hinged in the first receiving groove (401) at one end near the mother connecting pipe (5), and the other end is connected to a first reset spring (10). The lower end of the first reset spring (10) is fixed to the bottom of the first receiving groove (401).

4. The connecting device for the built-in insulation board according to claim 2, characterized in that: The support sleeve (3) is connected to the sub-connecting pipe (4) or the female connecting pipe (5), and the support sleeve (3) is provided with several elongated holes (301) at intervals around the circumference.

5. The connecting device for the built-in insulation board according to claim 1, characterized in that: A water-swellable sealing ring (12) is provided on the opposite end face of the support sleeve (3).

6. The connecting device for the built-in insulation board according to claim 1, characterized in that: A second receiving groove is provided on the side wall of the cross-shaped slot (701), the limiting card (9) is slidably connected to the second receiving groove, and a second return spring (11) is connected between the limiting card (9) and the second receiving groove.

7. The connecting device for the built-in insulation board according to claim 6, characterized in that: The side section of the limiting clip (9) is a right-angled trapezoidal structure.

8. The connecting device for the built-in insulation board according to claim 1, characterized in that: The end cap (8) has a first snap-fit ​​protrusion at the lower edge, and the steel bar limiting seat (7) has a second snap-fit ​​protrusion (702) at the corresponding position that cooperates with the first snap-fit ​​protrusion. The two are connected in a detachable manner by elastic snap-fit.

9. The connecting device for the built-in insulation board according to claim 1, characterized in that: The end cap (8) is provided with a cross-shaped insertion part that is compatible with the cross-shaped slot (701).

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