Sandwich thermal insulation wallboard connecting piece

Abstract

The utility model relates to a sandwich thermal insulation wallboard connecting piece, which relates to the sandwich thermal insulation wallboard connecting piece field, and comprises a central thermal insulation wallboard and a hanging net group, the hanging net group comprises a right hanging net and a left hanging net, the central thermal insulation wallboard is installed between the right hanging net and the left hanging net, and a connecting piece sequentially penetrates through the right hanging net, the central thermal insulation wallboard and the left hanging net. Two sleeve sets are symmetrically connected to a long-rod bolt of the connecting piece and abut against the two sides of the center heat preservation wallboard. One end of the long-rod bolt is blocked and fixed through a pressing sheet, and the other end locks and fixes the whole connecting piece through a turncap; the positioning insertion shaft of the turncap abuts against the surface of the external thread inter-tooth groove of the long-rod bolt through elastic force, and clamping and limiting are achieved. The sleeve set comprises a shaft barrel, a rubber sleeve and a heat preservation rubber ring which are coaxially connected in sequence, a reed is fixedly installed on the outer side surface of the rubber sleeve in the axial direction of the rubber sleeve through a penetrating groove, and the rubber sleeve is pushed through elastic force to apply pressure to the heat preservation rubber ring. The concrete pouring device is high in stability and facilitates later concrete pouring.

Description

Technical Field

[0001] This utility model relates to the field of sandwich insulated wall panel connectors, and in particular to a sandwich insulated wall panel connector. Background Technology

[0002] Sandwich insulated wall panels are an important component of prefabricated buildings, playing a vital role in environmental protection and energy conservation. Their main components are inner and outer concrete panels and an intermediate thermal insulation layer, which are joined together by sandwich insulated wall panel connectors to form a unified load-bearing structure. In existing technology, sandwich insulated wall panel connectors generally consist of a screw rod, two sleeves threaded to the outer end of the screw rod, and a baffle slidably positioned at the outer end of the screw rod. In use, the inner and outer concrete panels and the intermediate thermal insulation layer are first assembled together. Then, the screw rod passes through the inner and outer concrete panels and the intermediate thermal insulation layer. Finally, the baffle is installed on the screw rod, forming the sandwich insulated wall panel.

[0003] Chinese Patent (Publication No.: CN222083794U, Publication Date: November 29, 2024) discloses a sandwich insulation wall panel connector. This patent mentions that because the screw is threaded to the cylinder, both the inner end of the cylinder and the outer end of the screw are threaded. During use, the sleeve needs to be repeatedly rotated. However, such prolonged repeated rotation easily leads to wear on the threads on the screw, increasing the probability of stripping and other issues with the sleeve, resulting in poor stability and affecting the merging and connection effect between the insulation wall panel and the inner and outer wall panels. Therefore, a sandwich insulation wall panel connector is needed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sandwich insulation wall panel connector to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A sandwich-type insulated wall panel connector includes a central insulated wall panel and a mesh reinforcement assembly. The mesh reinforcement assembly includes a right mesh and a left mesh, and the central insulated wall panel is installed between the right mesh and the left mesh.

[0007] The sandwich insulation wall panel connector also includes a connector that sequentially passes through the right hanging mesh, the central insulation wall panel, and the left hanging mesh for locking and fixing. The connector includes a long bolt that passes through the right hanging mesh, the central insulation wall panel, and the left hanging mesh. Two sleeve groups are symmetrically connected to the long bolt and abut against both sides of the central insulation wall panel. One end of the long bolt is fixed by a pressure plate, and the other end is locked and fixed by a nut.

[0008] Two dial plates are symmetrically installed on the outer surface of the cap, and the positioning shaft is inserted into the countersunk hole opened on the dial plate; a return spring is provided between the disc end of the positioning shaft and the dial plate, so as to use the elastic force to abut the shaft end of the positioning shaft against the surface of the external thread tooth groove of the long bolt, thereby achieving locking and limiting.

[0009] The sleeve assembly includes a shaft cylinder, a rubber sleeve, and an insulating rubber ring connected coaxially in sequence. The two ends of the wire frame extend from the inside of the shaft cylinder and are fixed to the hanging mesh assembly. The part of the wire frame located inside the cylinder fits against the inner wall of the shaft cylinder. A spring is fixedly installed on the outer surface of the rubber sleeve along the axial direction of the rubber sleeve through a through groove. The spring force pushes the rubber sleeve to apply pressure to the insulating rubber ring.

[0010] The hanging net assembly also includes a main hook rod and a secondary hook rod, which are installed opposite each other along the length direction. The two ends of the main hook rod and the secondary hook rod are respectively fixed to the right hanging net and the left hanging net.

[0011] The main hook rod and the auxiliary hook rod form a V-shaped structure.

[0012] The wire frame is welded to the mesh of the corresponding side hanging net.

[0013] There are two springs, which are symmetrically installed about the central axis of the rubber sleeve.

[0014] The disk end and shaft end of the positioning insert are T-shaped as a whole.

[0015] The reset spring is located between the countersunk groove of the dial plate and the disc end of the positioning insert shaft.

[0016] Both the gasket and the pressure plate have rubber plate ends on their inner sides.

[0017] The beneficial effects of adopting the above technical solution are as follows:

[0018] This utility model achieves anti-slip reinforcement by setting a connecting part. Compared with the traditional structure, the rubber plate end is set on the inner side of the pressure plate and the gasket, which can abut against the outer side of the cast-in-place outer wall panel to increase the contact friction. The shaft end of the positioning insert is attached to the groove between the external threads of the long bolt for locking. Without increasing the through hole of the central insulation wall panel, it can effectively prevent the slippage problem in the fit between the screw cap and the long bolt.

[0019] This utility model uses a sleeve assembly to position and fix the pre-placed mesh assembly. The main hook rod and the auxiliary hook rod cooperate to form a V-shaped structure. The auxiliary hook rod and the main hook rod are hooked together to position the left and right meshes. At the same time, the spring can control the insulation rubber ring to be back supported on both sides of the central insulation wall panel, so that the left and right meshes are subjected to external displacement force, thereby positioning and reinforcing the position of the left and right meshes, which facilitates the subsequent concrete pouring. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional connection structure of the hanging net assembly of this utility model;

[0022] Figure 3 This is a three-dimensional disassembly diagram of the sleeve assembly of this utility model;

[0023] Figure 4 This is a three-dimensional disassembly diagram of the connector of this utility model;

[0024] Figure 5 This is a partial cross-sectional schematic diagram showing the limiting state of the long rod bolt and the positioning insert shaft of this utility model.

[0025] 1-Central insulation wall panel, 2-Hanging mesh assembly, 21-Right hanging mesh, 22-Left hanging mesh, 23-Main hook rod, 24-Secondary hook rod, 3-Connector, 31-Pressure plate, 32-Long rod bolt, 33-Sleeve assembly, 331-Threaded frame, 332-Shaft cylinder, 333-Rubber sleeve, 334-Insulation rubber ring, 335-Spring, 34-Washer, 35-Swivel cap, 36-Pulley plate, 37-Positioning insert shaft, 38-Reset spring. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] like Figures 1-5 As shown, this utility model provides a sandwich insulation wall panel connector, which includes a central insulation wall panel 1, a mesh hanging assembly 2, and a connector 3. The mesh hanging assembly 2 includes a right mesh hanging assembly 21, a left mesh hanging assembly 22, a main hook rod 23, and a secondary hook rod 24. The connector 3 passes through the right mesh hanging assembly 21, the central insulation wall panel 1, and the left mesh hanging assembly 22 in sequence to lock and fix them, thereby positioning the right mesh hanging assembly 21 and the left mesh hanging assembly 22. The main hook rod 23 and the auxiliary hook rod 24 are installed opposite each other along their length. The installation distance between them can be set by the user. In this embodiment, the main hook rod 23 and the auxiliary hook rod 24 form a V-shaped structure. Both the main hook rod 23 and the auxiliary hook rod 24 pass through the central insulation wall panel 1 and are hooked to the right hanging net 21 and the left hanging net 22. The hook structures at both ends of the main hook rod 23 and the auxiliary hook rod 24 are respectively hung on the right hanging net 21 and the left hanging net 22, so that the right hanging net 21 and the left hanging net 22 are suspended vertically on both sides of the central insulation wall panel 1, which facilitates the subsequent pouring operation. The distance between the connection points of the main hook rod 23 and the auxiliary hook rod 24 on the right hanging net 21 or the left hanging net 22 can be set by the user according to the specific installation situation on site.

[0028] The connecting component 3 includes a pressure plate 31, a long bolt 32, a sleeve assembly 33, a gasket 34, a rotating cap 35, a lever 36, a positioning insert 37, and a return spring 38. The sleeve assembly 33 includes a threaded frame 331, a shaft cylinder 332, a rubber sleeve 333, a heat-insulating rubber ring 334, and a spring 335. The shaft cylinder 332 is a cylindrical hollow structure, and six through holes are machined in a ring on the side wall of the right end of the shaft cylinder 332. Two symmetrically arranged threaded frames 331 are installed inside the shaft cylinder 332. The central section of the threaded frame 331 is arc-shaped, and the two ends are straight. The two ends of the threaded frame 331 extend outward through a through hole. The central section of the threaded frame 331 fits against the inner wall of the shaft cylinder 332, which can reduce the resistance of the long bolt 32 insertion. The two threaded frames 331 can fix the shaft cylinder 332, which facilitates the installation of the shaft cylinder 332. The right end of the shaft sleeve 332 abuts coaxially with the first end of the rubber sleeve 333, and the end of the rubber sleeve 333 is coaxially fixed to the insulation ring 334. The inner diameter of both the rubber sleeve 333 and the insulation ring 334 is the same as the inner wall diameter of the shaft sleeve 332, facilitating the insertion of the long bolt 32. A through groove is provided on the outer surface of the rubber sleeve 333, and a spring 335 is fixedly installed in the through groove. The elastic force of the spring 335 can push the rubber sleeve 333, controlling the insulation ring 334 to abut against the outer surface of the central insulation wall panel 1, thereby further positioning and reinforcing the right hanging mesh 21 and the left hanging mesh 22.

[0029] The right end of the long bolt 32 is fixedly connected to the pressure plate 31, and the left end of the long bolt 32 passes sequentially through the sleeve assembly 33, the right hanging mesh 21, the central insulation wall panel 1, the left hanging mesh 22, the sleeve assembly 33, and the washer 34, and is threadedly connected to the screw cap 35. The two sleeve assemblies 33 are symmetrically arranged. The insulation rubber ring 334 of each sleeve assembly 33 is attached to the side of the through hole of the central insulation wall panel 1, and the thread frame of each sleeve assembly is fixedly connected to the hanging mesh on the corresponding side by welding. The long bolt 32 passes through the inner and outer wall panels and the central insulation wall panel 1, and is locked and fixed by the screw cap 35, which facilitates the formation of a sandwich insulation wall panel.

[0030] Two symmetrical dial plates 36 about the central axis of the swivel cap 35 are installed on the left side surface. Each dial plate 36 has a countersunk hole on its outer side, and a positioning shaft 37 is inserted into the countersunk hole. The positioning shaft 37 has a T-shaped cross-section, and a return spring 38 is sleeved on the shaft end of the positioning shaft 37. The return spring 38 is located between the countersunk groove of the dial plate 36 and the disc end of the positioning shaft 37. After the swivel cap 35 is adjusted, the positioning shaft 37 can be moved by the elastic force of the return spring 38, so that the shaft end of the positioning shaft 37 abuts against the groove between the external threads of the long bolt 32 to achieve a locking and limiting position, effectively preventing the swivel cap 35 from shifting due to slippage. Both the gasket 34 and the pressure plate 31 have rubber plate ends on their inner sides. When the rubber plate end of the pressure plate 31 and the gasket 34 abuts against the outer side of the inner and outer wall panels, it can effectively increase the friction during contact. The rebound force of the rubber plate end can exert a certain squeezing effect on the screw cap 35, ensuring the stability of the connection between the long bolt 32 and the screw cap 35 and reducing the probability of stripping.

[0031] For the through holes caused by the long bolt 32, main hook rod 23 and auxiliary hook rod 24, the holes can be filled with appropriate materials to ensure a smooth surface and reduce the thermal bridging effect. The insulation layer around the through holes can be reinforced to compensate for possible loss of insulation effect. This design of the connector is suitable for the application of non-load-bearing sandwich wall panels.

[0032] The working principle of the above-mentioned sandwich insulation wall panel connector is as follows:

[0033] according to Figure 2 and Figure 3 As shown, before concrete pouring, the wire frame 331 is inserted into the through hole of the shaft cylinder 332, and then the wire frame 331 is welded and fixed to the grid of the right hanging mesh 21 and the left hanging mesh 22, thereby installing the shaft cylinder 332 on the surface of the right hanging mesh 21 and the left hanging mesh 22. After the right hanging mesh 21 and the left hanging mesh 22 are initially positioned and installed, the rebound force of the spring 335 can push the rubber sleeve 333, so that the spring 335 can apply pressure to the insulation rubber ring 334, controlling the insulation rubber ring 334 to abut against the outer surface of the central insulation wall panel 1, thereby further positioning and reinforcing the right hanging mesh 21 and the left hanging mesh 22.

[0034] Secondly, according to Figure 3 and Figure 4As shown, the long bolt 32 passes between the inner and outer wall panels and the central insulation wall panel 1 after the concrete is poured. A washer 34 is fitted onto the surface of the long bolt 32, allowing the nut 35 to rotate and move on the axial end surface of the long bolt 32. The nut 35, after moving on the surface of the long bolt 32, compresses the washer 34, causing it to snap onto the outer wall surface for reinforcement. A groove for a pressure plate 31, which matches the nut 35, can be provided on one side of the wall for convenient concealed installation. After the nut 35 is adjusted, the positioning pin 37 can be pushed under the return force of the return spring 38, controlling the end of the positioning pin 37 to abut against the surface of the external thread groove of the long bolt 32, effectively preventing the nut 35 from slipping.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of this utility model.

Claims

1. A sandwich thermal insulation wallboard connecting piece, comprising a center thermal insulation wallboard and a net hanging group, the net hanging group comprising a right net and a left net, the center thermal insulation wallboard being installed between the right net and the left net, characterized in that: the sandwich thermal insulation wallboard connecting piece further comprises a connecting piece, the connecting piece being locked and fixed in sequence through the right net, the center thermal insulation wallboard and the left net, the connecting piece comprising a long rod bolt penetrating through the right net, the center thermal insulation wallboard and the left net, two sleeve groups being symmetrically connected on the long rod bolt and abutting on both sides of the center thermal insulation wallboard, one end of the long rod bolt being fixed by a pressing sheet, the other end being fixed by a screw cap to lock the whole connecting piece, the left end of the long rod bolt being in threaded connection with the screw cap in sequence through the sleeve group, the right net, the center thermal insulation wallboard, the left net, the sleeve group and a gasket; two push plates being symmetrically installed on the outer surface of the screw cap, a positioning insertion shaft being inserted into a counterbore provided on the push plate; a reset spring being arranged between the disc end of the positioning insertion shaft and the push plate to abut the shaft end of the positioning insertion shaft on the surface of the slot between the external thread teeth of the long rod bolt by elastic force, so as to realize clamping and limiting; the sleeve group comprising a shaft cylinder, a rubber sleeve and a thermal insulation rubber ring connected coaxially in sequence, both ends of a wire holder being fixed on the net hanging group by being extended from the inside of the shaft cylinder, the part of the wire holder located in the cylinder being attached to the inner wall of the shaft cylinder; a reed being fixedly installed on the outer surface of the rubber sleeve by a through groove in the axial direction of the rubber sleeve, the rubber sleeve being pushed by the elastic force to exert pressure on the thermal insulation rubber ring. the net hanging group further comprising a main hook rod and an auxiliary hook rod, the main hook rod and the auxiliary hook rod being oppositely installed along the length direction, both ends of the main hook rod and the auxiliary hook rod being fixed to the right net and the left net respectively.

2. A sandwich thermal wall panel connector according to claim 1, characterised in that: the main hook rod and the auxiliary hook rod forming a V-shaped structure.

3. A sandwich thermal wall panel connector according to claim 2, wherein: the wire holder being welded in the grid of the corresponding side net.

4. A sandwich thermal wall panel connector according to claim 1, wherein: the reed being two, the two reeds being symmetrically installed about the central axis of the rubber sleeve.

5. A sandwich thermal wall panel connector according to claim 1, wherein: the disc end and the shaft end of the positioning insertion shaft integrally forming a T-shaped structure.

6. A sandwich thermal wall panel connector according to claim 1, wherein: the reset spring being located between the disc end of the positioning insertion shaft and the sink groove of the counterbore of the push plate.

7. A sandwich thermal wall panel connector according to claim 6, wherein: the gasket and the pressing sheet both having a rubber plate end.

8. A sandwich thermal wall panel connector according to claim 1, wherein: ​

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