A new type of wall sandwich panel

Abstract

The utility model relates to a novel wall sandwich panel, including metal panel and metal backboard, be equipped with core material between metal panel and metal backboard, two side edges of core material are equipped with female mouth rabbet and male mouth rabbet respectively, female mouth rabbet is equipped with first tenon, first mortise, second tenon, second mortise, third tenon, third mortise and fourth tenon in proper order on it, male mouth rabbet is equipped with fourth mortise, fifth tenon, fifth mortise, sixth tenon, sixth mortise, seventh tenon and seventh mortise in proper order on it, metal panel is bent for inverted J type, and the middle part of both ends of inverted J type forms sixth tenon, seventh tenon and sixth mortise, forms water guide groove between sixth mortise and seventh mortise, compared with prior art, the utility model has the advantages that sixth tenon, seventh tenon and sixth mortise add a waterproof reverse ridge in the inside of rabbet, reduce the risk that water is absorbed into rabbet and then infiltrates rock wool, and make it more difficult for water vapor to invade core material under humid working conditions.

Description

Technical Field

[0001] This utility model relates to metal building wall cladding systems, and in particular to a novel wall sandwich panel. Background Technology

[0002] In the field of prefabricated buildings, metal sandwich panels are an important component of building envelope systems. The reliability of their tongue-and-groove structure directly affects the overall performance of the wall. Traditional tongue-and-groove joints are formed by bending the panels to create an interlocking structure, but they have significant drawbacks: First, under wind uplift, the tongue-and-groove connection on one side of the metal panel is prone to becoming a weak point. Studies have shown that this part contributes about 70% of the overall wind uplift resistance. However, due to insufficient tenon-and-groove interlocking depth and small effective contact area of ​​the tenon and mortise, the traditional structure is prone to tongue-and-groove misalignment and slippage, making it difficult to withstand repeated wind pressure. Second, the waterproof performance is weak. The joints rely on a single sealing strip, and after the strip ages, rainwater can easily seep into the core material, causing corrosion. Third, the tongue-and-groove joint lacks an effective drainage design. Water accumulation leads to the deterioration of the performance of hygroscopic core materials such as rock wool and accelerates the corrosion of the metal surface.

[0003] A search revealed that authorization announcement number CN218714580U discloses a tongue-and-groove joint including a female tongue-and-groove joint and a male tongue-and-groove joint. The female tongue-and-groove joint, from the outer panel to the inner panel, sequentially includes a first tenon, a first groove, a second tenon, a second groove, and a third tenon. The male tongue-and-groove joint, from the outer panel to the inner panel, sequentially includes a first tenon groove, a second tenon groove, a fourth tenon, a third tenon groove, a fifth tenon, and a fourth tenon groove. The first tenon groove matches the first tenon, the fourth tenon matches the first groove, the third tenon groove matches the second tenon, the fifth tenon matches the second groove, and the fourth tenon groove matches the third tenon. However, existing improved solutions are limited by traditional construction principles, making it difficult to balance structural reliability and waterproof durability, thus restricting their application in complex environments.

[0004] In summary, the technical problem that needs to be solved is how to design a wall sandwich panel with good load-bearing capacity and waterproof drainage effect. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the existing technology, such as weak load-bearing capacity, weak waterproof performance and lack of drainage structure, and to provide a new type of wall sandwich panel.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the present invention, a novel wall sandwich panel is provided, comprising a metal front panel and a metal back panel, wherein a core material is provided between the metal front panel and the metal back panel, wherein a female tongue and groove joint is provided on a first side of the core material, and a male tongue and groove joint is provided on a second side opposite to the first side.

[0008] The female tongue and groove joint is provided with a first tenon, a first mortise, a second tenon, a second mortise, a third tenon, a third mortise, and a fourth tenon in sequence from the metal back plate to the metal front plate; the male tongue and groove joint is provided with a fourth mortise, a fifth tenon, a fifth mortise, a sixth tenon, a sixth mortise, a seventh tenon, and a seventh mortise in sequence from the metal back plate to the metal front plate.

[0009] The first tenon mates with the fourth mortise, the second tenon mates with the fifth mortise, the third tenon mates with the sixth mortise, the fourth tenon mates with the seventh mortise, the fifth tenon mates with the first mortise, the sixth tenon mates with the second mortise, and the seventh tenon mates with the third mortise.

[0010] The metal panel is bent into an inverted J-shape, with a sixth tenon, a seventh tenon, and a sixth mortise formed at the middle of both ends of the inverted J-shape; a water guide groove is formed between the sixth mortise and the seventh mortise.

[0011] As a preferred technical solution, the metal back plate covers the first tenon, the first mortise, the fourth mortise and the fifth tenon, and the metal front panel covers one side of the fourth tenon, the third mortise, the third tenon, the second mortise, the seventh mortise and the second tenon.

[0012] As a preferred technical solution, the first tenon and the second tenon have the same height; the height difference between the third tenon and the second tenon is ΔH1; the height difference between the top surface of the fourth tenon and the second tenon is ΔH2, where ΔH2 is 1.1 to 1.3 times ΔH1; the depth difference between the first mortise and the second mortise is Δh1; the depth difference between the first mortise and the third mortise is Δh2, where Δh2 is 4.0 to 4.5 times Δh1.

[0013] As a preferred technical solution, ΔH1 is 20-25 mm; Δh1 is 5-7 mm.

[0014] As a preferred technical solution, the cross-sectional shape of the first mortise, the second mortise, and the third mortise is triangular.

[0015] As a preferred technical solution, the height of the first tenon is greater than the depth of the fourth mortise, and the height of the fourth tenon is greater than the depth of the seventh mortise.

[0016] As a preferred technical solution, the seventh tenon is covered with a rubber sleeve.

[0017] As a preferred technical solution, the opening width of the water guide channel on the side near the metal panel is 4-5mm; the slope of the water guide channel from the metal back plate to the metal panel is 2%.

[0018] As a preferred technical solution, a screw is installed on the male tenon, and a washer is provided in the sixth mortise. The washer has an L-shaped cross-section, and the screw passes through the washer, the sixth tenon, and the core material of the male tenon in sequence.

[0019] As a preferred technical solution, the sixth tenon has screw positioning grooves on both sides of its tenon body, the opening of the screw positioning grooves facing the metal panel, and the screws passing through the screw positioning grooves.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) The metal panel of this utility model is bent to form a sixth tenon, a seventh tenon and a sixth mortise, and an additional waterproof retaining wall is added inside the tongue and groove joint to reduce the risk of water being drawn into the tongue and groove joint and then seeping into the rock wool; under humid conditions, the sixth tenon and the seventh tenon can provide a double seal for the tongue and groove joint, making it more difficult for moisture to penetrate the core material; this utility model increases the load-bearing capacity of the tongue and groove joint, prevents the tongue and groove joint from slipping, and greatly improves the waterproof performance of the tongue and groove joint.

[0022] 2) Both the metal back plate and the metal front plate of this utility model cover some of the tenons and mortises, ensuring that these parts that provide the main support and are easily penetrated by water vapor have higher strength and better sealing performance.

[0023] 3) The third tenon and the second tenon of this utility model have a height difference of ΔH1. The space formed by the height difference can provide a working surface for the screw, which is convenient for installation and fixing. The second tenon, the third tenon and the fourth tenon form a stepped height difference. When rainwater is sucked into the tongue and groove, it needs to rise gradually to enter the internal cavity of the tongue and groove, which is extremely difficult. Therefore, the stepped structure of this utility model further improves the waterproof performance of the tongue and groove. ΔH1 is 20 to 25 mm, which is in line with the size of commonly used screws and has a wide range of applications. Δh1 is 5 to 7 mm, which can provide sufficient mortise depth and increase the contact area when the male and female parts are engaged.

[0024] 4) The seventh tenon of this utility model is covered with a rubber sleeve. The rubber sleeve prevents the seventh tenon from scratching the paint and coating on the metal panel covered by the third mortise on the female tongue and groove during installation and subsequent use, and prevents the rust water flowing out after the scratched metal panel rusts and contaminates the outer surface of the metal sandwich panel.

[0025] 5) The height of the first tenon of this utility model is greater than the depth of the fourth mortise, and the height of the fourth tenon is greater than the depth of the seventh mortise; so that the tenon and mortise joints are more compact when the male and female parts are engaged.

[0026] 6) The water guide channel with a certain opening width and slope of this utility model forms a good drainage channel. When rainwater enters the tongue and groove, it can be smoothly discharged along the water guide channel.

[0027] 7) The pad of this utility model provides a flat mounting surface for the screw, and the screw positioning groove of the sixth tenon facilitates the positioning and installation of the screw, greatly reducing the installation difficulty. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the female tongue and the male tongue of this utility model;

[0029] Figure 2 This is a cross-sectional view of the female tongue and groove and the male tongue and groove of this utility model;

[0030] Figure 3 This is a cross-sectional view of the female tongue and groove and the male tongue and groove of this utility model connecting with each other;

[0031] The numbers in the diagram are as follows:

[0032] 1. Metal panel, 2. Metal back panel, 3. Core material, 300. First tenon, 301. First mortise, 302. Second tenon, 303. Second mortise, 304. Third tenon, 305. Third mortise, 306. Fourth tenon, 310. Fourth mortise, 311. Fifth tenon, 312. Fifth mortise, 313. Sixth tenon, 3130. Screw positioning groove, 314. Sixth mortise, 315. Seventh tenon, 316. Seventh mortise, 317. Water guide groove, 4. Rubber sleeve, 5. Screw, 6. Washer plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0034] like Figure 1 As shown, this utility model provides a novel wall sandwich panel, including a metal front panel 1 and a metal back panel 2, with a core material 3 provided between the metal front panel 1 and the metal back panel 2. The core material 3 has a female tongue and groove joint on its first side and a male tongue and groove joint on its other side.

[0035] like Figure 2 As shown, the tongue and groove joint from the metal back plate 2 to the metal front plate 1 is provided with a first tenon 300, a first mortise 301, a second tenon 302, a second mortise 303, a third tenon 304, a third mortise 305 and a fourth tenon 306 in sequence.

[0036] The male tongue and groove joints from the metal back plate 2 to the metal front plate 1 are provided with the fourth mortise 310, the fifth tenon 311, the fifth mortise 312, the sixth tenon 313, the sixth mortise 314, the seventh tenon 315 and the seventh mortise 316 in sequence.

[0037] The first tenon 300 fits into the fourth mortise 310, the second tenon 302 fits into the fifth mortise 312, the third tenon 304 fits into the sixth mortise 314, the fourth tenon 306 fits into the seventh mortise 316, the fifth tenon 311 fits into the first mortise 301, the sixth tenon 313 fits into the second mortise 303, and the seventh tenon 315 fits into the third mortise 305.

[0038] The cross-sectional shape of the first mortise 301, the second mortise 303, and the third mortise 305 is triangular.

[0039] Metal panel 1 covers one side of the fourth tenon 306, the third mortise 305, the third tenon 304, the second mortise 303, the seventh mortise 316, and the second tenon 302. After covering the seventh mortise 316, metal panel 1 is folded in half and then bent into an inverted J-shape, dividing the tongue and groove joint into inner and outer cavities. Compared with traditional sandwich panel tongue and groove joints, this utility model forms an additional tenon through the simple bending of metal panel 1, increasing the load-bearing capacity of the tongue and groove joint, preventing slippage, and greatly improving the waterproof performance of the tongue and groove joint. The two ends and the middle of the inverted J-shape form the sixth tenon 313, the seventh tenon 315, and the sixth mortise 314, with the sixth tenon 313 close to the fifth mortise 312. Metal back panel 2 covers the first tenon 300, the first mortise 301, the fourth mortise 310, and the fifth tenon 311. The inverted J-shape creates a high barrier structure, adding a waterproof backstop inside the tongue and groove joint. Water can only enter when it reaches a certain height, reducing the risk of water being drawn into the joint and seeping into the rock wool. The sixth tenon 313 and the seventh tenon 315 significantly increase the contact area between the female and male tongue and groove joints, giving them a stronger load-bearing capacity.

[0040] The first tenon 300 and the second tenon 302 have the same height; the height difference between the third tenon 304 and the second tenon 302 is ΔH1, where ΔH1 is 20-25mm, leaving a working surface for screw 5, facilitating operation; the height difference between the top surface of the fourth tenon 306 and the second tenon 302 is ΔH2, where ΔH2 is 1.1 to 1.3 times ΔH1; the depth difference between the first mortise 301 and the second mortise 303 is Δh1, where Δh1 is 5-7mm; the depth difference between the first mortise 301 and the third mortise 305 is Δh2, where Δh2 is 4.0 to 4.5 times Δh1. The height of the first tenon 300 is greater than the depth of the fourth mortise 310, and the height of the fourth tenon 306 is greater than the depth of the seventh mortise 316. The second tenon 302, the third tenon 304 and the fourth tenon 306 form a stepped geometric relationship. The height of rainwater needs to increase sequentially to cross different tenons, which greatly increases the difficulty of rainwater entering the tongue and groove.

[0041] The seventh tenon 315 is covered with a rubber sleeve 4, which can be cut to size. When the seventh tenon 315 mates with the third mortise 305, the rubber sleeve 4 abuts against the third mortise 305, blocking the gap between the seventh tenon 315 and the third mortise 305, forming a good sealing structure. External water is difficult to pass through the seventh tenon 315 and the third mortise 305 and enter the tongue and groove joint. The rubber sleeve 4 also prevents the seventh tenon 315 from scratching the paint and coating on the metal panel 1 covering the third mortise of the tongue and groove joint during installation and subsequent use, and prevents rust water from flowing out after the metal panel 1 is scratched and contaminating the outer surface of the metal sandwich panel.

[0042] A water guide channel 317 is formed between the sixth mortise 314 and the seventh mortise 316. The opening width of the water guide channel 317 on the side near the metal panel 1 is 4-5 mm; the slope of the water guide channel 317 from the metal back plate 2 towards the metal panel 1 is 2%. Under wind load, due to the pressure difference between indoors and outdoors, a siphon phenomenon easily occurs inside the tongue and groove joint, drawing water from the metal panel 1 into the joint. This design helps to reduce the occurrence of this phenomenon and facilitates drainage inside the tongue and groove joint. After external rainwater enters the tongue and groove joint, it can naturally flow out through the water guide channel 317, effectively preventing water from entering the interior of the tongue and groove joint.

[0043] The sixth mortise 314 is provided with a pad 6, the pad 6 has an L-shaped cross-section, and the tenon body of the sixth tenon 313 is provided with screw positioning grooves 3130 on both sides. The opening direction of the screw positioning grooves 3130 is facing the metal panel 1. The screw 5 passes through the pad 6, the screw positioning grooves 3130 of the sixth tenon 313 and the male tongue and groove core material 3 in sequence for fixing.

[0044] like Figure 3As shown, after external rainwater is drawn into the tongue and groove, there are only two possible paths (as indicated by the arrows). One path is upward along the drainage channel, and even if it enters, it can be discharged again along the drainage channel later. The other path crosses the seventh tenon 315, that is, the water head height needs to be higher than the seventh tenon 315 to enter the sixth mortise 314, and higher than the sixth tenon 313 to enter the fifth mortise 312. In reality, it is very difficult to form a water head height higher than the seventh tenon 315 or even the sixth tenon 313. Therefore, this utility model can effectively block external rainwater from entering the tongue and groove; it can also effectively prevent water vapor from intruding into the core material 3.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A novel wall sandwich panel, characterized in that, It includes a metal panel (1) and a metal back plate (2), and a core material (3) is provided between the metal panel (1) and the metal back plate (2). The first side of the core material (3) is provided with a female tongue and groove joint, and the second side opposite to the first side is provided with a male tongue and groove joint. The female tongue and groove joint is provided with a first tenon (300), a first mortise (301), a second tenon (302), a second mortise (303), a third tenon (304), a third mortise (305), and a fourth tenon (306) in sequence from the metal back plate (2) to the metal front plate (1); the male tongue and groove joint is provided with a fourth mortise (310), a fifth tenon (311), a fifth mortise (312), a sixth tenon (313), a sixth mortise (314), a seventh tenon (315), and a seventh mortise (316) in sequence from the metal back plate (2) to the metal front plate (1); The first tenon (300) is fitted with the fourth mortise (310), the second tenon (302) is fitted with the fifth mortise (312), the third tenon (304) is fitted with the sixth mortise (314), the fourth tenon (306) is fitted with the seventh mortise (316), the fifth tenon (311) is fitted with the first mortise (301), the sixth tenon (313) is fitted with the second mortise (303), and the seventh tenon (315) is fitted with the third mortise (305). The metal panel (1) is bent into an inverted J-shape, and a sixth tenon (313), a seventh tenon (315) and a sixth mortise (314) are formed at the middle of the two ends of the inverted J-shape; a water guide groove (317) is formed between the sixth mortise (314) and the seventh mortise (316).

2. The novel sandwich wall panel according to claim 1, characterized in that, The metal back plate (2) covers the first tenon (300), the first mortise (301), the fourth mortise (310) and the fifth tenon (311), and the metal front panel (1) covers one side of the fourth tenon (306), the third mortise (305), the third tenon (304), the second mortise (303), the seventh mortise (316) and the second tenon (302).

3. The novel sandwich wall panel according to claim 1, characterized in that, The first tenon (300) and the second tenon (302) are at the same height; the height difference between the third tenon (304) and the second tenon (302) is ΔH1; the height difference between the top surface of the fourth tenon (306) and the second tenon (302) is ΔH2, and ΔH2 is 1.1 to 1.3 times ΔH1; the depth difference between the first mortise (301) and the second mortise (303) is Δh1; the depth difference between the first mortise (301) and the third mortise (305) is Δh2, and Δh2 is 4.0 to 4.5 times Δh1.

4. A novel wall sandwich panel according to claim 3, characterized in that, The ΔH is 20-25 mm; the Δh1 is 5-7 mm.

5. A novel wall sandwich panel according to claim 1, characterized in that, The cross-sectional shape of the first mortise (301), the second mortise (303), and the third mortise (305) is triangular.

6. A novel wall sandwich panel according to claim 1, characterized in that, The height of the first tenon (300) is greater than the depth of the fourth mortise (310), and the height of the fourth tenon (306) is greater than the depth of the seventh mortise (316).

7. A novel wall sandwich panel according to claim 1, characterized in that, The seventh tenon (315) is covered with a rubber sleeve (4).

8. A novel wall sandwich panel according to claim 1, characterized in that, The opening width of the water guide channel (317) on the side near the metal panel (1) is 4-5 mm; the slope of the water guide channel (317) from the metal back plate (2) to the metal panel (1) is 2%.

9. A novel wall sandwich panel according to claim 1, characterized in that, The male tongue and groove joint is fitted with a screw (5), and a washer (6) is provided in the sixth mortise (314). The washer (6) has an L-shaped cross section. The screw (5) passes through the washer (6), the sixth tenon (313) and the core material (3) of the male tongue and groove joint in sequence.

10. A novel wall sandwich panel according to claim 9, characterized in that, The sixth tenon (313) has screw positioning grooves (3130) on both sides of the tenon body. The opening direction of the screw positioning grooves (3130) is towards the metal panel (1), and the screw (5) passes through the screw positioning grooves (3130).

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