Anti-overflow glue door body structure

Abstract

The utility model discloses a kind of anti-glue overflow door body structure, relate to door body structure field.Anti-glue overflow door body structure includes first door body and second door body, aluminum plate, sealing rubber strip and structural adhesive layer;Aluminum plate includes first plate body and second plate body, second plate body is set with first plate body and is folded bending.Cover the second plate body of aluminum plate after bending, the convex part of second door body is formed Physical shelter, and cooperate sealing rubber strip and abut against second plate body edge and first door body, to block the path of structural adhesive layer overflow to appearance in manufacturing process, avoid the problem that glue overflow affects beautiful;Sealing rubber strip bears edge sealing function, to replace traditional aluminum alloy profile edge, reduce material cost and processing complexity;Through the abutment design of sealing rubber strip and second plate body, compensate the gap generated by structural adhesive layer solidification shrinkage, avoid the problem of leakage caused by glue body aging again cracking, improve the long-term sealing and reliability of door body structure.

Description

Technical Field

[0001] This utility model relates to the field of door structure, specifically to a door structure that prevents glue spillage. Background Technology

[0002] Currently, aluminum panels are typically installed on door surfaces using structural adhesive bonding. However, gaps easily appear at the edges of the aluminum panels due to adhesive overflow or shrinkage during curing, severely affecting the product's aesthetics and sealing performance. To conceal this defect, traditional solutions involve adding aluminum alloy profiles to the sides of the aluminum panels or repairing the adhesive seams. However, aluminum alloy profiles significantly increase material and processing costs, as well as structural complexity; while adhesive seam repair only temporarily improves the visual appearance and cannot solve the problem of adhesive leakage and gaps caused by the adhesive aging and subsequent cracking. Utility Model Content

[0003] In view of this, the present invention provides an anti-overflow glue door structure to solve the problems mentioned in the background art.

[0004] This utility model provides a door structure to prevent glue spillage, including a first door body and a second door body, an aluminum plate, a sealing strip and a structural adhesive layer;

[0005] The first door body and the second door body are fixed together to form the door body, and one side of the second door body protrudes out of the second door body;

[0006] The aluminum plate includes a first plate and a second plate. The first plate covers the outer wall of the second door. The second plate is bent to the first plate. The second plate extends along a first direction and covers the protruding part of the second door on the side opposite to the first door.

[0007] The sealing strip is fixedly installed on the outer wall of the second door body, and one end of the sealing strip abuts against the first door body, and the other end abuts against the side of the second plate body away from the first plate body;

[0008] The first plate and the second plate are bonded to the outer wall of the second door through the structural adhesive layer.

[0009] Beneficial effects: Bending the second aluminum plate to cover the protruding part of the second door body creates a physical barrier. This, combined with a sealing strip, abuts against the edge of the second plate and the first door body, blocking the path of structural adhesive overflow to the exterior surface during manufacturing, thus avoiding the aesthetic problem of excess adhesive. The structural adhesive layer is only used for bonding the first plate, the second plate, and the outer wall of the second door body. The sealing strip provides edge sealing, replacing traditional aluminum alloy profile edging, reducing material costs and processing complexity. The abutting design between the sealing strip and the second plate compensates for gaps caused by the curing shrinkage of the structural adhesive layer, preventing leaks caused by cracking after adhesive aging, and improving the long-term sealing and reliability of the door structure.

[0010] In some embodiments, the bending height of the second plate along the first direction is 0.2mm-0.5mm greater than the height of the second door along the first direction.

[0011] Beneficial effects: By setting the bending height of the second panel to be 0.2mm-0.5mm greater than the height of the second door along the first direction, reasonable compensation space is reserved for the curing and shrinkage of the structural adhesive layer. When the structural adhesive layer cures and shrinks, the second panel will not create a height difference gap with the second door due to shrinkage, ensuring that the second panel is always in close contact with the sealing strip. This avoids edge gap problems caused by dimensional deviations, while also ensuring the fit between the aluminum panel and the door, and improving structural stability.

[0012] In some embodiments, the thickness of the mounting surface of the second door body along the first direction is provided with a first reduction value T1, and the bending height H of the second plate body along the first direction satisfies:

[0013] H = T1 + δ;

[0014] Where δ is 0.2mm-0.5mm.

[0015] Beneficial effects: Specifically, the relationship between the bending height H of the second panel and the first reduction value T1 of the second door is set to achieve precise matching between the aluminum plate size and the door processing error; T1 is used as the thickness reduction value to compensate for the installation surface thickness of the second door, and δ reserves the allowance for structural adhesive shrinkage and assembly error, thereby ensuring that the bending height of the second panel always covers the installation surface of the second door, avoiding edge gaps caused by fluctuations in the door processing dimensions, improving the standardization and adaptability of door product quality and the assembly qualification rate.

[0016] In some embodiments, the first plate and the second plate have the same thickness; the second door body has a second reduction value T2 along the mounting surface perpendicular to the first direction, and T2 is greater than the thickness of the second plate body by 0.5mm-1mm.

[0017] Beneficial effects: The thickness of the second door body along the mounting surface perpendicular to the first direction is set with a second reduction value T2, and T2 is greater than the thickness of the second plate by 0.5mm-1mm; this design can reserve sufficient coating space for the structural adhesive layer in the vertical direction; on the one hand, it avoids hard contact interference between the aluminum plate and the door mounting surface, ensuring the smooth assembly of the aluminum plate; on the other hand, it provides adhesive space for the structural adhesive layer, reducing the risk of the adhesive layer overflowing to the edge due to limited space, while ensuring the uniformity of the adhesive layer thickness and improving the bonding reliability.

[0018] In some embodiments, the sealing strip has a first rounded corner surface at one end near the second plate, and the second plate has a second rounded corner surface on the side near the sealing strip, wherein the first rounded corner surface and the second rounded corner surface are conformally overlapped.

[0019] Beneficial effects: The sealing strip and the second plate are respectively equipped with a first rounded curved surface and a second rounded curved surface, and the two overlap in a conformal manner, which optimizes the edge sealing effect and appearance quality; the rounded curved surface design avoids the stress concentration problem of traditional right-angle edges and reduces the risk of contact damage during assembly; the conformal overlap setting helps to make the contact area between the sealing strip and the second plate larger and the fit tighter, further blocking the path of gap formation, while the rounded appearance transition helps to improve the visual aesthetics of the door.

[0020] In some embodiments, the second rounded curved surface of the second plate body overlaps and snaps inward on the inner side of the first rounded curved surface of the sealing strip.

[0021] Beneficial effects: The second rounded curved surface of the second plate is interlocked with the first rounded curved surface of the sealing strip, forming an interlocking overlap structure, which enhances the connection stability between the two. This design utilizes the mutual constraint of the curved surfaces to prevent relative displacement between the sealing strip and the second plate due to vibration, temperature changes, etc. during long-term use, ensuring that the seal does not fail. At the same time, the interlocking structure hides the overlap edge, avoiding exposed gaps that affect aesthetics and improving the overall integrity and sealing performance of the structure.

[0022] In some embodiments, the sealing strip is fixed to the joint between the first door body and the second door body by an adhesive layer.

[0023] Beneficial effects: The sealing strip is fixed to the joint between the first and second door bodies through the adhesive layer, which further enhances the installation stability of the sealing strip. Compared with the method of fixing by pressure alone, the adhesive layer ensures that the sealing strip will not fall off or shift during long-term use, and continues to play a sealing role. This avoids problems such as edge leakage, air and water ingress caused by loose sealing strips, and improves the durability of the door structure.

[0024] In some embodiments, the sealing strip is configured as a silicone rubber component or an EPDM rubber component.

[0025] Beneficial effects: Both silicone rubber and EPDM rubber have good aging resistance, temperature resistance and elasticity, and can resist the erosion of environmental factors such as ultraviolet rays, humidity and temperature changes for a long time; they solve the problem of easy aging and cracking of traditional adhesive joint repair materials; the excellent elasticity of both allows the sealing strip to maintain a tight contact with the second plate, compensate for the small gaps caused by assembly errors and structural adhesive shrinkage, and ensure stable long-term sealing effect.

[0026] In some embodiments, the structural adhesive layer is a polyurethane structural adhesive layer with a thickness of 0.8-1.5 mm.

[0027] Beneficial effects: The structural adhesive layer uses polyurethane structural adhesive with a thickness of 0.8-1.5mm, balancing bonding strength and anti-overflow effect; the polyurethane structural adhesive has high bonding strength, aging resistance and good elasticity, which can ensure a firm connection between the aluminum plate and the door body; the 0.8-1.5mm thickness design can ensure sufficient bonding area and strength, while avoiding gaps caused by excessive curing shrinkage due to excessive adhesive layer thickness, and reducing the risk of adhesive layer overflow, thus improving bonding reliability and appearance quality.

[0028] In some embodiments, the coating area of ​​the structural adhesive layer is provided with a distance of at least 3 mm from the edge of the second plate away from the first plate.

[0029] Beneficial effects: By leaving a gap of at least 3mm between the structural adhesive layer coating area and the edge of the second panel, the risk of adhesive overflow is controlled from the manufacturing coating stage; the gap of more than 3mm provides a buffer space for the flow of the structural adhesive layer during the curing process, so that even if there is a small amount of adhesive flow, it will not overflow onto the edge appearance surface of the second panel; at the same time, it avoids the problem of exposed curing shrinkage gaps caused by direct contact of structural adhesive with the edge, ensuring that the edge area is clean and beautiful, reducing the number of subsequent repair processes, and lowering processing costs. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the anti-overflow glue door structure according to an embodiment of the present utility model;

[0032] Figure 2for Figure 1 A magnified view of a portion of point A in the middle.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. First door body; 2. Sealing strip; 3. Second door body; 401. First panel; 402. Second panel; 5. Structural adhesive layer. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the existing aluminum panel installation process for doors, gaps and appearance defects are caused by excess structural adhesive or shrinkage at the edges of the aluminum panels. Existing solutions, such as using aluminum alloy profiles to cover the gaps and beautifying the adhesive seams, are either costly or fail to overcome the problem of adhesive leakage.

[0037] This embodiment aims to provide a low-cost, high-reliability anti-adhesion door structure that eliminates adhesive overflow and leakage while eliminating the need for additional profiles. Through the interplay between the aluminum plate bending design and the sealing strip, physical coverage and enhanced sealing of the aluminum plate edges are achieved.

[0038] The following is combined with Figure 1 and Figure 2 The following describes embodiments of the present invention.

[0039] According to an embodiment of this utility model, an anti-overflow glue door structure is provided, see [link to relevant documentation]. Figure 1 The anti-overflow adhesive door structure includes a first door body 1 and a second door body 3, an aluminum plate, a sealing strip 2, and a structural adhesive layer 5; the first door body 1 and the second door body 3 are fixed together to form the door body, and one side of the second door body 3 protrudes out of the second door body 3.

[0040] In the specific manufacturing process, both the first door body 1 and the second door body 3 can be made of metal plates. The protruding part of the second door body 3 can be formed by bending the metal plate. The protruding part is set as a cuboid structure. In the specific bending process, it can be formed by bending twice with a bending machine. The bent edge is connected to the side of the first door body 1.

[0041] In this embodiment, see Figure 1 and Figure 2The aluminum plate includes a first plate 401 and a second plate 402. The first plate 401 covers the outer wall of the second door 3, and the second plate 402 is bent and set with the first plate 401. The second plate 402 extends along a first direction and covers the protruding part of the second door 3 on the side away from the first door 1. The sealing strip 2 is fixedly set on the outer wall of the second door 3, and one end of the sealing strip 2 abuts against the first door 1, and the other end abuts against the side of the second plate 402 away from the first plate 401. The first plate 401 and the second plate 402 are bonded to the outer wall of the second door 3 by a structural adhesive layer 5.

[0042] The anti-overflow adhesive door structure provided in this embodiment involves bending the second plate 402 of the aluminum plate to cover the protruding part of the second door 3, forming a physical barrier. This, combined with a sealing strip 2, abuts against the edge of the second plate 402 and the first door 1, blocking the path of the structural adhesive layer 5 overflowing to the exterior surface during manufacturing, thus avoiding the problem of adhesive overflow affecting aesthetics. The structural adhesive layer 5 is only used for bonding the first plate 401, the second plate 402, and the outer wall of the second door 3. The sealing strip 2 provides edge sealing, replacing the traditional aluminum alloy profile edging, reducing material costs and processing complexity. The abutting design between the sealing strip 2 and the second plate 402 compensates for gaps caused by the curing shrinkage of the structural adhesive layer 5, preventing leakage caused by cracking again after adhesive aging, and improving the long-term sealing performance and reliability of the door structure.

[0043] In a specific embodiment, the bending height of the second plate 402 along the first direction is 0.2mm-0.5mm greater than the height of the second door 3 along the first direction. By setting the bending height of the second plate 402 to be 0.2mm-0.5mm greater than the height of the second door 3 along the first direction, a reasonable compensation space is reserved for the curing shrinkage of the structural adhesive layer 5.

[0044] With this solution, the second plate 402 located on the outside has a more reasonable height range. When the structural adhesive layer 5 cures and shrinks, the second plate 402 will not have a height difference gap with the second door 3 due to shrinkage. This ensures that the second plate 402 is always in close contact with the sealing strip 2, avoiding edge gap problems caused by dimensional deviations. At the same time, it ensures the fit between the aluminum plate and the door body and improves structural stability.

[0045] In some embodiments, the thickness of the mounting surface of the second door body 3 along the first direction is provided with a first reduction value T1, and the bending height H of the second plate body 402 along the first direction satisfies H=T1+δ; where δ is 0.2mm-0.5mm. This solution specifically sets the relationship between the bending height H of the second plate body 402 and the first reduction value T1 of the second door body 3 to achieve precise adaptation between the aluminum plate size and the door body processing error; T1 serves as the thickness reduction value to compensate for the mounting surface thickness of the second door body 3, and δ reserves the allowance for structural adhesive shrinkage and assembly error, thereby ensuring that the bending height of the second plate body 402 always covers the mounting surface of the second door body 3, avoiding edge gaps caused by fluctuations in the door body processing dimensions, improving the standardization adaptability of door body product quality and the assembly qualification rate.

[0046] In some embodiments, the first plate 401 and the second plate 402 have the same thickness; the second door 3 has a second reduction value T2 along the mounting surface perpendicular to the first direction, where T2 is 0.5mm-1mm greater than the thickness of the second plate 402. By setting the second reduction value T2 along the mounting surface perpendicular to the first direction, and T2 being 0.5mm-1mm greater than the thickness of the second plate 402, this design allows for sufficient coating space for the structural adhesive layer 5 in the vertical direction. On the one hand, it avoids hard contact interference between the aluminum plate and the door mounting surface, ensuring stable assembly of the aluminum plate; on the other hand, it provides adhesive space for the structural adhesive layer 5, reducing the risk of adhesive overflowing to the edges due to limited space, while ensuring the uniformity of adhesive layer thickness and improving bonding reliability.

[0047] In a specific embodiment, the bending angle between the first plate 401 and the second plate 402 is 88°-92°, preferably 90°; the inner radius of the bend is ≤0.3mm.

[0048] In some embodiments, the sealing strip 2 has a first rounded corner surface at one end near the second plate 402, and the second plate 402 has a second rounded corner surface on the side near the sealing strip 2. The first rounded corner surface and the second rounded corner surface are conformally overlapped. By providing the first rounded corner surface and the second rounded corner surface on the sealing strip 2 and the second plate 402 respectively, and having them conformally overlapped, the edge sealing effect and appearance quality can be optimized. The rounded corner surface design avoids the stress concentration problem of traditional right-angle edges and reduces the risk of contact damage during assembly. The conformal overlap setting helps to make the contact area between the sealing strip 2 and the second plate 402 larger and the fit tighter, further blocking the path of gap formation. At the same time, the rounded appearance transition helps to improve the visual aesthetics of the door.

[0049] In some embodiments, the second rounded curved surface of the second plate 402 overlaps and is internally fastened to the inner side of the first rounded curved surface of the sealing strip 2. By having the second rounded curved surface of the second plate 402 overlap the inner side of the first rounded curved surface of the sealing strip 2, an internally fastened overlap structure is formed, enhancing the connection stability between the two. This design utilizes the mutual constraint of the curved surfaces to prevent relative displacement between the sealing strip 2 and the second plate 402 due to vibration, temperature changes, etc., during long-term use, ensuring that the seal remains intact. Simultaneously, the internally fastened structure conceals the overlap edge, avoiding exposed gaps that affect aesthetics and improving the overall integrity and sealing performance of the structure.

[0050] In the specific design and manufacturing implementation, the radius of curvature R of the first rounded surface of the sealing strip 2 and the bending height H of the second plate 402 along the first direction satisfy R≤0.5H.

[0051] In some embodiments, the sealing strip 2 is fixed to the joint between the first door body 1 and the second door body 3 by an adhesive layer to enhance the installation stability of the sealing strip 2. Compared with the method of fixing by abutting pressure alone, the adhesive layer ensures that the sealing strip 2 will not fall off or shift during long-term use, and continues to play a sealing role. This avoids problems such as edge leakage, air and water ingress caused by loosening of the strip, and improves the durability of the door structure.

[0052] In some embodiments, the sealing strip 2 is configured as a silicone rubber component or an EPDM rubber component. Both silicone rubber and EPDM rubber have good aging resistance, temperature resistance, and elasticity, and can resist the erosion of environmental factors such as ultraviolet radiation, humidity, and temperature changes for a long time; this solves the problem of easy aging and cracking of traditional adhesive joint repair materials; the excellent elasticity of both allows the sealing strip 2 to maintain a tight contact with the second plate 402, compensating for the small gaps caused by assembly errors and structural adhesive shrinkage, and ensuring a stable long-term sealing effect.

[0053] In some embodiments, the structural adhesive layer 5 is a polyurethane structural adhesive layer 5 with a thickness of 0.8-1.5mm. This setting helps to balance the bonding strength and the anti-overflow effect. The polyurethane structural adhesive has high bonding strength, aging resistance and good elasticity, which can ensure a firm connection between the aluminum plate and the door body. The 0.8-1.5mm thickness design can ensure sufficient bonding area and strength, while avoiding gaps caused by excessive curing shrinkage due to excessive adhesive layer thickness. At the same time, it reduces the risk of adhesive layer overflow and improves bonding reliability and appearance quality.

[0054] In some embodiments, the coating area of ​​the structural adhesive layer 5 is provided with a distance of at least 3 mm from the edge side of the second plate 402 away from the first plate 401, so as to control the risk of adhesive overflow during the manufacturing coating stage; the distance of more than 3 mm provides a buffer space for the flow of the structural adhesive layer 5 during the curing process, so that even if there is a small amount of adhesive flow, it will not overflow to the edge appearance surface of the second plate 402; at the same time, it avoids the problem of curing shrinkage gaps caused by direct contact of structural adhesive with the edge, ensuring that the edge area is neat and beautiful, reducing the subsequent repair process, and reducing processing costs.

[0055] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An anti-squiggle door structure, characterized by, It includes a first door body (1) and a second door body (3), an aluminum plate, a sealing strip (2) and a structural adhesive layer (5); The first door body (1) and the second door body (3) are fixed together to form the door body, and one side of the second door body (3) protrudes out of the second door body (3); The aluminum plate includes a first plate (401) and a second plate (402). The first plate (401) covers the outer wall of the second door (3). The second plate (402) is bent to the first plate (401). The second plate (402) extends along a first direction and covers the side of the protruding part of the second door (3) opposite to the first door (1). The sealing strip (2) is fixedly installed on the outer wall surface of the second door body (3), and one end of the sealing strip (2) abuts against the first door body (1), and the other end abuts against the side of the second plate body (402) away from the first plate body (401); The first plate (401) and the second plate (402) are bonded to the outer wall of the second door (3) by the structural adhesive layer (5).

2. The anti-glue spill door structure of claim 1, wherein, The bending height of the second plate (402) along the first direction is 0.2mm-0.5mm greater than the height of the second door (3) along the first direction.

3. The anti-glue-out door structure of claim 1, wherein, The second door body (3) has a first reduction value T1 on the thickness of its mounting surface along the first direction, and the bending height H of the second plate body (402) along the first direction satisfies: H = T1 + δ; Where δ is 0.2mm-0.5mm.

4. The anti-glue-out door structure of claim 1, wherein The first plate (401) and the second plate (402) have the same thickness; the second door (3) has a second reduction value T2 along the mounting surface perpendicular to the first direction, which is 0.5mm-1mm greater than the thickness of the second plate (402).

5. The anti-glue-out door structure of claim 1, wherein The sealing strip (2) has a first rounded corner surface at one end near the second plate (402), and the second plate (402) has a second rounded corner surface on one side near the sealing strip (2). The first rounded corner surface and the second rounded corner surface are conformally overlapped.

6. The anti-bleed door structure of claim 5, wherein The second rounded curved surface of the second plate (402) overlaps and is set inside the first rounded curved surface of the sealing strip (2).

7. The anti-glue-out door structure of claim 1, wherein The sealing strip (2) is fixed to the joint between the first door body (1) and the second door body (3) by an adhesive layer.

8. The anti-glue-out door structure of claim 1, wherein The sealing strip (2) is made of silicone rubber or EPDM rubber.

9. The anti-glue-out door structure of claim 1, wherein The structural adhesive layer (5) is a polyurethane structural adhesive layer (5) with a thickness of 0.8-1.5 mm.

10. The anti-glue-out door structure of claim 1, wherein The coating area of ​​the structural adhesive layer (5) is provided with a distance of at least 3 mm from the edge of the second plate (402) away from the first plate (401).

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