Stable outer wall deformation joint cover plate

By using a locking mechanism with limiting and displacement, combined with the design of an aluminum alloy center plate and a rubber waterproof strip, the problem of high installation cost, easy failure, and lack of durability of traditional exterior wall expansion joint covers is solved, achieving the requirements of stability and green construction, and adapting to the deformation needs of buildings.

CN224478581UActive Publication Date: 2026-07-10GUANGZHOU NO 1 CONSTR ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU NO 1 CONSTR ENG
Filing Date
2025-06-13
Publication Date
2026-07-10

Smart Images

  • Figure CN224478581U_ABST
    Figure CN224478581U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of outer wall deformation joint cover plate, concretely relates to a strong stability's outer wall deformation joint cover plate, is applied to the deformation joint of outer wall wall body, is provided with the heat preservation board on the wall body, is provided with the water stop between two wall bodies, and the outside of water stop is provided with aluminium alloy center plate, its characterized in that, the outer wall deformation joint cover plate still includes limiting mechanism and displacement mechanism. Through limiting mechanism adopts the lock type fixed, need not complex installation tool and technology, the later period maintenance is especially convenient, is convenient to check, replace parts etc. to deformation joint, and the aluminium alloy center plate can keep the stability of whole when the building telescopic deformation, ensure that the function of deformation joint normally plays, solve the technical problem that general traditional deformation joint cover plate manual cost is big, is not durable, is easy to waterproof failure, does not meet the green construction requirement.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of exterior wall expansion joint cover plates, specifically to an exterior wall expansion joint cover plate with high stability. Background Technology

[0002] External wall expansion joints play a crucial role in building structures, primarily designed to withstand deformation caused by external factors such as temperature and humidity changes, and earthquakes. Buildings expand and contract in environments with alternating temperatures. Exterior wall expansion joints effectively separate different parts of the building, preventing cracking or deformation due to temperature variations. Expansion joint covers, placed over the expansion joints, provide protection, preventing external environmental erosion of the structure within the joint, reducing water seepage and corrosion, and extending the building's lifespan.

[0003] Traditional metal-sealed expansion joints rely on adhesive or bolts to fix the cover plate to the base layer, which is prone to widening gaps due to material aging or vibration, leading to water seepage. Furthermore, metal materials are susceptible to corrosion in coastal or high-humidity environments, resulting in high maintenance costs. On-site cutting and welding are often required, demanding high precision and incurring significant labor costs. Rubber-sealed expansion joints, on the other hand, are susceptible to hardening and cracking due to UV radiation and ozone, requiring frequent replacement and lacking durability. They are only suitable for small displacement deformations and cannot cope with severe settlement or seismic displacement. Exposed rubber strips are prone to dust accumulation and discoloration, affecting the building facade. Asphalt-filled expansion joints soften and flow at high temperatures and become brittle at low temperatures, leading to waterproofing failure. Heating asphalt releases harmful gases, which does not meet green construction requirements, and damaged asphalt requires complete removal and refilling, resulting in long repair cycles. Therefore, we propose a highly stable exterior wall expansion joint cover plate. Utility Model Content

[0004] To address the aforementioned issues, a highly stable exterior wall expansion joint cover is provided. It employs a locking mechanism for fixation, eliminating the need for complex installation tools and processes. This also facilitates subsequent maintenance, allowing for easy inspection and replacement of components. Furthermore, the aluminum alloy center plate maintains overall stability during building expansion and contraction, ensuring the expansion joint functions properly. This solution overcomes the technical problems of traditional expansion joint covers, such as high labor costs, lack of durability, susceptibility to waterproofing failure, and failure to meet green construction requirements.

[0005] To address the problems of existing technologies, this utility model provides a highly stable exterior wall expansion joint cover plate, applied to the expansion joint of an exterior wall. The wall is equipped with an insulation board, and a waterstop is installed between two walls. An aluminum alloy center plate is installed on the outer side of the waterstop. The exterior wall expansion joint cover plate is characterized by further including a limiting mechanism and a displacement mechanism. A limiting mechanism is provided between the wall and the aluminum alloy center plate to restrict the waterstop and the aluminum alloy center plate to the wall. The limiting mechanism contains a displacement mechanism to assist the aluminum alloy center plate in coordinating with the expansion and contraction of the exterior wall expansion joint.

[0006] Preferably, the limiting mechanism includes a clamping mechanism, a waterproofing mechanism, and an anti-deviation mechanism; the clamping mechanism is disposed on the aluminum alloy center plate and is used to restrict the aluminum alloy center plate to the outside of the waterstop; the waterproofing mechanism is disposed on the clamping mechanism and is used to prevent rainwater from intruding between the aluminum alloy center plate and the waterstop; the anti-deviation mechanism is disposed on the clamping mechanism and is used to assist the clamping mechanism in stably restricting itself to the wall.

[0007] Preferably, the clamping mechanism includes an aluminum alloy anchor clamp, an expansion bolt, and an aluminum alloy clamping plate; the aluminum alloy anchor clamp is set on the waterstop; the expansion bolt passes through the waterstop and connects to the wall; the aluminum alloy clamping plate is connected to the aluminum alloy anchor clamp.

[0008] Preferably, the waterproofing mechanism includes a waterproof strip and a mounting groove; the waterproof strip is disposed between the aluminum alloy anchor clamp and the aluminum alloy plate; the mounting groove is provided on the side of the aluminum alloy plate near the waterproof strip, and the mounting groove is used to accommodate the waterproof strip in conjunction with the aluminum alloy plate.

[0009] Preferably, the anti-deviation mechanism includes a first rack and a second rack; the first rack is connected to an aluminum alloy anchor clamp; the second rack is connected to an aluminum alloy clamping plate, and the first rack and the second rack are mated together.

[0010] Preferably, the displacement mechanism includes a positioning mechanism and a translation mechanism; the positioning mechanism is disposed on the aluminum alloy anchor clamp and is used to help the aluminum alloy center plate and the aluminum alloy anchor clamp be bound together; the translation mechanism is disposed on the aluminum alloy center plate and is used to help the aluminum alloy center plate move horizontally in coordination with the expansion and contraction deformation of the wall expansion joint.

[0011] Preferably, the positioning mechanism includes a locking strip and a buckle; the locking strip is connected to the aluminum alloy anchor clamp; and the buckle is connected to the locking strip.

[0012] Preferably, the translation mechanism includes a connecting rod, a support plate, and an elastic reset component; the connecting rod slides through the left and right sides of the buckle, and one end of the connecting rod is connected to the aluminum alloy center plate; the support plate is connected to one end of the connecting rod and to the aluminum alloy center plate; the end of the connecting rod near the support plate is sleeved with the elastic reset component, and the two ends of the elastic reset component are connected to the buckle and the support plate respectively.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. The locking mechanism uses a locking system to fix the expansion joint, eliminating the need for complicated installation tools and processes. It also makes maintenance particularly convenient, facilitating the inspection and replacement of components. Furthermore, the aluminum alloy center plate maintains overall stability when the building expands or contracts, ensuring the expansion joint functions properly. This solves the technical problems of traditional expansion joint covers, such as high labor costs, lack of durability, easy waterproofing failure, and failure to meet green construction requirements.

[0015] 2. The aluminum alloy center plate is installed with the assistance of the displacement mechanism, which makes it easier for the aluminum alloy center plate to effectively absorb and buffer external pressure, preventing cracks or breaks due to excessive deformation. The elastic reset component can help the aluminum alloy center plate return to its original position after vibration or external force, which solves the technical problem that the expansion joint cover plate of the external wall is not easy to undergo permanent deformation under the influence of earthquakes and other factors. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the wall body, aluminum alloy center plate, and connection structure of a highly stable exterior wall expansion joint cover plate.

[0017] Figure 2 This is a three-dimensional schematic diagram of an aluminum alloy center plate and aluminum alloy anchor clamps and their connection structure for a highly stable exterior wall expansion joint cover.

[0018] Figure 3 This is a three-dimensional schematic diagram of an aluminum alloy anchor clamp and expansion bolt and their connection structure for a high-stability exterior wall expansion joint cover plate.

[0019] Figure 4 It is a type of exterior wall expansion joint cover with high stability. Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 5 It is a type of exterior wall expansion joint cover with high stability. Figure 2 Enlarged diagram of point B in the middle.

[0021] Figure 6 It is a type of exterior wall expansion joint cover with high stability. Figure 3 Enlarged diagram of point C in the middle.

[0022] The following are the labels in the diagram: 1. Wall; 11. Insulation board; 2. Waterstop; 21. Aluminum alloy center plate; 22. Aluminum alloy anchor; 23. Expansion bolt; 24. Aluminum alloy clamp; 25. Waterproof strip; 26. Installation groove; 27. First rack; 28. Second rack; 29. ​​Clamping strip; 210. Buckle; 211. Connecting rod; 212. Support plate; 213. Elastic reset component. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] See Figures 1-3 As shown, a highly stable exterior wall expansion joint cover is applied to the expansion joint of an exterior wall 1. The cover includes a wall 1, on which an insulation board 11 is installed. A waterstop 2 is installed between two walls 1, and an aluminum alloy center plate 21 is installed on the outer side of the waterstop 2. The exterior wall expansion joint cover further includes a limiting mechanism and a displacement mechanism. A limiting mechanism is provided between the wall 1 and the aluminum alloy center plate 21 to restrict the waterstop 2 and the aluminum alloy center plate 21 to the wall 1. A displacement mechanism is provided within the limiting mechanism to assist the aluminum alloy center plate 21 in coordinating with the expansion and contraction of the exterior wall expansion joint.

[0025] Specifically, during the installation of the exterior wall expansion joint cover, the waterstop 2 is first fixedly connected to the wall 1. Then, the aluminum alloy center plate 21 is installed on the wall 1 through a limiting mechanism, with the aluminum alloy center plate 21 limited to the outside of the waterstop 2. The aluminum alloy center plate 21 adopts a snap-lock fixing method, which can significantly improve installation efficiency, shorten the construction cycle, and facilitate subsequent maintenance operations, such as inspection of the expansion joint and replacement of components.

[0026] The locking structure ensures a tight connection between all components, guaranteeing the overall stability of the expansion joint during building expansion and contraction, effectively resisting the impact of external factors on its function. The displacement mechanism provides auxiliary limiting for the aluminum alloy center plate 21. When the external wall expansion joint cover plate undergoes expansion and contraction, the aluminum alloy center plate 21 can move horizontally, thereby maintaining the overall stability of the external wall expansion joint cover plate.

[0027] See Figures 1-5As shown, the limiting mechanism includes a clamping mechanism, a waterproofing mechanism, and an anti-deviation mechanism. The clamping mechanism is mounted on the aluminum alloy center plate 21 and is used to restrict the aluminum alloy center plate 21 to the outside of the waterstop 2. The waterproofing mechanism is mounted on the clamping mechanism and is used to prevent rainwater from entering between the aluminum alloy center plate 21 and the waterstop 2. The anti-deviation mechanism is mounted on the clamping mechanism and is used to assist the clamping mechanism in stably restricting itself to the wall 1. The clamping mechanism includes an aluminum alloy anchor 22, an expansion bolt 23, and an aluminum alloy clamping plate 24. The aluminum alloy anchor 22 is mounted on the waterstop 2. The expansion bolt 23... 3. The waterstop strip 2 is connected to the wall 1; the aluminum alloy clamp 24 is connected to the aluminum alloy anchor 22; the waterproof mechanism includes a waterproof strip 25 and a mounting groove 26; the waterproof strip 25 is set between the aluminum alloy anchor 22 and the aluminum alloy clamp 24; the aluminum alloy clamp 24 has a mounting groove 26 on the side near the waterproof strip 25, and the mounting groove 26 is used to cooperate with the aluminum alloy clamp 24 to place the waterproof strip 25; the anti-deviation mechanism includes a first rack 27 and a second rack 28; the first rack 27 is connected to the aluminum alloy anchor 22; the second rack 28 is connected to the aluminum alloy clamp 24, and the first rack 27 and the second rack 28 are connected.

[0028] Specifically, the aluminum alloy anchor clamp 22 has an E-shaped structure, and the outer sides of the two flanges of the aluminum alloy anchor clamp 22 away from the expansion joint have serrated structures; the aluminum alloy clamp plate 24 is F-shaped, and the inner sides of the two flanges of the aluminum alloy clamp plate 24 also have serrated structures. The waterproof strip 25 is made of rubber. The first toothed rack 27 and the second toothed rack 28 mesh with each other.

[0029] When installing the aluminum alloy center plate 21, it is first placed outside the waterstop 2, and then the aluminum alloy anchor clamp 22 is fixedly connected to the wall 1 using expansion bolts 23. At this time, the two sides of the aluminum alloy center plate 21 are temporarily restricted to the inside of the aluminum alloy anchor clamp 22 using a displacement mechanism, and then the aluminum alloy clamp plate 24 is connected to the aluminum alloy anchor clamp 22. Due to the matching of the E-shaped structure of the aluminum alloy anchor clamp 22 and the serrated design of its outer two wings with the F-shaped structure of the aluminum alloy clamp plate 24 and its inner serrated structure, the two are easy to anchor. During the anchoring process, the aluminum alloy clamp plate 24 drives the waterproof strip 25 to press against the aluminum alloy center plate 21. Because the waterproof strip 25 is made of rubber, it forms the first waterproof structure with the aluminum alloy center plate 21, which can effectively prevent rainwater from entering. At the same time, the drainage groove of the E-shaped structure of the aluminum alloy anchor clamp 22 can achieve rapid drainage, and the inner waterstop 2 further improves the waterproof effect. This combined design of prevention and drainage plays a protective role for the building.

[0030] When the aluminum alloy clamp 24 is anchored to the aluminum alloy anchor 22, the aluminum alloy clamp 24 drives the second rack 28 to engage with the first rack 27, thereby effectively preventing vertical displacement between the aluminum alloy anchor 22 and the aluminum alloy clamp 24. The locking mechanism, using a locking system, not only speeds up installation and significantly shortens the construction cycle, but also facilitates later inspections and component replacements of the expansion joint. Furthermore, the locking mechanism, composed of the aluminum alloy anchor 22, aluminum alloy clamp 24, and aluminum alloy center plate 21, tightly connects these components through a locking structure. Since the aluminum alloy anchor 22 and aluminum alloy clamp 24 are directly connected to the building, they maintain overall stability during building expansion and contraction, effectively resisting the influence of external factors on the expansion joint and ensuring its normal functioning.

[0031] See Figures 1-6 As shown, the displacement mechanism includes a positioning mechanism and a translation mechanism. The positioning mechanism is mounted on the aluminum alloy anchor clamp 22 and is used to help restrict the aluminum alloy center plate 21 and the aluminum alloy anchor clamp 22 together. The translation mechanism is mounted on the aluminum alloy center plate 21 and is used to help the aluminum alloy center plate 21 move horizontally in coordination with the expansion and contraction of the wall expansion joint. The positioning mechanism includes a locking strip 29 and a buckle 210. The locking strip 29 is connected to the aluminum alloy anchor clamp 22. The buckle 210 is connected to the locking strip 29. The translation mechanism includes a connecting rod 211, a support plate 212, and an elastic reset member 213. The connecting rod 211 slides through the left and right sides of the buckle 210, and one end of the connecting rod 211 is connected to the aluminum alloy center plate 21. The support plate 212 is connected to one end of the connecting rod 211 and the aluminum alloy center plate 21. The end of the connecting rod 211 near the support plate 212 is sleeved with the elastic reset member 213, and both ends of the elastic reset member 213 are connected to the buckle 210 and the support plate 212, respectively.

[0032] Specifically, the buckle 210 is made of deformable aluminum alloy, and the buckle 210 and the clip 29 can be engaged and connected. The elastic reset element 213 uses a spring as the implementing element.

[0033] When the aluminum alloy center plate 21 is fixed to the outside of the waterstop 2 using expansion bolts 23, and its two sides need to be temporarily confined to the inside of the aluminum alloy anchor clamps 22, first press the buckle 210 and the clamp strip 29 together. Utilize the deformable characteristics of the buckle 210 to achieve a tight engagement, thereby temporarily fixing the aluminum alloy center plate 21 between the two aluminum alloy anchor clamps 22. Subsequently, the anchoring operation of the aluminum alloy clamping plate 24 and the aluminum alloy anchor clamps 22 is performed, so that the aluminum alloy center plate 21 is securely clamped between them.

[0034] When the building's expansion joint undergoes horizontal expansion and contraction, the retaining strip 29 drives the buckle 210 to slide along the connecting rod 211, simultaneously pushing the elastic reset member 213 to contract and deform. This effectively absorbs and buffers external pressure, preventing the aluminum alloy center plate 21 from cracking or breaking due to excessive deformation, thereby extending its service life. Furthermore, the elastic reset member 213 helps the aluminum alloy center plate 21 return to its original position after vibration or external force, reducing permanent deformation caused by factors such as earthquakes.

[0035] Working Principle: When installing the exterior wall expansion joint cover, firstly, the waterstop 2 is fixed to the wall 1, and then the aluminum alloy anchor clamps 22 are connected to the wall 1 using expansion bolts 23. At this time, the clips 210 and clips 29 are aligned, temporarily positioning the aluminum alloy center plate 21 between the two aluminum alloy anchor clamps 22. After temporary positioning, the aluminum alloy center plate 21 is fixed between the aluminum alloy anchor clamps 22 and the aluminum alloy clips 24 through the anchoring operation of the aluminum alloy plate 24, thus completing the installation of the exterior wall expansion joint cover. The exterior wall expansion joint cover adopts a locking fixing method, with the aluminum alloy anchor clamps 22 and aluminum alloy plate 24 directly connected to the building, ensuring the overall structure remains stable during building expansion and contraction. Furthermore, the aluminum alloy center plate 21 is pressed between the two aluminum alloy base frames, maintaining a horizontal state during building expansion and contraction, meeting the building's displacement requirements and effectively adapting to deformation caused by temperature changes, foundation settlement, and other factors.

[0036] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A high-stability exterior wall expansion joint cover plate, applied to the expansion joint of an exterior wall (1), wherein an insulation board (11) is provided on the wall (1), a waterstop (2) is provided between two walls (1), and an aluminum alloy center plate (21) is provided on the outer side of the waterstop (2), characterized in that, The expansion joint cover plate of the exterior wall also includes a limiting mechanism and a displacement mechanism; A limiting mechanism is provided between the wall (1) and the aluminum alloy center plate (21) to restrict the waterstop (2) and the aluminum alloy center plate (21) to the wall (1); The limiting mechanism is equipped with a displacement mechanism to assist the aluminum alloy center plate (21) in cooperating with the expansion and contraction deformation of the external wall expansion joint.

2. The exterior wall expansion joint cover plate with high stability according to claim 1, characterized in that, The limiting mechanism includes a clamping mechanism, a waterproof mechanism, and an anti-deviation mechanism; The clamping mechanism is set on the aluminum alloy center plate (21) and is used to restrict the aluminum alloy center plate (21) to the outside of the waterstop (2); The waterproof mechanism is installed on the clamping mechanism and is used to prevent rainwater from entering between the aluminum alloy center plate (21) and the waterstop (2). An anti-deviation mechanism is installed on the clamping mechanism. The anti-deviation mechanism is used to assist the clamping mechanism in stabilizing and limiting the clamping mechanism on the wall (1).

3. The exterior wall expansion joint cover plate with high stability according to claim 2, characterized in that, The clamping mechanism includes an aluminum alloy anchor clamp (22), an expansion bolt (23), and an aluminum alloy clamping plate (24); An aluminum alloy anchor clamp (22) is installed on the waterstop (2); Expansion bolts (23) penetrate the waterstop (2) and connect to the wall (1); The aluminum alloy plate (24) is connected to the aluminum alloy anchor clamp (22).

4. A high-stability exterior wall expansion joint cover plate according to claim 2, characterized in that, The waterproofing mechanism includes a waterproof strip (25) and a mounting groove (26); A waterproof strip (25) is placed between the aluminum alloy anchor clamp (22) and the aluminum alloy clamp plate (24); An installation groove (26) is provided on the side of the aluminum alloy plate (24) near the waterproof strip (25). The installation groove (26) is used to accommodate the waterproof strip (25) on the aluminum alloy plate (24).

5. A high-stability exterior wall expansion joint cover plate according to claim 2, characterized in that, The anti-deviation mechanism includes a first rack (27) and a second rack (28); The first rack (27) is connected to the aluminum alloy anchor clamp (22); The second rack (28) is connected to the aluminum alloy plate (24), and the first rack (27) is connected to the second rack (28).

6. A high-stability exterior wall expansion joint cover plate according to claim 1, characterized in that, The displacement mechanism includes a positioning mechanism and a translation mechanism; The positioning mechanism is set on the aluminum alloy anchor clamp (22). The positioning mechanism is used to help the aluminum alloy center plate (21) and the aluminum alloy anchor clamp (22) be bound together. The translation mechanism is set on the aluminum alloy center plate (21). The translation mechanism is used to assist the aluminum alloy center plate (21) in moving horizontally in coordination with the expansion and contraction deformation of the wall expansion joint.

7. A high-stability exterior wall expansion joint cover plate according to claim 6, characterized in that, The positioning mechanism includes a clip (29) and a buckle (210); The clip (29) is connected to the aluminum alloy anchor clamp (22); The buckle (210) is connected to the card strip (29).

8. A high-stability exterior wall expansion joint cover plate according to claim 6, characterized in that, The translation mechanism includes a connecting rod (211), a support plate (212), and an elastic reset member (213); The connecting rod (211) slides through the left and right sides of the buckle (210), and one end of the connecting rod (211) is connected to the aluminum alloy center plate (21); The support plate (212) is connected to one end of the connecting rod (211), and the support plate (212) is connected to the aluminum alloy center plate (21); One end of the connecting rod (211) near the support plate (212) is sleeved with the elastic reset member (213), and the two ends of the elastic reset member (213) are connected to the buckle (210) and the support plate (212) respectively.