Roof expansion joint plate flashing component
By using vertical expansion joint plates and water-filled plate components at the roof expansion joints, combined with deformation V-shaped grooves and water-retaining components, the problem of poor waterproofing effect is solved, effective rainwater drainage and emissions are achieved, and operation and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421841999.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the prior art, the waterproofing effect at the roof expansion joint is poor, especially the connection between the wall and the concrete expansion joint pick plate is prone to cracking, resulting in water seepage, low pass rate of waterproof quality, and high later operation and maintenance costs.
The vertical expansion joint plate and water-filling plate member are adopted, combined with the deformation V-shaped groove and water-retaining component, and the gap is sealed through structural glue to achieve rainwater drainage and discharge and enhance waterproof performance.
It improves the waterproof performance of roof expansion joints, reduces water seepage, and reduces later operation and maintenance costs.
Smart Images
Figure CN223048329U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of construction engineering, and particularly to a flashing member for a roof expansion joint board. Background Art
[0002] At present, the waterproof effect at the expansion joints of the roof interface is not good, the qualified rate of waterproof quality is relatively low, less than 90%, especially for the roof design waterproofing of some high-rise buildings. The roof project is crucial for the whole project during the later use process. The waterproof process of the flashing of the roof expansion joint board has many procedures and high requirements, and it is a part where common quality problems occur frequently. Especially the connection part between the wall and the concrete expansion joint cantilever board is the key part of waterproofing. In the existing technology, caulking method is usually used for construction. Due to the expansion of the expansion joint reaching 2 - 3 cm, caulking cannot meet the requirements and is prone to cracking and water seepage.
[0003] When waterproofing the connection part between the wall and the concrete expansion joint cantilever board in the existing technology, a vertical expansion joint waterproof board is used to block the expansion joint part. There is a large gap between the bottom of the expansion joint waterproof board and the concrete expansion joint cantilever board. After caulking treatment, it is very easy to cause cracking at the caulking part during the expansion and contraction process of the expansion joint. Rainwater flows along the V-shaped groove of the expansion joint waterproof board to the concrete expansion joint cantilever board. At this time, when the caulking part cracks due to aging or displacement, it is very easy for the rainwater inside the wall and the V-shaped groove to enter the expansion joint, and it cannot meet the better waterproof requirements. Utility Model Content
[0004] This application provides a flashing member for a roof expansion joint board, which improves the waterproof performance, avoids the occurrence of water seepage phenomenon, and reduces the later operation and maintenance costs.
[0005] The flashing member for a roof expansion joint board provided by this application includes: a vertical expansion joint board connected to the two side walls and used to cover the expansion joint, and a flashing board installed on the expansion joint cantilever board;
[0006] A deformed V-shaped groove extending into the interior of the expansion joint is provided on the vertical expansion joint board;
[0007] A flashing groove extending into the interior of the expansion joint is provided on the flashing board, and the bottom of the deformed V-shaped groove is located inside the flashing groove;
[0008] Water retaining components are oppositely arranged at the inner corner connection of the two side walls and the expansion joint cantilever board. The two water retaining components press against the plane of the flashing board and are respectively located on both sides of the bottom of the vertical expansion joint board;
[0009] The gaps between the vertical expansion joint board and the two water retaining components and the two side walls are all sealed with structural adhesive.
[0010] In this application, rainwater flows onto the flashing through the wall and the deformed V-shaped groove. The flashing is protected on the cantilever slab of the expansion joint. At the same time, the water retaining component prevents rainwater from flowing along the wall, improving the overall waterproof performance within the normal expansion range and reducing the later operation and maintenance costs.
[0011] In a specific feasible implementation, water retaining plates are vertically assembled on both sides of the walls, and the vertical expansion joint plate buckles the water retaining plates on both sides, further enhancing the water retaining effect.
[0012] In a specific feasible implementation, bending lug plates are symmetrically arranged on both sides of the vertical expansion joint plate. The setting of the bending lug plates creates a small gap between both sides of the vertical expansion joint plate and the wall. Sealed with structural adhesive, it can effectively achieve the waterproof effect. And under the state of rainwater impacting obliquely, the internal water retaining plate and structural adhesive provide double protection, making all the rainwater fall onto the flashing for drainage.
[0013] In a specific feasible implementation, the width of the bending lug plate is the same as the thickness of the water retaining plate. By tightly pressing, the risk of water seepage is reduced.
[0014] In a specific feasible implementation, the water retaining component includes: a water retaining square bar and a flashing ear plate covering the water retaining square bar;
[0015] The water retaining square bar is connected to the corresponding walls on both sides. Through the setting of the water retaining component, it can effectively block the seepage of the wall and achieve complete drainage to the flashing.
[0016] In a specific feasible implementation, both the water retaining square bar and the water retaining plate are made of wooden board and / or plastic board. The materials are relatively convenient to obtain, reducing the construction cost.
[0017] In a specific feasible implementation, both the water retaining square bar and the water retaining plate are connected to the corresponding walls on both sides by cement nails. The installation method is simple. After installing the water retaining square bar and the water retaining plate, structural adhesive is injected into the gap with the wall.
[0018] In a specific feasible implementation, the length of the flashing is the same as the width of the cantilever slab of the expansion joint. The flashing realizes a more comprehensive drainage.
[0019] In a specific feasible implementation, the flashing is a plate body with a T-shaped structure, and the flashing is connected with a vertical plate. The vertical plate forms the flashing groove along one side of the T-shaped protruding part of the flashing. Through the setting of the flashing groove, the rainwater inside the deformed V-shaped groove is completely drained onto the flashing for drainage.
[0020] In a specific feasible implementation, the structural adhesive is silicone sealant. The waterproof performance of caulking and sealing is stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 FIG. is an installation schematic diagram of the flashing member for the roof expansion joint board provided by the embodiment of the present application;
[0022] Figure 2 FIG. is a structural schematic diagram of the flashing member for the roof expansion joint board provided by the embodiment of the present application;
[0023] Figure 3 FIG. is a structural schematic diagram of the flashing board provided by the embodiment of the present application;
[0024] Figure 4 FIG. is a structural schematic diagram of the flashing ear plate provided by the embodiment of the present application.
[0025] Reference numerals in the drawings:
[0026] Wall - 10, expansion joint - 11;
[0027] Expansion joint cantilever slab - 20;
[0028] Water retaining plate - 30;
[0029] Vertical expansion joint board - 40, bent ear plate - 41, deformation V - shaped groove - 42;
[0030] Flashing board - 50, vertical plate - 51, flashing groove - 52;
[0031] Flashing ear plate - 60, water retaining square bar - 61;
[0032] Structural adhesive - 70. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0033] In order to make the objectives, technical solutions and advantages of the present disclosure more clear and understandable, the present disclosure will be further described in detail below with reference to specific embodiments and the accompanying drawings.
[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the ordinary meanings understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar terms used in one or more embodiments of this specification do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Words such as "upper", "lower", "left", "right" are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0035] To facilitate the understanding of the roof expansion joint board flashing member provided by the embodiments of the present application, first, its application scenario will be described. At present, the waterproof effect of the expansion joint at the roof interface is not good, the qualified rate of waterproof quality is relatively low, less than 90%. Especially for the roof design waterproofing of some high-rise buildings, the roof project is crucial for the whole project during the later use process. The waterproof process of the roof expansion joint board flashing has many procedures and high requirements, and it is a part where common quality problems occur frequently. Especially the connection part between the wall and the concrete expansion joint cantilever slab is the key part of waterproofing. In the prior art, the caulking method is usually used for construction. Since the expansion of its expansion joint reaches 2-3 cm, caulking cannot meet the requirements and is prone to cracking and water seepage. When waterproofing operations are carried out on the connection part between the wall and the concrete expansion joint cantilever slab, a vertical expansion joint waterproof board is used to block the expansion joint. There is a large gap between the bottom of the expansion joint waterproof board and the concrete expansion joint cantilever slab. After caulking treatment, it is extremely easy for the caulking to crack during the expansion and contraction of the expansion joint. Rainwater flows along the V-shaped groove of the expansion joint waterproof board to the concrete expansion joint cantilever slab. At this time, when the caulking cracks due to aging or displacement, it is extremely easy for the rainwater inside the wall and the V-shaped groove to enter the expansion joint, failing to meet the better waterproof requirements. In view of this, the present application provides a roof expansion joint board flashing member to improve the waterproof performance, avoid the occurrence of water seepage, and reduce the later operation and maintenance costs.
[0036] Refer to Figure 1 , the roof expansion joint board flashing member provided by the embodiments of the present application includes: a vertical expansion joint board 40 connected to the two side walls 10 and used to cover the expansion joint 11; both sides of the vertical expansion joint board 40 are respectively positioned and installed on the two side walls 10, and an expansion 11 is reserved between the two side walls 10 to maintain a better expansion and contraction effect when the external temperature changes.
[0037] The vertical expansion joint plate 40 is used to cover the expansion joint 11, and a cantilever plate or a cover plate is connected to the top ends of the two side walls 10 to cover the expansion joint 11, preventing rainwater from entering the interior of the expansion joint 11 from the top. These are all well-known techniques to those skilled in the art and will not be elaborated here. In this application, emphasis is placed on protecting the vertical joints of the expansion joint 11. When ensuring a good expansion distance, it is to prevent rainwater from entering the expansion joint through the gap between the wall 10 and the expansion joint cantilever plate 20.
[0038] Specifically, it further includes a flashing plate 50 installed on the expansion joint cantilever plate 20; the flashing plate 50 is installed on the expansion joint cantilever plate 20, and the vertical plate 51 of the flashing plate 50 is in contact with the wall 10, and the vertical expansion joint plate 40 is located on the plane of the flashing plate 50. And a deformed V-shaped groove 42 extending into the interior of the expansion joint 11 is provided on the vertical expansion joint plate 40; when the two side walls 10 expand and contract under the influence of temperature changes, through the contraction and expansion of the deformed V-shaped groove 42, the overall expansion and waterproof effect is achieved.
[0039] Combined Figure 2 and Figure 3 As shown in [relevant figure], a flashing groove 52 extending into the interior of the expansion joint 11 is provided on the flashing plate 50, and the bottom of the deformed V-shaped groove 42 is located inside the flashing groove 52; thus, the rainwater in the deformed V-shaped groove 42 can be drained to the flashing plate, reducing the risk of water seepage.
[0040] Specifically, the flashing plate 50 is a plate body with a T-shaped structure, and the flashing plate 50 is connected with a vertical plate 51, and the vertical plate 51 surrounds to form a flashing groove 52 along one side of the T-shaped protruding part of the flashing plate. Through the setting of the flashing groove 52, the rainwater inside the deformed V-shaped groove 42 is completely drained to the flashing plate 50. It should be understood that in a specific embodiment of this application, when installing this flashing component, the flashing plate 50 is initially installed, and the length of the flashing plate 50 is the same as the width of the expansion joint cantilever plate 20. The flashing plate 50 realizes a more comprehensive drainage. The width of the flashing plate 50 is 60 mm to 150 mm, the height of the vertical plate 51 is 20 mm to 50 mm, the flashing groove 52 is a groove body with a protruding width of 100 mm, and the flashing groove 52 extends into the expansion joint 11 by at least 100 mm, thereby ensuring that the rainwater on the deformed V-shaped groove 42 is fully received. The vertical plate 51 is in contact with the two side walls 10 but is not connected to the two side walls 10. A water retaining component is installed on the two side walls 10 to drain the rainwater on the wall 10 to the flashing plate 50 for drainage. Of course, in other embodiments of this application, the width of the flashing plate 50, the height of the vertical plate 51, and the size of the flashing groove 52, etc. can all be adjusted, and it is integrally bent from a stainless steel plate, which is convenient for taking materials and improves the service life.
[0041] After the flashing plate 50 is positioned and installed, the vertical expansion joint plate 40 is then installed. The bottom end of the vertical expansion joint plate 40 is located on the upper plane of the flashing plate 50. The water retaining plates 30 are vertically assembled on both sides of the wall 10, and the vertical expansion joint plate 40 is buckled on the water retaining plates 30 on both sides, further improving the water retaining effect. Bending ear plates 41 are symmetrically arranged on both sides of the vertical expansion joint plate 40. The setting of the bending ear plates 41 makes there be a small gap between both sides of the vertical expansion joint plate 40 and the wall 10, which is sealed with structural adhesive 70, effectively achieving the waterproof effect. And under the state of rainwater impacting obliquely, the internal water retaining plate 30 and structural adhesive 70 achieve double protection, making all the rainwater fall onto the flashing plate 50 and drain out.
[0042] The width of the bending ear plate 41 is the same as the thickness of the water retaining plate 30. By tightly pressing, the risk of water seepage is reduced. The vertical expansion joint plate 40 is also integrally bent from a stainless steel plate, improving the service life.
[0043] Refer to together Figure 2 and Figure 4 As shown in, after the vertical expansion joint plate 40 is installed, water retaining components are oppositely arranged at the internal corners of the walls 10 and the expansion joint cantilever plates 20 on both sides. The two water retaining components are pressed against the plane of the flashing plate 50 and are respectively located on both sides of the bottom of the vertical expansion joint plate 40.
[0044] The water retaining component includes: a water retaining square bar 61 and a flashing ear plate 60 covering the water retaining square bar 61; the water retaining square bar 61 is connected to the walls 10 on both sides one by one. Through the setting of the water retaining component, the seepage of the wall 10 can be effectively blocked, and complete drainage to the flashing plate 50 can be realized. It should be understood that the water retaining square bar 61 is horizontally located above the vertical plate 51. During the expansion and contraction process of the wall 10, the water retaining square bar 61 is always fixedly attached to the wall 10. The rainwater on the wall 10 flows to the plane of the flashing plate 50 through the externally buckled flashing ear plate 60, ensuring that the rainwater cannot enter the expansion joint 11.
[0045] Both the water retaining square bar 61 and the water retaining plate 30 are made of wooden board bodies and / or plastic board bodies. The materials are relatively convenient to obtain, reducing the construction cost. Both the water retaining square bar 61 and the water retaining plate 30 are correspondingly connected to the walls 10 on both sides by cement nails. The installation method is simple. After installing the water retaining square bar 61 and the water retaining plate 30, structural adhesive 70 is injected into the gap with the wall 10.
[0046] After the installation is completed, the gaps between the vertical expansion joint plate 40 and the two water retaining components and the walls 10 on both sides are all sealed with structural adhesive 70. The structural adhesive 70 is silicone sealant. The waterproof performance of caulking and sealing is stable.
[0047] In this application, rainwater flows onto the flashing 50 through the wall 10 and the deformable V-shaped groove 42. The flashing protects the cantilever slab 20 of the expansion joint. At the same time, the water retaining component prevents rainwater from flowing along the wall 10, improving the overall waterproof performance within the normal expansion range and reducing the later operation and maintenance costs.
[0048] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present specification as above. For the sake of brevity, they are not provided in detail.
[0049] In addition, for the sake of simplicity of description and discussion, and in order not to make one or more embodiments of this specification difficult to understand, the well-known power / ground connections of other components may or may not be shown in the provided drawings. In addition, the device may be shown in block diagram form to avoid making one or more embodiments of this specification difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully within the understanding of those skilled in the art). In the case where specific details are set forth to describe the exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification can be implemented without these specific details or with variations of these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.
[0050] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the protection scope of the present disclosure.
Claims
1. A roof expansion joint plate flashing component, comprising a vertical expansion joint plate connected to the walls on both sides and used to cover the expansion joint, and a flashing plate installed on the expansion joint cantilever plate; characterized in that: The vertical expansion joint plate is provided with a deformation V-shaped groove extending to the interior of the expansion joint; The flashing plate is provided with a flashing groove extending to the inside of the expansion joint, and the bottom of the deformed V-shaped groove is located inside the flashing groove; Water retaining components are arranged at the inner corner connection of the wall and the expansion joint cantilever plate on both sides, and the two water retaining components are pressed on the plane of the flashing plate and are respectively located on both sides of the bottom of the vertical expansion joint plate; The gaps between the vertical expansion joint plate and the two water retaining components and the walls on both sides are sealed by structural adhesive.
2. The roof expansion joint flashing member according to claim 1, characterized in that: Water retaining plates are vertically mounted on the walls on both sides, and the vertical expansion joint plates are buckled with the water retaining plates on both sides.
3. The roof expansion joint plate flashing member according to claim 2, characterized in that: Bending ear plates are symmetrically arranged on both sides of the vertical expansion joint plate.
4. The roof expansion joint plate flashing member according to claim 3, characterized in that: The width of the bent ear plate is the same as the thickness of the water retaining plate.
5. The roof expansion joint plate flashing member according to claim 4, characterized in that: The water retaining assembly comprises: a water retaining square bar and a flashing ear plate covering the water retaining square bar; The water retaining square bars are connected to the walls on both sides in a one-to-one correspondence.
6. The roof expansion joint flashing member according to claim 5, characterized in that: The water retaining square strips and the water retaining plates are both wooden boards and / or plastic boards.
7. The roof expansion joint flashing member according to claim 6, characterized in that: The water retaining square strips and the water retaining plates are correspondingly connected to the walls on both sides by cement nails.
8. The roof expansion joint plate flashing member according to claim 1, characterized in that: The length of the flashing plate is the same as the width of the expansion joint cantilever plate.
9. The roof expansion joint plate flashing member according to claim 8, characterized in that: The flashing plate is a plate body with a T-shaped structure, and the flashing plate is connected to a vertical plate, and the vertical plate surrounds one side of the T-shaped protruding part of the flashing plate to form the flashing groove.
10. The roof expansion joint plate flashing member according to any one of claims 1 to 9, characterized in that: The structural adhesive is silicone sealant.