Waterproof strip, waterproof assembly and prefabricated waterproof wallboard
By designing waterproof strips and waterproof components, and utilizing the injection cavity and injection components to achieve sealing in the length and width directions of the waterproof strip, the problem of easy water seepage in precast wall panel coatings is solved, achieving effective waterproofing and flexible splicing of waterproof components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI ELECTRIC POWER TRANSMISSION & TRANSFORMATION ENG CO LTD
- Filing Date
- 2023-12-28
- Publication Date
- 2026-08-04
AI Technical Summary
Waterproof coatings applied to existing precast wall panels are prone to cracking in dry weather, leading to water seepage problems.
Design a waterproof strip comprising an injection cavity and an injection assembly, capable of achieving sealing in both length and width directions. The injection assembly fills both ends with sealant, and a one-way valve mechanism controls the flow of the sealant to prevent chemical reactions and solidification. Combined with a cover plate for easy installation, it forms a waterproof assembly and is then spliced together and fixed to a support frame.
It achieves effective sealing in both length and width directions, preventing water penetration, adapting to waterproofing needs of different areas, and is fixed by a support frame to ensure waterproofing effect.
Smart Images

Figure CN117758872B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of waterproof wall panel technology, specifically to a waterproof strip, a waterproof component, and a prefabricated waterproof wall panel. Background Technology
[0002] Precast wall panels are building wall components that are prefabricated in a factory or on a specific site, and then transported to the construction site in a modular manner, and finally assembled into a complete building wall. Currently, the main waterproofing measure for precast walls is to apply waterproof coatings to the precast wall panels. However, waterproof coatings are prone to cracking in dry weather, causing water seepage into the precast walls. Summary of the Invention
[0003] This invention provides a waterproof strip, a waterproof component, and a prefabricated waterproof wall, which can overcome some or all of the defects of the prior art.
[0004] According to a waterproof strip of the present invention, it includes a waterproof strip shell, and an injection cavity is formed in the waterproof strip shell along its length. The injection cavity includes a first cavity and two second cavities formed at both ends of the first cavity. The first cavity and the second cavity are used to store sealant. A partition plate is formed in the middle of the first cavity, and two sub-cavities are formed at both ends of the partition plate. A first injection assembly is provided in the two sub-cavities, and a second injection assembly is provided in the two second cavities. A first cover plate is provided above the first cavity, and a second cover plate is provided above the second cavities.
[0005] In this invention, the first adhesive injection component fills the waterproof strip with sealant at both ends along its width, thus achieving better adhesion and sealing between the waterproof strip's width ends and the mating planar structure, preventing water from penetrating the waterproof strip along its width. The second adhesive injection component fills the waterproof strip with sealant at both ends along its length, also achieving better adhesion and sealing between the waterproof strip's length ends and the mating planar structure, preventing water from penetrating the waterproof strip along its length. Therefore, the waterproof strip achieves sealing and waterproofing in both its length and width directions. The first cover plate facilitates the installation of the first adhesive injection component, and the second cover plate facilitates the installation of the second adhesive injection component.
[0006] Preferably, the first injection assembly includes a first propulsion assembly disposed within the sub-cavity and a plurality of first control assemblies disposed on the side wall of the waterproof strip housing. The first propulsion assembly is used to provide extrusion pressure to the sealant, and the first control assemblies control the extrusion of the sealant.
[0007] In this invention, the first propulsion component can provide the pressure for the sealant to be extruded, and the first control component can realize the extrusion of the sealant. When the first control component is turned on, the sealant can leave the waterproof strip housing through the first control component. When the first control component is closed, it can better prevent the sealant from coming into contact with air and undergoing a chemical reaction that would cause the sealant to solidify prematurely. Therefore, it better realizes the storage and use of the sealant.
[0008] Preferably, the first propulsion assembly includes a first compression plate slidably disposed within the sub-cavity. Multiple first spring mounting seats are spaced apart at one end of the first compression plate near the partition plate, and multiple second spring mounting seats are correspondingly formed at the partition plate. A first propulsion spring is provided at each of the second spring mounting seats, and the first propulsion spring is used to maintain the first compression plate's tendency to move away from the partition plate. The first control assembly includes a first connecting housing, which includes a connecting portion and a locking portion. A first connecting hole is correspondingly provided at the waterproof strip housing, and the connecting portion is threaded into the first connecting hole. A first glue injection channel is formed through the first connecting housing, and a first one-way valve structure is provided within the first glue injection channel.
[0009] In this invention, the first spring mounting base and the second spring mounting base can better realize the installation of the first push spring. The first push spring can squeeze the first compression plate, thereby realizing that when the first control component is turned on, the sealant leaves the sub-cavity through the first injection channel; the first one-way valve mechanism can realize the one-way flow of the sealant.
[0010] Preferably, the locking part includes a plurality of locking channels formed axially along the first glue injection channel. A spring pin is provided at the locking channel. The spring pin has a locking spring and a locking shaft. The locking spring is used to keep the locking shaft inserted into the first glue injection channel. The locking part also includes an unlocking member. The unlocking member includes an unlocking shaft and a support plate. The end of the unlocking shaft is used to cooperate with the first one-way valve mechanism. The unlocking shaft forms a plurality of locking holes axially. The plurality of locking holes are used to cooperate with the locking shaft.
[0011] In this invention, the unlocking shaft can cooperate with the first one-way valve mechanism, so that the valve core of the first one-way valve mechanism can be pressed to open the first one-way valve mechanism. Therefore, the sealant can flow out of the sub-cavity. The locking hole cooperates with the locking shaft to fix the unlocking shaft and the locking shaft, thereby better maintaining the opening of the first one-way valve mechanism.
[0012] Preferably, the second injection assembly includes a second propulsion assembly disposed in the second cavity and a second control assembly disposed at the end of the housing. The second propulsion assembly is used to provide extrusion pressure to the sealant, and the second control assembly is used to control the extrusion of the sealant.
[0013] In this invention, the second propulsion component can provide the pressure for the sealant to be extruded, and the second control component can realize the extrusion of the sealant. When the second control component is turned on, the sealant can leave the waterproof strip housing through the second control component. When the second control component is closed, it can better prevent the sealant from coming into contact with air and undergoing a chemical reaction that would cause the sealant to solidify prematurely. Therefore, it better realizes the storage and use of the sealant.
[0014] Preferably, the second propulsion assembly includes a second compression plate slidably disposed within the second cavity. Multiple third spring mounting seats are formed at the end of the second compression plate near the first cavity, and multiple fourth spring mounting seats are correspondingly formed at the end of the second cavity near the first cavity. A second propulsion spring is provided at each of the fourth spring mounting seats, and the second propulsion spring is used to maintain the tendency of the second compression plate away from the first cavity. The second control assembly includes a second connecting housing. A second connecting hole is correspondingly formed at the waterproof strip housing, and the second connecting hole is threaded into the second connecting housing. A second glue injection channel is formed through the second connecting housing, and a second one-way valve mechanism is provided within the second glue injection channel.
[0015] In this invention, the second spring mounting base and the second spring mounting base can better realize the installation of the second propulsion spring. The second propulsion spring can squeeze the second compression plate, thereby realizing that when the second control component is turned on, the sealant leaves the sub-cavity through the second injection channel; the second one-way valve mechanism can realize the one-way flow of the sealant.
[0016] Preferably, the waterproof strip shell has two first sealing rings at both ends along its length and two second sealing rings at both ends along its width.
[0017] In this invention, the first sealing ring can better limit the flow range of the sealant flowing out of the sub-cavity, and the second sealing ring can better limit the flow range of the sealant in the second cavity, thereby achieving waterproofing in both the length and width directions of the waterproof strip.
[0018] Preferably, the waterproof strip housing has two countersunk holes spaced apart along its length.
[0019] In this invention, the countersunk hole facilitates the installation of the waterproof strip.
[0020] According to the present invention, a waterproof component is formed by splicing the above-mentioned waterproof strip end to end.
[0021] In this invention, waterproof components are formed by splicing waterproof strips, which can better achieve waterproofing of a plane, thereby better matching the waterproofing needs of different areas.
[0022] According to a prefabricated waterproof wall panel of the present invention, it includes a supporting frame, a plurality of the above-mentioned waterproof components are provided at the supporting frame, a plurality of fixing holes are provided at the supporting frame, fixing bolts are provided at the fixing holes, the fixing bolts are used to pass through the countersunk holes and be threadedly connected to the fixing holes, a decorative plate is provided at the end of the waterproof strip away from the supporting frame, and a plurality of unlocking parts are provided at the decorative plate.
[0023] In this invention, the fixing bolt, countersunk hole, and fixing hole can better fix the waterproof strip. The unlocking part is located on the decorative panel. When the decorative panel and the waterproof strip are fitted together, the unlocking part can be fixedly fitted with the locking hole, thereby forming a fit between the decorative panel and the waterproof strip. Attached Figure Description
[0024] Figure 1 This is an isometric schematic diagram of the waterproof strip in Example 1;
[0025] Figure 2 This is a schematic diagram of the explosion of the waterproof strip in Example 1;
[0026] Figure 3 This is a schematic diagram of the internal structure of the waterproof strip in Example 1;
[0027] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;
[0028] Figure 5 for Figure 3 Enlarged view of a portion of point B in the middle;
[0029] Figure 6 This is an isometric schematic diagram of the first control component in Example 1;
[0030] Figure 7 This is an exploded view of the first control component in Example 1;
[0031] Figure 8 This is a front view schematic diagram of the first connecting shell in Embodiment 1;
[0032] Figure 9 This is a schematic diagram of the spring pin explosion in Example 1;
[0033] Figure 10 This is an isometric schematic diagram of the second control component in Embodiment 1;
[0034] Figure 11 This is an isometric schematic diagram of the mating mechanism in Example 2;
[0035] Figure 12 This is an isometric view of the waterproof wall explosion in Example 3. Detailed Implementation
[0036] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention. Example 1
[0037] Seen in Figure 1-2 This embodiment provides a waterproof strip, which includes a waterproof strip housing 100. An injection cavity 101 is formed within the waterproof strip housing 100 along its length. The injection cavity 101 includes a first cavity 102 and two second cavities 103 formed at both ends of the first cavity 102. The first cavity 102 and the second cavity 103 are used to store sealant. A partition plate 2021 is formed in the middle of the first cavity 102, and two sub-cavities 2022 are formed at both ends of the partition plate 2021. A first injection assembly 210 is provided in the two sub-cavities 2022, and a second injection assembly 220 is provided in the two second cavities 103. A first cover plate 204 is provided above the first cavity 102, and a second cover plate 205 is provided above the second cavities 103.
[0038] According to the solution provided in this embodiment, the first adhesive injection component 210 can fill the sealant at both ends of the waterproof strip in the width direction, thus forming a better bond and seal between the two ends of the waterproof strip in the width direction and the mating planar structure, thereby preventing water from penetrating into the interior of the waterproof strip in the width direction; the second adhesive injection component 220 can fill the sealant at both ends of the waterproof strip in the length direction, thus forming a better bond and seal between the two ends of the waterproof strip in the length direction and the mating planar structure, thereby preventing water from penetrating into the interior of the waterproof strip in the length direction; therefore, the waterproof strip can achieve sealing and waterproofing in both the length and width directions; the first cover plate 204 can better facilitate the installation of the first adhesive injection component 210, and the second cover plate 205 can better facilitate the installation of the second adhesive injection component 220.
[0039] When using this waterproof strip, first install the first glue injection component 210 into the first cavity 102, install the first cover plate 204, install the second glue injection component 220 into the second cavity, install the second cover plate 204, and inject sealant into the two sub-cavities 2022 and the second cavity 103 to complete the assembly of the waterproof strip.
[0040] Seen in Figure 2 The first adhesive injection assembly 210 includes a first propulsion assembly 211 disposed in the sub-cavity 2022 and a plurality of first control assemblies 212 disposed on the side wall of the waterproof strip housing 100. The first propulsion assembly 211 is used to provide extrusion pressure to the sealant, and the first control assemblies 212 control the extrusion of the sealant.
[0041] The first propulsion component 211 provides pressure for the sealant to be extruded, and the first control component 212 enables the sealant to be extruded. When the first control component 212 is turned on, the sealant can leave the waterproof strip housing 100 through the first control component 212. When the first control component 212 is closed, it can better prevent the sealant from coming into contact with air and undergoing a chemical reaction that would cause the sealant to solidify prematurely. Therefore, it better realizes the storage and use of the sealant.
[0042] Seen in Figure 2-8 The first propulsion component 211 includes a first compression plate 3111 slidably disposed within the sub-cavity 2022. Multiple first spring mounting seats 4111a are spaced apart at one end of the first compression plate 3111 near the partition plate 2021. Multiple second spring mounting seats 4021a are correspondingly formed at the partition plate 2021. A first propulsion spring 3112 is provided at each of the second spring mounting seats 4021a. The first propulsion spring 3112 is used to maintain the first compression plate 3111 away from the partition plate 2021. The first control component 212 includes a first connecting housing 6121. The first connecting housing 6121 includes a connecting part 6121a and a locking part 6121b. A first connecting hole 207 is correspondingly provided at the waterproof strip housing 100. The connecting part 6121a is threaded into the first connecting hole 207. A first glue injection channel 6121c is formed through the first connecting housing 6121. A first one-way valve structure 8124 is provided within the first glue injection channel 6121c.
[0043] The first spring mounting base 4111a and the second spring mounting base 4021a can better realize the installation of the first push spring 3112. The first push spring 3112 can squeeze the first compression plate 3111, so that when the first control component 212 is turned on, the sealant leaves the sub-cavity 2022 through the first glue injection channel 6121c; the first one-way valve mechanism can realize the one-way flow of the sealant.
[0044] Furthermore, in order to balance the air pressure inside the sub-cavity 2022 and the outside, the partition plate 2021 is provided with multiple first communication channels that communicate with the sub-cavity 2022, and the first cover plate 204 is correspondingly formed with a first matching channel.
[0045] It is understandable that the first check valve mechanism is a pressure-opening check valve. When an external force is applied to the valve core of the first check valve mechanism, the first check valve mechanism is opened, and the sealant can leave the sub-cavity 2022 through the first check valve mechanism.
[0046] Seen in Figure 6-9The locking part 6121b includes a plurality of locking channels 7121d formed axially along the first glue injection channel 6121c. A spring pin 7122 is provided at the locking channel 7121d. The spring pin 7122 has a locking spring 9122a and a locking shaft 9122b. The locking spring 9122a is used to keep the locking shaft 9122b inserted into the first glue injection channel 6121c. The locking part 6121b also includes an unlocking member 7123. The unlocking member 7123 includes an unlocking shaft 7123a and a support plate 7123b. The end of the unlocking shaft 7123a is used to cooperate with the first one-way valve mechanism. The unlocking shaft 7123a forms a plurality of locking holes 7123c along the axial direction. The plurality of locking holes 7123c are used to cooperate with the locking shaft 9122b.
[0047] The unlocking shaft 7123a can cooperate with the first one-way valve mechanism, so that the valve core of the first one-way valve mechanism can be pressed to open the first one-way valve mechanism. Therefore, the sealant can flow out of the sub-cavity 2022. The locking hole 7123c cooperates with the locking shaft 9122b to fix the unlocking shaft 7123a and the locking shaft 9122b, thereby better maintaining the opening of the first one-way valve mechanism.
[0048] Seen in Figure 1-2 The second injection assembly 220 includes a second propulsion assembly 221 disposed in the second cavity 103 and a second control assembly 222 disposed at the end of the housing. The second propulsion assembly 221 is used to provide extrusion pressure to the sealant, and the second control assembly 222 is used to control the extrusion of the sealant.
[0049] The second propulsion component 221 provides pressure for the sealant to be extruded, and the second control component 222 enables the sealant to be extruded. When the second control component 222 is turned on, the sealant can leave the waterproof strip housing 100 through the second control component 222. When the second control component 222 is closed, it can better prevent the sealant from coming into contact with air and undergoing a chemical reaction that would cause the sealant to solidify prematurely. Therefore, it better realizes the storage and use of the sealant.
[0050] Seen in Figure 1-10The second propulsion assembly 221 includes a second compression plate 3211 slidably disposed within the second cavity 103. Multiple third spring mounting seats 5211a are formed at the end of the second compression plate 3211 near the first cavity 102. Multiple fourth spring mounting seats 5031 are correspondingly formed at the end of the second cavity 103 near the first cavity 102. A second propulsion spring 3212 is provided at each of the fourth spring mounting seats 5031. The second propulsion spring 3212 is used to maintain the tendency of the second compression plate 3211 away from the first cavity 102. The second control assembly 222 includes a second connecting housing 10221. A second connecting hole 208 is correspondingly formed at the waterproof strip housing 100. The second connecting hole 208 is threaded into the second connecting housing 10221. A second glue injection channel 10222 is formed through the second connecting housing 10221. A second one-way valve mechanism 10223 is provided within the second glue injection channel 10222.
[0051] The second spring mounting base 4021a and the second spring mounting base 4021a can better realize the installation of the second push spring 3212. The second push spring 3212 can squeeze the second compression plate 3211, so that when the second control component 222 is turned on, the sealant leaves the sub-cavity 2022 through the second glue injection channel 10222; the second one-way valve mechanism 10223 can realize the one-way flow of the sealant.
[0052] Furthermore, a second mating channel is formed at the waterproof strip housing 100 in the second cavity, which can balance the air pressure in the second cavity, thus better realizing the movement of the second compression plate.
[0053] It is understandable that the second check valve mechanism 10223 is a pressure-opening check valve. When an external force is applied to the second check valve mechanism 10223, the second check valve is opened, and the sealant overflows through the second injection channel 10222.
[0054] Seen in Figure 1 The waterproof strip housing 100 has two first sealing rings 131 at both ends along its length and two second sealing rings 132 at both ends along its width.
[0055] The first sealing ring 131 can better limit the flow range of the sealant flowing out of the sub-cavity 2022, and the second sealing ring 132 can better limit the flow range of the sealant in the second cavity 103, thereby achieving waterproofing in both the length and width directions of the waterproof strip.
[0056] Seen in Figure 1 The waterproof strip housing 100 has two countersunk holes 106 spaced apart along its length.
[0057] The countersunk hole 106 facilitates the installation of the waterproof strip. Example 2
[0058] Seen in Figure 11 This embodiment provides a waterproof component, which is formed by splicing the waterproof strips end to end as described in Embodiment 1.
[0059] Among them, waterproof components are formed by splicing waterproof strips, which can better achieve waterproofing of the plane, thus better matching the waterproofing needs of different areas. Example 3
[0060] Seen in Figure 12 This embodiment provides a prefabricated waterproof wall panel, which includes a support frame 1242. The support frame 1242 is provided with a plurality of waterproof components as described in Embodiment 2. The support frame 1242 is provided with a plurality of fixing holes 1242a. Fixing bolts 1241 are provided at the fixing holes 1242a. The fixing bolts 1241 are used to pass through the countersunk holes 106 and be threadedly connected to the fixing holes 1242a. A decorative plate 1243 is provided at the end of the waterproof strip away from the support frame 1242. A plurality of unlocking parts 7123 are provided at the decorative plate 1243.
[0061] The fixing bolt 1241, countersunk hole 106, and fixing hole 1242a can better fix the waterproof strip. The unlocking part 7123 is located at the decorative panel 1243. When the decorative panel 1243 and the waterproof strip are engaged, the unlocking part 7123 can be engaged with the locking hole 7123c, thereby forming a fit between the decorative panel 1243 and the waterproof strip.
[0062] In this embodiment, the seam of the decorative panel 1243 should be located at the waterproof strip, so that water cannot pass through the seam and the waterproof strip.
[0063] In this embodiment, the waterproof wall is installed by first fixing the support frame, and then installing the waterproof components to the support frame using fixing bolts. Example 4
[0064] This embodiment provides a prefabricated waterproof wall panel, which differs from Embodiment 3 in that:
[0065] A core board is installed inside the support frame 1242, and decorative panels 1243 are installed on both sides of the support frame 1242 through multiple waterproof components as described in Embodiment 2.
[0066] The prefabricated waterproof wall panel provided in this embodiment can better achieve integrated factory prefabrication production.
[0067] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.
[0068] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A waterproof strip, characterized in that: The device includes a waterproof strip housing (100), and an adhesive injection cavity (101) is formed along the length direction inside the waterproof strip housing (100). The adhesive injection cavity (101) includes a first cavity (102) and two second cavities (103) formed at both ends of the first cavity (102). The first cavity (102) and the second cavity (103) are used to store sealant. A partition plate (2021) is formed in the middle of the first cavity (102), and two sub-cavities (2022) are formed at both ends of the partition plate (2021). A first adhesive injection assembly (210) is provided in the two sub-cavities (2022), and a second adhesive injection assembly (220) is provided in the two second cavities (103). A first cover plate (204) is provided above the first cavity (102), and a second cover plate (205) is provided above the second cavity (103). The first injection assembly (210) includes a first propulsion assembly (211) disposed in the sub-cavity (2022) and a plurality of first control assemblies (212) disposed on the side wall of the waterproof strip housing (100). The first propulsion assembly (211) is used to provide extrusion pressure to the sealant, and the first control assemblies (212) control the extrusion of the sealant. The second injection assembly (220) includes a second propulsion assembly (221) disposed in the second cavity (103) and a second control assembly (222) disposed at the end of the housing. The second propulsion assembly (221) is used to provide extrusion pressure to the sealant, and the second control assembly (222) is used to control the extrusion of the sealant. The first propulsion assembly (211) includes a first compression plate (3111) slidably disposed within the sub-cavity (2022). Multiple first spring mounting seats (4111a) are spaced apart at one end of the first compression plate (3111) near the partition plate (2021). Multiple second spring mounting seats (4021a) are correspondingly formed at the partition plate (2021). A first propulsion spring (3112) is provided at each of the second spring mounting seats (4021a). The first propulsion spring (3112) is used to keep the first compression plate (3111) away from the partition plate (2022). The trend of 21); the first control component (212) includes a first connecting housing (6121), the first connecting housing (6121) includes a connecting part (6121a) and a locking part (6121b), a first connecting hole (207) is provided at the waterproof strip housing (100), the connecting part (6121a) is threadedly engaged with the first connecting hole (207), a first glue injection channel (6121c) is formed through the first connecting housing (6121), and a first one-way valve structure (8124) is provided in the first glue injection channel (6121c); The locking part (6121b) includes a plurality of locking channels (7121d) formed axially along the first glue injection channel (6121c). A spring pin (7122) is provided at the locking channel (7121d). The spring pin (7122) has a locking spring (9122a) and a locking shaft (9122b). The locking spring (9122a) is used to keep the locking shaft (9122b) inserted into the first glue injection channel (6121c). The locking part (6121b) also includes an unlocking member (7123). The unlocking member (7123) includes an unlocking shaft (7123a) and a support plate (7123b). The end of the unlocking shaft (7123a) is used to cooperate with the first one-way valve mechanism. The unlocking shaft (7123a) forms a plurality of locking holes (7123c) axially. The plurality of locking holes (7123c) are used to cooperate with the locking shaft (9122b).
2. A waterproof strip according to claim 1, characterized in that: The second propulsion assembly (221) includes a second compression plate (3211) slidably disposed within the second cavity (103). Multiple third spring mounting seats (5211a) are formed on the second compression plate (3211) near the end of the first cavity (102). Multiple fourth spring mounting seats (5031) are correspondingly formed on the end of the second cavity (103) near the first cavity (102). A second propulsion spring (3212) is provided at each of the fourth spring mounting seats (5031). The second propulsion spring (3212) is used to hold the first spring... The second compression plate (3211) tends to move away from the first cavity (102); the second control component (222) includes a second connecting housing (10221), a second connecting hole (208) is formed at the waterproof strip housing (100), the second connecting hole (208) is threadedly engaged with the second connecting housing (10221), a second glue injection channel (10222) is formed through the second connecting housing (10221), and a second one-way valve mechanism (10223) is provided in the second glue injection channel (10222).
3. A flashing according to claim 2, wherein: The waterproof strip housing (100) has two first sealing rings (131) at both ends in the length direction; and two second sealing rings (132) at both ends in the width direction.
4. A flashing according to claim 3, wherein: The waterproof strip housing (100) has two countersunk holes (106) spaced apart along its length.
5. A waterproof component, characterized in that: It is formed by splicing the waterproof strips end to end as described in any one of claims 1-4.
6. A prefabricated waterproof wall panel, characterized in that: The device includes a support frame (1242), which is provided with a plurality of waterproof components as described in claim 5. The support frame (1242) is provided with a plurality of fixing holes (1242a), and fixing bolts (1241) are provided at the fixing holes (1242a). The fixing bolts (1241) are used to pass through the countersunk holes (106) and be threadedly connected to the fixing holes (1242a). The waterproof strip is provided with a plurality of decorative plates (1243) at one end away from the support frame (1242), and a plurality of unlocking parts (7123) are provided at the decorative plates (1243). The unlocking parts (7123) are correspondingly engaged with the locking parts (6121b).