A window extension weather strip made of a composite material

Abstract

The utility model relates to the technical field of building waterproof, more specifically, relate to a window extension water baffle made of composite material, include: integrative water baffle structure, water baffle structure is made by sheet molding compound and / or mass molding compound mould pressing, water baffle structure includes: be used to with the water baffle of sill top connection, the water baffle one end top is provided with the anti -permeation baffle for the resistance cooperation in window frame outer wall, the water baffle other end below is provided with the vertical water baffle for the resistance cooperation in sill eaves mouth. The utility model adopts sheet molding compound and / or mass molding compound mould pressing integrative structure, has excellent high and low temperature resistance, can keep stable physical property under different climatic environment, and can effectively block rainwater from the water baffle of sill top, the connecting place of window frame and sill and the part such as the eaves mouth below the sill and so on and infiltrate indoor.

Description

Technical Field

[0001] This utility model relates to the field of building waterproofing technology, and more specifically, to a window extension water-blocking strip made of composite material. Background Technology

[0002] In the construction industry, windows are an indispensable component of buildings, and their waterproofing and structural stability are crucial. Traditionally, the lower edge of windows is treated with cement or stone paint. However, this method has many drawbacks. Window lower edges treated with cement or stone paint are prone to cracking over long-term use. This is because the inherent properties of cement and stone paint cause them to shrink or expand under different environmental conditions, such as temperature changes and humidity variations, leading to structural cracks. For bay windows, a special type of window, rainwater is more likely to accumulate at the lower edge due to their structural characteristics. Once cracks appear in the lower edge formed by cement or stone paint, rainwater will seep into the room, damaging not only the interior finishes (such as mold and peeling paint) but also potentially affecting the overall structural safety of the building.

[0003] Furthermore, traditional construction methods are complex, requiring specialized personnel and a lengthy construction period, increasing both construction and time costs. Moreover, their aesthetic appeal is relatively limited and fails to meet the demands of modern architecture for both aesthetics and personalization. In summary, existing window sill treatments suffer from problems such as susceptibility to cracking, poor waterproofing, complex construction, and insufficient aesthetics. Therefore, there is an urgent market need for a new type of window extension water-blocking strip to address the drawbacks of traditional construction methods. Utility Model Content

[0004] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, this utility model provides a window extension water-stop strip made of composite material, comprising: an integrally molded water-stop strip structure, the water-stop strip structure being molded from sheet molding compound and / or lumpy molding compound; the water-stop strip structure comprising: a drip edge for connecting with the window sill surface; a waterproof baffle for abutting against and fitting against the outer wall of the window frame is provided above one end of the drip edge; and a vertical water-stop for abutting against and fitting against the lower edge of the window sill is provided below the other end of the drip edge.

[0006] Furthermore, the upper surface of the water-repellent plate is constructed as a water-guiding slope, which slopes downward from the seepage-proof baffle towards the vertical water-repellent plate.

[0007] Furthermore, multiple anti-slip particles are evenly distributed on the connection surface between the drip edge and the window sill.

[0008] Furthermore, the waterproofing strip is bonded to the window sill, the waterproofing baffle is bonded to the outer wall of the window frame, and the vertical waterproofing strip is bonded to the lower edge of the window sill using waterproof adhesive.

[0009] Furthermore, the vertical water-stop plate includes: a front plate connected to one end of the water-drip plate extending to the outside of the window sill surface; the left and right ends of the front plate are respectively connected to a side plate that abuts against the lower eaves of the window sill; the tops of the two side plates are connected to the lower surface of the water-drip plate; the bottoms of the front plate and the two side plates are connected to a lower plate; and the bottom of the lower plate is provided with a strip plate for abutting against the lower eaves of the window sill.

[0010] Furthermore, the front plate, lower plate, water deflector, and two side plates together define a cavity with a strip-shaped cross-section; multiple reinforcing ribs are provided inside the cavity, and all the reinforcing ribs are fixedly connected to the inner wall of the cavity.

[0011] Furthermore, the window extension water-blocking strip made of composite material further includes: a water collection and cleaning structure; the water collection and cleaning structure includes: a water collection tank, a mounting plate fixedly connected to the top of the back plate of the water collection tank, the top of the mounting plate abutting against the lower surface of the lower plate, the mounting plate being connected to multiple mounting blocks on the front side of the strip plate by multiple bolts; a water collection trough is provided on the top of the water collection tank, and a drain pipe is provided at the bottom of the water collection tank, with a threaded seal connection to a removable plug at the drain pipe; the water collection trough is located directly below the front plate.

[0012] Furthermore, the front end of the water collection tank is fixedly connected to the overflow tank, and the inside of the overflow tank is horizontally fixedly connected to the through-sleeve horizontal shaft. Two opposing hand-operated sliders are slidably connected on the through-sleeve horizontal shaft. Each of the two hand-operated sliders is fixed with a side baffle cleaning plate. The two side baffle cleaning plates slide relative to each other on the upper surface of the deflector plate and the front side of the front plate. Rubber scrapers are provided on the contact surfaces of the side baffle cleaning plates with the deflector plate and the front plate.

[0013] Furthermore, two protrusions above the overflow box are threaded with limiting bolts. When the outer sides of the two hand-operated sliders contact the inner sidewall of the overflow box, the two limiting bolts can be inserted into the limiting holes on the front side of the two hand-operated sliders.

[0014] Furthermore, the horizontal height of the upper surface of the overflow tank is lower than that of the upper surface of the water collection tank. An overflow trough is provided above the front side of the water collection tank. When the water level inside the water collection tank is higher than the overflow trough, the water in the water collection tank can flow into the overflow tank through the overflow trough. An overflow alarm is provided inside the overflow tank, and a water outlet pipe with a plug is provided at the bottom of the overflow tank.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This utility model provides a window extension water-stop strip made of composite material. It is molded into a single piece using sheet molding compound and / or spherical molding compound, exhibiting excellent high and low temperature resistance. It maintains stable physical properties under different climatic conditions and is not prone to cracking or damage due to temperature changes. The water-stop plate connects to the window sill. A waterproof baffle is positioned above one end of the water-stop plate, engaging with the outer wall of the window frame. A vertical water-stop plate is positioned below the other end of the water-stop plate, engaging with the lower edge of the window sill. This effectively prevents rainwater from seeping into the room from the window sill, the connection between the window frame and the window sill, and the lower edge of the window sill. Multiple anti-slip particles are evenly distributed on the connection surface between the water-stop plate and the window sill. During construction, waterproof adhesive is used to bond the water-stop strip to the window sill and other parts. The anti-slip particles increase the friction of the connection surface, allowing the waterproof adhesive to adhere better, ensuring a firm bond between the water-stop strip and the window sill, window frame, etc., preventing loosening or detachment, and improving the stability and reliability of the water-stop strip installation. During construction, there is no need for complicated on-site construction operations like traditional methods. Simply use waterproof adhesive to bond it to the corresponding parts, which greatly shortens the construction cycle and reduces construction difficulty and cost.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram illustrating the installation of the window extension water-blocking strip of this utility model on a building; Figure 2 Schematic diagram of the window extension water-blocking strip of this utility model Figure 1 ; Figure 3 Schematic diagram of the window extension water-blocking strip of this utility model Figure 2 ; Figure 4 Schematic diagram of the window extension water-blocking strip of this utility model Figure 3 ; Figure 5 This is a schematic diagram showing the connection between the water-blocking strip structure and the water-collecting and cleaning structure of this utility model; Figure 6 This is a schematic diagram of the water collection and cleaning structure of this utility model.

[0018] Icons: Water-blocking strip structure 100; Drip edge 101; Seepage-proof baffle 102; Anti-slip particles 103; Front plate 104; Side plate 105; Lower plate 106; Strip plate 107; Reinforcing rib 108; Water collection and cleaning structure 200; Water collection tank 201; Water collection trough 202; Overflow tank 203; Through-sleeve horizontal shaft 204; Hand-operated slider 205; Side baffle cleaning plate 206; Restricting bolt 207; Overflow trough 208; Building 300. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0021] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0022] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0023] Example 1: like Figures 1-6 As shown, a window extension water-retaining strip made of composite material includes: an integrally molded water-retaining strip structure 100. Figure 1 This is a schematic diagram of the window extension water-retaining strip of this utility model installed on building 300. The water-retaining strip structure 100 is molded from sheet molding compound and / or lumpy molding compound. The water-retaining strip structure 100 includes: a drip edge 101 for connecting with the window sill; a waterproof baffle 102 for abutting against the outer wall of the window frame is provided above one end of the drip edge 101; and a vertical water-retaining plate for abutting against the lower edge of the window sill is provided below the other end of the drip edge 101. The upper surface of the drip edge 101 is constructed as a water-guiding slope, which slopes downward from the waterproof baffle 102 towards the vertical water-retaining plate. Multiple anti-slip particles 103 are evenly distributed on the connection surface between the drip edge 101 and the window sill. The drip edge 101 and the window sill, the waterproof baffle 102 and the outer wall of the window frame, and the vertical water-retaining plate and the lower edge of the window sill are all bonded together with waterproof adhesive.

[0024] The working principle and technical effects of the above scheme are as follows: The water-retaining strip structure 100 is molded from sheet molding compound and / or spherical molding compound, exhibiting excellent high and low temperature resistance. It maintains stable physical properties under varying environmental temperatures, effectively preventing cracking due to temperature changes, extending the service life of the water-retaining strip, improving its reliability, and reducing subsequent maintenance and replacement costs. The one-piece molded water-retaining strip structure 100 provides strong structural integrity. Compared to traditional spliced ​​structures, it reduces gaps, lowers the risk of rainwater seepage through gaps, and enhances the water-retaining strip's waterproof performance. Simultaneously, the one-piece design simplifies the manufacturing process, improves production efficiency, and facilitates large-scale production. The upper surface of the drip edge 101 is constructed as a water-guiding slope, which slopes downwards from the seepage-proof baffle 102 towards the vertical water-retaining plate. This guides rainwater falling on the drip edge 101 to flow quickly towards the vertical water-retaining plate, preventing rainwater accumulation on the windowsill and effectively preventing rainwater seepage into the room, thus improving the water-retaining strip's waterproof effect. Multiple anti-slip particles 103 are evenly distributed on the connection surface between the drip edge 101 and the windowsill. During construction, waterproof adhesive is used to bond the drip edge 101 to the windowsill. The anti-slip particles 103 increase the friction of the connection surface, allowing the waterproof adhesive to adhere better and ensuring a firm bond between the drip edge 101 and the windowsill, preventing loosening or detachment and improving the stability of the water-stop strip installation. A seepage-proof baffle 102 is positioned above one end of the drip edge 101, abutting against the outer wall of the window frame. It prevents rainwater from seeping into the room from the connection between the window frame and the windowsill, further enhancing the waterproof performance of the water-stop strip and protecting the indoor environment from rainwater damage. A vertical water-stop plate is positioned below the other end of the drip edge 101, abutting against the lower edge of the windowsill. It prevents rainwater from seeping into the room from the lower edge of the windowsill. Working in conjunction with the drip edge 101 and the seepage-proof baffle 102, they form a complete waterproof barrier, effectively preventing rainwater from entering the room. The water-retaining plate 101 is bonded to the windowsill, the waterproof baffle 102 is bonded to the outer wall of the window frame, and the vertical water-retaining plate is bonded to the lower edge of the windowsill with waterproof adhesive. This not only makes the construction simple and convenient, but also the waterproof adhesive has good sealing performance, which can further enhance the tightness of the connection between the water-retaining strip and the windowsill, window frame and other parts, improve the waterproof effect of the water-retaining strip, and ensure its stability and reliability during long-term use.

[0025] Example 2: like Figures 1-6As shown, the vertical baffle plate includes: a front plate 104 connected to one end of the drip edge 101 extending to the outside of the windowsill surface; the left and right ends of the front plate 104 are respectively connected to a side plate 105 that abuts against the lower edge of the windowsill; the tops of the two side plates 105 are connected to the lower surface of the drip edge 101; the bottoms of the front plate 104 and the two side plates 105 are connected to a lower plate 106; the bottom of the lower plate 106 is provided with a strip-shaped plate 107 for abutting against the lower edge of the windowsill. The front plate 104, the lower plate 106, the drip edge 101, and the two side plates 105 together define a cavity with a strip-shaped cross-section; multiple reinforcing ribs 108 are provided in the cavity, and the multiple reinforcing ribs 108 are fixedly connected to the inner wall of the cavity.

[0026] The working principle and technical effects of the above scheme are as follows: In this utility model, the vertical water-blocking plate is composed of a front plate 104, a side plate 105, a lower plate 106, and a strip plate 107. The front plate 104 is connected to the outer end of the window sill by extending the water-drip plate 101. Its left and right ends are respectively connected to the side plates 105 that abut against the lower edge of the window sill. The tops of the two side plates 105 are connected to the lower surface of the water-drip plate 101. The bottoms of the front plate 104 and the two side plates 105 are connected to the lower plate 106. The strip plate 107 at the bottom of the lower plate 106 abuts against the lower edge of the window sill, forming a relatively closed protective system that can effectively prevent rainwater from seeping into the room from the lower edge of the window sill, thus enhancing the overall waterproof performance of the water-blocking strip. The front plate 104, the lower plate 106, the water deflector 101, and the two side plates 105 together define a cavity with a strip-shaped cross-section. Multiple reinforcing ribs 108 are fixedly connected to the inner wall of the cavity. The reinforcing ribs 108 enhance the structural strength of the vertical water deflector, enabling it to withstand greater external impacts and pressures, making it less prone to deformation or damage, extending the service life of the water deflector, and ensuring its stability and reliability during long-term use.

[0027] Example 3: like Figures 1-6 As shown, the window extension water-blocking strip made of composite material further includes: a water collection and cleaning structure 200; the water collection and cleaning structure 200 includes: a water collection tank 201, a mounting plate fixedly connected to the top of the back plate of the water collection tank 201, the top of the mounting plate abutting against the lower surface of the lower plate 106, the mounting plate being connected to multiple mounting blocks on the front side of the strip plate 107 by multiple bolts; a water collection trough 202 is provided with an open top of the water collection tank 201, a drain pipe is provided at the bottom of the water collection tank 201, and a removable plug is threadedly sealed at the drain pipe; the water collection trough 202 is located directly below the front plate 104.

[0028] The working principle and technical effects of the above scheme are as follows: The water collection and cleaning structure 200 in this invention is a detachable structure. It is only required when the invention is installed on the indoor side of a windowsill. The water collection and cleaning structure 200 collects rainwater splashing onto the extended water-blocking strip of the indoor window, preventing it from dripping onto the ground. The water collection and cleaning structure 200 includes a water collection tank 201. The mounting plate at the top of its back panel abuts against the lower surface of the lower plate 106 and is connected to multiple mounting blocks on the front side of the strip plate 107 via multiple bolts. This connection method ensures the stability and firmness of the water collection tank 201 installation, allowing it to reliably cooperate with the vertical water-blocking plate. A water collection trough 202 is openly provided at the top of the water collection tank 201, and the water collection trough 202 is located directly below the front plate 104, effectively collecting rainwater flowing down from the front plate 104 and preventing rainwater from dripping indiscriminately. The bottom of the water collection tank 201 is equipped with a drain pipe with a threaded seal and a removable plug. This allows for regular opening of the plug to drain the rainwater collected in the water collection trough 202, and also facilitates cleaning and maintenance of the water collection trough 202, ensuring that the water collection and cleaning structure 200 continues to function effectively and extending its service life.

[0029] Example 4: like Figures 1-6 As shown, the front end of the water collection tank 201 is fixedly connected to the overflow tank 203. A transverse shaft 204 is horizontally fixedly connected inside the overflow tank 203. Two opposing hand-operated sliders 205 are slidably connected to the transverse shaft 204. Side cleaning plates 206 are fixed to each of the two hand-operated sliders 205. The two side cleaning plates 206 slide relative to each other on the upper surface of the deflector plate 101 and the front side of the front plate 104. Rubber scrapers are provided on the contact surfaces of the side cleaning plates 206 with the deflector plate 101 and the front plate 104. Two protrusions above the overflow tank 203 are threaded with limiting bolts 207. When the outer sides of the two hand-operated sliders 205 contact the inner sidewall of the overflow tank 203, the two limiting bolts 207 can be inserted into the limiting holes on the front side of the two hand-operated sliders 205.

[0030] The working principle and technical effects of the above scheme are as follows: Inside the overflow box 203, two opposing hand-operated sliders 205 are slidably connected to the through-sleeve horizontal shaft 204. The side baffle cleaning plates 206 fixed on the hand-operated sliders 205 can slide relative to each other on the upper surface of the water-repellent plate 101 and the front side of the front plate 104. The rubber scraper provided on the contact surface of the side baffle cleaning plates 206 with the water-repellent plate 101 and the front plate 104 allows for easy cleaning of the surfaces of the water-repellent plate 101 and the front plate 104 by manually operating the hand-operated sliders 205, removing dust, debris and water accumulation, keeping the surface of the water-repellent strip clean, ensuring its drainage and water-repellent performance, and limiting the water droplets on both sides so that the water droplets on the water-repellent plate 101 can only slide down from the middle. Meanwhile, the limiting bolts 207 of the threaded connection on the protrusion above the overflow box 203 can be inserted into the limiting holes on the front of the two hand lever sliders 205 when the outer side of the two hand lever sliders 205 contacts the inner side wall of the overflow box 203. This can limit and fix the hand lever sliders 205, prevent them from sliding freely during non-cleaning operations, ensure the stability of the cleaning structure when not in use, extend its service life, and improve the overall user experience.

[0031] Example 5: like Figures 1-6 As shown, the horizontal height of the upper surface of the overflow tank 203 is lower than the horizontal height of the upper surface of the water collection tank 201. An overflow trough 208 is provided above the front side of the water collection tank 201. When the water level inside the water collection tank 201 is higher than the overflow trough 208, the water in the water collection tank 201 can flow into the overflow tank 203 through the overflow trough 208. An overflow alarm is provided inside the overflow tank 203, and a water outlet pipe with a plug is provided at the bottom of the overflow tank 203.

[0032] The working principle and technical effects of the above scheme are as follows: The upper surface of the overflow tank 203 is lower than the upper surface of the water collection tank 201, and an overflow trough 208 is provided above the front of the water collection tank 201. When the water level inside the water collection tank 201 is higher than the overflow trough 208, the water in the water collection tank 201 can flow into the overflow tank 203 through the overflow trough 208, effectively preventing water overflow from the water collection tank 201 and its impact on the surrounding environment, thus improving the safety and reliability of the water collection system. An overflow alarm is installed inside the overflow tank 203, which immediately sounds an alarm when water flow is detected in the overflow tank 203, reminding the user to deal with the water collection situation in a timely manner and prevent further flooding. A drain pipe with a plug is provided at the bottom of the overflow tank 203, allowing users to drain the accumulated water in the overflow tank 203 as needed, facilitating the maintenance and management of the entire water collection system and ensuring its continuous and stable function of water collection and drainage.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A window extension water-retaining strip made of a composite material, characterized in that, include: An integrally molded water-blocking strip structure (100) is made of sheet molding compound and / or lumpy molding compound; the water-blocking strip structure (100) includes: a drip edge (101) for connecting with the windowsill surface; a waterproof baffle (102) for abutting against and fitting against the outer wall of the window frame is provided above one end of the drip edge (101); a vertical water-blocking plate for abutting against and fitting against the lower eaves of the windowsill is provided below the other end of the drip edge (101).

2. A window extension water-blocking strip made of composite material according to claim 1, characterized in that, The upper surface of the water-repellent plate (101) is constructed as a water-guiding slope, which slopes downward from the seepage-proof baffle (102) toward the vertical water-repellent plate.

3. A window extension water-blocking strip made of composite material according to claim 1, characterized in that, Multiple anti-slip particles (103) are evenly distributed on the connection surface between the drip edge (101) and the windowsill.

4. A window extension water-blocking strip made of composite material according to claim 1, characterized in that, The water-repellent board (101) is bonded to the windowsill surface, the waterproof baffle (102) is bonded to the outer wall of the window frame, and the vertical water-repellent board is bonded to the lower eaves of the windowsill with waterproof adhesive.

5. A window extension water-blocking strip made of composite material according to claim 1, characterized in that, The vertical water-stop plate includes: a front plate (104) that extends from the water-drip plate (101) to the outside of the windowsill surface, the left and right ends of the front plate (104) being connected to a side plate (105) that abuts against the lower eaves of the windowsill, the tops of the two side plates (105) being connected to the lower surface of the water-drip plate (101), the bottoms of the front plate (104) and the two side plates (105) being connected to a lower plate (106), and the bottom of the lower plate (106) being provided with a strip plate (107) for abutting against the lower eaves of the windowsill.

6. A window extension water-blocking strip made of composite material according to claim 5, characterized in that, The front plate (104), lower plate (106), water-repellent plate (101), and two side plates (105) together define a cavity with a strip-shaped cross section; multiple reinforcing ribs (108) are provided inside the cavity, and the multiple reinforcing ribs (108) are all fixedly connected to the inner wall of the cavity.

7. A window extension water-blocking strip made of composite material according to claim 6, characterized in that, Also includes: Water collection and cleaning structure (200); The water collection and cleaning structure (200) includes: a water collection tank (201), a mounting plate is fixedly connected to the top of the back plate of the water collection tank (201), the top of the mounting plate abuts against the lower surface of the lower plate (106), and the mounting plate is connected to multiple mounting blocks on the front side of the strip plate (107) by multiple bolts; a water collection trough (202) is provided on the top of the water collection tank (201), and a drain pipe is provided at the bottom of the water collection tank (201), with a threaded seal connection to a removable plug at the drain pipe; the water collection trough (202) is located directly below the front plate (104).

8. A window extension water-blocking strip made of composite material according to claim 7, characterized in that, The front end of the water collection tank (201) is fixedly connected to the overflow tank (203). The overflow tank (203) is horizontally fixedly connected to the through-sleeve horizontal shaft (204). Two opposing hand-operated sliders (205) are slidably connected on the through-sleeve horizontal shaft (204). Side cleaning plates (206) are fixed on both hand-operated sliders (205). The two side cleaning plates (206) are slidably fitted on the upper surface of the water-reflecting plate (101) and the front side of the front plate (104). Rubber scrapers are provided on the contact surfaces of the side cleaning plates (206) with the water-reflecting plate (101) and the front plate (104).

9. A window extension water-blocking strip made of composite material according to claim 8, characterized in that, Two limiting bolts (207) are threaded onto the two protrusions above the overflow box (203). When the outer side of the two hand-operated sliders (205) contacts the inner side wall of the overflow box (203), the two limiting bolts (207) can be inserted into the limiting holes on the front side of the two hand-operated sliders (205).

10. A window extension water-blocking strip made of composite material according to claim 8, characterized in that, The upper surface of the overflow tank (203) is lower than the upper surface of the water collection tank (201). An overflow trough (208) is provided on the upper front side of the water collection tank (201). When the water level inside the water collection tank (201) is higher than the overflow trough (208), the water in the water collection tank (201) can flow into the overflow tank (203) through the overflow trough (208). An overflow alarm is provided inside the overflow tank (203). A water outlet pipe with a plug is provided at the bottom of the overflow tank (203).

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