Backflow prevention drainage door and window component

Abstract

The application relates to the technical field of doors and windows, and particularly discloses a backflow-preventing drainage door and window component, which comprises an outer profile frame, an inner profile frame and a heat-insulating broken bridge strip, a water leakage slot is arranged on the upper surface of the outer profile frame, a corresponding drainage slot is arranged on the outer surface of the outer profile frame, and a backflow-preventing drainage piece is arranged between the water leakage slot and the drainage slot; the backflow-preventing drainage piece comprises a water leakage box and a drainage box, a slot is arranged on the inner end upper surface of the drainage box, a water leakage hole is arranged on the upper surface of the water leakage box, a floating block is attached to the inside of the water leakage box, a spring is connected between the floating block and the top wall of the water leakage box, a flow-through groove is arranged on the side surface of the floating block, and an enclosed groove column is arranged on the side wall of the water leakage box; the backflow-preventing drainage door and window component disclosed by the application can automatically make actions under three kinds of weather, can not only ensure smooth drainage of rainwater and prevent mosquitoes from entering indoor, has a good backflow-preventing effect, and has the advantages of simple structure, convenient installation and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of doors and windows, and particularly discloses a reverse-flood-preventing drainage door and window component. BACKGROUND

[0002] The existing drainage methods of doors and windows mainly include three methods of open drainage, hidden drainage and floor drain drainage, wherein the open drainage is to open a drainage hole on the outward-facing door and window profile, which has the advantages of simple structure and better drainage effect compared with the other two drainage methods. However, the design method of the open drainage of doors and windows not only allows mosquitoes to enter the house through the drainage channel, but also has the problem of rainwater reverse flooding in strong wind and storm weather.

[0003] For example, the application No. 2020110376473 discloses an energy-saving door and window with smooth drainage, which comprises a fixed window frame, the fixed window frame comprises an outer window frame and an inner window frame connected by a heat insulation broken bridge, the outer window frame adopts a window frame profile with a hollow cavity, the upper surface of the hollow cavity is provided with a water leakage opening, the outdoor side surface of the hollow cavity is provided with a drainage opening, a water guide cavity pipe is arranged in the hollow cavity, and the upper surface and the outdoor side surface of the water guide cavity pipe are provided with water leakage holes and drainage holes corresponding to and opposite to the water leakage opening and the drainage opening. The energy-saving door and window disclosed by the application can cover and open the water leakage hole by moving the windproof slide, which can effectively prevent mosquitoes from entering the house through the drainage channel. However, the windproof slide needs to be manually operated, which makes it difficult to seal the water leakage hole in time when no one is at home. In addition, in order to achieve smooth drainage in rainy weather, the water leakage hole needs to be opened, and after the water leakage hole is opened, rainwater reverse flooding is likely to occur due to strong wind and heavy rain. Therefore, in view of the deficiencies of the existing open drainage method of doors and windows, the present application provides a reverse-flood-preventing drainage door and window component which can effectively solve the above technical problems. SUMMARY

[0004] The purpose of the present application is to provide a reverse-flood-preventing drainage door and window component which can prevent mosquitoes from entering the house through the drainage channel in sunny weather and automatically open the drainage channel to achieve smooth drainage in rainy weather while having rainwater reverse-flood-preventing performance.

[0005] The present application is achieved by the following technical solutions:

[0006] A reverse-flood-preventing drainage door and window component, comprising an outer profile frame, an inner profile frame and a heat insulation broken bridge strip, a water leakage groove is opened on the upper surface of the outer profile frame, a corresponding drainage groove is opened on the outer surface of the outer profile frame, and a reverse-flood-preventing drainage piece is arranged between the water leakage groove and the drainage groove.

[0007] The anti-backflow drainage device comprises a leakage box installed in a leakage slot and a drainage box installed in a drainage slot, an insertion slot matching the lower end of the leakage box is formed on the upper surface of the inner end of the drainage box, a leakage hole is formed on the upper surface of the leakage box, a floating block is attached inside the leakage box, a spring is connected between the floating block and the top wall of the leakage box, a vertical flow-through groove is formed on the side surface of the floating block, and an enclosure groove column matching the flow-through groove is arranged on the side wall of the leakage box.

[0008] A moving extrusion strip is limitingly and slidingly connected to the top wall of the drainage box, an inclined surface strip extending into the drainage box and acting on the inner end of the moving extrusion strip is arranged on the lower surface of the floating block, a windward plate is arranged at the outer end of the moving extrusion strip, and a flow gap for rainwater is left between the windward plate and the bottom wall of the drainage box.

[0009] When it is sunny, there is no accumulated water in the leakage box above the floating block, at this time, the weight of the floating block is not enough to overcome the tension of the spring, so that the floating block is close to the upper side of the leakage box, at this time, the flow-through groove on the side surface of the floating block and the enclosure groove column on the side wall of the leakage box have a certain overlapping part, so that the flow-through groove can be sealed by the enclosure groove column, at this time, the drainage channel in the entire anti-backflow drainage device is blocked, so that mosquitoes cannot enter the indoor through the drainage channel.

[0010] In ordinary rainfall weather, rainwater on the door and window component flows downward and accumulates in the leakage box, at this time, the weight of the floating block and the rainwater overcomes the tension of the spring to make the floating block move downward, so that the flow-through groove on the side surface of the floating block is separated from the enclosure groove column, and then the flow-through groove is opened, and then the accumulated rainwater in the leakage box can flow into the drainage box, and then is discharged by the drainage box.

[0011] In strong storm weather, strong wind flow carries rainwater to the outer end opening of the drainage box and enters the inside of the drainage box, and there is a certain risk of rainwater backflow. At this time, the strong wind flow also blows to the windward plate, thereby pushing the windward plate to the inner end of the drainage box, and then forcibly pushing the floating block upward through the action between the moving extrusion strip and the inclined surface strip, so that the originally unobstructed flow-through groove is blocked by the enclosure groove column, avoiding the backflow phenomenon of the rainwater in the drainage box through the flow-through groove. Finally, when the strong wind flow disappears and the rainwater does not enter the drainage box, the floating block can again open the flow-through groove for drainage under the action of the gravity of the accumulated water above, ensuring smooth drainage of the entire door and window component.

[0012] As a further arrangement of the above-mentioned scheme, the upper end of the water leakage box is provided with a first convex edge extending to the periphery, the outer end of the drainage box is provided with a second convex edge extending to the periphery, and the first convex edge and the second convex edge are fixedly connected with the outer profile frame by screws. The design of the first convex edge and the second convex edge can limit and position the water leakage box and the drainage box when they are installed with the outer profile frame.

[0013] As a further arrangement of the above-mentioned scheme, the upper surface of the floating block is provided with a water accumulation groove, and the gravity of rainwater in the water accumulation groove can make the floating block move downward to open the flow-through groove against the action of the spring. The design of the water accumulation groove can keep the flow-through groove in a smooth drainage state in rain weather on non-strong wind days, realizing efficient drainage.

[0014] As a further arrangement of the above-mentioned scheme, the upper surface of the floating block is provided in a slope shape, and the lower end of the upper surface of the floating block is arranged at one side of the flow-through groove. The floating block is arranged in a slope shape, which can accelerate the flow of accumulated water to one side of the flow-through groove, and further accelerate the drainage of accumulated water above the floating block.

[0015] As a further arrangement of the above-mentioned scheme, the flow-through groove arranged on the side surface of the floating block is a plurality of flow-through grooves arranged side by side. The design of the plurality of flow-through grooves can improve the drainage speed of the entire anti-backflow drainage device.

[0016] As a further arrangement of the above-mentioned scheme, a limiting slide rail is arranged on the top wall of the drainage box outside the insertion slot, and the movable extrusion strip is slidingly arranged on the limiting slide rail. The design of the limiting slide rail can realize the stable movement of the movable extrusion strip and the windward plate to the inner end of the drainage box after being subjected to strong wind flow.

[0017] As a further arrangement of the above-mentioned scheme, the lower end of the windward plate is arranged in an outwardly curved arc shape, a plurality of guide strips are arranged on the outer end of the drainage box, and the ventilation gap formed between adjacent two guide strips is arranged in an upward inclination. The shape design of the lower end of the windward plate in cooperation with the upward inclination design of the ventilation gap can make the strong wind flow act more on the windward plate, and further make the entire anti-backflow drainage device more sensitive in the case of facing rainwater backflow.

[0018] As a further arrangement of the above-mentioned scheme, the flow gap between the windward plate and the bottom wall of the drainage box is arranged between 2mm and 4mm.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The anti-backflow drainage door and window component disclosed by the application can seal the drainage channel in non-rainy weather, avoid mosquitoes entering the house, automatically open the drainage channel in non-strong wind and rainy weather, realize rapid drainage of water accumulated on the door and window component, temporarily seal the drainage channel in strong wind and rainy weather, avoid backflow of rainwater, and open the drainage channel again to realize smooth drainage when the strong wind disappears.

[0021] The anti-backflow drainage component in the application only needs to insert the drainage box into the drainage slot and fix it with screws, then insert the water leakage box into the water leakage slot and fix it with screws after the lower end of the water leakage box is inserted into the inner end of the drainage box when the anti-backflow drainage component is combined and assembled with the outer profile frame. The structure design of the entire anti-backflow drainage component is simple, convenient and fast to install, does not need to make corresponding changes to the structure of the outer profile frame, can be assembled and used with various types of profile doors and windows, and has high applicability and practicality. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the outer profile frame in the application;

[0024] Figure 2 It is a sectional internal planar structure schematic diagram of the outer profile frame in the application;

[0025] Figure 3 It is a first angle three-dimensional structure schematic diagram of the outer profile frame in the application;

[0026] Figure 4 It is a second angle three-dimensional structure schematic diagram of the outer profile frame in the application;

[0027] Figure 5 It is an external three-dimensional structure schematic diagram of the anti-backflow drainage component after combination in the application;

[0028] Figure 6 It is an internal planar structure schematic diagram of the anti-backflow drainage component after combination in the application;

[0029] Figure 7 It is a three-dimensional structure schematic diagram of the anti-backflow drainage component during assembly in the application;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the water leakage box, floating block, and inclined surface in this invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the water leakage box, floating block, spring, etc. in this invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-9 This application will be described in detail with reference to the embodiments. Example 1

[0034] Example 1 discloses an anti-backflow drainage door and window component, see attached drawing. Figure 1 The entire door and window assembly includes an outer profile frame 1, an inner profile frame 2, and thermal break strips 3. The two ends of the upper and lower thermal break strips 3 are connected to the outer profile frame 1 and the inner profile frame 2, respectively, thereby improving the thermal insulation effect of the entire door and window assembly. Then, sound-absorbing sponge 4 is installed in the space enclosed by the upper and lower thermal break strips 3, the outer profile frame 1, and the inner profile frame 2, thereby improving the sound insulation effect of the entire door and window.

[0035] Reference Appendix Figure 3 and attached Figure 4 A row of drainage slots 101 is provided on the upper surface of the outer profile frame 1, and a drainage slot 102 corresponding to each drainage slot 101 is provided on the outer surface of the outer profile frame 1, so that the drainage slots 101 and drainage slots 102 are at the same position in the length direction of the outer profile frame 1. Then, an anti-backflow drainage component 5 is detachably installed between the mutually aligned drainage slots 101 and drainage slots 102.

[0036] Reference Appendix Figure 2 and appendix Figures 5-9, the anti-inversion drainage device 5 comprises a leakage box 501 matched with the leakage groove 101 and a drainage box 502 matched with the drainage groove 102, the upper end of the leakage box 501 extends with a first convex edge 5011 around, so that the leakage box 501 has a positioning function during installation in the leakage groove 101, avoiding the leakage box 501 being pressed into the inside of the outer profile frame 1 through the leakage groove 101. Similarly, the outer end of the drainage box 502 extends with a second convex edge 5021 around, then not less than two screw holes are formed on the first convex edge 5011 and the second convex edge 5021, and the leakage box 501 and the drainage box 502 can be fixedly installed on the outer profile frame 1 through the screws 503.

[0037] A plurality of leakage holes 5012 are formed on the upper surface of the leakage box 501, and a floating block 505 is arranged in the inside of the leakage box 501, which is arranged in close contact with the inner cavity wall of the leakage box 501, so as to avoid the rainwater flowing up and down through the gap between them. The upper ends of the springs 506 are fixedly connected with the top wall of the leakage box 501, and the lower ends of the springs 506 are connected with the upper ends of the floating block 505. A plurality of vertical and parallel flow-through grooves 5051 are formed on one side of the floating block 505, and an enclosure groove column 504 is arranged on the side wall of the leakage box 501 in close contact with the flow-through grooves 5051. When there is no rainwater in the leakage box 501 above the floating block 505, due to the pulling force of the springs 506, there is a certain overlapping space between the upper end of the flow-through groove 5051 and the lower end of the enclosure groove column 504, so as to seal the lower end of the flow-through groove 5051, which can effectively prevent mosquitoes from entering the inside of the house through the flow-through groove 5051. When it rains, the rainwater on the door and window will gather in the leakage box 501 above the floating block 505 through the leakage holes 5012, at this time, under the action of the gravity of the rainwater, the floating block 505 will move downward to overcome the pulling force of the springs 506, so that the upper end of the flow-through groove 5051 is separated from the lower end of the enclosure groove column 504, at this time, the rainwater can be drained through the flow-through groove 5051 to the lower side of the leakage box 501.

[0038] In addition, a certain depth of a water accumulation groove 5052 is formed on the upper surface of the floating block 505, and the gravity of all the rainwater remaining in the water accumulation groove 5052 can completely overcome the pulling force of the springs 506 to move the floating block 505 downward, so as to ensure that the flow-through groove 5051 is always in an open state in rainy weather. At the same time, the upper surface of the floating block 505 is arranged in a slope shape, and the lower end thereof is arranged on one side of the flow-through groove 5051, so that the rainwater can flow to one side of the flow-through groove 5051 after entering the leakage box 501, thereby accelerating the drainage of the rainwater.

[0039] The upper surface of the drainage box 502 is provided with a slot 5022 matched with the lower end of the leakage box 501, so that the lower end of the leakage box 501 can extend into the drainage box 502 after the leakage box 501 and the drainage box 502 are fixedly installed in the outer profile frame 1, so that the inner cavity of the entire anti-backflow drainage device 5 forms an L-shaped drainage channel, ensuring that the rainwater flowing down on the door and window can be discharged from the outer end of the drainage box 502.

[0040] The anti-backflow drainage door and window component disclosed in Embodiment 1 is installed by first extending the drainage box 502 into the outer profile frame 1 along the drainage groove 102 and then fixedly connecting it by screws. Then, the leakage box 501 is extended into the outer profile frame 1 along the leakage groove 101, and the lower end of the leakage box 501 is connected to the slot 5022, so that the lower end of the leakage box 501 extends into the leakage box 501. Finally, the leakage box 501 is fixedly connected to the outer profile frame 1 by screws, making the installation of the entire anti-backflow drainage device 5 and the outer profile frame 1 more convenient. In addition, in order to ensure the waterproof sealing of the leakage box 501 and the drainage box 502 installed on the outer profile frame 1, corresponding waterproof glue needs to be applied.

[0041] In non-rainy weather, since there is no water accumulation in the leakage box 501 above the floating block 505, under the action of the pulling force of the spring 506, there is a certain overlapping space between the upper end of the flow-through groove 5051 and the lower end of the sealing groove column 504, thereby sealing the lower end of the flow-through groove 5051, which can effectively prevent mosquitoes from entering the house through the flow-through groove 5051.

[0042] In rainy weather, the rainwater on the door and window will gather in the leakage box 501 above the floating block 505 through the leakage hole 5012, and under the action of the gravity of the rainwater, the floating block 505 will move downward to overcome the pulling force of the spring 506, so that the upper end of the flow-through groove 5051 is separated from the lower end of the sealing groove column 504, and then the rainwater can be discharged through the flow-through groove 5051 to the lower part of the leakage box 501. At the same time, due to the existence of the water accumulation groove 5052 at the upper end of the floating block 505, part of the rainwater will remain in the water accumulation groove 5052, and the gravity of the remaining part of the rainwater can also overcome the pulling force of the spring 506 to move the floating block 505 downward, thereby ensuring that the flow-through groove 5051 is always in an open state in rainy weather, realizing efficient drainage of the door and window. Embodiment 2

[0043] Embodiment 2 discloses an anti-backflow drainage door and window component which is further optimized and improved based on the technical scheme in Embodiment 1, and the same parts as Embodiment 1 will not be described again.

[0044] Reference is made to the accompanying drawings Figures 5-8The inclined surface strip 507 is provided on the lower surface of the floating block 505 and extends into the drainage box 502. The cross section of the inclined surface strip 507 is designed as a trapezoidal or triangular shape, and the inclined surface on the inclined surface strip 507 is arranged to face the opening of the outer end of the drainage box 502. A limiting slide rail 5023 is arranged on the top wall of the drainage box 502 outside the slot opening 5022, and then a moving extrusion strip 508 is slidably arranged on the limiting slide rail 5023, and the outer end of the moving extrusion strip 508 is also arranged as an inclined surface matching the inclined surface strip 507. At the same time, a windward plate 509 extending downward is connected to the outer end of the moving extrusion strip 508, and a water flow gap of 2-4 mm is still left between the lower end of the windward plate 509 and the bottom wall of the drainage box 502.

[0045] In addition, in order to improve the influence of the windward plate 509 on the external wind force, the lower end of the windward plate 509 is designed as an arc-shaped curve outwardly curved. At the same time, a plurality of guide strips 510 are arranged on the outer end of the drainage box 502, and the ventilation gaps between the guide strips are designed to be inclined upward, so that the external airflow can blow more towards the windward plate 509 when entering the drainage box 502, so that the windward plate 509 is subjected to greater wind force, and then moves towards the inner end.

[0046] The anti-backflow drainage door and window component disclosed in Embodiment 2 can prevent the strong wind blowing towards the drainage box 502 from carrying rainwater into the inside of the drainage box 502, thereby preventing backflow to a certain extent. Through the design of the guide strips 510 and the windward plate 509, the airflow of the strong wind can be concentrated on the windward plate 509, thereby pushing the moving extrusion strip 508 to move towards the inner end of the drainage box 502, and then under the extrusion action between the moving extrusion strip 508 and the inclined surface strip 507, the floating block 505 is forcibly pushed upwards, so that the originally opened flow-through groove 5051 is again coincided with the plug-in of the sealing groove column 504, thereby realizing the sealing of the flow-through channel in the inner cavity of the entire anti-backflow drainage component 5, and effectively avoiding the occurrence of rainwater backflow.

[0047] When the strong wind blowing towards the drainage box 502 stops, the rainwater also stops backflowing from the outer end of the drainage box 502 to the inside, at this time, with the increasing rainwater in the water leakage box 501 above the floating block 505, the floating block 505 is again pushed downwards under the gravity of the rainwater, so that the flow-through groove 5051 is again opened to realize the rapid drainage of the accumulated water.

[0048] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A backflow-preventing drainage door and window member comprising an outer profile frame, an inner profile frame and a thermally broken strip, characterized in that, The upper surface of the outer profile frame is provided with a water leakage notch, and the outer surface of the outer profile frame is provided with a corresponding drainage notch, and a backflow prevention drainage device is arranged between the water leakage notch and the drainage notch; The backflow prevention drainage device comprises a water leakage box mounted in the water leakage notch and a drainage box mounted in the drainage notch, an insertion notch matched with the lower end of the water leakage box is formed in the inner upper surface of the drainage box, a water leakage hole is formed in the upper surface of the water leakage box, a floating block is arranged in the water leakage box, a spring is connected between the floating block and the top wall of the water leakage box, a vertical flow-through groove is formed in the side surface of the floating block, and an enclosing groove column matched with the flow-through groove is arranged on the side wall of the water leakage box; A movable extrusion strip is limitingly and slidingly connected to the top wall of the drainage box, an inclined surface strip extending into the drainage box and acting on the inner end of the movable extrusion strip is arranged on the lower surface of the floating block, and a windward plate is arranged at the outer end of the movable extrusion strip, and a flow gap for rainwater is left between the windward plate and the bottom wall of the drainage box.

2. A back-flow preventing drainage door and window member according to claim 1, characterized in that The upper end of the water leakage box is provided with a first convex edge extending to the periphery, the outer end of the drainage box is provided with a second convex edge extending to the periphery, and the first convex edge and the second convex edge are fixedly connected to the outer profile frame by screws.

3. The back-flow preventing drainage door and window member according to claim 1, characterized by A water accumulation groove is formed in the upper surface of the floating block, and the gravity of rainwater in the water accumulation groove can make the floating block move downward to open the flow-through groove against the action of the spring.

4. The back-flow preventing drainage door and window member according to claim 1, characterized by The upper surface of the floating block is arranged in a slope shape, and the end of the upper surface of the floating block with a lower height is arranged on one side of the flow-through groove.

5. The back-flow preventing drainage door and window member according to claim 1, wherein The flow-through groove formed in the side surface of the floating block is a plurality of flow-through grooves arranged side by side.

6. The back-flow preventing drainage door and window member according to claim 1, wherein A limit sliding rail is arranged on the top wall of the drainage box outside the insertion notch, and the movable extrusion strip is slidingly arranged on the limit sliding rail.

7. The back-flow preventing drainage door and window member according to claim 1, wherein The lower end of the windward plate is arranged in an arc shape curved outward, a plurality of guide strips are arranged on the outer end of the drainage box, and the ventilation gaps formed between adjacent two guide strips are arranged in an upward inclination.

8. The back-flow preventing drainage door and window member according to claim 1 or 7, characterized by The flow gap between the windward plate and the bottom wall of the drainage box is arranged to be between 2 mm and 4 mm. The flow gap between the windward plate and the bottom wall of the drainage box is arranged to be between 2 mm and 4 mm.

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