Downpipe anti-freezing device

Abstract

The utility model provides a downpipe anti-freezing device, relates to the technical field of downpipes, and solves the problem of poor anti-freezing effect of downpipes in the north. The device comprises an outer wall body, a roof and a downpipe, the water inlet end of the downpipe extends into a room from the roof, the water outlet end of the downpipe extends out of the room from the outer wall body, and the part, from the wall penetrating position to the water outlet end, of the downpipe is sleeved with a sleeve. A heat conduction cavity used for transferring indoor heat to the outdoor portion of the downpipe is formed between the sleeve and the downpipe, a heat preservation layer is arranged on the outer surface of the outdoor portion of the sleeve, and a shutter baffle assembly is installed on the inner wall face, tightly attached to the outer wall body, between the sleeve and the downpipe. The anti-freezing downpipe has the advantages that indoor temperature is effectively utilized for heat transfer to guarantee that the downpipe is anti-freezing, and the anti-freezing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of downpipe technology, specifically to a downpipe antifreeze device. Background Technology

[0002] In the frigid northern regions, outdoor temperatures are low in winter, and there is a lot of snow on the roof. Under the sun, the snow will gradually melt, but the downpipes on the north wall will freeze due to the shade of the wall, causing blockages and water accumulation on the roof. The freezing at night and melting during the day, repeated freezing and thawing, can easily cause the waterproof layer to age, leading to roof leaks.

[0003] Currently, the main methods for preventing frostbite are as follows:

[0004] 1. Establish an underground drainage system. The roof downpipes are introduced into the underground drainage system from the interior. Although this solution can solve the problem of downpipe freezing, it requires a large investment. Moreover, in the collapsible loess areas of the north, if there is leakage in the underground drainage, it will seriously affect the safety of the building.

[0005] 2. Laying heat tracing tape on the downpipe is a solution that uses electric heating for freeze protection. This method involves a large investment, is unsightly, has high long-term operating costs, requires extensive cable laying, and is unsafe.

[0006] 3. Strengthen the inspection of downpipes and manually remove ice blocks in a timely manner if they are found to be frozen. This plan requires a lot of manpower and the ice blocks cannot be removed if the inspection and cleaning are not timely and the ice has been frozen for too long. Utility Model Content

[0007] The purpose of this invention is to solve the problem of poor antifreeze effect of downpipes in northern regions.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A downpipe antifreeze device is characterized by comprising an exterior wall, a roof, and a downpipe. The inlet end of the downpipe extends from the roof into the room, and the outlet end extends from the exterior wall into the outside. A sleeve is fitted over the portion of the downpipe from the wall penetration point to the outlet end. A heat-conducting cavity is formed between the sleeve and the downpipe to transfer indoor heat to the outdoor portion of the downpipe. An insulation layer is provided on the outer surface of the outdoor portion of the sleeve. A louvered baffle assembly is installed between the sleeve and the downpipe, closely attached to the inner wall of the exterior wall.

[0010] The louvered baffle assembly includes a louvered baffle. A water flow sensor is installed on the inner bottom of the downpipe at the wall penetration position. A louver opener / closer for controlling the opening and closing of the louvered baffle is installed on the outer wall of the downpipe at the position corresponding to the water flow sensor. The water flow sensor is electrically connected to the louver opener / closer, and the louver opener / closer is electrically connected to a power source.

[0011] A further improvement is that the louver opener and the water flow sensor are connected by a thread, and the drain pipe is sealed at the threaded connection hole with structural adhesive.

[0012] A further improvement is that the outlet of the downpipe extends to a height of 50-60cm above the ground, and the insulation layer is a 10cm thick rock wool insulation layer.

[0013] A further improvement is that an anti-erosion stone slab is installed on the ground below the outlet of the downpipe.

[0014] A further improvement is that the roof, from bottom to top, includes a base layer, a slope-forming layer, an insulation layer, a leveling layer, a waterproof layer, and a protective layer.

[0015] A further improvement is that: both the roof and the exterior wall are provided with through holes for downpipes to pass through. The opening position of the through hole on the roof corresponds to the indoor position and is 5-10cm away from the wall surface of the exterior wall; the opening position of the through hole on the exterior wall is 80-100cm above the ground indoors, and the downpipe passing through the exterior wall forms an angle with the wall surface of the exterior wall.

[0016] A further improvement is that the downpipe is a DN110 PVC pipe or a DN110 galvanized steel pipe.

[0017] A further improvement is that the sleeve is a DN200 galvanized steel pipe.

[0018] A further improvement is that the downpipe is connected to the exterior wall via a pipe bracket.

[0019] A further improvement is that a grate plate can be detachably installed at the upper end of the downpipe on the outer surface of the roof.

[0020] Compared with existing technologies, the above technical solution has the following advantages:

[0021] The downpipe is installed indoors and turns to the outside at a certain height. The heat is transferred from the indoors to the outdoor downpipe area by adding a sleeve to protect the downpipe from freezing. The outside of the outdoor sleeve is insulated to reduce heat loss. To enhance the indoor aesthetics and insulation, louvered baffles are added to the sleeve and downpipe. The opening and closing of the louvers are controlled by a water flow sensor inside the downpipe.

[0022] The optimized layout of downpipes effectively utilizes indoor temperature heat transfer to ensure the downpipes are frost-free, providing excellent frost protection and ensuring normal drainage of rainwater and snow from the roof. It features low initial investment, no subsequent operation and maintenance costs, and a wide range of applications, making it suitable for extensive use in civil and industrial buildings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the roof structure in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the louvered baffle assembly in this utility model;

[0027] Figure 4 This is a schematic diagram of the circuit principle structure of the louvered baffle assembly in this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Exterior wall; 2. Parapet wall; 3. Roof; 3. Foundation layer; 31. Slope layer; 32. Insulation layer; 33. Leveling layer; 34. Waterproof layer; 35. Protective layer; 36. Pipe support; 4. Downpipe; 5. Grate; 6. Louvered baffle assembly; 7. Louvered baffle; 71. Louvered opener / closer; 72. Water flow sensor; 73. Power supply; 74. Sleeve; 8. Insulation layer; 9. Anti-erosion slab; 10. Detailed Implementation

[0029] See Figures 1-4 As shown, the technical solution adopted in this specific embodiment is: a downpipe antifreeze device, characterized in that: it includes an outer wall 1, a roof 3, and a downpipe 5. The water inlet end of the downpipe 5 extends into the room from the roof 3, and the water outlet end of the downpipe 5 extends out to the outside from the outer wall 1. A sleeve 8 is provided on the part of the downpipe 5 from the wall penetration position to the water outlet end. A heat-conducting cavity is formed between the sleeve 8 and the downpipe 5 for transferring indoor heat to the outdoor part of the downpipe 5. An insulation layer 9 is provided on the outer surface of the outdoor part of the sleeve 8. A louvered baffle assembly 7 is installed between the sleeve 8 and the downpipe 5, closely attached to the inner wall surface of the outer wall 1.

[0030] The louvered baffle assembly 7 includes a louvered baffle 71. A water flow sensor 73 is installed on the inner bottom of the downpipe 5 at the wall penetration position. A louver opener / closer 72 for controlling the opening and closing of the louvered baffle 71 is installed on the outer wall of the downpipe 5 at the position corresponding to the water flow sensor 73. The water flow sensor 73 is electrically connected to the louver opener / closer 72, and the louver opener / closer 72 is electrically connected to the power supply 74.

[0031] The louver opener 72 and the water flow sensor 73 are connected by threads, and the drain pipe 5 is sealed at the threaded connection hole with structural adhesive. The louver opener 72 and the water flow sensor 73 are connected by threads to achieve a bidirectional fixing effect, and the use of structural adhesive for sealing prevents water leakage.

[0032] The drain pipe 5 extends to a height of 50-60cm above the ground, and the insulation layer 9 is a 10cm thick rock wool insulation layer. The drain outlet being 50-60cm above the ground prevents excessive ice buildup below the outlet, which could cause blockage at the bottom of the drain pipe. The 10cm thick rock wool insulation layer also helps prevent heat loss.

[0033] The ground below the outlet of the downpipe 5 is provided with an anti-erosion stone slab 10. The anti-erosion stone slab can prevent water from flowing with a large drop from eroding and damaging the bottom drainage.

[0034] The roof 3, from bottom to top, includes a base layer 31, a slope-finding layer 32, an insulation layer 33, a leveling layer 34, a waterproof layer 35, and a protective layer 36.

[0035] Both the roof 3 and the exterior wall 1 have through holes for downpipes 5. The through holes in the roof 3 correspond to the indoor positions and are 5-10cm away from the exterior wall 1. The through holes in the exterior wall 1 are located 80-100cm above the ground indoors, and the downpipes 5 passing through the exterior wall 1 form a 45-degree angle with the wall. This allows the downpipes 5 to be led from the indoors through the openings in the exterior wall 1 to the outdoors. The use of 45-degree bends indoors and outdoors, meaning the downpipes 5 passing through the wall form a 45-degree angle with the exterior wall 1, ensures that water flow is minimized and water loss is reduced.

[0036] The downpipe 5 is a DN110 PVC pipe or a DN110 galvanized steel pipe.

[0037] Among them, the sleeve 8 is a DN200 galvanized steel pipe.

[0038] The downpipe 5 is connected to the outer wall 1 via a pipe bracket 4.

[0039] The drain pipe 5 is provided with a detachable grate plate 6 at its upper end, located on the outer surface of the roof 4.

[0040] The working principle of this utility model is as follows: 1. Install downpipes indoors: The downpipes use conventional DN110 pipes, PVC or galvanized steel pipes are both acceptable, and the opening position on the roof corresponds to the indoor position, 5-10cm away from the wall.

[0041] 2. Drain pipe to the outside: Make a hole in the wall between 80-100cm above the ground inside the room and lead the drain pipe from the room to the outside through the hole in the wall. To ensure water flow speed and reduce loss, use a 45-degree elbow inside and outside, that is, the drain pipe through the wall forms a 45-degree angle with the wall.

[0042] 3. Sleeve heat conduction and outdoor insulation: The outdoor downpipe extends to a height of 50-60cm above the ground to prevent excessive ice buildup from clogging the downpipe. From the wall penetration point to the end of the downpipe, a DN200 galvanized steel pipe is added to the outside of the downpipe as a sleeve. The main purpose is to transfer indoor heat to the outdoor part of the downpipe through the gap between the sleeve and the downpipe. The sleeve is insulated with 10cm thick rock wool to prevent heat loss.

[0043] 4. Movable Baffle: A louvered baffle is installed flush against the inner wall between the sleeve and the downpipe. The louvered baffle is powered by a power source. A water flow sensor is installed at the bottom of the downpipe at the wall penetration point. When water flows through the downpipe, the sensor transmits a signal to the louvered baffle opener, opening the louvers and transmitting indoor heat to the sleeve. When the water flow stops, the sensor sends a signal to the opener, closing the louvers. The sensor and opener are connected by threads for bidirectional fixation. Structural adhesive is used to seal the downpipe penetration point to prevent leakage. In summer, when the downpipe is not frozen, the power to the louvered baffle can be turned off, leaving it closed.

[0044] 5. To prevent ice buildup at the drainage point from clogging the bottom of the downpipe, the downpipe is positioned at a certain height above the ground, approximately 50-60cm. To prevent water from being washed away and damaged by a large drop, anti-erosion stone slabs are installed at the bottom of the downpipe to protect the drainage area.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A kind of anti-freezing device for downspout, for its features include outer wall, roof, downspout, the water inlet end of the downspout extends into the room from the roof, the water outlet end of the downspout extends from the outer wall and goes out of the room, the part of the downspout from the position of passing through wall to the water outlet end is equipped with sleeve, the sleeve and the downspout form the heat conduction cavity for the heat transfer to the outdoor part of the downspout between the room, the outer surface of the part of the sleeve located in the outdoor is provided with thermal insulation layer, the baffle assembly of louver is installed between the sleeve and the downspout and the inner wall surface of the outer wall body closely. The louver baffle assembly includes louver, the inner bottom of the downspout at the position of passing through wall is equipped with water flow sensor, the outer wall of the downspout is installed with the louver opening and closing device for controlling the opening and closing of louver at the corresponding place of water flow sensor, the water flow sensor is electrically connected with the louver opening and closing device, and the louver opening and closing device is electrically connected with power supply.

2. A freeze-proof device for a downpipe according to claim 1, characterized in that: The louver opening and closing device and water flow sensor are connected by thread, and the downspout is sealed by structural adhesive at the threaded connection hole.

3. A freeze-proof device for downspout according to claim 1, characterized in that: The water outlet end of the downspout extends to the ground height of 50-60 cm, and the thermal insulation layer is 10 cm thick rock wool thermal insulation layer.

4. A freeze-proof device for a downpipe according to claim 3, characterized in that: The ground below the water outlet end of the downspout is provided with anti-scouring stone plate.

5. A freeze-proof device for a downpipe according to claim 1, characterized in that: The roof includes, from bottom to top, base layer, slope-finding layer, thermal insulation layer, leveling layer, waterproof layer and protection layer.

6. A freeze-proof device for a downpipe according to claim 1, characterized in that: The roof and outer wall body are both provided with through hole for the downspout, and the through hole opening position of the roof corresponds to the indoor position, which is 5-10 cm away from the wall surface of the outer wall body; the through hole opening position of the outer wall body is 80-100 cm away from the ground height from the indoor, and the downspout passing through the outer wall body forms an angle with the wall surface of the outer wall body.

7. A freeze-proof device for downspout according to claim 1, characterized in that: The downspout is DN110 PVC pipe or DN110 galvanized steel pipe.

8. A freeze-proof device for a downpipe according to claim 1, characterized in that: The sleeve is DN200 galvanized steel pipe.

9. A freeze-proof device for a downpipe according to claim 1, characterized in that: The downspout is connected to the outer wall body by pipe support.

10. A freeze-proof device for a downpipe according to claim 1, characterized in that: The upper end of the downspout is detachably provided with grating plate at the outer surface of the roof.

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