Ventilation rain protection device and method for an electrical distribution room

Abstract

The application discloses a ventilation and rainproof device and method for a power distribution room, which comprises a frame embedded at a wall ventilation opening of the power distribution room, wherein one side of the frame away from the wall ventilation opening is provided with an embedding structure and an outer frame assembly, the frame and the outer frame assembly are connected through a lock hinge assembly, the outer frame assembly can rotate around one side of the frame, a sealing rubber strip is installed in the embedding structure, the sealing rubber strip comprises an embedding part and a contact part, the embedding part is installed in the embedding structure, the contact part is in contact with a cover plate of the outer frame assembly, when the outer frame assembly is in a closed state, the contact part is deformed under the action of the cover plate, so that the outer frame assembly is sealed with the frame, and when the cover plate is in an open state, edges of the bending part are above the embedding structure. The application solves the problem that the traditional ventilation window has good ventilation effect but cannot block rainwater from penetrating.

Description

Technical Field

[0001] This invention relates to the field of ventilation and protection structure technology, and in particular to a ventilation and rainproof device and method for power distribution rooms. Background Technology

[0002] As the core location of the power transmission and distribution system, the power distribution room houses a large number of precision electrical equipment, including high-voltage switchgear, low-voltage switchgear, instrument transformers, integrated protection devices, and cable trays. The equipment continuously generates heat during operation, and since power distribution rooms are mostly enclosed environments, they easily accumulate humid air, dust, and harmful gases. Therefore, natural ventilation is typically achieved through ventilation windows to maintain a balanced indoor temperature and humidity, meet the heat dissipation needs of the equipment, and ensure the long-term stable operation of the electrical equipment.

[0003] Currently, traditional power distribution room ventilation windows mostly adopt fixed louver or single-layer grille structures. These are simple in structure and offer stable ventilation, making them widely used in various power distribution rooms and substations. However, in actual operation, under harsh conditions such as extreme rainfall, flooding during the rainy season, or road runoff, outdoor water can easily seep into the power distribution room through the gaps in the louvers or grilles, leading to equipment failure. Traditional ventilation windows rely solely on the louvers themselves for natural water blocking, which, while providing good ventilation, has weak waterproofing capabilities and is insufficient to effectively prevent rainwater infiltration. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a ventilation and rainproof device and method for power distribution rooms, which solves the problem that traditional ventilation windows have good ventilation effect but cannot prevent rainwater from seeping in.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: In a first aspect, the present invention provides a ventilation and rainproof device for a power distribution room, comprising: a frame embedded in a ventilation opening in the wall of the power distribution room; an embedding structure and an outer frame assembly are provided on the side of the frame away from the ventilation opening; the frame and the outer frame assembly are connected by a locking hinge assembly; and the outer frame assembly is rotatable around one side of the frame to open and close the ventilation opening; a sealing strip is installed in the embedding structure; the sealing strip includes an embedding part and a contact part; the embedding part is installed in the embedding structure; and the contact part contacts the cover plate of the outer frame assembly. When the outer frame assembly is in a closed state, the contact part is deformed under pressure by the cover plate, thereby sealing the outer frame assembly with the frame; a bent part is provided at the outer edge of the cover plate; when the cover plate is in a closed state, there is a set gap between the bent part and the frame to prevent aging of the sealing assembly; when the cover plate is in an open state, the edge of the bent part is above the embedding structure to prevent rainwater from entering the ventilation opening through the gap between the cover plate and the frame, thus enabling the cover plate to achieve a rainproof function in both open and closed states.

[0006] As a further implementation, the radial cross-section of the embedded portion of the sealing strip is T-shaped or wedge-shaped, the radial cross-section of the groove on the embedded structure is the same as the radial cross-section of the embedded portion, and the radial width of the embedded portion is greater than the radial width of the embedded structure, so that rainwater entering along the gap between the cover plate and the frame flows along the length of the sealing strip.

[0007] As a further implementation, the locking hinge assembly includes a locking structure and a hinge. The hinge is fixedly mounted on the upper end of the frame by a support member, and the bent portion of the cover plate is fixedly mounted on the hinge so that the cover plate can rotate relative to the frame. The locking structure is installed at the lower end of the frame via a support member to lock the cover plate.

[0008] As a further implementation, the support member is a U-shaped bent member. The vertical section of the bent member near the embedded structure is on the same plane as the side wall of the frame where the embedded structure is installed and is fixedly connected to the outer wall of the frame. Its horizontal section is parallel to the surface of the frame, and the hinge or the locking structure is installed on the horizontal section.

[0009] As a further implementation, when the cover is in the closed and locked state, the vertical distance between the inner surface of the cover and the outer surface of the frame is 1.5mm to 3.5mm, so that the sealing strip is compressed to achieve an elastic waterproof seal.

[0010] As a further implementation, a handle is also provided on the cover plate; the outer frame assembly, frame and support are respectively made of anti-corrosion galvanized steel structure, and the handle is made of stainless steel.

[0011] As a further implementation, the frame is fixed to the ventilation opening of the power distribution room wall by pouring concrete, and the sealing material is embedded around the frame. The sealing material is an aging-resistant, dustproof and waterproof foamed sealing strip used to eliminate the gap between the frame and the wall.

[0012] As a further implementation, the sealing strip is a EPDM rubber foam sealing strip with a compression set of no more than 30%.

[0013] As a further implementation, the device has a normal ventilation mode and a closed, waterproof mode: In the normal ventilation mode, the locking structure is in the unlocked state, and the cover is opened at a set angle relative to the frame for ventilation and rain protection; In the closed and waterproof mode, the locking structure locks the cover plate and the frame, and the sealing strip is squeezed between the cover plate and the frame to form a watertight and airtight seal.

[0014] Secondly, the present invention also provides a method for operating a ventilation and rainproof device for a power distribution room, comprising the following steps: When receiving warnings of heavy rain, severe convection, and flooding during the flood season, the cover plate is closed, the locking structure is used to lock the cover plate and frame, and the sealing strip is squeezed to switch the ventilation window from normal ventilation mode to closed waterproof mode. When a message indicating light rain, cloudy, or sunny weather is received, the locking mechanism is opened, and the door panel is lifted using the handle, switching the ventilation window from a watertight and airtight state to a ventilation and rainproof state.

[0015] The beneficial effects of the present invention are as follows: In this invention, the frame and outer frame assembly are connected by a locking hinge assembly, and the outer frame assembly can rotate around one side of the frame to open and close the ventilation opening. A sealing strip is installed in the embedded structure. The sealing strip includes an embedded part and a contact part. The embedded part is installed in the embedded structure, and the contact part contacts the cover plate of the outer frame assembly. When the outer frame assembly is in the closed state, the contact part is deformed under the pressure of the cover plate, so that the outer frame assembly and the frame are sealed. In the event of heavy rain, strong convection, or flooding during the flood season, the locking structure locks the cover plate and the frame, squeezing the sealing strip and switching the ventilation window from the normal ventilation mode to the closed and waterproof mode. A bent part is provided at the outer edge of the cover plate. When the cover plate is closed, there is a set gap between the bent part and the frame to prevent the sealing assembly from aging. When the cover plate is open, the edge of the bent part is above the embedded structure to prevent rainwater from entering the ventilation opening through the gap between the cover plate and the frame, so that the cover plate can achieve the function of rain protection in both the open and closed states. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Figure 1 This is an overall structural diagram of the ventilation and rainproof device in an embodiment of the present invention; Figure 2 This is a side view of the ventilation and rainproof device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the ventilation and rainproof device installed on the wall of the power distribution room in an embodiment of the present invention.

[0018] In the diagram: 1. Frame; 2. Cover plate; 3. Embedded structure; 4. Sealing strip; 5. Support component; 6. Handle; 7. Bend; 8. Hinge; 9. Locking structure; 10. Ventilation opening; 11. Wall of the power distribution room. Detailed Implementation

[0019] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0020] Example 1 This embodiment provides a ventilation and rainproof device for a power distribution room, such as... Figures 1-3 As shown.

[0021] As the core location of the power transmission and distribution system, the power distribution room houses a large number of precision electrical equipment, including high-voltage switchgear, low-voltage switchgear, instrument transformers, integrated protection devices, and cable trays. The equipment continuously generates heat during operation, and since power distribution rooms are mostly enclosed environments, they easily accumulate humid air, dust, and harmful gases. Therefore, natural ventilation is typically achieved through ventilation windows to maintain a balanced indoor temperature and humidity, meet the heat dissipation needs of the equipment, and ensure the long-term stable operation of the electrical equipment.

[0022] Currently, traditional power distribution room ventilation windows mostly adopt fixed louver or single-layer grille structures. These are simple in structure and offer stable ventilation, making them widely used in various power distribution rooms and substations. However, in actual operation, under harsh conditions such as extreme rainfall, flooding during the rainy season, or road runoff, outdoor water can easily seep into the power distribution room through the gaps in the louvers or grilles, leading to equipment failure. Traditional ventilation windows rely solely on the louvers themselves for natural water blocking, which, while providing good ventilation, has weak waterproofing capabilities and is insufficient to effectively prevent rainwater infiltration.

[0023] This embodiment provides a ventilation and rainproof device for a power distribution room, such as... Figures 1-3As shown, the system includes: a frame 1 embedded in the ventilation opening 10 of the wall 11 of the power distribution room; an embedding structure 3 and an outer frame assembly are provided on the side of the frame 1 away from the ventilation opening 10; the frame 1 and the outer frame assembly are connected by a locking hinge assembly, and the outer frame assembly can rotate around one side of the frame 1 to open and close the ventilation opening 10; a sealing strip 4 is installed in the embedding structure 3; the sealing strip 4 includes an embedding part and a contact part; the embedding part is installed in the embedding structure 3, and the contact part contacts the cover plate 2 of the outer frame assembly; when the outer frame assembly is in the closed state, the contact part is deformed under the action of the cover plate 2, so that the outer frame assembly and the frame 1 are sealed; and the system can withstand heavy rain and strong winds. During convection and flood season, the cover plate 2 and frame 1 are locked together by the locking structure 9, and the sealing strip 4 is squeezed to switch the ventilation window from normal ventilation mode to closed waterproof mode. A bend 7 is provided at the outer edge of the cover plate 2. When the cover plate 2 is closed, there is a set gap between the bend 7 and the frame 1. In this embodiment, the gap should be less than 2mm to avoid aging of the sealing components. When the cover plate 2 is open, the edge of the bend 7 is above the embedded structure 3 to prevent rainwater from entering the ventilation opening 10 through the gap between the cover plate 2 and the frame 1, so that the cover plate 2 can achieve the function of rain protection in both open and closed states.

[0024] As a further implementation, the radial cross-section of the embedded part of the sealing strip 4 is T-shaped or wedge-shaped, the radial cross-section of the groove on the embedded structure 3 is the same as the radial cross-section of the embedded part, the radial width of the embedded part is greater than the radial width of the embedded structure 3, and the radial width of the contact part is greater than the radial width of the embedded structure 3, so that rainwater entering along the gap between the cover plate 2 and the frame 1 flows along the length of the sealing strip 4.

[0025] Specifically, the radial cross-section of the embedded part of the sealing strip 4 is T-shaped or wedge-shaped, and the embedded structure 3 that matches it has the same cross-sectional shape. Since the radial width of the embedded part is greater than the radial width of the embedded structure 3, the two form an interference fit. After installation, the embedded part is compressed and elastically deformed, tightly adhering to the inner wall of the groove, thus preventing rainwater from entering the groove on the embedded structure 3 and preventing any possibility of water seepage. When rainwater seeps in from the external gap between the cover plate 2 and the frame 1, it cannot directly penetrate the sealing strip 4. The radial width of the contact part is greater than the radial width of the embedded structure 3, so that a protrusion is formed at the edge of the embedded structure 3 away from the frame 1, so that rainwater is blocked on the top surface of the embedded structure 3, and the contact part guides the rainwater to flow along the length of the rubber strip, and finally discharges from the top two ends of the embedded structure 3.

[0026] By setting the dimensions of the sealing strip 4, directional drainage and internal seepage prevention are achieved, preventing rainwater from penetrating the sealing area laterally and significantly improving dynamic waterproofing performance. Drainage is achieved without the need for additional diversion components, resulting in a compact structure and low manufacturing cost; timely diversion reduces water accumulation.

[0027] As a further implementation, the locking and hinge assembly includes a locking structure 9 and a hinge 8. The hinge 8 is fixedly mounted on the upper end of the frame 1 by a support member 5. The bent portion 7 of the cover plate 2 is fixedly mounted on the hinge 8 so that the cover plate 2 can rotate relative to the frame 1 and rainwater will not seep into the device due to the installation of the hinge. The locking structure 9 is mounted on the lower end of the frame 1 by the support member 5 to lock the cover plate 2 and rainwater will not seep into the device due to the installation of the locking structure.

[0028] The locking assembly, consisting of hinge 8 and locking structure 9, collaboratively opens, closes, and locks the cover plate 2. Hinge 8 is fixed to the upper end of frame 1 via support member 5. The bent portion 7 of cover plate 2 is connected to hinge 8, allowing cover plate 2 to rotate smoothly relative to frame 1 about hinge 8, thus enabling rotary opening or closing of the upper end. Locking structure 9 is installed at the lower end of frame 1 via another support member 5. When cover plate 2 is closed, locking structure 9 engages with the lower edge of cover plate 2, thereby securely locking cover plate 2 in the closed position.

[0029] As a further implementation, the support member 5 is a U-shaped bent member. The vertical section of the bent member close to the embedded structure 3 is on the same plane as the side wall of the frame 1 where the embedded structure 3 is installed, and is fixedly connected to the outer wall of the frame 1. Its horizontal section is parallel to the surface of the frame 1, reducing interference between the edge of the bent part 7 of the cover plate 2 and the frame 1. The hinge 8 or locking structure 9 is installed on the horizontal section.

[0030] The U-shaped bent component serves as a support member 5. Its vertical section is coplanar with the side wall of the frame 1 where the embedded structure 3 is installed and fixed to the outer wall of the frame 1, forming a water barrier. When rainwater flows along the upper surface of the frame 1, this vertical section can effectively block the water flow, preventing it from seeping into the area above the embedded structure 3 through the gap between the bent portion 7 of the cover plate 2 and the frame 1. This reduces the drainage pressure above the embedded structure 3 and improves the outdoor rainproof capability of the device. The horizontal section is parallel to the surface of the frame 1, providing an installation base for the hinge 8 or locking structure 9. At the same time, by raising the installation position, the edge of the bent portion 7 of the cover plate 2 avoids the frame 1 body during opening and closing, preventing direct collision or friction between the two, thereby ensuring smooth movement of the cover plate 2.

[0031] As a further implementation, when the cover plate 2 is in the closed and locked state, the vertical distance between the inner surface of the cover plate 2 and the outer surface of the frame 1 is 1.5mm to 3.5mm, so that the sealing strip 4 is compressed to achieve an elastic waterproof seal.

[0032] Understandably, by controlling the spacing within the range of 1.5mm to 3.5mm, it is possible to ensure that the sealing strip 4 obtains sufficient compression to produce a reliable elastic seal, avoiding water leakage due to insufficient compression, while also preventing the strip from being permanently deformed or difficult to close due to excessive compression. This achieves long-term stable waterproof performance while taking into account both ease of operation and the service life of the sealing components.

[0033] As a further implementation, a handle 6 is also provided on the cover plate 2; the outer frame assembly, frame 1 and support 5 are respectively made of anti-corrosion galvanized steel structure, and the handle 6 is made of stainless steel.

[0034] The handle 6 on the cover plate 2 enables the cover plate 2 to open, close, or move as a whole. The outer frame assembly, frame 1, and support 5 together form the load-bearing skeleton of the device. The anti-corrosion galvanized steel structure can effectively resist environmental corrosion while maintaining structural strength and rigidity, ensuring dimensional stability and support reliability under long-term use. The handle 6 is made of stainless steel, which has high strength and corrosion resistance, and is not prone to rust or deformation during frequent operation.

[0035] As a further implementation, the frame 1 is fixed to the ventilation opening 10 of the power distribution room wall 11 by pouring concrete, and sealing material is embedded around the frame 1. The sealing material is an aging-resistant, dustproof and waterproof foamed sealing strip 4, which is used to eliminate the gap between the frame 1 and the wall.

[0036] In the specific implementation process, a frame 1 is pre-installed at the ventilation opening 10 of the wall 11 of the power distribution room, and the frame 1 is firmly integrated with the wall using a casting process, thereby ensuring the long-term positional stability and structural strength of the frame 1. After the frame 1 is installed and fixed, an aging-resistant, dustproof and waterproof foam sealant is embedded in the contact gap between the frame 1 and the wall. The sealant is EPDM rubber foam sealant, which has good elasticity and compression deformation capacity, and its permanent compression deformation rate is no more than 30%. It can automatically fill the gap with the slight displacement or thermal expansion and contraction between the frame 1 and the wall, and rely on the expansion characteristics of the foam material to form a continuous clamping force, thereby physically blocking the flow path of air, water vapor and dust along the gap.

[0037] As a further implementation, the device has a normal ventilation mode and a closed, waterproof mode: In normal ventilation mode, the locking structure 9 is in the unlocked state, and the cover 2 is opened at a set angle relative to the frame 1 for ventilation and rain protection; In the closed and waterproof mode, the locking structure 9 locks the cover plate 2 and the frame 1, and the sealing strip 4 is squeezed between the cover plate 2 and the frame 1 to form a watertight and airtight seal.

[0038] Example 2 This embodiment provides a method for operating a ventilation and rainproof device for a power distribution room, including the following steps: When receiving warnings of heavy rain, severe convection, and flooding during the flood season, close the cover plate 2, lock the cover plate 2 and frame 1 with the locking structure 9, and squeeze the sealing strip 4 to switch the ventilation window from normal ventilation mode to closed waterproof mode. When a message indicating light rain, cloudy, or sunny weather is received, the locking mechanism 9 is opened, and the door panel is lifted using the handle 6, switching the ventilation window from a watertight and airtight state to a ventilation and rainproof state.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A ventilation and rainproof device for a power distribution room, characterized in that, include: A frame is embedded in the ventilation opening of the wall of the power distribution room. The side of the frame away from the ventilation opening has an embedding structure and an outer frame assembly. The frame and the outer frame assembly are connected by a locking hinge assembly, and the outer frame assembly can rotate around one side of the frame to open and close the ventilation opening. A sealing strip is installed in the embedding structure. The sealing strip includes an embedding part and a contact part. The embedding part is installed in the embedding structure, and the contact part contacts the cover plate of the outer frame assembly. When the outer frame assembly is closed, the contact part is deformed under pressure by the cover plate, sealing the outer frame assembly with the frame. A bent part is provided at the outer edge of the cover plate. When the cover plate is closed, there is a set gap between the bent part and the frame to prevent aging of the sealing assembly. When the cover plate is open, the edge of the bent part is above the embedding structure to prevent rainwater from entering the ventilation opening through the gap between the cover plate and the frame, thus enabling the cover plate to provide rain protection in both open and closed states.

2. A ventilation and rainproof device for a power distribution room according to claim 1, characterized in that, The radial cross-section of the embedded portion of the sealing strip is T-shaped or wedge-shaped. The radial cross-section of the groove on the embedded structure is the same as the radial cross-section of the embedded portion. The radial width of the embedded portion is greater than the radial width of the embedded structure, so that rainwater entering along the gap between the cover plate and the frame flows along the length of the sealing strip.

3. A ventilation and rainproof device for a power distribution room according to claim 1, characterized in that, The locking and hinge assembly includes a locking structure and a hinge. The hinge is fixedly mounted on the upper end of the frame by a support member. The bent portion of the cover plate is fixedly mounted on the hinge so that the cover plate can rotate relative to the frame.

4. A ventilation and rainproof device for a power distribution room according to claim 3, characterized in that, The support member is a U-shaped bent member. The vertical section of the bent member near the embedded structure is on the same plane as the side wall of the frame where the embedded structure is installed and is fixedly connected to the outer wall of the frame. Its horizontal section is parallel to the surface of the frame, and the hinge or the locking structure is installed on the horizontal section.

5. A ventilation and rainproof device for a power distribution room according to claim 4, characterized in that, When the cover is closed and locked, the vertical distance between the inner surface of the cover and the outer surface of the frame is 1.5mm to 3.5mm, which compresses the sealing strip to achieve an elastic waterproof seal.

6. A ventilation and rainproof device for a power distribution room according to claim 4, characterized in that, The cover plate is also provided with a handle; the outer frame assembly, frame and support are respectively made of anti-corrosion galvanized steel structure, and the handle is made of stainless steel.

7. A ventilation and rainproof device for a power distribution room according to claim 1, characterized in that, The frame is fixed to the ventilation opening of the power distribution room wall by pouring concrete, and the sealing material is embedded around the frame. The sealing material is an aging-resistant, dustproof and waterproof foamed sealing strip used to eliminate the gap between the frame and the wall.

8. A ventilation and rainproof device for a power distribution room according to claim 7, characterized in that, The sealing strip is a foamed EPDM rubber sealing strip with a compression set of no more than 30%.

9. A ventilation and rainproof device for a power distribution room according to claim 1, characterized in that, The device has a normal ventilation mode and a closed waterproof mode: In the normal ventilation mode, the locking structure is in the unlocked state, and the cover is opened at a set angle relative to the frame for ventilation and rain protection; In the closed and waterproof mode, the locking structure locks the cover plate and the frame, and the sealing strip is squeezed between the cover plate and the frame to form a watertight and airtight seal.

10. The method of operation of a ventilation and rainproof device for a power distribution room as described in any one of claims 1-5, characterized in that, Includes the following steps: When receiving warnings of heavy rain, severe convection, and flooding during the flood season, the cover plate is closed, the locking structure is used to lock the cover plate and frame, and the sealing strip is squeezed to switch the ventilation window from normal ventilation mode to closed waterproof mode. When a message indicating light rain, cloudy, or sunny weather is received, the locking mechanism is opened, and the door panel is lifted using the handle, switching the ventilation window from a watertight and airtight state to a ventilation and rainproof state.

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