Anti-backflow roller shutter door

Abstract

The utility model relates to an anti-backflow roller shutter door, which belongs to the technical field of roller shutter doors and comprises a roller shutter door, a waterproof tensioning sealing strip is arranged on the lower edge of a door plate, a compression air bag used for sealing the side edge of the door plate is arranged on the side face of a door frame, and the compression air bag is inflated through an external air source. After the door plate is pressed downwards, the tensioning sealing strip blocks a gap between the lower edge of the door plate and the ground through the C-shaped pressing strips and the tensioning strips, the gap between the door plate and the door frame can be tensioned and filled after the pressing air bag is inflated, the overall sealing performance of the roller shutter door is improved, and the heavy operation of stacking sandbags for water prevention is avoided; with the adoption of the structure, the roller shutter door can realize quick and efficient water resistance.

Description

Technical Field

[0001] The utility model relates to a backflow prevention rolling shutter door, belonging to the technical field of rolling shutter doors. Background Art

[0002] Rolling shutter doors are widely used in construction sites, warehouses and other fields. There is a gap between the bottom edge of the door panel of a traditional rolling shutter door and the ground, and there is also a gap between the two sides of the door panel and the door frame. Therefore, when it rains, rainwater collected on the ground will flow into the room along the gap and cause backflow to the building. Conventionally, in order to prevent rainwater from backflowing, people use sandbags to stack at the bottom of the rolling shutter door for waterproofing. However, this waterproofing method has significant disadvantages: first, manual handling, stacking and removal of sandbags is time-consuming and labor-intensive, and the operation efficiency is low; second, the sandbags will seep during the long-term placement process, and the waterproof stability is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a backflow-proof rolling shutter door, improve the waterproof efficiency and waterproof stability of the rolling shutter door, and reduce the labor intensity of personnel in waterproof operation.

[0004] The utility model provides an anti-backflow rolling shutter door, comprising a rolling shutter door, which comprises a door frame and a door panel. The lower edge of the door panel is provided with a tightening sealing strip for waterproofing, and the side of the door frame is provided with a compression airbag for sealing the side of the door panel. The compression airbag is inflated by an external air source.

[0005] The tension sealing strip includes: a support block clamped on the bottom surface of the door panel, a number of C-shaped pressure strips are evenly arranged on the bottom surface of the support block, and a frame and a hollow tension strip are also provided on the bottom surface of the door panel. The frame is sleeved in the tension strip; the tension strip and the frame are arranged between the C-shaped pressure strips.

[0006] Furthermore, the C-shaped pressure strip includes: a support portion connected to the bottom surface of the support block, one end of the support portion is connected to an arc-shaped neck, one end of the neck extends to a close portion in contact with the ground, and the edge of the close portion is contracted.

[0007] Furthermore, the frame includes: a fixing portion, one end of which is forked and provided with an elastic pressure foot, and the elastic pressure foot can expand to support the tensioning strip.

[0008] Furthermore, the compression airbag includes: a support plate arranged at the lower end of the door frame, an airbag is arranged on the side of the support plate, and the airbag is pressed against the side of the door panel after expansion.

[0009] Furthermore, a gas interface of the airbag is provided on the support plate, and a gas valve is provided on the gas interface.

[0010] Furthermore, the tensioning strip and the C-shaped pressure strip are made of rubber sealing material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] After the door panel is pressed down, the expansion sealing strip fills the gap between the lower edge of the door panel and the ground through a number of C-shaped pressure strips and expansion strips. After the compression airbag is inflated, it can be tightened to fill the gap between the door panel and the door frame, thereby improving the overall sealing of the rolling shutter door and avoiding the heavy operation of stacking sandbags for waterproofing. The rolling shutter door with the above structure can achieve fast and efficient waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an anti-backflow rolling shutter door of the utility model;

[0014] Figure 2 This is a schematic cross-sectional view of a tightening sealing strip for a backflow prevention rolling shutter door of the utility model;

[0015] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of an anti-backflow rolling shutter door.

[0016] In the picture:

[0017] 1. Rolling door; 101. Door frame; 102. Door panel;

[0018] 2. Compress the airbag; 201. Support plate; 202. Airbag;

[0019] 3. Tightening sealing strip; 301. Support block; 302. C-shaped pressure strip; 3021. Support part; 3022. Neck; 3023. Close-fitting part; 303. Tightening strip; 304. Frame; 3041. Elastic pressure foot; 3042. Fixing part. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 3 As shown, this embodiment is implemented through the following technical solutions: the rolling shutter door 1 includes: a door frame 101 and a door panel 102, the lower edge of the door panel 102 is provided with a tightening sealing strip 3 for waterproofing, and the side of the door frame 101 is provided with a compression airbag 2 for sealing the side of the door panel 102, and the compression airbag 2 is inflated by an external air source.

[0021] The tensioning sealing strip 3 includes: a support block 301 clamped on the bottom surface of the door panel 102, and a number of C-shaped pressure strips 302 are evenly arranged on the bottom surface of the support block 301. The bottom surface of the door panel 102 is also provided with a frame 304 and a hollow tensioning strip 303, and the frame 304 is sleeved in the tensioning strip 303; the tensioning strip 303 and the frame 304 are arranged between the C-shaped pressure strips.

[0022] Specifically, the C-shaped pressure strip 302 includes: a support portion 3021 connected to the bottom surface of the support block 301, one end of the support portion 3021 is connected to an arc-shaped neck 3022, one end of the neck 3022 extends to a close-fitting portion 3023 in contact with the ground, and the edge of the close-fitting portion 3023 is contracted, such as Figure 2 shown.

[0023] Specifically, the frame 304 includes a fixing portion 3042 , one end of which is bifurcated to provide an elastic pressure foot 3041 , and the elastic pressure foot 3041 can expand to support the tensioning strip 303 .

[0024] In this embodiment, the frame 304 is made of an elastic material. The elastic pressure feet 3041 expand to both sides under the downward pressure of the door panel 102. After the elastic pressure feet 3041 expand, they support the tension strip 303 to both sides. The lower part of the tension strip 303 is in contact with the ground. The two sides of the tension strip 303 are in contact with the C-shaped pressure strip 302 on both sides under the action of the elastic pressure feet 3041, thereby re-pressing and sealing the C-shaped pressure strip 302. The opening of the C-shaped pressure strip 302 faces the outside of the door. When the door panel 102 is pressed downward, the C-shaped pressure strip 302 is in contact with the ground through elastic deformation.

[0025] Specifically, the compression airbag 2 includes: a support plate 201 provided at the lower end of the door frame 101 , an airbag 202 provided on the side of the support plate 201 , and the airbag 202 is pressed against the side of the door panel 102 after expansion.

[0026] Specifically, the support plate 201 is provided with a gas interface for the airbag 202, and the gas interface is provided with an air valve. In this embodiment, the airbag 202 can be inflated by an external air pump, and the air valve is a one-way valve. When the airbag 202 needs to be deflated, the air valve can be manually opened to achieve deflation.

[0027] Specifically, the tensioning strip 303 and the C-shaped pressing strip 302 are made of rubber sealing material.

[0028] The specific operating principle of this utility model is as follows:

[0029] When door panel 102 is lowered, the tensioning seal 3 is pressed against the ground under pressure. The elastic deformation of the internal sealing component of the tensioning seal 3 ensures a high degree of contact between door panel 102 and the ground, thereby improving the waterproof performance of the bottom of rolling door 1. To waterproof during the rainy season, door panel 102 must first be completely lowered. Then, the compression airbag 2 is manually inflated using an external air source such as an air pump. Once the airbag 202 is inflated and pressed against the side of door panel 102, the side of rolling door 1 is waterproofed. Once the external water recedes, the air valve is opened to drain the airbag 202, allowing rolling door 1 to open normally.

[0030] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A backflow prevention rolling shutter door, comprising a rolling shutter door (1), the rolling shutter door (1) further comprising: The door frame (101) and the door panel (102) are characterized in that a waterproof expansion sealing strip (3) is provided on the lower edge of the door panel (102), and a compression air bag (2) is provided on the side of the door frame (101) for sealing the side of the door panel (102), and the compression air bag (2) is inflated by an external air source; The expansion sealing strip (3) comprises: a support block (301) clamped on the bottom surface of the door panel (102); a plurality of C-shaped pressure strips (302) are evenly arranged on the bottom surface of the support block (301); a frame (304) and a hollow expansion strip (303) are also arranged on the bottom surface of the door panel (102); the frame (304) is sleeved in the expansion strip (303); and the expansion strip (303) and the frame (304) are arranged between the C-shaped pressure strips.

2. The anti-backflow rolling shutter door according to claim 1, characterized in that: The C-shaped pressure strip (302) comprises: a support portion (3021) connected to the bottom surface of the support block (301); one end of the support portion (3021) is connected to an arc-shaped neck (3022); one end of the neck (3022) extends to form a contact portion (3023) in contact with the ground; and the edge of the contact portion (3023) is in a contracted shape.

3. The anti-backflow rolling shutter door according to claim 2, characterized in that: The frame (304) comprises a fixing portion (3042), one end of which is bifurcated and provided with an elastic pressure foot (3041), and the elastic pressure foot (3041) can expand to support the tensioning strip (303).

4. The anti-backflow rolling shutter door according to claim 1, characterized in that: The compression air bag (2) comprises: A support plate (201) is arranged at the lower end of the door frame (101), and an air bag (202) is arranged on the side of the support plate (201). After the air bag (202) is expanded, it is closely attached to the side of the door panel (102).

5. The anti-backflow rolling shutter door according to claim 2, characterized in that: A gas interface of the air bag (202) is provided on the support plate (201), and a gas valve is provided on the gas interface.

6. The anti-backflow rolling shutter door according to claim 2, characterized in that: The tensioning strip (303) and the C-shaped pressing strip (302) are made of rubber sealing material.

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