Wind pressure resistant structure of garage door and track

Abstract

The utility model relates to the technical field of garage doors, in particular to a wind pressure resistant structure of a garage door and a track, which comprises a rolling component, a door curtain and a guide rail, and sealing edge strips capable of sealing a gap between the door curtain and the guide rail are arranged on two sides of the door curtain. The sealing edge strip is arranged to slide in the length direction of the guide rail, a limiting part is arranged at one end of the sealing edge strip, the guide rail is provided with a stopping part corresponding to the limiting part, the section of the sealing edge strip and the section of the guide rail are of a T-shaped structure, and the sealing edge strip can slide in the width direction of the door curtain. A sealing strip is arranged between the limiting part and the stopping part, and a buffering cavity used for buffering is formed in the sealing strip; when the door curtain is subjected to wind pressure, the door curtain deforms, at the moment, the limiting part can slide in the width direction of the door curtain to compress the buffering cavity, the wind pressure enabling the door curtain to deform is buffered, the deformation amplitude of the door curtain is reduced, and the wind pressure resistance of the door curtain is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garage doors, and particularly relates to a wind-resistant structure for a garage door and a track. Background Art

[0002] Garage doors are common facilities in urban construction, applicable to residential garages, shopping mall garages, etc. Common garage doors mainly include rolling shutter garage doors and sectional garage doors. Among them, rolling shutter garage doors include ordinary rolling shutter garage doors, stainless steel rolling shutter garage doors, aluminum alloy rolling shutter garage doors, foamed rolling shutter doors, inorganic cloth fireproof rolling shutter garage doors, etc. The door body of the inorganic cloth fireproof rolling shutter door is light in weight, requires a small motor power for winding, and has good fireproof performance, so it is widely used.

[0003] The door curtain of the inorganic cloth fireproof rolling shutter garage door is made of fireproof cloth. Although it is light in weight, its texture is soft and its strength is insufficient. The door curtain is prone to deformation. When the wind force is large, the door curtain sags and deforms, and the door curtain is repeatedly subjected to a large wind pressure, resulting in fatigue and being prone to rupture, causing the garage door to lose its protective function. Summary of the Utility Model

[0004] In view of the technical problems existing in the garage door and the track in the prior art, the first aspect of the utility model provides a wind-resistant structure for a garage door and a track, including:

[0005] A winding component, which is internally provided with a winding shaft and a driving component;

[0006] A door curtain, one end of which is connected to the winding shaft inside the winding component, and the other end is provided with a bottom beam for maintaining the width of the door curtain;

[0007] Guide rails, located on both sides below the winding component, and both sides of the door curtain extend into the guide rails;

[0008] Sealing edge strips are provided on both sides of the door curtain to seal the gap between the door curtain and the guide rails, and the sealing edge strips are arranged to be able to slide along the length direction of the guide rails;

[0009] Wherein, one end of the sealing edge strip is provided with a limiting part, and the guide rail is provided with a stop part corresponding to the limiting part, so that the cross section of the sealing edge strip and the guide rail is a T-shaped structure;

[0010] Along the width direction of the door curtain, a sealing strip is provided between the limiting part and the stop part, and a buffer cavity for buffering is arranged inside the sealing strip. When the door curtain deforms under the wind pressure, the limiting part can slide along the width direction of the door curtain to compress the buffer cavity to buffer the wind pressure.

[0011] Preferably, the cross section of the sealing strip is arranged in a structure like the Chinese character 'Ri'.

[0012] Preferably, the material of the sealing strip is ethylene propylene rubber.

[0013] Preferably, the sealing edge strip is provided with a relief groove corresponding to the sealing strip and providing a deformation space for the sealing strip.

[0014] Preferably, the buffer cavity is filled with a flame-retardant filler having fluidity.

[0015] Preferably, the flame-retardant filler includes expanded graphite.

[0016] Preferably, both ends of the sealing strip are provided with sealing caps for sealing the buffer cavity.

[0017] Preferably, a sealing adhesive layer is provided between the end face of the sealing cap and the sealing strip for fixing the sealing cap on the end face of the sealing strip and sealing the gap between the sealing cap and the end face of the sealing strip.

[0018] Preferably, a plurality of connecting components for connecting with the wall are fixed on the guide rail along the length direction.

[0019] Preferably, the connecting component is arranged in an L-shaped plate structure.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] By providing a limiting portion at one end of the sealing edge strip and a stop portion corresponding to the limiting portion on the guide rail, the cross-sections of the sealing edge strip and the guide rail are in a T-shaped structure. Along the width direction of the curtain, a sealing strip is arranged between the limiting portion and the stop portion. A buffer cavity for buffering is arranged inside the sealing strip. When the curtain is affected by wind pressure, the curtain deforms. At this time, the limiting portion can slide along the width direction of the curtain to compress the buffer cavity, buffer the wind pressure that deforms the curtain, and reduce the deformation amplitude of the curtain, thereby improving the wind pressure resistance performance of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings, wherein:

[0023] Figure 1 is a schematic structural view of the wind pressure resistance structure of the garage door and the track shown in the present utility model;

[0024] Figure 2 is a schematic structural view of the connection between the guide rail and the curtain in the wind pressure resistance structure of the garage door and the track shown in the present utility model;

[0025] Figure 3 It is a schematic cross - sectional view showing the connection between the guide rail and the curtain in the wind - resistant structure of the garage door and the track shown in the present utility model.

[0026] In the figure, 1 is the winding component; 11 is the curtain; 12 is the bottom beam; 13 is the sealing strip; 131 is the limiting part; 132 is the avoiding groove; 2 is the guide rail; 21 is the stopping part; 3 is the sealing strip; 301 is the buffer cavity; 4 is the sealing cover; 41 is the sealing adhesive layer; 5 is the connecting component. Specific embodiments

[0027] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows.

[0028] Combined with Figures 1 - 3 As shown, the present utility model provides a wind - resistant structure for a garage door and a track, including a winding component 1, a curtain 11 and a guide rail 2. Inside the winding component 1, there are a winding shaft and a driving component. One end of the curtain 11 is connected to the winding shaft inside the winding component 1, and the other end is provided with a bottom beam 12 for maintaining the width of the curtain 11. The driving component drives the winding shaft to rotate, and the curtain 11 is wound and unwound through the winding shaft. The guide rails 2 are located on both sides below the winding component 1, and both sides of the curtain 11 extend into the inside of the guide rails 2. During the winding and unwinding process of the curtain 11, it slides along the guide rails 2.

[0029] In an alternative embodiment, the driving component is one of a motor or a torsion spring. The motor can drive the curtain 11 to lift and lower automatically, which is relatively labor - saving, while the torsion spring can provide a force for the winding shaft to rotate in one direction, and the production cost is relatively low. Preferably, the torsion spring provides the force for the winding shaft to wind the curtain 11 when rotating.

[0030] Combined with Figure 2 and Figure 3 As shown, sealing strips 13 capable of sealing the gap between the curtain 11 and the guide rails 2 are provided on both sides of the curtain 11, so that there is no air leakage between the curtain 11 and the guide rails 2, avoiding cold air from entering the garage interior. At the same time, the sealed structure can play a role in isolating smoke in case of a fire.

[0031] In a specific embodiment, the sealing strip 13 is arranged to be able to slide along the length direction of the guide rail 2. When the curtain 11 slides along the guide rail 2, the sealing strip 13 can slide synchronously along the guide rail 2 and be wound together with the curtain 11.

[0032] In a preferred embodiment, the curtain 11 is made of fire - resistant cloth to make it have good flame - retardant and fire - proof performance.

[0033] The curtain of the inorganic cloth fireproof rolling shutter garage door is made of fireproof cloth. Although it has the characteristics of light weight and fireproof, its texture is soft and its strength is insufficient. The curtain is prone to deformation. When the wind is strong, the curtain is sunken and deformed, and the curtain is repeatedly subjected to a large wind pressure, resulting in fatigue and easy to crack, causing the garage door to lose its protective function.

[0034] Combined with Figure 2 and Figure 3 As shown, one end of the sealing strip 13 is provided with a limiting part 131, and the guide rail 2 is provided with a stop part 21 corresponding to the limiting part 131, so that the cross sections of the sealing strip 13 and the guide rail 2 are in a T-shaped structure. The limiting part 131 and the stop part 21 cooperate to play a limiting role and prevent the curtain 11 from deforming and disengaging from the guide rail 2 in strong wind weather.

[0035] In a specific embodiment, a sealing strip 3 is provided between the limiting part 131 and the stop part 21 along the width direction of the curtain 11. A buffer cavity 301 for buffering is provided inside the sealing strip 3. When the curtain 11 is affected by wind pressure, the curtain 11 deforms. At this time, the limiting part 131 can slide along the width direction of the curtain 11 to compress the buffer cavity 301, buffer the wind pressure that deforms the curtain 11, and reduce the deformation amplitude of the curtain 11, improving the wind pressure resistance of the curtain 11;

[0036] At the same time, when the curtain 11 is deformed by wind pressure, the limiting part 131 fits more closely with the sealing strip 3, playing a role in preventing wind and avoiding cold air from entering the garage interior.

[0037] Furthermore, the cross section of the sealing strip 3 is set in a Japanese character structure, so that the sealing strip 3 has better support elasticity and can still recover elastically after being compressed multiple times.

[0038] In a preferred embodiment, the material of the sealing strip 3 is ethylene propylene rubber, which has good wear resistance. When the curtain 11 is retracted and extended, the limiting part 131 slides and winds up synchronously with the sealing strip 13. During the sliding process of the limiting part 131, it rubs against the sealing strip 3, and the ethylene propylene rubber with better wear resistance can improve the service life of the sealing strip 3.

[0039] Combined with Figure 3 As shown, an avoidance groove 132 corresponding to the sealing strip 3 and providing a deformation space for the sealing strip 3 is provided on the sealing strip 13. When the sealing strip 3 is squeezed, it can deform towards the avoidance groove 132 to prevent the sealing strip 3 from being squeezed and broken.

[0040] Combined with Figure 2 and Figure 3As shown, the buffer cavity 301 is filled with a fluid fire-retardant filler. Preferably, the fire-retardant filler is expanded graphite. When the sealing strip 3 is burned by an open flame, the expanded graphite can expand when heated, block the internal gap of the guide rail 2, and combined with the curtain 11 made of fireproof cloth, it can isolate the flame spread channel. Moreover, the expanded graphite is in the form of fine particles and has fluidity, which will not affect the deformation of the sealing strip 3.

[0041] Furthermore, sealing caps 4 for sealing the buffer cavity 301 are provided at both ends of the sealing strip 3. By sealing the buffer cavity 301 with the sealing caps 4, the buffer cavity 301 is in a closed state, and when being squeezed, it can provide better elastic supporting force. At the same time, the expanded graphite inside the buffer cavity 301 is blocked to avoid leakage.

[0042] In a preferred embodiment, a sealing glue layer 41 is provided between the end face of the sealing cap 4 and the sealing strip 3, which is used to fix the sealing cap 4 on the end face of the sealing strip 3 and seal the gap between the end faces of the sealing cap 4 and the sealing strip 3, so as to improve the sealing effect of the sealing cap 4.

[0043] Combined with Figure 2 As shown, a plurality of connecting components 5 for connecting with the wall are fixed on the guide rail 2 along the length direction. Preferably, the connecting component 5 is arranged in an L-shaped plate structure and is connected to the guide rail 2 by welding. Holes for bolt installation are provided on the connecting component 5, which is convenient for fixing the guide rail 2 on the wall through bolts.

[0044] Combined with the above embodiments, by providing a limiting part 131 at one end of the sealing edge strip 13 and a stop part 21 corresponding to the limiting part 131 on the guide rail 2, the cross-sections of the sealing edge strip 13 and the guide rail 2 are in a T-shaped structure. And along the width direction of the curtain 11, a sealing strip 3 is arranged between the limiting part 131 and the stop part 21. A buffer cavity 301 for buffering is arranged inside the sealing strip 3. When the curtain 11 is acted by wind load, the curtain 11 deforms under a large wind pressure. At this time, the limiting part 131 can slide along the width direction of the curtain 11 to compress the buffer cavity 301, buffer the wind pressure that deforms the curtain 11, and reduce the deformation amplitude of the curtain 11, thereby improving the wind resistance performance of the curtain 11.

[0045] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model belongs can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. A wind pressure resistant structure of a garage door and a track, characterized in that: include: A winding component (1) is provided with a winding shaft and a driving component; A door curtain (11), one end of which is connected to a reel inside the reel component (1), and the other end of which is provided with a bottom beam (12) for maintaining the width of the door curtain (11); Guide rails (2) are located on both sides below the rolling component (1), and both sides of the door curtain (11) extend to the inside of the guide rails (2); Both sides of the door curtain (11) are provided with sealing edge strips (13) capable of sealing the gap between the door curtain (11) and the guide rail (2), and the sealing edge strips (13) are configured to be able to slide along the length direction of the guide rail (2); One end of the sealing edge strip (13) is provided with a limiting portion (131), and the guide rail (2) is provided with a stopper portion (21) corresponding to the limiting portion (131), so that the cross-sections of the sealing edge strip (13) and the guide rail (2) are in a T-shaped structure; Along the width direction of the door curtain (11), a sealing strip (3) is provided between the limiting portion (131) and the stop portion (21), and a buffer cavity (301) for buffering is provided inside the sealing strip (3); when the door curtain (11) is deformed by wind pressure, the limiting portion (131) can slide along the width direction of the door curtain (11) to compress the buffer cavity (301) and buffer the wind pressure.

2. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: The cross section of the sealing strip (3) is arranged in a Japanese-shaped structure.

3. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: The material of the sealing strip (3) is ethylene propylene rubber.

4. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: The sealing edge strip (13) is provided with a relief groove (132) corresponding to the sealing strip (3) and providing a deformation space for the sealing strip (3).

5. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: The buffer cavity (301) is filled with a fire-retardant filler having fluidity.

6. The wind pressure resistant structure of the garage door and track according to claim 5, characterized in that: The flame retardant filler includes expanded graphite.

7. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: Both ends of the sealing strip (3) are provided with sealing covers (4) for sealing the buffer cavity (301).

8. The wind pressure resistant structure of the garage door and track according to claim 7, characterized in that: A sealing rubber layer (41) is provided between the sealing cover (4) and the end surface of the sealing strip (3), and is used to fix the sealing cover (4) to the end surface of the sealing strip (3) and seal the gap between the sealing cover (4) and the end surface of the sealing strip (3).

9. The wind pressure resistant structure of the garage door and track according to claim 1, characterized in that: The guide rail (2) is fixed with a plurality of connection components (5) along the length direction for connection with the wall.

10. The wind pressure resistant structure of the garage door and track according to claim 9, characterized in that: The connecting component (5) is configured as an L-shaped plate structure.

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