Wind pressure dispersing device with rib-free structure for wind-resistant fast rolling door

Abstract

The utility model discloses an unreinforced structure wind pressure dispersing device for a wind-resistant fast rolling door. The unreinforced structure wind pressure dispersing device comprises two symmetrically arranged door frames, the PVC door curtain is arranged on the inner sides of the two door frames, and the two ends of the PVC door curtain extend into the inner areas of the door frames; an exhaust hole is formed in the outer wall of the door frame, a dispersing assembly is further arranged in the door frame, the dispersing assembly comprises a connecting piece and a dispersing piece, the connecting piece movably penetrates through the end of the PVC door curtain, and the two ends of the connecting piece are attached to the inner wall of the door frame in a rolling mode; the flow guide part can convert concentrated wind pressure into weak airflow flowing along the two sides of the PVC door curtain, meanwhile, the dispersing assembly is additionally arranged in the door frame, wind force acting on the door body can be effectively guided and dispersed to external spaces on the two sides of the door curtain, therefore, wind force is exhausted and dispersed, the wind pressure directly borne by the door body is remarkably reduced, and the service life of the door body is prolonged. And the phenomenon of structural stress concentration caused by uneven wind pressure is reduced, and the overall wind resistance of the roller shutter door is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of roller shutter door technology, specifically relating to a wind-resistant fast roller shutter door with a rib-less structure wind pressure dispersion device. Background Technology

[0002] With the rapid development of industry, the demand for industrial doors is increasing dramatically, especially for high-speed rolling doors. In the design of high-speed rolling doors, wind pressure dispersion devices are a crucial consideration, particularly in environments requiring resistance to strong convective wind pressure. The main function of this device is to disperse and reduce the impact of wind pressure on the door body, ensuring stable operation and safety. A ribless structure likely refers to a special design of the door curtain, where traditional metal wind-resistant ribs or other reinforcing structures are not used; instead, wind pressure resistance and stability are achieved through other means. This design can help reduce the weight of the door, improve operating efficiency, and lower manufacturing costs.

[0003] Current ribless high-speed roller shutters primarily rely on wind-resistant rollers installed between the door frame and the lightweight curtain for their wind resistance. This design does indeed provide effective assistance in resisting external wind forces to a certain extent, ensuring stability and safety during daily use. However, despite the undeniable role of the wind-resistant rollers, the overall structure of this type of roller shutter still falls short when dealing with significantly increased wind pressure.

[0004] The root cause lies in its lack of an efficient wind pressure dispersion mechanism. Under strong winds, the limitations of the unreinforced structure become glaringly apparent, failing to effectively disperse concentrated wind pressure over a wider area, thus significantly reducing its wind resistance. This can not only affect the normal operation of the roller shutter door, but in severe cases, even cause structural damage, posing safety hazards to the production and storage environment. Utility Model Content

[0005] The purpose of this utility model is to provide a wind-resistant, rib-less structure wind pressure dispersion device for a high-speed rolling door, so as to solve the problem of insufficient wind resistance of existing high-speed rolling doors mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind-resistant, high-speed rolling door with a ribless structure for dispersing wind pressure, comprising two symmetrically arranged door frames; a PVC door curtain placed inside the two door frames, with both ends of the PVC door curtain extending into the internal area of ​​the door frames; exhaust holes are provided on the outer wall of the door frames, and a dispersing component is also provided inside the door frames, the dispersing component comprising: a connector that movably passes through the end of the PVC door curtain, and both ends of the connector rolling against the inner wall of the door frame; through the connector, the door frame and the PVC door curtain can be connected, and the connector can also move up and down inside the door frame following the PVC door curtain; the front surface of the PVC door curtain... The curtain rises from both sides towards the central area, forming a guide section. The exhaust hole is located in the area between the guide section and the inner wall of the door frame. Therefore, the airflow passing through the front surface of the PVC curtain will be dispersed by the guide section and flow towards both sides of the PVC curtain, enter the interior of the door frame, and finally be discharged from the exhaust hole, thus achieving the dispersion and discharge of airflow. The adjusting component has one end connected to the door frame and the other end fitted onto the connector. The position of the connector can be adjusted by adjusting the adjusting component. When the position of the connector inside the door frame changes, the connector will synchronously drive the position of the PVC curtain to change, thereby achieving tensioning of PVC curtains of different specifications and preventing the PVC curtain from being in a slack state.

[0007] Preferably, the two ends of the PVC door curtain inside the door frame are planar; the connector passes through the planar area of ​​the guide portion.

[0008] Preferably, the connector includes a connecting shaft passing through the PVC door curtain and windproof wheels fixed at both ends of the connecting shaft. The windproof wheels roll against the inner wall of the door frame, so that the windproof wheels can rise and fall with the PVC door curtain. A spring is also sleeved on the connecting shaft. The two ends of the spring abut against the back surface of the PVC door curtain and the windproof wheels, respectively. When the front surface of the PVC door curtain is subjected to wind pressure, the wind pressure will cause the PVC door curtain to squeeze the spring. At this time, more wind force enters the inner wall of the door frame and is discharged from the exhaust hole, realizing the dispersion of wind. At the same time, the position of the PVC door curtain can reduce the intensity of the wind pressure. During normal use in the later stage, the spring returns to its original position.

[0009] Preferably, the adjusting component includes an irregularly shaped limiting rod, which is generally "Z" shaped; one end of the irregularly shaped limiting rod is fixedly provided with a collar, which is movably sleeved on the connecting shaft, so as to ensure that the rotation of the connecting shaft is not affected, and the position of the connecting shaft can be adjusted by adjusting the position of the irregularly shaped limiting rod; the other end of the irregularly shaped limiting rod extends through to the outside of the door frame.

[0010] Preferably, the other end of the irregularly shaped limiting rod has a threaded portion, and a limiting nut is fitted onto the threaded portion. A strip-shaped hole is provided through the outer side of the door frame for the other end of the irregularly shaped limiting rod to pass through and move up and down. Limiting plates are also fixed on both sides of the opening of the strip-shaped hole. The limiting plates are locked with the limiting nut. When it is necessary to adjust the position of the irregularly shaped limiting rod inside the door frame, the limiting nut is rotated, which drives the threaded portion to adjust the position of the irregularly shaped limiting rod. After the position of the irregularly shaped limiting rod is adjusted, the position of the connecting shaft will be adjusted simultaneously, thereby achieving the purpose of tensioning the PVC door curtain.

[0011] Preferably, the limiting plate is L-shaped, and the end face of the limiting plate is in contact with the end face of the limiting nut.

[0012] Preferably, a door header is also installed at the top of the door frame, and the PVC door curtain is rolled up inside the door header.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Through the design of this utility model, the airflow guide can transform the concentrated wind pressure into a weak airflow flowing along both sides of the PVC door curtain. At the same time, a dispersion component is added inside the door frame, which can effectively guide and disperse the wind force acting on the door body to the external space on both sides of the door curtain, thereby realizing the exhaust and dispersion of wind force. This process not only significantly reduces the wind pressure directly borne by the door body, but also reduces the structural stress concentration caused by uneven wind pressure, thereby greatly improving the overall wind resistance of the roller shutter door. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view showing the connection between the door frame and the PVC door curtain of this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the irregularly shaped limiting rod and the limiting plate of this utility model;

[0018] Figure 4 This utility model Figure 3 An enlarged schematic diagram of region A in the middle.

[0019] In the picture:

[0020] 100. Door frame; 101. Vent hole; 102. Connecting shaft; 103. Windproof wheel; 104. Spring; 105. Irregularly shaped limiting rod; 106. Collar; 107. Limiting plate; 108. Threaded part; 109. Limiting nut;

[0021] 200. PVC door curtain; 201. Airflow guide;

[0022] 300. Storefront sign. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a wind-resistant, high-speed rolling door with a ribless structure wind pressure dispersion device, comprising...

[0025] Two symmetrically arranged door frames 100;

[0026] A PVC door curtain 200 is placed inside the two door frames 100, and both ends of the PVC door curtain 200 extend into the internal area of ​​the door frame 100.

[0027] The outer wall of the door frame 100 is provided with an exhaust hole 101, and a dispersion component is also provided inside the door frame 100, the dispersion component including:

[0028] The connector extends through the end of the PVC curtain 200 and its two ends roll against the inner wall of the door frame 100. The connector allows the door frame 100 to be connected to the PVC curtain 200 and also allows the curtain to move up and down within the door frame 100. The front surface of the PVC curtain 200 bulges from both sides towards the center and forms a guide section 201. The exhaust hole 101 is located between the guide section 201 and the inner wall of the door frame 100. Therefore, the airflow passing through the front surface of the PVC curtain 200 is dispersed by the guide section 201 and flows towards both sides of the PVC curtain 200, enters the door frame 100, and is finally discharged from the exhaust hole 101, thus achieving dispersed airflow discharge.

[0029] The adjusting component has one end connected to the door frame 100 and the other end fitted onto the connector. The position of the connector can be adjusted by adjusting the adjusting component. When the position of the connector inside the door frame 100 changes, the connector will synchronously drive the position of the PVC curtain 200 to change, thereby achieving tensioning of PVC curtains 200 of different specifications and preventing the PVC curtain 200 from being in a slack state.

[0030] In this embodiment, preferably, the two ends of the PVC curtain 200 inside the door frame 100 are planar; the connector passes through the planar area of ​​the guide portion 201.

[0031] In this embodiment, preferably, the connector includes a connecting shaft 102 that passes through the PVC curtain 200, and windproof wheels 103 fixed at both ends of the connecting shaft 102. The windproof wheels 103 roll against the inner wall of the door frame 100, so that the windproof wheels 103 can rise and fall with the PVC curtain 200. A spring 104 is also sleeved on the connecting shaft 102. The two ends of the spring 104 abut against the rear surface of the PVC curtain 200 and the windproof wheels 103, respectively. When the front surface of the PVC curtain 200 is subjected to wind pressure, the wind pressure will cause the PVC curtain 200 to squeeze the spring 104. At this time, more wind enters the inner wall of the door frame 100 and is discharged from the exhaust hole 101 to achieve dispersed discharge. At the same time, the PVC curtain 200 can reduce the intensity of the wind pressure it receives by changing its position. In normal use later, the spring 104 returns to its original position.

[0032] In this embodiment, preferably, the adjusting component includes an irregularly shaped limiting rod 105, which is generally Z-shaped. One end of the irregularly shaped limiting rod 105 is fixedly provided with a collar 106, which is movably sleeved on the connecting shaft 102. This ensures that the rotation of the connecting shaft 102 is not affected, and the position of the connecting shaft 102 can be adjusted by adjusting the position of the irregularly shaped limiting rod 105. The other end of the irregularly shaped limiting rod 105 extends through to the outside of the door frame 100.

[0033] In this embodiment, preferably, the other end of the irregularly shaped limiting rod 105 has a threaded portion 108, and a limiting nut 109 is fitted on the threaded portion 108. A strip-shaped hole is opened through the outer side of the door frame 100 for the other end of the irregularly shaped limiting rod 105 to pass through and move up and down. A limiting plate 107 is also fixed on both sides of the opening of the strip-shaped hole. The limiting plate 107 is locked with the limiting nut 109. When it is necessary to adjust the position of the irregularly shaped limiting rod 105 inside the door frame 100, the limiting nut 109 is rotated, and the threaded portion 108 is driven by the limiting nut 109 to adjust the position of the irregularly shaped limiting rod 105. After the position of the irregularly shaped limiting rod 105 is adjusted, the position of the connecting shaft 102 will be adjusted simultaneously, and the PVC door curtain 200 will be tensioned.

[0034] In this embodiment, preferably, the limiting plate 107 is L-shaped, and the end face of the limiting plate 107 and the limiting nut 109 are in contact. In order to ensure the normal rotation of the limiting nut 109, the distance between the two limiting plates 107 should exceed 3 cm.

[0035] In this embodiment, preferably, a door header 300 is also installed on the top of the door frame 100, and the PVC door curtain 200 is rolled up inside the door header 300.

[0036] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement structure, comprising two symmetrically arranged door frames (100); a PVC door curtain (200) arranged inside the two door frames (100), and the two ends of the PVC door curtain (200) extending into the interior region of the door frames (100); characterized in that: an air outlet hole (101) is arranged on the outer wall of the door frame (100), and a dispersion assembly is further arranged inside the door frame (100), which comprises a connecting piece, which is movably penetrated by the end of the PVC door curtain (200), and the two ends of the connecting piece are in rolling contact with the inner wall of the door frame (100); the front surface of the PVC door curtain (200) is raised from both sides to the middle region, and a flow guide part (201) is formed; the air outlet hole (101) is located in the region between the flow guide part (201) and the inner wall of the door frame (100); an adjusting piece, one end of which is connected with the door frame (100), and the other end is sleeved on the connecting piece.

2. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement according to claim 1, characterized in that: The two end regions of the PVC door curtain (200) inside the door frame (100) are planar; the connecting piece penetrates the planar region of the flow guide part (201).

3. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement according to claim 2, characterized in that: The connecting piece comprises a connecting shaft (102) penetrating the PVC door curtain (200), and a windproof wheel (103) fixed at both ends of the connecting shaft (102), which is in rolling contact with the inner wall of the door frame (100); a spring (104) is further sleeved on the connecting shaft (102), and the two ends of the spring (104) are respectively in contact with the rear surface of the PVC door curtain (200) and the windproof wheel (103).

4. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement according to claim 3, characterized in that: The adjusting piece comprises a special-shaped limiting rod (105), which is in the shape of "Z" as a whole; one end of the special-shaped limiting rod (105) is fixedly provided with a sleeve ring (106) movably sleeved on the connecting shaft (102); the other end of the special-shaped limiting rod (105) penetrates to the outside of the door frame (100).

5. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement according to claim 4, characterized in that: The other end of the special-shaped limiting rod (105) is formed with a threaded part (108), and a limiting nut (109) is sleeved on the threaded part (108); a strip-shaped hole is formed on the outside of the door frame (100) for the other end of the special-shaped limiting rod (105) to penetrate and move up and down, and limiting plates (107) are further fixed on both sides of the opening of the strip-shaped hole; the limiting plates (107) are in limiting and clamping connection with the limiting nut (109).

6. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement structure according to claim 5, characterized in that: The limiting plates (107) are in the shape of "L", and the end surface of the limiting plates (107) is in close contact with the limiting nut (109).

7. The wind pressure dispersion device for a wind-resistant type quick roll-up door without reinforcement according to claim 1, characterized in that: A door head (300) is further arranged on the top of the door frame (100), and the PVC door curtain (200) is wound inside the door head (300).

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