Roller shutter door with door curtain bottom beam having protection function

Abstract

The utility model discloses a roller shutter door with a protective door curtain bottom beam, which comprises a bracket, a rolling mechanism is arranged at the top end of the bracket, a door curtain main body is arranged outside the rolling mechanism, two sides of the door curtain main body are connected with limiting frames in a sliding manner, a material layer is arranged inside the door curtain main body, and the limiting frames are arranged on the material layer. The bottom end of the door curtain body is fixedly connected with a balance weight bottom beam, and one side of the balance weight bottom beam is fixedly connected with a rubber pad. The protection mechanism is arranged at the bottom end of the balance weight bottom beam, when the balance weight bottom beam makes contact with the ground, the pressing strip on the lower portion can be pressed, at the moment, the pressing strip can push the push plate to move upwards through the connecting rod, and meanwhile the push plate can extrude the safety air bag on the upper portion; the force generated by extrusion of the safety air bag can push the other side of the safety air bag to extend out of the bottom end of the balance weight bottom beam, so that the bottom end of the balance weight bottom beam is stably blocked and sealed, and the overall functionality and the use safety of the roller shutter door are improved.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter technology, specifically a roller shutter door with a protective function on the bottom beam of the door curtain. Background Technology

[0002] Roller shutters are a common type of door installation, widely used in shops, garages, warehouses, and other locations. Made of metal or other durable materials, they utilize bearings and a roller system to allow the door to slide up and down and roll up. Roller shutters offer features such as security, fire resistance, and sound insulation. They are easy to operate, occupy little space, and effectively improve security and convenience.

[0003] A roller shutter door disclosed in Chinese Patent Publication No. CN104234605B has a distance between two symmetrical arc-shaped protrusions on the inner sidewall of the sliding track equal to the thickness of the roller shutter body. By making the distance between the two symmetrical arc-shaped protrusions equal to the thickness of the roller shutter body, the two are made to slide smoothly together, so that they will not be pressed together due to excessive tightness, nor will the roller shutter body be damaged due to excessive gap. However, the overall functionality of the roller shutter door is low, and there are no protective measures. When the roller shutter door is closed, external dust and impurities may enter the house through the bottom beam of the roller shutter door, affecting the overall stability of the roller shutter door. Utility Model Content

[0004] The purpose of this utility model is to provide a roller shutter door with a protective bottom beam to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller shutter door with a protective bottom beam, comprising a bracket, a winding mechanism at the top of the bracket, a curtain body outside the winding mechanism, limit frames slidably connected to both sides of the curtain body, a material layer inside the curtain body, a counterweight bottom beam fixedly connected to the bottom of the curtain body, a rubber pad fixedly connected to one side of the counterweight bottom beam, and a protective mechanism inside the bottom of the counterweight bottom beam.

[0006] Preferably, the winding mechanism includes a servo motor mounted on the top of the bracket, a rotating shaft mounted on the output shaft end of the servo motor, and a winding roller that is externally and fixedly connected to the curtain body is fixedly connected to one side of the rotating shaft.

[0007] Preferably, the material layer includes a heat insulation layer disposed inside the curtain body, a fireproof layer disposed outside the heat insulation layer, a reinforcing layer disposed outside the fireproof layer, and an outer coating layer disposed outside the reinforcing layer.

[0008] Preferably, the heat insulation layer is made of a mixture of polyurethane foam and aluminum foil, the fireproof layer is made of fireproof rock wool, the reinforcing layer is made of aluminum alloy plate, and the outer coating is made of PVC coating.

[0009] Preferably, the protective mechanism includes a pressing strip movably connected to one side of the bottom end of the counterweight base beam, a connecting rod being fixedly connected at equal intervals to the top of the pressing strip, a push plate being fixedly connected to the top of the connecting rod and sliding within the counterweight base beam, and a spring being fixedly connected at equal intervals to the bottom end of the push plate.

[0010] Preferably, a safety airbag is fixedly connected to the bottom end of the counterweight beam.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This type of roller shutter door with a protective bottom beam has a protective mechanism at the bottom of the counterweight bottom beam. When the counterweight bottom beam is in contact with the ground, the pressing strip below can be pressed. At this time, the pressing strip can push the push plate upward through the connecting rod. At the same time, the push plate can squeeze the safety airbag above. The force generated by the compression of the safety airbag can push the other side to extend from the bottom of the counterweight bottom beam, thereby stably performing the blocking and sealing work at the bottom of the counterweight bottom beam, improving the overall functionality and safety of the roller shutter door.

[0013] 2. This type of roller shutter door with a protective bottom beam incorporates a heat insulation layer, a fireproof layer, a reinforcing layer, and an outer coating within the material layers. The heat insulation and fireproof layers enhance the heat insulation and fireproofing effects of the roller shutter door. The reinforcing layer, made of lightweight and high-strength aluminum alloy, improves the wind resistance of the roller shutter door. The outer coating not only provides corrosion protection but also increases the weather resistance of the roller shutter door, thereby improving its overall performance and stability under various conditions. Attached Figure Description

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the curtain body of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a cross-sectional structural diagram of the counterweight bottom beam of this utility model.

[0018] In the diagram: 1. Bracket; 101. Servo motor; 102. Rotating shaft; 2. Winding mechanism; 3. Winding roller; 4. Curtain body; 5. Limiting frame; 6. Material layer; 601. Heat insulation layer; 602. Fireproof layer; 603. Reinforcing layer; 604. Outer coating; 7. Counterweight base beam; 701. Rubber pad; 8. Protective mechanism; 801. Pressing strip; 802. Connecting rod; 803. Push plate; 804. Spring; 9. Safety airbag. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides two technical solutions:

[0021] Example 1: A roller shutter door with a protective bottom beam includes a bracket 1, a winding mechanism 2 at the top of the bracket 1, a curtain body 4 outside the winding mechanism 2, limit frames 5 slidably connected to both sides of the curtain body 4, a material layer 6 inside the curtain body 4, a counterweight bottom beam 7 fixedly connected to the bottom of the curtain body 4, a rubber pad 701 fixedly connected to one side of the counterweight bottom beam 7, and a protective mechanism 8 inside the bottom of the counterweight bottom beam 7. The rubber pad 701 can provide auxiliary buffer protection for the counterweight bottom beam 7.

[0022] The winding mechanism 2 includes a servo motor 101 mounted on the top of the bracket 1. A rotating shaft 102 is mounted on the output shaft end of the servo motor 101. A winding roller 3, which is externally and fixedly connected to the curtain body 4, is fixedly connected to one side of the rotating shaft 102. When the servo motor 101 is started, it can drive the rotating shaft 102 to rotate. At this time, the rotating shaft 102 drives the winding roller 3 to rotate, so that the winding roller 3 can perform the winding and unwinding work of the curtain body 4.

[0023] The protective mechanism 8 includes a pressing strip 801 movably connected to one side of the bottom end of the counterweight base beam 7. A connecting rod 802 is fixedly connected at equal intervals to the top of the pressing strip 801. A push plate 803 that slides inside the counterweight base beam 7 is fixedly connected to the top of the connecting rod 802. A spring 804 is fixedly connected at equal intervals to the bottom end of the push plate 803. An airbag 9 is fixedly connected inside the bottom end of the counterweight base beam 7. When the pressing strip 801 at the bottom end of the counterweight base beam 7 comes into contact with the ground, the push plate 803 can be pushed by the connecting rod 802, and the spring 804 can be stretched. When the counterweight base beam 7 drives the pressing strip 801 to leave the ground, the reaction force of the stretched spring 804 can drive the connecting rod 802 and the pressing strip 801 to return to their original positions through the push plate 803.

[0024] Example 2 differs from Example 1 mainly in that:

[0025] A roller shutter door with a protective bottom beam includes a heat insulation layer 601 inside the curtain body 4 in the material layer 6, a fireproof layer 602 outside the heat insulation layer 601, a reinforcing layer 603 outside the fireproof layer 602, and an outer coating 604 outside the reinforcing layer 603.

[0026] The insulation layer 601 is made of a mixture of polyurethane foam and aluminum foil. The polyurethane foam has excellent heat insulation effect, and when combined with the aluminum foil layer, it can effectively reflect heat, further improving the heat insulation effect.

[0027] Fireproof layer 602 is made of fireproof rock wool, which is resistant to high temperature and has excellent fire resistance, providing effective fire isolation;

[0028] The reinforcing layer 603 is made of aluminum alloy sheet, which is lightweight and high-strength, suitable for improving the wind resistance of roller shutters without adding too much weight.

[0029] The outer coating 604 uses a PVC coating, which not only provides anti-corrosion protection, but also increases the weather resistance of the roller shutter door, preventing damage from prolonged exposure to sunlight or wind and rain. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] In use, the following embodiments of this application are described: the servo motor 101 can start the rotating shaft 102 to rotate. At this time, the rotating shaft 102 can drive the curtain body 4 to be rolled up and down through the winding roller 3. When the counterweight bottom beam 7 at the bottom of the curtain body 4 contacts the ground, the pressing strip 801 at the bottom of the counterweight bottom beam 7 touches the ground and can push the push plate 803 through the connecting rod 802. At this time, the push plate 803 squeezes the safety airbag 9 so that the bottom end of the safety airbag 9 can extend from the bottom end of the counterweight bottom beam 7 and stably stick to the ground, thereby improving the sealing and protection of the roller shutter door.

[0031] 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 in the specification are merely preferred examples and are not intended to limit the 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 the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A roller shutter door with a protective function on the bottom beam of the door curtain, comprising a bracket (1), characterized in that: The top of the bracket (1) is provided with a winding mechanism (2), and the outside of the winding mechanism (2) is provided with a curtain body (4). The two sides of the curtain body (4) are slidably connected with limit frames (5). The inside of the curtain body (4) is provided with a material layer (6). The bottom end of the curtain body (4) is fixedly connected with a counterweight bottom beam (7). One side of the counterweight bottom beam (7) is fixedly connected with a rubber pad (701). The bottom end of the counterweight bottom beam (7) is provided with a protective mechanism (8).

2. A roller shutter door with a protective function at the bottom beam of the door curtain according to claim 1, characterized in that: The winding mechanism (2) includes a servo motor (101) mounted on the top of the bracket (1), and a rotating shaft (102) is mounted on the output shaft end of the servo motor (101). A winding roller (3) that is fixedly connected to the curtain body (4) is fixedly connected to one side of the rotating shaft (102).

3. A roller shutter door with a protective function at the bottom beam of the door curtain according to claim 1, characterized in that: The material layer (6) includes a heat insulation layer (601) inside the curtain body (4), a fireproof layer (602) outside the heat insulation layer (601), a reinforcing layer (603) outside the fireproof layer (602), and an outer coating layer (604) outside the reinforcing layer (603).

4. A roller shutter door with a protective function at the bottom beam of the door curtain according to claim 3, characterized in that: The heat insulation layer (601) is made of a mixture of polyurethane foam and aluminum foil, the fireproof layer (602) is made of fireproof rock wool, the reinforcing layer (603) is made of aluminum alloy plate, and the outer coating layer (604) is made of PVC coating.

5. A roller shutter door with a protective function at the bottom beam of the door curtain according to claim 1, characterized in that: The protective mechanism (8) includes a pressing strip (801) movably connected to one side of the bottom end of the counterweight bottom beam (7). The top end of the pressing strip (801) is uniformly and evenly fixedly connected to a connecting rod (802). The top end of the connecting rod (802) is fixedly connected to a push plate (803) that slides within the counterweight bottom beam (7). The bottom end of the push plate (803) is uniformly and evenly fixedly connected to a spring (804).

6. A roller shutter door with a protective function at the bottom beam of the door curtain according to claim 1, characterized in that: An airbag (9) is fixedly connected to the bottom end of the counterweight beam (7).

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