Anti-swing device for fireproof roller shutter and fireproof roller shutter

Abstract

The utility model belongs to the field of fireproof roller shutters, and provides an anti-swing device for a fireproof roller shutter and the fireproof roller shutter to solve the problem that noise is large when roller shutter leaves of an existing fireproof roller shutter are rolled up and unrolled, and the anti-swing device for the fireproof roller shutter comprises a supporting frame and a plurality of abutting assemblies. The abutting assembly comprises an abutting frame and an abutting wheel rotationally connected to the abutting frame, the abutting frame is fixed to the supporting frame, the rotating axis of the abutting wheel is horizontal, and the projection of the end, away from the abutting frame, of the abutting wheel in the horizontal plane is located on the outer side of the projection of the supporting frame in the plane. The fireproof roller shutter comprises a top box, a door frame, a door shutter leaf and an anti-swing device for the fireproof roller shutter, the supporting frame is fixedly arranged below the top box, and the abutting wheel abuts against the door shutter leaf of the fireproof roller shutter. The noise generated by collision between the door curtain leaves and the door frame can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of fireproof rolling curtains, in particular to an anti-swing device for fireproof rolling curtains and the fireproof rolling curtain. Background Art

[0002] The fireproof rolling shutter is a rolling shutter door used for fire prevention and fire isolation. Its basic structure is similar to that of a conventional rolling shutter door, such as the rolling shutter door disclosed in the Chinese patent application publication number CN118257487A, which includes a top box and a door curtain leaf. The lower end of the rear side of the top box is symmetrically fixedly connected to the door frame. A slide groove for the door curtain leaf to slide through is provided in the door frame. A rolling shutter component for rolling up the door curtain leaf is provided inside the top box. A through hole for the door curtain leaf to pass through is provided at the bottom of the top box corresponding to the position of the door frame. When this type of rolling shutter door is rolled up and unrolled, the door curtain leaf will swing back and forth in the slide groove, collide with the door frame, and make a loud noise. The wider the rolling shutter, the easier it is for the door curtain leaf to deform in the horizontal direction, the greater the swing amplitude of the door curtain leaf, and the greater the noise. Fireproof rolling shutters are generally set in relatively wide passages in factory buildings, and the overall horizontal span is large, so this phenomenon is particularly obvious. Utility Model Content

[0003] The utility model aims to provide a fireproof rolling shutter anti-swaying device and a fireproof rolling shutter in view of the problem that the existing fireproof rolling shutter makes a lot of noise when rolling up and unrolling the rolling door curtain leaves.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A sway prevention device for a fireproof rolling shutter, characterized in that it comprises a support frame and a plurality of pressure components, wherein the pressure components comprise a pressure frame and a pressure wheel rotatably connected to the pressure frame, the pressure frame is fixed to the support frame, the rotation axis of the pressure wheel is horizontal, and the projection of one end of the pressure wheel away from the pressure frame in a horizontal plane is located outside the projection of the support frame in this plane.

[0006] By adopting the above technical solution, the device can be installed under the top box of the anti-slip roller shutter, and the pressing assembly can be used to press against the door curtain leaf from several points to reduce the deformation of the door curtain leaf in the horizontal direction, thereby reducing the swing amplitude of the door curtain leaf and reducing the noise generated by the collision between the door curtain leaf and the door frame. A rotating pressing wheel is provided so that the door curtain leaf rolls relative to the pressing wheel when it is rolled up and unrolled, so as to reduce the resistance between the pressing wheel and the door curtain leaf, and also help to reduce the noise generated by the contact between the pressing wheel and the door curtain leaf.

[0007] Preferably, the pressure frame includes a seat rod, a wheel rod and a diagonal support rod, wherein both ends of the seat rod are respectively connected to the support frame, one end of the wheel rod is fixedly connected to the seat rod, and the other end of the wheel rod is connected to the pressure wheel, and both ends of the diagonal support rod are respectively fixedly connected to the seat rod and the wheel rod, and a triangle is enclosed by the seat rod, the wheel rod and the diagonal support rod.

[0008] By adopting the above technical solution, a relatively stable triangular frame structure is formed by using the seat rod, the wheel rod and the diagonal support rod.

[0009] Preferably, the pressure frame includes a seat rod, a wheel seat, a connecting seat and a threaded rod, the two ends of the seat rod are respectively connected to the support frame, the connecting seat is fixedly connected to the seat rod, the wheel seat is slidably connected to the connecting seat, the threaded rod is threadedly connected to the connecting seat and is rotatably connected to the wheel seat, the geometric axis and the rotation axis of the threaded rod coincide and are parallel to the sliding direction of the wheel seat, and the wheel seat can slide closer to or away from the door curtain leaf.

[0010] By adopting the above technical solution, the pressure frame is set to an adjustable structure. In this way, when the support frame and the pressure assembly have been installed in place, the degree to which the pressure wheel presses the door curtain leaf can be adjusted by changing the position of the wheel seat, thereby avoiding the situation where the door curtain leaf is not pressed down and the device cannot work, and also avoiding the situation where the door curtain leaf is pressed too tightly and the counter-effect occurs. The installation accuracy of the device can be reduced, and it is convenient to obtain the tightness of the pressure wheel with better noise reduction effect through debugging.

[0011] Furthermore, the wheel seat includes two parallel side plates and a connecting plate connecting the two side plates, the two side plates are respectively located on both sides of the connecting seat, sliders or sliding grooves are provided on the surfaces of the two side plates facing each other, the connecting seat is provided with matching sliding grooves or sliders, and the threaded rod is connected to the connecting plate.

[0012] Furthermore, one end of the threaded rod away from the seat rod is fixedly connected to a rotating cap, and the rotating cap is provided with anti-slip grooves to facilitate manual operation of the threaded rod rotation.

[0013] Preferably, the support frame is in the shape of a rectangular frame, and the support frame includes two parallel guide rods, two adjustment frames located at both ends of the guide rods and a locking bolt, the adjustment frame is U-shaped, and an adjustment groove is provided on the U-shaped inner wall of the adjustment frame, the ends of the two guide rods are located in the adjustment groove, and the surfaces of the two guide rods opposite to each other are provided with mounting grooves, the two ends of the pressure frame are located in the mounting grooves, and the locking bolt is threadedly connected to the adjustment frame and abuts against the surface of one of the guide rods away from the other guide rod.

[0014] By adopting the above technical solution, the guide rail is supported by an adjustment frame, the pressure frame is set between two parallel guide rails, the spacing between the two guide rails is adjusted by a locking bolt, and the pressure frame is clamped and fixed between the two guide rails. This structure can facilitate the adjustment of the number and position of the pressure frame, so as to obtain a pressure point with better noise reduction effect through debugging. In addition, this structure can also adjust the overall width of the support frame to a certain extent, which helps to adapt to fire shutters of different widths.

[0015] Preferably, it also includes a mounting plate, on which a connection hole is opened, and the support frame is fixed to the top box of the fireproof rolling shutter or the wall around the fireproof rolling shutter through the mounting plate, so as to facilitate the modification of the ordinary fireproof rolling shutter.

[0016] A fireproof rolling shutter comprises a top box, a door frame and door curtain leaves, and also comprises an anti-swing device for the fireproof rolling shutter. A support frame is fixedly arranged below the top box, and a pressing wheel abuts against the door curtain leaves of the fireproof rolling shutter.

[0017] By adopting the above technical solution, the pressing component is used to press the door curtain leaf from several points to reduce the deformation of the door curtain leaf in the horizontal direction, thereby reducing the swing amplitude of the door curtain leaf and reducing the noise generated by the collision between the door curtain leaf and the door frame.

[0018] The utility model has the following beneficial effects:

[0019] The utility model uses a pressing component to press against the door curtain leaf from several points, which can reduce the deformation of the door curtain leaf in the horizontal direction, thereby reducing the swing amplitude of the door curtain leaf and reducing the noise generated by the collision between the door curtain leaf and the door frame. This solution can be installed on the existing ordinary rolling shutter door very simply, and can obtain a good noise reduction effect through debugging, so as to adapt to fireproof rolling shutters of various sizes and have good applicability. It has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model fireproof rolling shutter;

[0021] Figure 2 It is a side view schematic diagram of the anti-sway device for fireproof rolling curtain of the utility model;

[0022] Figure 3 This is a partial schematic diagram of the anti-sway device for fireproof roller shutter installed on the wall at the installation plate;

[0023] Figure 4 It is a structural schematic diagram of the support frame;

[0024] Figure 5 The structure diagram of the pressing component of the pressing frame is the pressing frame 1;

[0025] Figure 6The structure diagram of the pressing component of the pressing frame is the pressing frame 2;

[0026] Figure 7 The pressure frame is an exploded schematic diagram of the pressure assembly of the pressure frame 2.

[0027] Explanation of the reference numerals in the accompanying drawings: 100, support frame; 110, guide rail rod; 111, mounting groove; 120, adjustment frame; 121, adjustment groove; 130, locking bolt; 200, pressure assembly; 210, pressure frame one; 211, seat rod one; 212, wheel rod; 213, diagonal support rod; 220, pressure frame two; 221, seat rod two; 222, wheel seat; 2221, side panel; 2222, connecting plate; 2223, slider; 223, connecting seat; 2231, slide groove; 224, threaded rod; 225, rotating cap; 230, pressure wheel; 300, mounting plate; 301, connecting hole; 401, top box; 402, door frame; 403, door curtain leaf. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are indicated by the same reference numerals.

[0029] An anti-sway device for fireproof rolling shutters, such as Figure 1 and Figure 2 As shown, it is used to resist the door curtain leaf 403 of the fireproof rolling curtain to reduce the noise caused by the swing of the door curtain leaf 403. The anti-swing device for the fireproof rolling curtain includes a support frame 100 and a plurality of pressing components 200. The fireproof rolling curtain using this anti-swing device for the fireproof rolling curtain includes a top box 401, a door frame 402, door curtain leaves 403 and an anti-swing device for the fireproof rolling curtain. The support frame 100 is fixedly arranged under the top box 401, and the pressing wheel 230 is in contact with the door curtain leaf 403 of the fireproof rolling curtain. The support frame 100 is a rectangular frame. As shown Figure 4 and Figure 5 As shown, the pressing assembly 200 includes a pressing frame and a pressing wheel 230. The pressing frame is relatively fixed to the support frame 100, and the pressing wheel 230 is rotatably connected to the pressing frame with a horizontal axis. The pressing wheel 230 is a structure that directly presses the door curtain leaf 403. The projection of the end of the pressing wheel away from the pressing frame in the horizontal plane is located outside the projection of the support frame 100 in this plane to ensure that the pressing frame will not interfere with the door curtain leaf 403. Figure 1 and Figure 2 As shown, the anti-sway device for the fireproof rolling shutter is installed and fixed through the mounting plate 300, and the support frame 100 can be connected to the top box 401 of the fireproof rolling shutter through the mounting plate 300, as shown in FIG. Figure 3 As shown, the fireproof rolling curtain can also be fixed to the wall around the fireproof rolling curtain through a mounting plate 300. The mounting plate 300 is provided with a connecting hole 301 for connecting a fixing bolt.

[0030] It should be noted that for door curtain blades 403 of different materials and sizes, the position of pressure required for optimal noise reduction, the number of pressure points, and the magnitude of the pressure amplitude are not the same. Repeated debugging is required. If the fireproof roller shutter is equipped with an anti-sway device for the fireproof roller shutter, the debugging process can be carried out before production. The size and shape of the support frame 100, the number and position of the pressure frames have been determined during production and processing. The connection between the pressure frame and the support frame 100 can be welded, riveted, or other non-detachable structures. If the existing conventional fireproof roller shutter is to be improved, the user is required to perform debugging. The number and position of the pressure frames are preferably set to a structure that is easy to adjust. A feasible solution is given below. Figure 4 As shown, the support frame 100 includes two parallel guide rails 110, two adjustment frames 120 located at both ends of the guide rails 110, and locking bolts 130. The adjustment frame 120 is U-shaped, and an adjustment slot 121 is provided on the inner wall of the U-shaped adjustment frame 120. The ends of the two guide rails 110 are located in the adjustment slot 121. The surfaces of the two guide rails 110 facing each other are provided with mounting slots 111. The end of the seat rod is located in the mounting slot 111. The locking bolt 130 is threadedly connected to the adjustment frame 120 and abuts against the surface of one of the guide rails 110 away from the other guide rail 110, so that the pressing frame can be clamped and fixed between the two guide rails 110. In addition, the pressing wheel can be located above the support frame 100 or below the support frame 100.

[0031] In order to ensure that the pressing component 200 presses the door curtain blade 403 to a moderate extent, the pressing wheel 230 is placed in a suitable position by adjusting the installation position of the support frame 100 or the position of the pressing component 200 relative to the support frame 100, so that the pressing frame can adopt a fixed structure, such as the pressing frame 1 210 of Example 1 below. The pressing wheel 230 can also be placed in a suitable position by adjusting the shape of the pressing frame, so that the pressing frame needs to adopt a deformable structure, such as the pressing frame 2 20 of Example 2 below.

[0032] Embodiment 1, as Figure 5 As shown, the pressure frame 210 includes a seat rod 211, a wheel rod 212 and an oblique support rod 213, both ends of the seat rod 211 are located in the mounting groove 111, one end of the wheel rod 212 is fixedly connected to the seat rod, and the other end of the wheel rod 212 is connected to the pressure wheel 230, and both ends of the oblique support rod 213 are respectively fixedly connected to the seat rod 211 and the wheel rod 212, and the seat rod 211, the wheel rod 212 and the oblique support rod 213 form a triangle.

[0033] Embodiment 2, as Figure 6 and Figure 7As shown, the second pressing frame 220 includes a second seat rod 221, a wheel seat 222, a connecting seat 223 and a threaded rod 224. Both ends of the second seat rod 221 are located in the mounting groove 111. The connecting seat 223 is fixedly connected to the second seat rod 221. The wheel seat 222 includes two parallel side plates 2221 and a connecting plate 2222 connecting the two side plates 2221. The two side plates 2221 are respectively located on both sides of the connecting seat 223. Slide blocks 2223 are provided on the surfaces of the two side plates 2221 facing each other. The connecting seat 223 is provided with a sliding groove 2231 adapted thereto. The slide block 2223 is located in the sliding groove 2231 to realize the sliding connection between the wheel seat 222 and the connecting seat 223. The slide block 2223 and the sliding groove 2231 can be interchanged. The threaded rod 224 is threadedly connected to the connecting seat 223 and is rotatably connected to the connecting plate 2222. The geometric axis and the rotation axis of the threaded rod 224 coincide with each other and are parallel to the sliding direction of the wheel seat 222. The wheel seat 222 can slide closer to or away from the door curtain leaf 403, thereby driving the pressing wheel 230 to press the door curtain leaf 403 more tightly or loosely. In order to facilitate manual rotation of the threaded rod 224, a rotating cap 225 can be fixedly connected to the end of the threaded rod 224 away from the seat rod 221, and the rotating cap 225 is provided with anti-slip grooves.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An anti-sway device for a fireproof rolling shutter, characterized in that: The invention comprises a support frame (100) and a plurality of pressing assemblies (200), wherein the pressing assemblies (200) comprise a pressing frame and a pressing wheel (230) rotatably connected to the pressing frame, the pressing frame is fixed to the support frame (100), the rotation axis of the pressing wheel (230) is horizontal, and the projection of the pressing wheel (230) away from one end of the pressing frame in a horizontal plane is located outside the projection of the support frame (100) in the plane.

2. The anti-sway device for fireproof rolling shutter according to claim 1, characterized in that: The pressure frame comprises a seat rod, a wheel rod (212) and an oblique support rod (213); two ends of the seat rod are respectively connected to the support frame (100); one end of the wheel rod (212) is fixedly connected to the seat rod; the other end of the wheel rod (212) is connected to the pressure wheel (230); two ends of the oblique support rod (213) are respectively fixedly connected to the seat rod and the wheel rod (212); and the seat rod, the wheel rod (212) and the oblique support rod (213) form a triangle.

3. The anti-sway device for fireproof rolling shutter according to claim 1, characterized in that: The pressing frame comprises a seat rod, a wheel seat (222), a connecting seat (223) and a threaded rod (224); two ends of the seat rod are respectively connected to the support frame (100); the connecting seat (223) is fixedly connected to the seat rod; the wheel seat (222) is slidably connected to the connecting seat (223); the threaded rod (224) is threadedly connected to the connecting seat (223) and is rotatably connected to the wheel seat (222); the geometric axis and the rotation axis of the threaded rod (224) coincide with each other and are parallel to the sliding direction of the wheel seat (222); the wheel seat (222) can slide close to or away from the door curtain leaf (403).

4. The anti-sway device for fireproof rolling shutter according to claim 3, characterized in that: The wheel seat (222) comprises two side plates (2221) arranged in parallel and a connecting plate (2222) connecting the two side plates (2221); the two side plates (2221) are respectively located on two sides of the connecting seat (223); sliding blocks (2223) or sliding grooves (2231) are arranged on surfaces of the two side plates (2221) facing each other; the connecting seat (223) is provided with sliding grooves (2231) or sliding blocks (2223) adapted thereto; and the threaded rod (224) is connected to the connecting plate (2222).

5. The anti-sway device for fireproof rolling shutter according to claim 3, characterized in that: One end of the threaded rod (224) away from the seat rod is fixedly connected to a rotating cap (225), and the rotating cap (225) is provided with anti-slip grooves.

6. The anti-sway device for fireproof rolling shutter according to claim 1, characterized in that: The support frame (100) is in the shape of a rectangular frame. The support frame (100) comprises two parallel guide rails (110), two adjustment frames (120) located at two ends of the guide rails (110), and locking bolts (130). The adjustment frame (120) is U-shaped. An adjustment groove (121) is provided on the U-shaped inner wall of the adjustment frame (120). The ends of the two guide rails (110) are located in the adjustment groove (121). The surfaces of the two guide rails (110) facing each other are provided with mounting grooves (111). The two ends of the pressure frame are located in the mounting grooves (111). The locking bolts (130) are threadedly connected to the adjustment frame (120) and abut against a surface of one of the guide rails (110) away from the other guide rail (110).

7. The anti-sway device for fireproof rolling shutter according to claim 1, characterized in that: It also includes a mounting plate (300), on which a connection hole (301) is opened, and the support frame (100) is fixed to the top box (401) of the fireproof rolling curtain or the wall around the fireproof rolling curtain through the mounting plate (300).

8. A fireproof rolling shutter, comprising a top box (401), a door frame (402) and a door curtain leaf (403), characterized in that: It also includes an anti-sway device for fireproof rolling shutter as described in any one of claims 1 to 7, wherein the support frame (100) is fixedly arranged below the top box (401), and the pressing wheel (230) is in contact with the door curtain leaf (403) of the fireproof rolling shutter.

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