Outer-circle inner-octagonal bracket for lifting octagonal reel for fire resisting shutter

Abstract

The utility model provides an outer-circle inner-octagonal bracket for lifting an octagonal reel for a fire resisting shutter. The outer-circle inner-octagonal bracket comprises a tray and a bracket body. The outer side of the tray is circular, an octagonal hole is formed in the center of the inner side of the tray, the tray is clamped to the periphery of the octagonal reel through the octagonal hole of the tray, and the tray is arranged in the bracket; the bracket comprises two fixing rods, a supporting rod and a limiting rod; a limiting roller is fixedly arranged in the center of the bottom end of the limiting rod, and a supporting roller is arranged on each of the two sides of the top end of the supporting rod; and the tray is clamped among the three rollers in the bracket. The outer-circle inner-octagonal bracket of the octagonal reel for lifting the fireproof roller shutter can assist in lifting and lifting the long octagonal reel, stress borne by the octagonal reel is shared, the octagonal reel is prevented from being deformed due to overlarge load bearing, and the overall structure stability and normal operation of the fireproof roller shutter door are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of fireproof rolling shutter door equipment, and in particular relates to an outer circle inner octagonal bracket for lifting an octagonal roller shaft of a fireproof rolling shutter. Background Technology

[0002] In the current market, the rollers used for rolling up fire-resistant roller shutters are generally circular, with a certain number also being octagonal. Octagonal rollers are structurally stable and easy to roll up, but for larger fire-resistant roller shutters, the rollers are also longer. To prevent excessively long rollers from deforming and sagging, circular rollers can be supported by rollers in the middle to prevent deformation. However, octagonal rollers cannot be directly supported by rollers. Therefore, this utility model provides an outer circular and inner octagonal bracket for lifting octagonal rollers used in fire-resistant roller shutters to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides an outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft of a fireproof roller shutter.

[0004] The technical solution of this utility model is: an outer circle and inner octagonal bracket for lifting an octagonal roller shaft of a fireproof roller shutter, including a tray and a bracket;

[0005] The outer side of the tray is circular, and an octagonal hole is opened in the center of its inner side. The tray is snapped onto the outer side of the octagonal scroll through the octagonal hole, and the tray is set inside the bracket.

[0006] The bracket includes two fixed rods, one support rod, and one limiting rod; the two fixed rods are arranged longitudinally, and the limiting rod and the support rod are arranged transversely from top to bottom between the two fixed rods; a limiting roller is fixedly provided at the center of the bottom end of the limiting rod, and a support roller is provided on both sides of the top end of the support rod;

[0007] The tray is engaged between three rollers within the bracket.

[0008] Furthermore, each of the two fixing rods inside the bracket is provided with a U-shaped groove, and both ends of the limiting rod inside the bracket are provided with threaded holes, and bolts are provided in the threaded holes. A handle is provided on one side of the bolts; the bolts pass through the U-shaped grooves of the fixing rods and are threaded into the threaded holes of the limiting rods.

[0009] Furthermore, the thickness of the tray is 1 cm.

[0010] Furthermore, the limiting roller and the two supporting rollers inside the bracket are all made of rubber, and all three have a thickness of 2.5cm.

[0011] Furthermore, the two fixing rods are fixed to the top beam or wall surface at the top of the roller shutter door opening.

[0012] Furthermore, the limiting rollers and support rollers inside the bracket are each provided with limiting grooves, and the width of the limiting grooves is not less than the thickness of the tray.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides an outer circle and inner octagonal bracket for lifting fireproof roller shutters with an octagonal roller shaft. This bracket can assist in lifting and supporting long fireproof roller shutters with an octagonal roller shaft (one shaft for double or multiple roller shutters), preventing them from deforming due to excessive load and ensuring the stability and normal operation of the overall structure of the fireproof roller shutter door. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 This is a schematic diagram of the dispersed structure of this utility model;

[0018] Figure 4 This is a reference diagram showing the usage state of this utility model.

[0019] Reference numerals: 1. Tray; 2. Bracket; 3. Fixing rod; 4. Support rod; 5. Limiting rod; 6. Limiting groove; 7. Octagonal roller; 8. Roller blind; 301. U-shaped groove; 302. Bolt; 303. Handle; 401. Support roller; 501. Limiting roller. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0021] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1-4 As shown, an octagonal roller support for lifting fireproof roller shutters includes a tray 1 and a support 2. The outer side of the tray 1 is circular, and an octagonal hole is provided in the center of its inner side. The tray 1 is engaged with the outer periphery of the octagonal roller 7 through the octagonal hole, and the tray 1 is placed inside the support 2. The support 2 includes two fixing rods 3, one support rod 4, and one limiting rod 5. The two fixing rods 3 are arranged longitudinally, and the limiting rod 5 and the support rod 4 are arranged transversely from top to bottom between the two fixing rods 3. A limiting roller 501 is fixedly provided at the center of the bottom end of the limiting rod 5, and a support roller 401 is provided on both sides of the top end of the support rod 4. The tray 1 is engaged between the three rollers inside the support 2.

[0023] Specifically, each of the two fixing rods 3 inside the bracket 2 is provided with a U-shaped groove 301, and both ends of the limiting rod 5 inside the bracket 2 are provided with threaded holes. Bolts 302 are provided in the threaded holes, and a handle 303 is provided on one side of the bolts 302. The bolts 302 pass through the U-shaped groove 301 of the fixing rod 3 and are threaded into the threaded hole of the limiting rod 5.

[0024] Specifically, tray 1 is 1cm thick.

[0025] Specifically, the limiting roller 501 and the two supporting rollers 401 inside the bracket 2 are all made of rubber, and the thickness of all three is 2.5cm.

[0026] Specifically, the two fixing rods 3 are fixed to the top beam or wall at the top of the roller shutter door opening.

[0027] Specifically, the limiting roller 501 and the supporting roller 401 inside the bracket 2 are both provided with limiting grooves 6, and the width of the limiting grooves 6 is not less than the thickness of the tray 1.

[0028] During installation, first install the tray 1 at the predetermined position on the octagonal scroll 7. Installation can be done by direct splicing or by pre-dividing the tray 1 into two equal halves and welding them together during installation. Then, move the bracket 2 to the bottom of the tray 1, and move the limiting rod 5 inside the bracket 2 to the highest point of the U-shaped groove 301. Place the two support rollers 401 at the bottom of the bracket 2 against the bottom of the tray 1, ensuring that the edge of the tray 1 is engaged in the limiting grooves 6 of the two support rollers 401. Next, install and fix the top of the bracket 2 onto the top beam or wall of the doorway. Then, press down on the limiting rod 5, ensuring that the limiting grooves 6 of the limiting rollers 501 are engaged in the top edge of the tray 1. Finally, fix the limiting rod 5 to complete the installation. The vertical movement and fixing of the limiting rod 5 can be achieved by tightening and loosening the bolt 302. The handle 303 of the bolt 302 allows for convenient manual operation.

[0029] Secondly, regarding the installation position of the tray 1, when the length of the octagonal roller 7 is too long, i.e., when the fireproof roller shutter is a multi-roller shutter on a single roller, the tray 1 can be installed in the center of the octagonal roller 7 to share the stress on the roller and prevent it from deforming. When the roller shutter 8 of the fireproof roller shutter is too long or the material is too heavy, resulting in the overall weight of the roller shutter 8 being too heavy, two trays 1 can also be set up in conjunction with two brackets 2 to lift and raise both ends of the octagonal roller 7, so as to share the stress on the end plugs and support plates of the octagonal roller 7 and enhance the overall stability of the fireproof roller shutter 8.

[0030] Furthermore, depending on the actual installation situation, for ease of installation, when the tray 1 is installed at both ends of the octagonal scroll 7, the tray 1 can be directly connected by a sleeve, and the limiting grooves 6 of the three rollers are used for lateral limiting; when the tray 1 is installed in the middle of the octagonal scroll 7, the tray 1 can be divided into two halves and then welded and fixed to the outside of the octagonal scroll 7. At this time, the limiting roller 501 and the two supporting rollers 401 do not need to be provided with limiting grooves 6.

[0031] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0032] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft of a fireproof roller shutter, characterized in that: Includes a tray and a bracket; the outer side of the tray is circular, and an octagonal hole is opened in the center of its inner side. The tray is snapped onto the outer side of an octagonal scroll through the octagonal hole, and the tray is set inside the bracket. The bracket includes two fixed rods, one support rod, and one limiting rod; the two fixed rods are arranged longitudinally, and the limiting rod and the support rod are arranged transversely from top to bottom between the two fixed rods; a limiting roller is fixedly provided at the center of the bottom end of the limiting rod, and a support roller is provided on both sides of the top end of the support rod; The tray is engaged between three rollers within the bracket.

2. The outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft according to claim 1, characterized in that: The bracket has two fixed rods with U-shaped grooves, and the bracket has threaded holes at both ends of the limiting rod. Bolts are installed in the threaded holes, and a handle is installed on one side of the bolts. The bolts pass through the U-shaped grooves of the fixed rods and are threaded into the threaded holes of the limiting rods.

3. The outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft according to claim 1, characterized in that: The thickness of the tray is 1 cm.

4. The outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft according to claim 1, characterized in that: The bracket contains one limiting roller and two supporting rollers, all of which are made of rubber and have a thickness of 2.5cm.

5. The outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft according to claim 1, characterized in that: The two fixing rods are fixed to the top beam or wall at the top of the roller shutter door opening.

6. The outer circumferential and inner octagonal bracket for lifting an octagonal roller shaft according to claim 1, characterized in that: The limiting rollers and supporting rollers inside the bracket are all provided with limiting grooves, and the width of the limiting grooves is not less than the thickness of the tray.

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