Fireproof assembly of support and hanger

Abstract

The fireproof assembly comprises a prefabricated fireproof outer cover and a prefabricated outer cover connector, the prefabricated fireproof outer cover and the prefabricated outer cover connector are made of high-temperature-resistant fireproof materials, the prefabricated fireproof outer cover comprises an inner container supporting layer with openings in the two ends, and a cavity matched with a hanging rod or a cross arm is formed in the inner side of the inner container supporting layer. The prefabricated outer cover connectors are arranged between every two adjacent sections of the prefabricated fireproof outer covers, each prefabricated outer cover connector comprises an inner container supporting layer with openings in the two ends, a cavity matched with the corresponding prefabricated fireproof outer cover is formed in the inner side of each inner container supporting layer, and the outer side of each inner container supporting layer is coated with a fireproof coating layer. The structure is simple in structure and convenient to construct, the fireproof performance of the metal suspender and the cross arm is remarkably enhanced through the method that the prefabricated fireproof wrapping cover is installed outside the metal suspender and the cross arm in advance, the stability of fire disaster resistance of the smoke prevention and exhaust air pipe is improved, and the requirement for the fire endurance of an installation area is met.

Description

Technical Field

[0001] The utility model relates to the technical field of building fire prevention construction, and particularly relates to a fire prevention component for a support and hanger. Background Art

[0002] With the continuous improvement of people's living standards, people's awareness of fire prevention and escape has been continuously enhanced. The state has put forward higher requirements for the fire prevention performance of fire-fighting facilities. For example, in the "Technical Code for Building Smoke Control and Exhaust Systems" GB51251, it has been clearly stipulated that for the air ducts of the smoke control and exhaust systems related to fire protection, measures such as fire protection cladding should be adopted to ensure that their fire resistance limit meets the fire protection requirements. However, the current practices mainly focus on the fire prevention performance of the pipeline system itself, such as using fire-resistant air ducts or flame-retardant trough boxes. However, the supporting supports and hangers have not taken corresponding fire prevention measures. As an integral part of the system, in case of a fire, once the supports and hangers of the air ducts and trough boxes fail and break due to high-temperature fire roasting, the fire prevention function of the entire system will also fail. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fire prevention component for a support and hanger to solve the technical problems described in the background art.

[0004] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0005] A fire prevention component for a support and hanger includes a prefabricated fire protection outer cover and a prefabricated outer cover joint processed from high-temperature resistant fire protection materials. The prefabricated fire protection outer cover includes an inner liner support layer with openings at both ends. A cavity matching the hanger rod or cross member is arranged inside the inner liner support layer, and a fire protection coating layer is coated on its outer side. The prefabricated outer cover joint is arranged between two adjacent sections of the prefabricated fire protection outer cover. The prefabricated outer cover joint includes an inner liner support layer with openings at both ends. A cavity matching the prefabricated fire protection outer cover is arranged inside the inner liner support layer, and a fire protection coating layer is coated on its outer side.

[0006] Preferably, the gap between the end of the prefabricated fire protection outer cover and the hanger rod or cross member is tightly sealed with fire protection sealant, and the gap between the prefabricated outer cover joint and the prefabricated fire protection outer cover is also tightly sealed with fire protection sealant.

[0007] Preferably, the set length of the prefabricated outer cover joint is not less than twice the diameter of the hanger rod or the long side dimension of the cross member.

[0008] Preferably, the joint between two adjacent sections of the prefabricated fire protection outer cover is located in the middle of the prefabricated outer cover joint.

[0009] Preferably, the cavity size of the prefabricated fire protection outer cover is 1 - 2 mm larger than the size of the hanger rod or cross member, and the cavity size of the prefabricated outer cover joint is 1 - 2 mm larger than the size of the prefabricated fire protection outer cover.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: The structure of the utility model is simple and the construction is convenient. By the method of pre-installing the prefabricated fireproof coating cover outside the metal suspender and cross arm, the fireproof performance of the metal suspender and cross arm is significantly enhanced, the stability of the smoke exhaust duct against fire is improved, the fire resistance limit requirement of the installed area is met, and both the fireproof outer cover and the outer cover joint adopt the factory prefabrication processing technology, with high processing efficiency and reliable fireproof performance. During on-site installation, after selecting the corresponding matching specifications, it can be directly cut and sleeved to complete, reducing the installation difficulty and significantly improving the installation efficiency. Moreover, due to the adoption of the process of pre-installing the fireproof outer cover, the problem that fireproof measures cannot be taken at the support and hanger due to the narrow space after the pipeline network is installed is avoided, ensuring the fireproof performance of the support in the narrow space. At the same time, the spraying operation on-site is greatly reduced, and the construction pollution to the pipeline network is avoided to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Through the following detailed description in conjunction with the accompanying drawings, the above and / or other aspects and advantages of the utility model will become clearer and easier to understand. These drawings are only schematic and do not limit the utility model, where:

[0012] Figure 1 is a combined structural schematic diagram of the suspender and the prefabricated fireproof outer cover of the utility model;

[0013] Figure 2 is a combined structural schematic diagram of the cross arm and the prefabricated fireproof outer cover of the utility model;

[0014] Figure 3 is Figure 2 the structural schematic diagram of the A-A section in

[0015] Figure 4 is Figure 2 the enlarged structural schematic diagram of part B in

[0016] Figure 5 is the sectional structural schematic diagram of the prefabricated fireproof outer cover at the cross arm of the utility model.

[0017] Reference numerals: 1, suspender; 2, cross arm; 3, prefabricated fireproof outer cover; 4, prefabricated outer cover joint; 5, inner tank support layer; 6, fireproof coating layer; 7, cavity; 8, fireproof sealant. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the following, embodiments of a support hanger fire protection assembly of the present utility model will be described with reference to the accompanying drawings. The embodiments described herein are specific specific embodiments of the present utility model for explaining the concept of the present utility model, and are all explanatory and exemplary, and should not be construed as limiting the embodiments of the present utility model and the scope of the present utility model. Except for the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the content disclosed in the claims and the specification of this application. These technical solutions include technical solutions that make any obvious substitutions and modifications to the embodiments described herein.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "top", "bottom", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0020] The drawings in this specification are schematic diagrams to assist in explaining the concept of the present utility model, schematically showing the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of the various components of the embodiments of the present utility model, the drawings are not drawn in the same proportion. The same reference numerals are used to represent the same parts.

[0021] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The embodiments cited are only used to explain the present utility model and are not used to limit the scope of the present utility model. The following combines Figures 1-5 , and further details of the preferred embodiments of the present utility model are described as follows:

[0022] As Figures 1-5 shown, a preferred support hanger fire protection assembly of the present utility model includes a prefabricated fire protection outer cover 3 and a prefabricated outer cover joint 4. The prefabricated fire protection outer cover 3 includes an inner liner support layer 5 with openings at both ends. A cavity 7 matching the hanger rod 1 or the cross arm 2 is provided inside the inner liner support layer 5, and a fire protection coating layer 6 is coated on its outer side. The prefabricated outer cover joint 4 is arranged between two adjacent sections of the prefabricated fire protection outer cover 3. The prefabricated outer cover joint 4 includes an inner liner support layer 5 with openings at both ends. A cavity 7 matching the prefabricated fire protection outer cover 3 is provided inside the inner liner support layer 5, and a fire protection coating layer 6 is coated on its outer side.

[0023] The specific construction process of the support hanger related to the present utility model is as follows:

[0024] 1. Processing and manufacturing of the hanger rod 1 and the prefabricated fire protection outer cover 3 at the hanger rod 1

[0025] 1. Fabrication of the suspension rod 1. The suspension rod 1 is made by cutting round steel or galvanized through-threaded rod;

[0026] 2. Fabrication of the prefabricated fireproof outer cover 3 at the suspension rod 1. The inner support layer 5 of the prefabricated fireproof outer cover 3 at the suspension rod 1 is a hollow cylinder, and the material is high-temperature resistant and easy-to-process materials such as aluminum silicate and fireproof board. The diameter of its internal cavity 7 is 1 - 2 mm larger than the diameter of the suspension rod 1. The prefabricated fireproof outer cover 3 selects an appropriate thickness according to the fire resistance of the production materials. For example, the thickness of the fireproof board should be preferably 9 - 12 mm. During specific processing, the basic material of the fireproof board can be pressed through high temperature and high pressure with the help of a circular mold. The inner support layer 5 is prefabricated in sections, and the length of a single section is preferably 2 m. After drying, a 1 - 2 mm thick fireproof coating needs to be applied to the outer side of the prefabricated inner support layer 5. The fireproof coating layer 6 can be sprayed once or in multiple times to ensure the density and integrity of the fireproof coating layer 6;

[0027] 3. Sleeving the prefabricated fireproof outer cover 3 at the suspension rod 1. According to the length of the metal suspension rod 1, after deducting the thread lengths at both ends, it is used as the cutting length of the prefabricated fireproof outer cover 3. The cutting end face should be perpendicular to the axis. After cutting, the metal suspension rod 1 is inserted into the prefabricated fireproof outer cover 3. After the relative position is adjusted (the through-threads at both ends of the metal suspension rod 1 are exposed), at the end parts of both ends of the prefabricated fireproof outer cover 3, the gap between the prefabricated fireproof outer cover 3 and the metal suspension rod 1 is sealed with fireproof sealant 8. For the prefabricated fireproof outer cover 3 that needs to be lengthened due to insufficient length, before installing the second section of the prefabricated fireproof outer cover 3, first install the prefabricated outer cover joint 4 with a matching specification in place, and then install the second section of the prefabricated fireproof outer cover 3. The length of the prefabricated outer cover joint 4 is not less than twice the diameter of the metal suspension rod 1. During installation, it should be ensured that the joint of the two sections of the prefabricated fireproof outer cover 3 is located in the middle part of the prefabricated outer cover joint 4. After connection, the gap between the prefabricated outer cover joint 4 and the prefabricated fireproof outer cover 3 needs to be sealed with fireproof sealant 8;

[0028] II. Fabrication of the cross arm 2 and the prefabricated fireproof outer cover 3 at the cross arm 2

[0029] 1. Fabrication of the cross arm 2. The cross arm 2 is made by cutting round steel, angle steel, channel steel or other steel materials according to the design dimensions (in the following embodiments, the cross arm 2 in the form of angle steel is taken as an example);

[0030] 2. Fabrication of the prefabricated fireproof outer cover 3 at the cross arm 2

[0031] (1)Fabrication of the inner liner support layer 5. The material of the inner liner support layer 5 is selected as a thin steel plate with a thickness of 1 mm or a flame-retardant PVC plate with a thickness of 2 mm. The size of the internal cavity 7 enclosed by the inner liner support layer 5 is 1 - 2 mm larger than the outer shape of the metal cross-arm 2 sheathed, preferably 2 mm. The inner liner support layer 5 made of metal material is formed by roll pressing or stamping with a mold, and the interface is welded or seamed by lockseaming. The inner liner made of plastic material is formed by thermoplastic extrusion with a mold, and there is no interface in the radial direction. The inner liner support layer 5 is prefabricated in sections, and the length of a single section is preferably 2 m;

[0032] (2)Spraying fireproof coating on the surface layer. The outer surface of the inner liner support layer 5 is sprayed with an ultra-thin fireproof coating. According to different requirements of the fire resistance limit, the thickness of the fireproof coating layer 6 after drying is 1 - 2 mm. The fireproof coating can be sprayed once or in several times to ensure the density and integrity of the fireproof coating layer 6;

[0033] (3)Fabrication of the prefabricated outer cover joint 4. The prefabricated outer cover joint 4 is of a sleeve type. The size of the internal cavity 7 of its inner liner support layer 5 is 1 - 2 mm larger than the outer shape size of the prefabricated fireproof outer cover 3, preferably 2 mm. The thickness of the fireproof coating layer 6 of the prefabricated outer cover joint 4 matches the thickness of the fireproof coating layer 6 of the connected prefabricated fireproof outer cover 3;

[0034] 3. The prefabricated fireproof outer cover 3 is sleeved on the cross-arm 2. Select the prefabricated fireproof outer cover 3 with a matching specification according to the size of the cross-arm 2. After deducting the length occupied by the connection part, calculate the length of the prefabricated fireproof outer cover 3 that needs to be intercepted, and intercept the prefabricated fireproof outer cover 3 with the corresponding length. When intercepting, it should be noted that the end face is perpendicular to the axis. Then, the prefabricated fireproof outer cover 3 is sleeved into the cross-arm 2. The gaps between the two end parts of the prefabricated fireproof outer cover 3 and the cross-arm 2 are sealed tightly with the fireproof sealant 8. For the prefabricated fireproof outer cover 3 that needs to be lengthened due to insufficient length, before installing the second section of the prefabricated fireproof outer cover 3, first install the prefabricated outer cover joint 4 with a matching specification in place, and then install the second section of the prefabricated fireproof outer cover 3. The length of the prefabricated outer cover joint 4 is not less than twice the long side dimension of the metal cross-arm 2. When installing, it should be ensured that the joint of the two sections of the prefabricated fireproof outer cover 3 is located in the middle part of the prefabricated outer cover joint 4. After the connection is completed, the gap between the prefabricated outer cover joint 4 and the prefabricated fireproof outer cover 3 needs to be sealed with the fireproof sealant 8;

[0035] III. The hanger rod 1 and the cross-arm 2 are fixedly connected by bolts;

[0036] IV. The ends of the hanger rod 1 and the cross-arm 2 are coated by intercepting the prefabricated fireproof outer cover 3 with the corresponding length. When installing, cut off part of the prefabricated fireproof outer cover 3 as needed to ensure avoiding the rods at the corresponding positions. After sleeving, apply the fireproof sealant 8 at the opening at the end of the prefabricated fireproof outer cover 3 for sealing;

[0037] V. The exposed bolts and metal nuts are protected by stainless steel decorative cover caps. Before covering with the decorative cover caps, an appropriate amount of fireproof sealant 8 is sprayed inside to ensure that the internal voids of the decorative cover caps are filled densely. Finally, fireproof paint is sprayed on the outer surface of the decorative cover caps.

[0038] It should be noted that although not explicitly mentioned in the above specific implementation steps, a prefabricated outer cover joint 4 can also be provided at the hanger 1 for the prefabricated fireproof outer cover 3 to be extended.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fireproof component for a support hanger, characterized in that: It includes a prefabricated fireproof outer cover (3) and a prefabricated outer cover joint (4) processed from high-temperature resistant fireproof materials. The prefabricated fireproof outer cover (3) includes an inner liner support layer (5) with openings at both ends. A cavity (7) matching the hanging rod (1) or cross arm (2) is provided inside the inner liner support layer (5), and a fireproof coating layer (6) is coated on its outer side. The prefabricated outer cover joint (4) is arranged between two adjacent sections of the prefabricated fireproof outer cover (3). The prefabricated outer cover joint (4) includes an inner liner support layer (5) with openings at both ends. A cavity (7) matching the prefabricated fireproof outer cover (3) is provided inside the inner liner support layer (5), and a fireproof coating layer (6) is coated on its outer side.

2. The fireproof component of a support hanger according to claim 1, characterized in that: The gap between the end of the prefabricated fireproof outer cover (3) and the hanging rod (1) or cross arm (2) is tightly sealed with a fireproof sealant (8), and the gap between the prefabricated outer cover joint (4) and the prefabricated fireproof outer cover (3) is also tightly sealed with a fireproof sealant (8).

3. The fire-proof component of a support hanger according to claim 1, characterized in that: The set length of the prefabricated outer cover joint (4) is not less than twice the diameter of the hanging rod (1) or the long side dimension of the cross arm (2).

4. The fireproof component of a support hanger according to claim 1, characterized in that: The joint of two adjacent sections of the prefabricated fireproof outer cover (3) is located in the middle of the prefabricated outer cover joint (4).

5. The fireproof component of a support hanger according to claim 1, wherein: The size of the cavity (7) of the prefabricated fireproof outer cover (3) is 1 - 2 mm larger than the size of the hanging rod (1) or the cross arm (2), and the size of the cavity (7) of the prefabricated outer cover joint (4) is 1 - 2 mm larger than the size of the prefabricated fireproof outer cover (3).

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