Fire-fighting ventilation pipeline mounting structure

Abstract

The invention discloses a fire-fighting ventilation pipeline mounting structure which comprises hoisting supports, at least two hoisting supports form a group, the multiple hoisting supports in the same group are used for jointly hoisting the same pipe joint unit of a fire-fighting ventilation pipeline, each hoisting support comprises a bottom supporting rod and two vertical rod pieces, and the two ends of each bottom supporting rod are connected with the two vertical rod pieces correspondingly; the bottom supporting rod is provided with a supporting assembly, the supporting assembly comprises a lower supporting block and an upper supporting block, the lower supporting block is connected with the bottom supporting rod, the upper supporting block is used for being connected with the lower surface of the fire-fighting ventilation pipeline, the lower supporting block is provided with a first ball guiding face, and the upper supporting block is provided with a second ball guiding face matched with the first ball guiding face. The curvature centers of the first ball guide faces of the supporting assemblies in the same set coincide. In the process of installing the fire-fighting pipeline, the adjacent end faces of the two adjacent pipe joint units can be kept attached or parallel as much as possible, and therefore the sealing performance of connection between the adjacent pipe joint units can be improved.

Description

Technical Field

[0001] The present application relates to the field of pipeline installation technology, and in particular to a fire protection ventilation pipeline installation structure. Background Art

[0002] Fire ventilation ducts are an integral part of the fire protection system, responsible for removing smoke and harmful gases from the building while providing necessary ventilation conditions for firefighters.

[0003] The fire ventilation duct is formed by connecting the pipe segment units in series. Two adjacent pipe segment units are usually connected by a flange structure. Due to the error of the installation position of the installation structure and the processing error of the pipe segment unit itself, it is difficult to keep the end faces of the two adjacent pipe segment units parallel or in contact when the adjacent pipe segment units are connected, making it difficult to ensure the sealing when the adjacent pipe segments of the fire pipe are connected. Summary of the invention

[0004] In order to improve the sealing performance of the connection between adjacent pipe segment units of a fire ventilation duct, the present application provides a fire ventilation duct installation structure.

[0005] The fire ventilation duct installation structure provided in this application adopts the following technical solution: A fire ventilation duct installation structure includes a hanging bracket, wherein at least two of the hanging brackets form a group, and multiple hanging brackets in the same group are used to jointly hang the same pipe section unit of the fire ventilation duct, and the hanging bracket includes a bottom support rod and two vertical rods, and the two ends of the bottom support rod are respectively connected to the two vertical rods; the bottom support rod is provided with a support assembly, and the support assembly includes a lower support block and an upper support block, the lower support block is connected to the bottom support rod, and the upper support block is used to connect the lower surface of the fire ventilation duct, the lower support block is provided with a first ball guide surface, and the upper support block is provided with a second ball guide surface adapted to the first ball guide surface, and the curvature centers of the first ball guide surfaces of the support assemblies in the same group coincide.

[0006] By adopting the above technical scheme, when installing the pipe segment unit of the fire ventilation duct using the fire ventilation duct installation structure, first install the hanging bracket for installing the pipe segment unit to the top of the building, so that the vertical rod of the hanging bracket is fixed to the top of the building, and then the pipe segment unit to be installed is hung above the bottom support rod of the hanging bracket by using the hanging equipment, so that the upper support block supports the pipe segment unit, and then the end of the pipe segment unit being installed is connected with the end of the pipe segment unit previously installed and fixed. When the end face of the pipe segment unit being installed cannot be kept parallel to the end face of the pipe segment unit previously installed and fixed, the position of the pipe segment unit being installed is adjusted, and the position of the pipe segment unit being installed can be adjusted more freely by making a small spherical rotation between the upper support block and the corresponding lower support block, until the end face of the pipe segment unit being installed is kept parallel to the end face of the pipe segment unit previously installed, so that after the two pipe segment units are connected, a high sealing effect can be maintained and a relatively stable connection state can be formed.

[0007] Optionally, a fastening bolt is connected between the lower support block and the upper support block, the fastening bolt is threadedly connected to the upper support block, the fastening bolt is through-connected to the lower support block, the lower support block is provided with a through hole for the fastening bolt to pass through, and the through hole and the fastening bolt are clearance-matched.

[0008] By adopting the above technical solution, after the end of the pipe segment unit is connected and fixed to the end of the previously installed and fixed pipe segment unit, the fastening bolts of each support component are locked to keep the upper support block and the corresponding lower support block relatively fixed, so that each support component can form a relatively stable supporting state for the pipe segment unit.

[0009] Optionally, the number of the support assemblies of each bottom support rod is set to two; the lower support blocks of adjacent support assemblies are connected by a lower connecting rod, and the upper support blocks of adjacent support assemblies are connected by an upper connecting rod, and the upper surface of the upper support block is provided with a limit protrusion, which is used to abut the vertical side of the joint unit.

[0010] The gravity of the pipe segment unit indirectly acts on the contact surface between the upper support block and the lower support block, so that the contact surface between the upper support block and the lower support block forms a horizontal component force, thereby causing the various support components to have a tendency to move closer to or away from each other; by adopting the above technical scheme, the adjacent lower support blocks are connected by the lower connecting rod, so that the lower support blocks of each support component form a relatively stable whole through the lower connecting rod, and the adjacent upper support blocks are connected by the upper connecting rod, so that the upper support blocks of each support component form a relatively stable whole through the upper connecting rod. Therefore, when the gravity of the pipe segment unit acts on the various support components, it is not easy for the various support components to have a tendency to move closer to or away from each other, which is conducive to making each support component form a more stable supporting effect on the pipe segment unit.

[0011] Optionally, a transverse limiting assembly is connected between the two vertical rods, and the transverse limiting assembly is used to prevent the pipe segment unit from generating horizontal displacement perpendicular to its own length direction.

[0012] By adopting the above technical solution, after the pipe segment unit is installed, the displacement of the pipe segment unit along its own length direction is limited by the previously installed and fixed pipe segment unit. By setting a transverse limit assembly, the horizontal displacement of the pipe segment unit perpendicular to its own length direction can be limited, so that the position of the pipe segment unit is further stabilized.

[0013] Optionally, the transverse limit assembly includes a transverse limit screw, two first limit nuts and two second limit nuts, the transverse limit screw passes through the two vertical rods at the same time, the two first limit nuts are located between the two second limit nuts; the two first limit nuts are used to jointly lock the pipe section unit; the two vertical rods are located between the two second limit nuts, and the second limit nuts are used to abut against one side of the vertical rod away from the other vertical rod.

[0014] By adopting the above technical solution, by locking the two second limit nuts, the transverse limit screw can be connected and fixed to the two vertical rods, and by locking the two first limit nuts, the pipe segment unit and the transverse limit screw can be connected and fixed, so that the pipe segment unit is limited.

[0015] Optionally, the transverse limit screw is provided with an auxiliary limit member, which includes two abutment plates and a connecting rod for connecting the two abutment plates, the two abutment plates are located between two first limit nuts, and the two abutment plates are respectively used to abut against the fire ventilation ducts.

[0016] By adopting the above technical solution, the abutment plate of the auxiliary limiting member is located between the first limiting nut and the vertical side of the pipe joint unit. When the first limiting nut is locked, pressure is indirectly applied to the pipe joint unit through the abutment plate, thereby indirectly increasing the effective area between the first limiting nut and the pipe joint unit, so as to improve the stability of the locking state of the first limiting nut.

[0017] Optionally, the transverse limit screw passes through the two abutment plates, the transverse limit screw is located below the connecting rod, the first limit nut and the end of the connecting rod are staggered in the height direction, and the connecting rod can prevent the two first limit nuts from approaching each other.

[0018] By adopting the above technical solution, the first limit nut and the end of the connecting rod are offset in the height direction, so that the end of the connecting rod can assist in bearing the pressure when the first limit nut is locked, which is beneficial to making the force on the upper and lower sides more balanced when the first limit nut is locked, and is beneficial to reducing the squeezing effect of the first limit nut on the side wall of the pipe segment unit, which helps to protect the side wall of the pipe segment unit.

[0019] Optionally, the connecting rod is a metal rod, and when the two first limit nuts are locked with each other, the connecting rod can be forced to undergo flexural deformation.

[0020] By adopting the above technical solution, when the two first limit nuts are relatively locked and have a displacement tendency to approach each other, the connecting rod produces flexural deformation, causing the connecting rod to produce a reverse force on the two first limit nuts, which is beneficial to reduce the loosening of the two first limit nuts.

[0021] Optionally, a basket bolt is connected between the upper support block and the transverse limiting screw.

[0022] By adopting the above technical solution, the upper support block and the limit screw are connected by a basket bolt, so that the bottom support rod and the transverse limit screw are connected through the support assembly and the basket bolt. When the basket bolt is locked, the pipe segment unit is clamped by the transverse limit screw and the bottom support rod, so that the vertical position of the pipe segment unit is restricted, which is beneficial to improve the stability of the pipe segment unit.

[0023] Optionally, the lower end of the vertical rod passes through the bottom support rod, the lower end of the vertical rod is provided with an external thread, the vertical rod is connected to a support nut via the external thread, and the support nut supports the bottom support rod upward.

[0024] By adopting the above technical solution, the support nut is threadedly connected to the lower end of the vertical rod, so that the position between the support nut and the vertical rod in the height direction can be adjusted, thereby adjusting the height position of the bottom support rod. When there is a height difference between the end of the pipe segment unit being installed and the end of the previously installed pipe segment unit, it can be adjusted by adjusting the support nut.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When installing the pipe segment unit using the fire ventilation duct installation structure, when the end face of the pipe segment unit being installed cannot remain parallel to the end face of the previously installed and fixed pipe segment unit, the position of the pipe segment unit being installed is adjusted until the end face of the pipe segment unit being installed remains parallel to the end face of the previously installed pipe segment unit, so that after the two pipe segment units are connected, a higher sealing effect can be maintained.

[0026] 2. After the end of the pipe segment unit is connected and fixed to the end of the previously installed pipe segment unit, the fastening bolts of each support assembly are tightened to keep the upper support block and the corresponding lower support block relatively fixed, so that each support assembly can form a relatively stable support state for the pipe segment unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the installation state of the fire ventilation duct installation structure of this embodiment.

[0028] Figure 2 Schematic diagram of the structure of the support assembly of this embodiment.

[0029] Figure 3 It is a schematic diagram of the present embodiment for reflecting the locking state of the fastening bolt.

[0030] Figure 4 yes Figure 1 Cross-sectional view at AA in the middle.

[0031] Description of reference numerals: 1. Lifting bracket; 11. Bottom support rod; 12. Vertical rod; 3. Horizontal limit assembly; 121. Main rod section; 122. Screw rod section; 13. Support nut; 2. Support assembly; 21. Lower support block; 211. First ball guide surface; 212. Through hole; 22. Upper support block; 221. Second ball guide surface; 222. Limiting protrusion; 23. Fastening bolt; 24. Lower connecting rod; 25. Upper connecting rod; 26. Positioning screw; 31. Horizontal limit screw; 32. First limit nut; 33. Second limit nut; 34. Auxiliary limit piece; 341. Connecting rod; 342. Abutment plate; 4. Basket bolt; 5. Pipe section unit. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a fire ventilation duct installation structure. Figure 1 The fire ventilation duct installation structure includes a hanging bracket 1, and two hanging brackets 1 form a group. The two hanging brackets 1 in each group are used to hang the same pipe section unit 5 of the fire ventilation duct together. The hanging bracket 1 includes a bottom support rod 11 and two vertical rods 12. The two ends of the bottom support rod 11 are respectively connected to the two vertical rods 12, and the bottom support rod 11 and the two vertical rods 12 form an installation area; the bottom support rod 11 is provided with two support assemblies 2 for supporting the pipe section unit 5, that is, each pipe section unit 5 is supported by four support assemblies 2, and a transverse limiting assembly 3 is commonly connected between the two vertical rods 12 of the hanging bracket 1, and the transverse limiting assembly 3 is used to prevent the pipe section unit 5 from producing horizontal displacement perpendicular to its own length direction.

[0034] When installing the fire ventilation duct, use the lifting bracket 1 to lift each pipe segment unit 5 in turn. When installing the pipe segment unit 5, fix the two lifting brackets 1 in the same group to the top of the building, then install the pipe segment unit 5 on the two lifting brackets 1, and then use the lateral limiting assembly 3 to limit the pipe segment unit 5.

[0035] Reference Figure 1 The vertical rod 12 includes a main rod section 121 and a screw section 122. The end of the main rod section 121 away from the screw section 122 is used to connect to the top of the building. The screw section 122 has an external thread. The vertical rod 12 is connected to a support nut 13 through the external thread of the screw section 122. The screw section 122 passes through the bottom support rod 11. The support nut 13 supports the bottom support rod 11 upward. By adjusting the support nut 13, the installation height of the pipe segment unit 5 can be adjusted.

[0036] Reference Figure 2 The support assembly 2 includes a lower support block 21 and an upper support block 22. The lower support block 21 and the upper support block 22 are steel parts. The lower support block 21 is connected and fixed to the bottom support rod 11. The upper surface of the upper support block 22 is used to abut the lower surface of the fire ventilation duct. When the fire ventilation duct is made of steel, the upper support block 22 can be welded and fixed to the lower surface of the pipe segment unit 5. The lower support block 21 is provided with a first ball guide surface 211, and the upper support block 22 is provided with a second ball guide surface 221 adapted to the first ball guide surface 211. The curvature centers of the first ball guide surfaces 211 of the support assembly 2 of the same group coincide. In this embodiment, the first ball guide surface 211 is set as a convex spherical surface, and the second ball guide surface 221 is set as a concave spherical surface; in other implementations, the first ball guide surface 211 can be set as a concave spherical surface, and the second ball guide surface 221 can be set as a convex spherical surface.

[0037] Reference Figure 3 A fastening bolt 23 is connected between the lower support block 21 and the upper support block 22. The fastening bolt 23 is threadedly connected to the upper support block 22. The fastening bolt 23 is connected to the lower support block 21 through a penetration hole 212 for the fastening bolt 23 to penetrate. The penetration hole 212 and the fastening bolt 23 are clearance-matched.

[0038] When installing the pipe segment unit 5, if the end face of the pipe segment unit 5 being installed cannot remain parallel to the end face of the pipe segment unit 5 that was previously installed and fixed, the upper support block 22 and the lower support block 21 of the support assembly 2 are rotated spherically to adjust the parallelism of the adjacent end faces of the two adjacent pipe segment units 5, so that the connection between the two pipe segment units 5 is more stable.

[0039] Reference Figure 1 and Figure 2 In the four support assemblies 2 of the same group, the lower support blocks 21 of every two adjacent support assemblies 2 are connected by a lower connecting rod 24, and the lower connecting rod 24 is welded and fixed to the lower support block 21; the upper support blocks 22 of every two adjacent support assemblies 2 are connected by an upper connecting rod 25, and the upper connecting rod 25 is welded and fixed to the upper support block 22; a limiting protrusion 222 is provided on the upper surface of the upper support block 22, and the limiting protrusion 222 is used to abut the vertical side surface of the pipe joint unit 5, and the limiting protrusion 222 can prevent the pipe joint unit 5 from producing horizontal displacement perpendicular to its own length direction.

[0040] Reference Figure 1 and Figure 4 The transverse limiting assembly 3 includes a transverse limiting screw 31, an auxiliary limiting member 34, two first limiting nuts 32 and two second limiting nuts 33. The transverse limiting screw 31 passes through the two vertical rods 12 at the same time. The two first limiting nuts 32 are located between the two second limiting nuts 33; the two first limiting nuts 32 are used to jointly lock the pipe section unit 5; the two vertical rods 12 are located between the two second limiting nuts 33, and the second limiting nuts 33 are used to abut against the side of the vertical rod 12 away from the other vertical rod 12. The transverse limiting assembly 3 is locked between the two vertical rods 12 through the two second limiting nuts 33.

[0041] The auxiliary limiting member 34 includes a connecting rod 341 and two abutting plates 342. Both the connecting rod 341 and the abutting plates 342 are made of steel. The two ends of the connecting rod 341 are respectively vertically fixedly connected to the two abutting plates 342. The two abutting plates 342 are located between the two first limiting nuts 32. The two abutting plates 342 are respectively used to abut the fire ventilation ducts. The transverse limiting screw 31 passes through the two abutting plates 342. The transverse limiting screw 31 is located below the connecting rod 341. The first limiting nut 32 and the end of the connecting rod 341 are staggered in the height direction. The connecting rod 341 can prevent the two first limiting nuts 32 from approaching each other.

[0042] When the two first limit nuts 32 move spirally toward each other, the two first limit nuts 32 indirectly squeeze the pipe segment unit 5 through the abutment plate 342. At the same time, the connecting rod 341 is flexibly deformed under the squeezing action of the first limit nuts 32. The elastic deformation force of the connecting rod 341 can make the locking state of the first limit nuts 32 more stable.

[0043] Reference Figure 4 A turnbuckle bolt 4 is connected between the upper support block 22 and the transverse limit screw 31. The upper support block 22 is threadedly connected with a positioning screw 26, one end of the turnbuckle bolt 4 is hung with the positioning screw 26, and the other end of the turnbuckle bolt 4 is hung with the transverse screw. By tightening the turnbuckle bolt 4, vertical pressure can be applied to the pipe segment unit 5 to further improve the stability of the installation state of the pipe segment unit 5.

[0044] The implementation principle of the fire ventilation duct installation structure of the embodiment of the present application is as follows: the pipe segment unit 5 of the fire ventilation duct is installed through a group of lifting brackets 1. During the installation of the pipe segment unit 5, a group of lifting brackets 1 are first fixed to the top of the building, and the support assembly 2 and the lateral limit assembly 3 are pre-installed on the lifting bracket 1. Then, the pipe segment unit 5 to be installed is lifted to the top of the bottom support rod 11 of the lifting bracket 1 by using lifting equipment, so that the upper support block 22 supports the pipe segment unit 5.

[0045] Then, the end of the pipe segment unit 5 being installed is connected to the end of the pipe segment unit 5 that was previously installed and fixed. When the end face of the pipe segment unit 5 being installed cannot remain parallel to the end face of the pipe segment unit 5 that was previously installed and fixed, the position of the pipe segment unit 5 being installed is adjusted. By making a small spherical rotation between the upper support block 22 and the corresponding lower support block 21, the position of the pipe segment unit 5 being installed can be adjusted more freely until the end face of the pipe segment unit 5 being installed remains parallel to the end face of the pipe segment unit 5 that was previously installed, so that after the two pipe segment units 5 are connected, a high sealing effect can be maintained.

[0046] After the ends of the pipe segment unit 5 are connected and fixed, the fastening bolts 23 of the support assembly 2 are locked to connect and fix the upper support block 22 and the lower support block 21 of the support assembly 2. Then, the transverse limiting assembly 3 is used to limit the pipe segment unit 5 to limit the horizontal displacement of the pipe segment unit 5 perpendicular to its own length direction, and then the upper support block 22 of the support assembly 2 is connected to the transverse limiting bolt of the transverse limiting assembly 3 by the basket bolt 4 to form a vertical limiting effect on the pipe segment unit 5.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fire ventilation duct installation structure, comprising a hanging bracket (1), wherein at least two of the hanging brackets (1) form a group, and the plurality of hanging brackets (1) in the same group are used to hang the same pipe section unit (5) of the fire ventilation duct together, and the hanging bracket (1) comprises a bottom support rod (11) and two vertical rods (12), and the two ends of the bottom support rod (11) are respectively connected to the two vertical rods (12); characterized in that: The bottom support rod (11) is provided with a support assembly (2), the support assembly (2) comprising a lower support block (21) and an upper support block (22), the lower support block (21) being connected to the bottom support rod (11), the upper support block (22) being used to connect to the lower surface of the fire ventilation duct, the lower support block (21) being provided with a first ball guide surface (211), the upper support block (22) being provided with a second ball guide surface (221) adapted to the first ball guide surface (211), and the curvature centers of the first ball guide surfaces (211) of the support assemblies (2) of the same group coincide with each other.

2. The fire ventilation duct installation structure according to claim 1 is characterized in that: A fastening bolt (23) is connected between the lower support block (21) and the upper support block (22); the fastening bolt (23) is threadedly connected to the upper support block (22); the fastening bolt (23) is connected to the lower support block (21) by penetration; the lower support block (21) is provided with a penetration hole (212) for the fastening bolt (23) to penetrate; and the penetration hole (212) and the fastening bolt (23) are clearance-matched.

3. The fire ventilation duct installation structure according to claim 1 is characterized in that: The number of the support assemblies (2) of each bottom support rod (11) is set to two; the lower support blocks (21) of adjacent support assemblies (2) are connected by a lower connecting rod (24), and the upper support blocks (22) of adjacent support assemblies (2) are connected by an upper connecting rod (25); the upper surface of the upper support block (22) is provided with a limiting protrusion (222), and the limiting protrusion (222) is used to abut against the vertical side surface of the pipe joint unit (5).

4. The fire ventilation duct installation structure according to claim 1 is characterized in that: A transverse limiting assembly (3) is connected between the two vertical rods (12), and the transverse limiting assembly (3) is used to prevent the pipe segment unit (5) from generating a horizontal displacement perpendicular to its own length direction.

5. The fire ventilation duct installation structure according to claim 4 is characterized in that: The transverse limiting assembly (3) comprises a transverse limiting screw (31), two first limiting nuts (32) and two second limiting nuts (33); the transverse limiting screw (31) passes through the two vertical rods (12) at the same time; the two first limiting nuts (32) are located between the two second limiting nuts (33); the two first limiting nuts (32) are used to lock the pipe section unit (5) together; the two vertical rods (12) are located between the two second limiting nuts (33); the second limiting nuts (33) are used to abut against a side of the vertical rod (12) away from the other vertical rod (12).

6. The fire ventilation duct installation structure according to claim 5, characterized in that: The transverse limiting screw (31) is provided with an auxiliary limiting member (34), the auxiliary limiting member (34) comprising two abutment plates (342) and a connecting rod (341) for connecting the two abutment plates (342), the two abutment plates (342) being located between the two first limiting nuts (32), and the two abutment plates (342) being respectively used for correspondingly abutting against the fire ventilation duct.

7. The fire ventilation duct installation structure according to claim 6, characterized in that: The transverse limiting screw (31) passes through the two abutment plates (342), the transverse limiting screw (31) is located below the connecting rod (341), the first limiting nut (32) and the end of the connecting rod (341) are staggered in the height direction, and the connecting rod (341) can prevent the two first limiting nuts (32) from approaching each other.

8. The fire ventilation duct installation structure according to claim 7, characterized in that: The connecting rod (341) is a metal rod, and when the two first limiting nuts (32) are locked together, the connecting rod (341) can be forced to undergo flexural deformation.

9. The fire ventilation duct installation structure according to claim 5, characterized in that: A basket bolt (4) is connected between the upper support block (22) and the transverse limiting screw rod (31).

10. The fire ventilation duct installation structure according to claim 1, characterized in that: The lower end of the vertical rod (12) passes through the bottom support rod (11), the lower end of the vertical rod (12) is provided with an external thread, the vertical rod (12) is connected to a support nut (13) via the external thread, and the support nut (13) supports the bottom support rod (11) upwards.

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