Adjustable hoisting support for installing ventilation pipe of ventilation pipe shaft

Abstract

The utility model discloses an adjustable hoisting support for mounting an air pipe of a vent pipe well, which comprises main connecting pieces detachably connected to two sides of the top of the air pipe, transverse supporting pieces are arranged on the inner sides of the main connecting pieces, and the two transverse supporting pieces are detachably connected; a main lifting lug is detachably mounted on the transverse supporting piece; auxiliary lifting lugs are detachably installed on the inner sides of the two ends of the main connecting piece. The bracket can stably hoist the air pipe, is convenient to disassemble, assemble and fix with the air pipe, is simple and compact in structure and high in adjustability, can adapt to air pipes of different sizes, and has relatively high universality.

Description

Technical Field

[0001] This utility model relates to the field of building duct installation technology, specifically to an adjustable hoisting bracket for installing ventilation shaft ducts. Background Technology

[0002] The installation of ventilation ducts in building vertical shafts has always been a crucial aspect of building ventilation systems, encompassing fire protection and smoke extraction systems, fresh air systems for comfort air conditioning, supply and exhaust systems, and kitchen fume extraction systems. As the required usable floor space in buildings continues to increase, supporting functional areas, especially mechanical and electrical shafts, need to be appropriately reduced in size to improve space utilization. When ventilation shafts are reduced in size, it inevitably increases the difficulty of duct hoisting and installation. Currently, the conventional method for installing ventilation ducts in shafts is to install them section by section from bottom to top. However, this method involves a large amount of work within the shaft, is difficult to execute, results in poor duct connection quality, and is slow to install. The utility model patent with authorization announcement number CN221256193U discloses a device for installing air ducts in narrow building shafts, including: a fixed crossbeam and connectors. A connector is connected to each end of the fixed crossbeam. The connectors are used to connect the top of the air duct. The fixed crossbeam is provided with a lifting ring. After the air duct is connected through the connectors, it is hoisted to the installation position through the lifting ring on the fixed crossbeam. This solves the problem of difficult air duct installation in narrow shafts of high-rise buildings. However, the device only provides one lifting point, which is prone to shaking during hoisting and has poor stability. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable hoisting bracket for installing ventilation ducts in ventilation shafts. This bracket can stably hoist the ducts, facilitate disassembly and fixing with the ducts, has a simple and compact structure, strong adjustability, can adapt to ducts of different sizes, and has strong versatility.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable hoisting bracket for installing ventilation duct shafts includes main connectors detachably connected to both sides of the top of the duct, and transverse support members provided on the inner side of the main connectors. The two transverse support members are detachably connected. Main lifting lugs are detachably installed on the transverse support members. Auxiliary lifting lugs are detachably installed on the inner sides of both ends of the main connectors.

[0006] Preferably, the main connector is U-shaped overall.

[0007] Preferably, the two transverse support members are fitted together, and a first waist-shaped hole is provided on the transverse support member. The two transverse support members are detachably connected by bolts passing through the first waist-shaped hole.

[0008] Preferably, the two transverse support members are connected by a Z-shaped connector, and a second oblong hole is provided on the Z-shaped connector. The transverse support members and the Z-shaped connector are detachably connected by bolts.

[0009] Preferably, the main connector is connected to the top of the duct via an extrusion assembly.

[0010] Preferably, the extrusion assembly includes a support fixedly mounted on the main connector, an adjusting rod rotatably mounted on the support, a handle fixedly mounted on the top of the adjusting rod, and an extrusion member fixedly mounted on the bottom of the adjusting rod. Rotating the handle rotates the extrusion member to the bottom of the outer edge of the duct, thus fixing the outer edge of the duct between the extrusion member and the main connector.

[0011] Preferably, a limiting nut is installed on the adjusting rod, and the gap between the extrusion member and the main connecting member is adjusted by the limiting nut.

[0012] In this invention, the horizontal support members can be directly connected or connected through Z-shaped connectors, which can adapt to different duct widths and have strong versatility.

[0013] The designed extrusion assembly allows for quick connection and disconnection of the bracket and ductwork, resulting in higher assembly and disassembly efficiency compared to existing bolt connections. The spacing between the extrusion assembly and the main connector can be adjusted using a limit nut to accommodate pipes of varying thicknesses, ensuring high connection reliability and versatility. Attached Figure Description

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

[0015] Figure 2 This is an enlarged schematic diagram of a partial structure of the present invention;

[0016] In the diagram: 1. Air duct; 2. Main connector; 3. Extrusion assembly; 4. Lateral support; 5. First oblong hole; 6. Z-shaped connector; 7. Second oblong hole; 8. Main lifting lug; 9. Auxiliary lifting lug; 10. Limiting component; 30. Support; 31. Adjusting rod; 32. Handle; 33. Extrusion component; 34. Limiting nut. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figure 1 and Figure 2The adjustable hoisting bracket for installing ventilation duct shafts, as shown, includes main connectors 2 detachably connected to both sides of the top of the duct 1. Specifically, the main connectors 2 are generally U-shaped, and in this embodiment, they are made of channel steel. In a preferred embodiment, a limiting member 10 is provided on one side of the main connector 2 to restrict the displacement of the main connector 2 along the width direction of the duct 1, allowing the two main connectors 2 to be installed symmetrically and improving the stability of the hoisting. Multiple through holes are provided at the top of the main connectors 2, allowing the use of transverse support plates to connect and reinforce the two main connectors 2, improving the stability of the structure.

[0019] The main connector 2 is connected to the top of the duct 1 via the extrusion assembly 3. The extrusion assembly 3 includes a support 30 fixedly mounted on the main connector 2 by fasteners, an adjusting rod 31 rotatably mounted on the support 30, a handle 32 fixedly mounted on the top of the adjusting rod 31, and an extrusion member 33 fixedly mounted on the bottom of the adjusting rod 31. The operator rotates the handle 32 to rotate the extrusion member 33 to the bottom of the outer edge of the duct 1, fixing the outer edge of the duct 1 between the extrusion member 33 and the main connector 2, thereby enabling the bracket to be quickly and detachably installed on the top of the duct 1.

[0020] In a preferred embodiment, a limiting nut 34 is installed on the adjusting rod 31. The gap between the extrusion member 33 and the main connecting member 2 is adjusted by turning the limiting nut 34. This gap is adapted to the outer wall thickness of the duct 1 to be installed, and can accommodate ducts 1 with different wall thicknesses. Of course, a rubber pad can also be fixedly installed on the top of the extrusion member 33 to improve the stability of the connection.

[0021] A transverse support 4 is fixedly installed on the inner side of the main connector 2, and the two transverse support 4s are detachably connected. When the width of the duct 1 is small, and the two transverse support 4s have overlapping areas, the two transverse support 4s are fitted together. A first oblong hole 5 is provided on the transverse support 4, and the two transverse support 4s are detachably connected by bolts passing through the first oblong hole 5, thereby connecting the two main connectors 2 into a whole. When the width of the duct 1 is large, and the two transverse support 4s do not have overlapping areas, the two transverse support 4s are connected by a Z-shaped connector 6. A second oblong hole 7 is provided on the Z-shaped connector 6, and bolts are used to detachably connect the transverse support 4s and the Z-shaped connector 6 by passing through the second oblong hole 7 and the first oblong hole 5, thereby connecting the two main connectors 2 into a whole.

[0022] The main lifting lug 8 is detachably installed on the top of the horizontal support 4 using nuts. Auxiliary lifting lugs 9 are detachably installed on the inner sides of both ends of the main connector 2 using nuts. During hoisting operations, different main lifting lugs 8, auxiliary lifting lugs 9, or a combination of both can be selected for hoisting based on the stability of the duct 1, thereby improving hoisting stability. A main lifting lug 8 is also fixedly installed on the top of the Z-shaped connector 6 to facilitate balancing of the duct 1.

[0023] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. An adjustable hoisting bracket for installing ventilation duct shafts, comprising main connecting parts detachably connected to both sides of the top of the duct, characterized in that: A transverse support is provided on the inner side of the main connector, and the two transverse supports are detachably connected. A main lifting lug is detachably installed on the transverse support. Auxiliary lifting lugs are detachably installed on the inner sides of both ends of the main connector. The two transverse supports are connected by a Z-shaped connector, and a second oblong hole is provided on the Z-shaped connector. The transverse support and the Z-shaped connector are detachably connected by bolts. The main connector is connected to the top of the duct through an extrusion assembly. The extrusion assembly includes a support fixedly installed on the main connector, an adjusting rod rotatably installed on the support, a handle fixedly installed on the top of the adjusting rod, and an extrusion member fixedly installed at the bottom of the adjusting rod. Rotating the handle rotates the extrusion member to the bottom of the outer edge of the duct, fixing the outer edge of the duct between the extrusion member and the main connector.

2. The adjustable hoisting bracket for installing ventilation duct shafts according to claim 1, characterized in that: The main connector is U-shaped overall.

3. The adjustable hoisting bracket for installing ventilation duct shafts according to claim 2, characterized in that: The two transverse support members are fitted together, and a first waist-shaped hole is provided on the transverse support member. The two transverse support members are detachably connected by bolts passing through the first waist-shaped hole.

4. The adjustable hoisting bracket for installing ventilation duct shafts according to claim 3, characterized in that: A limiting nut is installed on the adjusting rod, and the gap between the extrusion member and the main connecting member is adjusted by the limiting nut.

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