Installation system for integrally lifting high-altitude air pipe and hanging bracket through upper-layer floor slab hole

Abstract

The utility model discloses a mounting system for integrally lifting a high-altitude air pipe and a hanging bracket through an upper floor slab hole. The mounting system comprises the air pipe, the air pipe hanging bracket comprises a bottom joist, a coping beam and a harness cord hanging rod; the hard heat insulation cushion block is arranged between the air pipe and the air pipe hanging bracket; the hoisting mechanism is arranged on the upper floor slab; the upper floor slab is provided with a lifting hole corresponding to the lifting mechanism, the lifting mechanism perpendicularly penetrates through the lifting hole to be connected with an air pipe lifting belt sleeved with the middle of the air pipe in a hanging mode, a traction hole is formed in the position corresponding to the harness suspender, and the suspender traction rope pulls the top of the harness suspender to perpendicularly penetrate through the traction hole. The upper floor is used as a stress layer, the lifting equipment is erected on the floor, the hole with the proper diameter is formed in the floor, a hanging rod of the air pipe hanging bracket and a steel cable of the lifting mechanism can penetrate through the hole, the coping beam and the hard heat insulation cushion block are additionally arranged, the air pipe and the air pipe support are integrally stressed, the construction cost is reduced, and the construction efficiency is improved. The overall construction butt joint precision is improved, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-altitude pipeline installation, and in particular, it is an installation system for lifting high-altitude air ducts and hangers as a whole through holes in the upper floor slab. Background Technology

[0002] In the field of electromechanical installation for theater-type public buildings, there are often supply and return air ducts, smoke exhaust ducts, and other facilities located high above the auditorium and stage areas. The installation of duct systems in the auditorium and stage areas faces unique technical challenges: due to the dome-shaped structure of the building space and the limitations imposed by specialized equipment such as theater acoustic decoration and lighting trusses, traditional construction methods have significant drawbacks.

[0003] 1. Erecting full-span scaffolding: The scaffolding height is typically 18m-25m. As an operating platform, it presents problems such as large material turnover, long erection and dismantling cycles, and high rental costs. Especially for theater projects, due to frequent overlapping construction at different levels, repeated dismantling and modification of scaffolding can easily lead to project delays, and the safety risks of high-altitude construction are prominent.

[0004] 2. Mechanical hoisting: Use scissor lifts or articulated boom lifts for segmented hoisting, with a single segment length ≤ 3m. However, due to the theater's irregular structure, the following problems exist: poor accuracy of segmented high-altitude docking, easy flange misalignment; low efficiency of insulation work, with the high-altitude insulation efficiency at the segmented connection point being only 35% of that at ground level.

[0005] Third, conventional construction methods also have stability issues with pipe hanger systems. Pipe hangers are generally equipped with bottom crossbeams and connected to the bottom of the ceiling through hangers. However, during duct installation, the pipe hanger as a whole is prone to slippage, which also disturbs the hangers, making it impossible for them to always be in a vertical state. Moreover, acoustic testing is required after the theater is completed, and the width of the maintenance passage is usually <0.6m, making maintenance and adjustment difficult. Therefore, it is required that the duct installation be completed in one go.

[0006] The industry urgently needs a system that can adapt to the special structure of theaters and achieve safe, economical and efficient installation of high-altitude ducts. Utility Model Content

[0007] The purpose of this utility model is to provide an installation system for lifting high-altitude air ducts and hangers as a whole through holes in the upper floor slab. It aims to solve the technical problems of large material turnover, long erection and dismantling cycles, high rental costs, and prominent safety risks in high-altitude construction caused by using full-span scaffolding; it also aims to solve the problems of poor docking accuracy and low efficiency of insulation work when using aerial work vehicles for segmented installation; and it also aims to solve the problem of insufficient stability of air duct hangers during air duct installation.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An installation system for lifting high-altitude air ducts and hangers as a whole through holes in the upper floor slab includes:

[0010] Air ducts are located below the upper floor slab;

[0011] The duct hanger assembly is located below the upper floor slab and is spaced around the outside of the duct along its length. Each duct hanger is located in the same vertical plane and includes a bottom support beam, a top pressure beam, and a threaded hanger. The bottom support beam and the top pressure beam are directly opposite each other. The threaded hangers are located on the left and right sides of the duct and are anchored and tightened to the ends of the bottom support beam and the top pressure beam on the corresponding sides in sequence.

[0012] Rigid insulation pads are installed between the air duct and the bottom support beam, and between the air duct and the top beam;

[0013] The lifting mechanism is installed on the top surface of the upper floor slab;

[0014] Guide ropes, including duct slings and boom traction ropes;

[0015] The upper floor slab has lifting holes directly opposite the position of the lifting mechanism. The lifting mechanism passes vertically through the lifting holes and is connected to the duct sling sleeve in the middle of the duct. There are traction holes directly opposite the position of the through-wire rod. The traction rope of the through-wire rod pulls the top of the through-wire rod vertically through the traction hole.

[0016] The duct is formed by connecting duct sections with flanges. Every three adjacent duct sections form a lifting unit, which consists of one middle duct section and two end duct sections. The lifting hole is opened in the center of the upper floor slab corresponding to the position of the middle duct section, and the traction hole is opened on the left and right sides of the upper floor slab corresponding to the position of the end duct section.

[0017] The length of the rigid insulation pad is the same as the cross-sectional width of the duct, and the width of the rigid insulation pad is the same as the width of the connected bottom support beam and top pressure beam.

[0018] The bottom support beam and the top beam are made of channel steel with the same dimensions and the same opening orientation. The channel steel includes an upper plate, a web plate and a lower plate. The bottom support beam includes an upper plate, a web plate and a lower plate. The top beam includes an upper plate, a web plate and a lower plate. A lower rigid insulation pad is placed between the upper plate of the bottom support beam and the bottom surface of the duct, and an upper rigid insulation pad is placed between the lower plate of the top beam and the top surface of the duct.

[0019] The upper and lower plates have corresponding hanging rod holes. The threaded hanging rod passes through the hanging rod holes of the lower plate, upper plate, and lower plate of the bottom support beam in sequence. The threaded hanging rod is anchored to the bottom surface of the lower plate of the bottom support beam by the bottom nut, and the threaded hanging rod is anchored to the top surface of the upper plate of the top pressure beam by the top nut.

[0020] One end of the traction rope is fixedly connected to the top of the through-wire spool, and the other end of the traction rope passes through the traction hole and is stacked or tightened on the upper floor slab.

[0021] The duct is raised to the predetermined position, and the top of the threaded rod extends at least 50mm above the top surface of the upper floor slab. The top of the threaded rod passes through the steel pad and is anchored to the top surface of the upper floor slab with double nuts.

[0022] The lifting mechanism includes a floor slab hanger and a lifting device. The floor slab hanger is installed on the upper floor slab. The lifting device includes a hand-operated hoist and a wire rope. The top of the hand-operated hoist is fixedly connected to the floor slab hanger, and the bottom of the hand-operated hoist is connected to the top of the wire rope. The bottom of the wire rope is connected to the duct sling through a rope clamp.

[0023] The floor slab hanger includes a base frame, two side columns, and a top hanging beam installed in the same vertical plane. The vertical plane of the floor slab hanger is parallel to that of the duct hanger, and the top of the hand-operated hoist is attached to the center of the top hanging beam.

[0024] Compared with the prior art, this utility model has the following features and beneficial effects:

[0025] This utility model utilizes the upper horizontal concrete floor slab above the stage and audience seating as the load-bearing layer, and the lifting equipment is erected on this floor slab. Holes of appropriate diameter are made in the floor slab so that the suspension rods of the duct hanger and the steel cables of the lifting mechanism can pass through them. Then, steel pads are used to fix the suspension rods of the duct to the floor slab.

[0026] This invention avoids the use of large machinery and the erection of full-span scaffolding, reducing construction costs; the connection of air ducts is completed on the ground, avoiding high-altitude work and improving construction safety. All procedures, including air duct installation, air outlet installation, and pipe insulation, are completed in one go, improving the overall construction precision and increasing construction efficiency.

[0027] This invention adds a top pressure beam to the top of the duct, making the duct hanger and the duct an inseparable whole, preventing the duct from sliding on the duct hanger during lifting. A rigid heat-insulating pad is also set between the duct and the hanger to prevent damage to the duct. At the same time, the setting of the traction rope allows the hanger rod to pass through the traction hole, ensuring that the hanger rod of the flushing duct hanger is always in a vertical state and maintaining installation accuracy.

[0028] This invention utilizes the length of the suspension passing through the traction hole to measure the distance between the upper surface of the duct or the top surface of the capping beam and the upper floor slab to control the levelness of the duct. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Figure 1This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 yes Figure 1 Enlarged view of a portion of the lifting mechanism in the upper part.

[0032] Figure 3 yes Figure 2 Enlarged view of the lower part of the duct hanger.

[0033] Figure 4 This is a plan view showing the location of the openings in the upper floor slab.

[0034] Figure 5 This is a schematic diagram showing the location of the openings in the upper floor slab and the installation plan of the duct hangers and lifting mechanisms.

[0035] Figure 6 This is a schematic diagram showing the duct being lifted to the predetermined position and anchored to the upper floor slab with a threaded rod, steel pad, and double nuts.

[0036] Figure 7 yes Figure 6 A diagram showing the removal of the wire rope clamps and the detachment of the duct sling.

[0037] Figure 8 yes Figure 7 A side view structural diagram.

[0038] Figure label:

[0039] 1 - Upper floor slab, 11 - Lifting hole, 12 - Traction hole;

[0040] 2 - Ductwork, 21 - Mid-section ductwork, 22 - End-section ductwork;

[0041] 3 - Duct hanger; 31 - Bottom support beam; 311 - Upper plate of bottom support beam; 312 - Web of bottom support beam; 313 - Lower plate of bottom support beam; 32 - Top beam; 321 - Upper plate of top beam; 322 - Web of top beam; 323 - Lower plate of top beam; 33 - Through thread hanger.

[0042] 4 - Rigid insulation pad, 41 - Lower rigid insulation pad, 42 - Upper rigid insulation pad;

[0043] 5 - Lifting mechanism, 51 - Floor slab hanger, 511 - Base frame, 512 - Column, 513 - Top lifting beam, 52 - Lifting device, 521 - Hand chain hoist, 522 - Wire rope;

[0044] 6 - Duct sling, 7 - Lifting rod traction rope, 8 - Lifting rod hole, 9 - Bottom nut, 10 - Top nut, 20 - Steel pad, 30 - Double nut. Detailed Implementation

[0045] See the examples. Figure 1-5 As shown, an installation system for lifting high-altitude air ducts and hangers as a whole through holes in the upper floor slab includes:

[0046] Air duct 2 is located below the upper floor slab 1.

[0047] The duct hanger assembly is located below the upper floor slab 1 and is spaced around the outside of the duct 2 along its length. Each duct hanger 3 is located in the same vertical plane and includes a bottom support beam 31, a top pressure beam 32 and a threaded hanger 33. The bottom support beam 31 and the top pressure beam 32 are directly opposite each other. The threaded hangers 33 are located on the left and right sides of the duct 2 and are anchored and tightened to the ends of the bottom support beam 31 and the top pressure beam 32 on the corresponding sides.

[0048] See Figure 3 and Figure 8 As shown, rigid insulation pads 4 are installed between the duct 2 and the bottom support beam 31, and between the duct 2 and the top beam 32. The length of the rigid insulation pad 4 is the same as the cross-sectional width of the duct 2, and the width of the rigid insulation pad 4 is the same as the width of the connected bottom support beam 31 and top beam 32. The bottom support beam 31 and the top beam 32 are made of channel steel with the same dimensions and the same opening orientation. The channel steel includes an upper plate, a web plate, and a lower plate. The bottom support beam 31 includes an upper plate 311, a web plate 312, and a lower plate 313. The top beam 32 includes an upper plate 321, a web plate 322, and a lower plate 323. A lower rigid insulation pad 41 is placed between the upper plate 311 of the bottom support beam and the bottom surface of the duct 2, and an upper rigid insulation pad 42 is placed between the lower plate 323 of the top beam and the top surface of the duct 2.

[0049] See Figure 3 As shown, the upper plate and the lower plate have corresponding hanging rod holes 8. The through-wire hanging rod 33 passes through the hanging rod holes 8 of the lower plate of the bottom support beam, the upper plate of the bottom support beam, the lower plate of the bottom support beam, and the upper plate of the bottom support beam in sequence. The through-wire hanging rod 33 is anchored to the bottom surface of the lower plate of the bottom support beam 313 by the bottom nut 9, and the through-wire hanging rod 33 is anchored to the top surface of the upper plate of the top beam 321 by the top nut 10.

[0050] See Figure 4-5 As shown, the upper floor slab 1 has a lifting hole 11 directly opposite the position of the lifting mechanism 5. The lifting mechanism 5 passes vertically through the lifting hole 11 and is connected to the duct sling 6 sleeved in the middle of the duct 2. The position of the through wire rod 33 has a traction hole 12 directly opposite the position of the through wire rod 33. The traction rope 7 pulls the top of the through wire rod 33 vertically through the traction hole 12.

[0051] The guide ropes include the duct sling 6 and the boom traction rope 7. One end of the boom traction rope 7 is fixedly connected to the top of the through-wire boom 33, and the other end of the boom traction rope 7 passes through the traction hole 12 and is stacked or tightened on the upper floor slab 1.

[0052] The duct 2 is formed by connecting duct sections through flanges. Every three adjacent duct sections form a lifting unit, which consists of a middle duct 21 and two end duct sections 22. The lifting hole 11 is opened in the center of the upper floor slab 1 corresponding to the position of the middle duct 21, and the traction hole 12 is opened on the left and right sides of the upper floor slab 1 corresponding to the position of the end duct section 22.

[0053] See Figure 2 As shown, the lifting mechanism 5 is installed on the top surface of the upper floor slab 1. The lifting mechanism 5 includes a floor slab hanger 51 and a lifting device 52. The floor slab hanger 51 is installed on the upper floor slab 1. The lifting device 52 includes a hand-operated hoist 521 and a wire rope 522. The top end of the hand-operated hoist 521 is fixedly connected to the floor slab hanger 51, and the bottom end of the hand-operated hoist 521 is connected to the top end of the wire rope 522. The bottom end of the wire rope 522 is connected to the duct sling 6 through a rope clamp. The floor slab hanger 51 includes a base frame 511, two side columns 512, and a top lifting beam 513 arranged in the same vertical plane. The floor slab hanger 51 is parallel to the vertical plane of the duct hanger 3, and the top end of the hand-operated hoist 512 is hooked to the center of the top lifting beam 513.

[0054] See Figure 6-8 As shown, the duct 2 is raised to the predetermined position, and the top of the threaded rod 33 extends at least 50mm above the top surface of the upper floor slab 1. The top of the threaded rod 33 passes through the steel pad 20 and is anchored to the top surface of the upper floor slab 1 through the double nuts 30.

[0055] The construction process of this utility model is as follows:

[0056] Step 1, Assemble duct 2;

[0057] A temporary operating frame is erected on the ground along the route and direction of the ventilation duct using scaffolding pipes. On the operating frame, the components of a duct system, such as straight pipe sections, elbows, tees, valves, and air outlets, are assembled into a complete duct, and insulation, moisture-proof, and protective layers are applied.

[0058] Step 2, install duct hanger 3;

[0059] Install duct hangers 3 on duct 2 at intervals of 3m to 4m as specified in the construction and acceptance specifications. The structure of the duct hangers 3 differs from conventional installation methods. A rigid insulation pad 4 is added to both the top and bottom of duct 2, and a top beam 32, which cooperates with the bottom support beam 31, is also added. The bottom support beam 31 is fixed to the bottom of duct 2 using bottom nuts 9, top nuts 10, and threaded rods 33, while the top beam 32 is fixed to the top of duct 2, connecting duct 2 and duct hangers 3 as a single unit. This is to prevent slippage and falling of duct 2 during vertical lifting. The length of the threaded rods 33 is calculated based on the installation height of duct 2, ensuring that after duct 2 is hoisted into place, the end of the threaded rod 33 extends at least 50mm above the top surface of the upper floor slab 1. The top beam 32 and the through-wire hanger 33 work together. The through-wire hanger 33 acts as a tie rod, which can fix the top beam 32 to the top of the air duct 2. Conversely, under the combined action of the top beam 32 and the bottom support beam 31, the through-wire hanger 33 can remain vertical when pulled, which is conducive to its smooth passage through the upper traction hole 12.

[0060] Step 3: Make an opening in the upper floor slab 1;

[0061] Plan the positions of the lifting devices at intervals of 8m to 10m, with those near bends. Draw a diagram showing the center positions of the through-wire rod 33 and the wire rope 522 in the lifting device 52. Drill holes in the upper floor slab 1 with a water drill according to the positions shown in the diagram. The diameter of the traction hole 12 is 20mm, and the diameter of the lifting hole 11 is 100mm. The size of the lifting hole 11 should be large enough to allow the hook connecting the bottom of the hand chain hoist 521 to the wire rope 522 to pass through the hole.

[0062] Step 4: Erect the lifting mechanism 5;

[0063] A movable floor slab hoist is erected on the upper floor slab 1, directly opposite the lifting hole 11. A hand-operated hoist 521 is used for lifting. The hook of the hand-operated hoist 521 is lowered to the vicinity of the air duct 2 on the ground. A traction rope 7, which can be made of hemp rope, is hung down from each traction hole 12. After being lowered to the vicinity of the ground, the end of the rope is tied to the highest point of the through-wire traction rod 33 to guide the through-wire traction rod 33 smoothly through the traction hole 12.

[0064] Step 5: Use the dedicated duct sling 6 to sling over the bottom of duct 2, and hang it on the hook with steel wire rope 522. Pull all the hand chain hoists 521 simultaneously to move the entire duct 2 200mm away from the temporary operating frame, and then let it stand for 1 hour. Observe the working condition of the ropes at all points, and check for any deformation or detachment.

[0065] Step Six: After confirming that all ropes are safe, reliable, and free from deformation, all chain hoists 521 are pulled simultaneously to hoist the duct 2 to the predetermined height. When approaching the predetermined height, the position of the through-wire hoist 33 is adjusted using the hoisting rope 7 to ensure it accurately passes through the traction hole 12. The horizontality of the duct 2 is controlled by measuring the distance between the upper surface of the duct 2 or the top beam 32 and the upper floor slab, using the length of the through-wire hoist 33 passing through the traction hole 12.

[0066] Step 7, see Figure 6 As shown, remove the traction rope 7 of the suspension rod, put a steel pad 20 with a size of 50mm×50mm×5mm on each through-wire suspension rod 33, set double nuts 30 on the steel pad 20, press the steel pad 20 tightly on the upper floor slab, and cut off the excess through-wire suspension rod 33.

[0067] Step 8, see Figure 7-8 As shown, after removing the rope clamp at the lower end of the wire rope 522, the duct sling 6 will automatically detach from the duct 2. This completes the overall hoisting of one system duct.

Claims

1. A system for installing a high-rise air duct and hanger as a unit through a floor opening, characterized in that, The utility model relates to a kind of wind pipe lifting device, including: Wind pipe (2) is located below upper floor (1); Wind pipe hanger group is located below upper floor (1), and is enclosed outside wind pipe (2) along the length direction of wind pipe (2) at intervals, each wind pipe hanger (3) is located in the same vertical plane, including bottom support beam (31), compression top beam (32) and wire hanger (33), bottom support beam (31) is vertically opposite with compression top beam (32), wire hanger (33) is separately arranged in left and right sides of wind pipe (2) and is sequentially anchored and tensioned with the end of corresponding side's bottom support beam (31) and compression top beam (32); Hard thermal pad (4) is arranged between wind pipe (2) and bottom support beam (31) and wind pipe (2) and compression top beam (32); Hoisting mechanism (5) is arranged on the top surface of upper floor (1); Rope, including wind pipe sling (6) and hanger rope (7); Upper floor (1) is vertically opposite and opened with hoisting hole (11) corresponding hoisting mechanism (5) position, hoisting mechanism (5) vertically passes through hoisting hole (11) and is hung with wind pipe sling (6) sleeved in the middle of wind pipe (2), is vertically opposite and opened with traction hole (12) corresponding wire hanger (33) position respectively, and the top of hanger rope (7) traction wire hanger (33) passes through traction hole (12) in upper floor (1) and is stacked or tensioned.

2. The high-rise wind pipe and hanger integrated lifting installation system through the upper floor hole according to claim 1, characterized in that: Wind pipe (2) is formed by flange connection of wind pipe section, every three wind pipe sections are a lifting unit, respectively, middle section wind pipe (21) and two end section wind pipe (22), hoisting hole (11) is arranged in the center of upper floor (1) corresponding the position of middle section wind pipe (21), and traction hole (12) is arranged in the left and right sides of upper floor (1) corresponding the position of end section wind pipe (22).

3. The high-rise wind pipe and hanger integrated lifting installation system through the upper floor hole according to claim 1, characterized in that: The length of hard thermal pad (4) is same with the cross section width of wind pipe (2), and the width of hard thermal pad (4) is same with the width of connected bottom support beam (31) and compression top beam (32).

4. The high air duct and hanger system of claim 1 or 3, wherein: Bottom support beam (31) and compression top beam (32) adopt channel steel with same size and consistent opening direction, and the channel steel includes upper plate, web and lower plate, bottom support beam (31) includes bottom support beam upper plate (311), bottom support beam web (312) and bottom support beam lower plate (313), and compression top beam (32) includes compression top beam upper plate (321), compression top beam web (322) and compression top beam lower plate (323), and lower hard thermal pad (41) is arranged between bottom support beam upper plate (311) and the bottom surface of wind pipe (2), and upper hard thermal pad (42) is arranged between compression top beam lower plate (323) and the top surface of wind pipe (2).

5. The high-rise vent and hanger system of claim 4, wherein: Upper plate and lower plate are opened with hanger hole (8) corresponding in upper and lower, and wire hanger (33) sequentially passes through hanger hole (8) of bottom support beam lower plate, bottom support beam upper plate, bottom support beam lower plate and bottom support beam upper plate, and wire hanger (33) is anchored in the bottom surface of bottom support beam lower plate (313) by bottom nut (9), and wire hanger (33) is anchored in the top surface of compression top beam upper plate (321) by top nut (10).

6. The high-rise wind pipe and hanger integrated lifting installation system through the upper floor hole according to claim 1 or 5, characterized in that: One end of hanger rope (7) is fixedly connected with the top end of wire hanger (33), and the other end of hanger rope (7) passes through traction hole (12) and is stacked or tensioned in upper floor (1).

7. The high-rise vent and hanger system of claim 6, wherein: The duct (2) is lifted to a predetermined position, the top end of the wire rope hoist (33) exceeds the top surface of the upper floor (1) by not less than 50 mm, the top end of the wire rope hoist (33) passes through the steel backing plate (20) and is anchored to the top surface of the upper floor (1) through the double nut (30).

8. The high-rise wind pipe and hanger integrated installation system through the upper floor hole according to claim 1, characterized in that: The hoisting mechanism (5) comprises a floor hanger (51) and a hoisting device (52), the floor hanger (51) is arranged on the upper floor (1), the hoisting device (52) comprises a hand chain block (521) and a steel wire rope (522), the top end of the hand chain block (521) is fixedly connected with the floor hanger (51), the bottom end of the hand chain block (521) is connected with the top end of the steel wire rope (522), and the bottom end of the steel wire rope (522) is connected with the duct sling (6) through a rope clamp.

9. The high-rise wind pipe and hanger integrated installation system through the upper floor hole according to claim 8, characterized in that: The floor hanger (51) comprises a bottom frame (511), two side columns (512) and a top hanger beam (513) arranged in the same vertical plane, the floor hanger (51) is parallel to the vertical plane of the duct hanger (3), and the top end of the hand chain block (521) is hung on the center of the top hanger beam (513).

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