A ceiling frame integral hoisting structure and hoisting method

Abstract

This invention relates to an overall ceiling frame hoisting structure and method. The hoisting structure includes: a reinforced concrete layer, expansion bolts fixed to the reinforced concrete layer, threaded rods fixed to the bottom of the expansion bolts, a large hanger movably mounted at the bottom of the threaded rods, a main keel passing through the large hanger, and a secondary keel fixed to the bottom of the main keel. The hoisting method of this invention involves pre-cutting the keels to the specified dimensions according to the room size and assembling them directly on the ground, eliminating the need for individual fixing at the ceiling. Under the action of a servo motor and steel ropes, in conjunction with the main and secondary pulley groups, the entire ceiling frame is automatically raised. Finally, workers fix the ceiling frame and remove the main and secondary pulley groups. The entire process requires only one person, accelerating installation efficiency, saving labor costs, and reducing expenses. Furthermore, it ensures safe and civilized construction on-site, with unified processing in the semi-finished product processing area and direct on-site assembly.

Description

Technical Field

[0001] This invention belongs to the field of ceiling technology, specifically relating to an overall ceiling frame hoisting structure and hoisting method. Background Technology

[0002] A suspended ceiling refers to a type of decoration on the top of a living space. Simply put, it refers to the decoration of the ceiling and is an important part of interior decoration. The prerequisite for a suspended ceiling is to install a suspended ceiling frame (i.e., suspended ceiling keel) on the ceiling. The suspended ceiling keel is connected to the hangers and provides installation nodes for the surface panels required for the subsequent suspended ceiling. It is a key component in the suspended ceiling that connects the upper and lower parts.

[0003] Currently, the installation process for ceiling frames is almost identical: marking lines for leveling, installing hangers, installing edge joists, installing main joists, installing secondary joists and cross bracing joists, and installing ceiling panels. The entire process requires multiple workers to work together. To ensure the ceiling joists are installed horizontally, two workers need to stand on scaffolding to jointly fix them. In addition, one worker is needed to measure the room, cut the joists according to the measurements, and hand them to the two workers on the scaffolding. Therefore, the existing ceiling frame installation requires at least three workers. The installation process is too cumbersome, the installation efficiency is extremely low, and the labor input is high, resulting in wasted costs. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art by providing an integral ceiling frame hoisting structure and hoisting method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an integral ceiling frame hoisting structure, comprising:

[0006] The reinforced concrete layer, the expansion bolts fixed to the reinforced concrete layer, the threaded rods fixed to the bottom of the expansion bolts, the large hanger that can be raised and lowered and installed at the bottom of the threaded rod, the main keel passing through the large hanger, and the secondary keel fixed to the bottom of the main keel.

[0007] Optimally, it also includes a main pulley assembly fixed to the reinforced concrete layer, a secondary pulley assembly fixed to the bottom of the lead screw, a steel rope wound around the main pulley assembly and the secondary pulley assembly and fixed to the large hanging phase, and a drive unit connected to the steel rope and used to drive its extension and retraction.

[0008] Optimally, the main pulley assembly includes a fixed head fixed to the reinforced concrete layer, a diagonal brace fixed to the bottom of the fixed head, a fixed plate fixed to the bottom of the diagonal brace, a main pulley plate circumferentially fixed to the outer surface of the fixed plate, and a main pulley rotatably mounted on the main pulley plate.

[0009] Optimally, the auxiliary pulley assembly includes a hanging plate fixed to the bottom of the lead screw, a hook hanging on the hanging plate, an auxiliary pulley plate fixed to the bottom of the hook, and an auxiliary pulley rotatably mounted on the auxiliary pulley plate.

[0010] Ideally, the steel rope is wound around the main pulley and the auxiliary pulley.

[0011] Ideally, the main pulley and the auxiliary pulley have the same diameter.

[0012] Ideally, the drive unit is a servo motor.

[0013] A method for hoisting a ceiling frame as a whole includes the following steps:

[0014] Step 1: Assemble the main keel and secondary keel together on the ground to form the ceiling frame;

[0015] Step 2: Fix the main hangers to the main keel according to the specified spacing, and fix the screw rods to the main hangers. Leave 4-8 main hangers without fixing screw rods.

[0016] Step 3: Use infrared light to locate the corresponding position of the large hanging rod in the reinforced concrete layer, insert expansion bolts, fix the threaded rod to the bottom of the expansion bolts, and hang the auxiliary pulley group at the lower end.

[0017] Step 4: Fix the main pulley block to the reinforced concrete layer, and pass the steel rope from the servo motor through the main pulley and the auxiliary pulley, and fix it to the reserved 4-8 large hanging rods without screw rods installed;

[0018] Step 5: Start the servo motor to rotate forward and slowly lift the entire ceiling frame. Once it reaches the predetermined height, fix the threaded rods on the ceiling frame to the pre-installed expansion bolts.

[0019] Step 6: After the lead screw is fixed, the servo motor reverses to loosen the steel rope, and remove the main pulley group and auxiliary pulley group. Fix the reserved 4-8 large hooks on the lead screw in step 3.

[0020] Ideally, in step 1, the secondary keel is fixed to the bottom of the main keel.

[0021] Ideally, in step 3, the position of the screw fixed at the bottom of the expansion bolt corresponds to the position of the 4-8 large hanging rods reserved in step 2.

[0022] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] This invention provides a method for the overall hoisting of the ceiling frame. The keel is pre-cut to the specified dimensions according to the room size and assembled directly on the ground, eliminating the need for individual fixing at the ceiling. Driven by a servo motor and steel cables, and in conjunction with the main and auxiliary pulley systems, the entire ceiling frame is automatically raised. Finally, workers fix the ceiling frame and remove the main and auxiliary pulley systems. The entire process requires only one operator, accelerating installation efficiency, saving labor costs, and reducing expenses. Furthermore, it ensures safe and civilized construction at the site, with semi-finished products processed uniformly in the processing area and directly assembled on-site. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2 This is a top view of the present invention;

[0026] Figure 3 This is a partial structural diagram of the present invention;

[0027] Figure 4 This is a partial structural diagram of the present invention;

[0028] Figure 5 This is a schematic diagram of the auxiliary pulley assembly of the present invention;

[0029] Figure 6 This is a schematic diagram of the main pulley assembly of the present invention;

[0030] Figure 7 For the present invention Figure 2 A magnified view of a portion of the image;

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Reinforced concrete layer; 2. Expansion bolts; 3. Screw rods; 4. Auxiliary pulley block; 401. Hook; 402. Auxiliary pulley plate; 403. Auxiliary pulley; 404. Hanging plate; 5. Main pulley block; 501. Fixed head; 502. Diagonal brace; 503. Fixed plate; 504. Main pulley plate; 505. Main pulley; 6. Steel rope; 7. Main hanger; 8. Main keel; 9. Auxiliary keel; 10. Servo motor; Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0034] like Figure 1 , 2The diagram shows the overall hoisting structure of the ceiling frame of this invention. First, the main keel 8 and secondary keel 9 are assembled together on the ground to form the ceiling frame. Then, the entire ceiling frame is pulled to the ceiling to improve installation efficiency. It includes a reinforced concrete layer 1, expansion bolts 2, threaded rods 3, secondary pulley blocks 4, main pulley blocks 5, steel ropes 6, a large hanging frame 7, main keel 8, secondary keel 9, and a servo motor 10. The reinforced concrete layer 1 is constructed during construction. The reinforced concrete layer 1 refers to a composite material formed by adding steel mesh, steel plates, or fibers to the concrete to improve its mechanical properties; it forms the ceiling of the room. The main keel 8 and secondary keel 9 are cut according to the actual ceiling dimensions. Then, the secondary keel 9 is fixed to the bottom of the main keel 8, thus forming the ceiling frame on the ground. Subsequently, the ceiling frame only needs to be pulled up and fixed. Fix the large hanging brackets 7 at intervals to the main keel 8, and then fix the threaded rods 3 to the top of the large hanging brackets 7. The large hanging brackets 7 serve as connectors (not all large hanging brackets 7 are fixed with threaded rods 3; 4-8 large hanging brackets 7 are reserved without threaded rods 3. The reserved large hanging brackets 7 are used to temporarily fix the steel ropes 6 to facilitate the subsequent lifting of the ceiling frame. Only after the ceiling frame is lifted and fixed will the reserved 4-8 large hanging brackets 7 be fixed with threaded rods 3). According to the position of the large hanging brackets 7, fix the expansion bolts 2 at the corresponding positions in the reinforced concrete layer 1. When using them, you must first use an impact drill (hammer) to drill holes of the appropriate size in the reinforced concrete layer 1, then insert the bolts and expansion tubes into the holes, and tighten the nuts to make the bolts, expansion tubes, and mounting parts tighten into one unit with the reinforced concrete layer 1 (each large hanging bracket 7 corresponds to one expansion bolt 2). The lead screw 3 is fixed to the bottom of the expansion bolt 2 by means of a nut (not every expansion bolt 2 is fixed to the bottom of the lead screw 3; only the expansion bolt 2 corresponding to the reserved 4-8 large hangers 7 will be fixed with the lead screw 3, because the expansion bolt 2, lead screw 3 and large hanger 7 are one-to-one correspondence. The lead screw 3 of the reserved 4-8 large hangers 7 is fixed to the expansion bolt 2, and the lead screw 3 of the remaining large hangers 7 is fixed to the large hanger 7).

[0035] The auxiliary pulley block 4 is fixed to the bottom of the threaded rod 3 connected to the expansion bolt 2, meaning the auxiliary pulley block 4 corresponds to the 4-8 pre-installed large hanging rods 7. For example... Figure 5 The diagram shows the structure of the auxiliary pulley assembly 4, which includes a hook 401, auxiliary pulley plates 402, auxiliary pulleys 403, and a hanging plate 404. The hanging plate 404 is fixed to the bottom of the threaded rod 3 connected to the expansion bolt 2 (the hanging plate 404 is L-shaped, screwed onto the bottom of the threaded rod 3, and secured with a nut; a through hole is provided on the other side of the L-shaped hanging plate 404). The hook 401 is hooked into the through hole of the hanging plate 404. Each auxiliary pulley assembly 4 has two auxiliary pulley plates 402, which are fixed to the bottom of the hook 401. The auxiliary pulley 403 is rotatably mounted between the two auxiliary pulley plates 402 (a rotating shaft is installed between the two auxiliary pulley plates 402, and the auxiliary pulley 403 is fitted onto the rotating shaft).

[0036] The main pulley block 5 is fixed to the reinforced concrete layer 1, and it is used in conjunction with the auxiliary pulley block 4, such as... Figure 6 As shown, the main pulley block 5 includes a fixed head 501, diagonal braces 502, a fixed plate 503, a main pulley plate 504, and a main pulley 505. The fixed head 501 is fixed to the reinforced concrete layer 1 by a threaded rod 3 and expansion bolts 2. The fixed head 501 is screwed to the bottom of the threaded rod 3 and secured with a nut. There are three diagonal braces 502, fixed to the bottom of the fixed head 501, with an angle of 120 degrees between every two diagonal braces 502. The three diagonal braces 502 form an equilateral triangle shape, ensuring even force distribution and structural reliability when the ceiling frame is subsequently raised. The fixed plate 503 is fixed to the bottom of the diagonal braces 502 by screws. The main pulley plate 504 is circumferentially fixed to the outer surface of the fixed plate 503. The number of main pulley plates 504 is the same as the number of auxiliary pulley plates 402. The main pulley 505 is rotatably mounted on the main pulley plate 504 (the main pulley 505 and the main pulley plate 504 are mounted in the same way as the auxiliary pulley 403 and the auxiliary pulley plate 402).

[0037] There are multiple steel cables 6, each corresponding to a main pulley 505 and an auxiliary pulley 403. The steel cables 6 are wound around the main pulleys 505 and 403, with one end fixed to the reserved large hanging 7 and the other end fixed to the output shaft of the servo motor 10. The servo motor 10 can convert voltage signals into torque and speed to drive the controlled object, realizing precise control of the speed and position of the steel cables 6. (Under the drive of the servo motor 10, the steel cables 6 tighten or loosen, driving the ceiling frame to rise and fall through the main pulley group 5 and the auxiliary pulley group 4. In this embodiment, the main pulley 505 and the auxiliary pulley 403 have the same diameter to ensure the smooth raising and lowering of the ceiling frame. If the diameter of the main pulley 505 is larger than that of the auxiliary pulley 403, the ceiling frame will be raised and lowered.) If the diameter of the auxiliary pulley 403 is smaller than that of the auxiliary pulley 403, then under the drive of the servo motor 10, even if the main pulley 505 rotates slowly, the auxiliary pulley 403 will rotate at a relatively high speed, inevitably causing the ceiling frame to rise at a high speed. Since the ceiling frame is relatively heavy, there is a risk of it falling, resulting in a low safety factor. If the diameter of the main pulley 505 is smaller than that of the auxiliary pulley 403, then under the drive of the servo motor 10, even if the main pulley 505 rotates quickly, the auxiliary pulley 403 will rotate at a relatively slow speed, inevitably causing the ceiling frame to rise slowly. Although the safety factor is improved, the installation efficiency is reduced, and the steel cable 6 is also prone to slipping on the auxiliary pulley 403. When the ceiling frame is moved to the appropriate position, the threaded rod 3 on the main hanging 7 is fixed to the expansion bolt 2 on the reinforced concrete layer 1. Then the servo motor 10 reverses, the steel rope 6 is released, the main pulley group 5 and the auxiliary pulley group 4 are removed, and the threaded rod 3 connected to the expansion bolt 2 at the reserved position is fixed to the reserved main hanging 7.

[0038] The steps of the overall hoisting method for the ceiling frame of the present invention are as follows:

[0039] Step 1: Assemble the main keel 8 and the secondary keel 9 together on the ground to form the ceiling frame;

[0040] Specifically, first cut the main keel 8 and secondary keel 9 to the specified dimensions according to the room size, and then fix the secondary keel 9 to the bottom of the main keel 8 to form the ceiling frame.

[0041] Step 2: Fix the large hanging rod 7 to the main keel 8 according to the specified spacing, and fix the threaded rod 3 to the large hanging rod 7. Among them, 4-8 large hanging rods 7 are reserved without fixing the threaded rod 3. The reserved large hanging rods 7 are used to temporarily fix the steel rope 6, so as to facilitate the subsequent lifting of the ceiling frame. Only after the ceiling frame is lifted and fixed will the reserved 4-8 large hanging rods 7 be fixed with threaded rod 3.

[0042] Step 3: Using infrared light, locate the corresponding position of the main hanger 7 in the reinforced concrete layer 1, and insert expansion bolts 2. Fix the threaded rod 3 to the bottom of the expansion bolt 2, and hang the auxiliary pulley group 4 at the lower end. Not every expansion bolt 2 is fixed with the threaded rod 3. Only the expansion bolt 2 corresponding to the reserved 4-8 main hangers 7 will be fixed with the threaded rod 3. This is because the expansion bolt 2, threaded rod 3 and main hanger 7 are one-to-one. The threaded rod 3 of the reserved 4-8 main hangers 7 is fixed on the expansion bolt 2, and the threaded rod 3 of the remaining main hangers 7 is fixed on the main hanger 7.

[0043] Step 4: Fix the main pulley block 5 to the reinforced concrete layer 1, and pass the steel rope 6 from the servo motor 10 through the main pulley 505 and the auxiliary pulley 403, and fix it to the reserved 4-8 large hanging rods 7 without screw rods 3 installed.

[0044] Step 5: Start the servo motor 10 to rotate forward and slowly lift the entire ceiling frame. After reaching the predetermined height, fix the threaded rod 3 on the ceiling frame to the already inserted expansion bolt 2.

[0045] Step 6: After the lead screw 3 is fixed, the servo motor 10 reverses to loosen the steel rope 6 and remove the main pulley group 5 and the auxiliary pulley group 4. Then, fix the lead screw 3, which is connected to the expansion bolt 2 at the reserved position, to the reserved large hanging 7. Finally, the whole thing can be leveled by using an infrared level (because the ceiling frame is connected to the lead screw 3, and the lead screw 3 is fixed to the expansion bolt 2 by a nut, the height of the lead screw 3 can be finely adjusted by turning the nut to ensure the overall level of the ceiling frame).

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for hoisting a ceiling frame as a whole, characterized in that: It includes the following steps: Step 1: Assemble the main keel and secondary keel together on the ground to form the ceiling frame; Step 2: Fix the main hangers to the main keel according to the specified spacing, and fix the screw rods to the main hangers. Leave 4-8 main hangers without fixing screw rods. Step 3: Use infrared light to locate the corresponding position of the large hanging rod in the reinforced concrete layer, insert expansion bolts, fix the threaded rod to the bottom of the expansion bolts, and hang the auxiliary pulley group at the lower end. In step 3, the position of the screw fixed at the bottom of the expansion bolt corresponds to the position of the 4-8 large hanging rods reserved in step 2; Step 4: Fix the main pulley block to the reinforced concrete layer, and pass the steel rope from the servo motor through the main pulley and the auxiliary pulley, and fix it to the reserved 4-8 large hanging rods without screw rods installed; Step 5: Start the servo motor to rotate forward and slowly lift the entire ceiling frame. Once it reaches the predetermined height, fix the threaded rods on the ceiling frame to the pre-installed expansion bolts. Step 6: After the lead screw is fixed, the servo motor reverses to loosen the steel rope, and remove the main pulley group and auxiliary pulley group. Fix the reserved 4-8 large hooks on the lead screw in step 3.

2. The method for overall hoisting of a ceiling frame according to claim 1, characterized in that: In step 1, the secondary keel is fixed to the bottom of the main keel.

3. The method for overall hoisting of a ceiling frame according to claim 1, characterized in that: It adopts an overall ceiling frame hoisting structure, which includes a reinforced concrete layer (1), expansion bolts (2) fixed on the reinforced concrete layer (1), a threaded rod (3) fixed at the bottom of the expansion bolts (2), a large hanger (7) that can be raised and lowered at the bottom of the threaded rod (3), a main keel (8) passing through the large hanger (7), and a secondary keel (9) fixed at the bottom of the main keel (8).

4. The method for overall hoisting of a ceiling frame according to claim 3, characterized in that: The overall hoisting structure of the ceiling frame also includes a main pulley group (5) fixed on the reinforced concrete layer (1), a secondary pulley group (4) fixed at the bottom of the screw rod (3), a steel rope (6) wound around the main pulley group (5) and the secondary pulley group (4) and fixed to the large hanging (7), and a drive unit connected to the steel rope (6) and used to drive its extension and retraction.

5. The method for overall hoisting of a ceiling frame according to claim 4, characterized in that: The main pulley assembly (5) includes a fixed head (501) fixed on the reinforced concrete layer (1), a diagonal brace (502) fixed at the bottom of the fixed head (501), a fixed plate (503) fixed at the bottom of the diagonal brace (502), a main pulley plate (504) circumferentially fixed on the outer side of the fixed plate (503), and a main pulley (505) rotatably mounted on the main pulley plate (504).

6. The method for overall hoisting of a ceiling frame according to claim 5, characterized in that: The auxiliary pulley assembly (4) includes a hanging plate (404) fixed to the bottom of the lead screw (3), a hook (401) hanging on the hanging plate (404), an auxiliary pulley plate (402) fixed to the bottom of the hook (401), and an auxiliary pulley (403) rotatably mounted on the auxiliary pulley plate (402).

7. The method for overall hoisting of a ceiling frame according to claim 6, characterized in that: The steel rope (6) is wound around the main pulley (505) and the auxiliary pulley (403).

8. The method for overall hoisting of a ceiling frame according to claim 7, characterized in that: The main pulley (505) and the auxiliary pulley (403) have the same diameter.

9. A method for overall hoisting of a ceiling frame according to claim 4, characterized in that: The drive unit is a servo motor (10).

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