Early dismantling assembly for large-span plate

Abstract

The utility model discloses a long-span plate early dismantling assembly, which relates to the technical field of building construction, and comprises a support column, an internal thread cylinder is arranged in the support column in a sliding manner, a first screw rod is in threaded connection with the internal thread cylinder, and a support assembly is fixedly arranged on the first screw rod; a fixed box is fixedly arranged on the peripheral surface of the supporting column, a movable hole communicated with the fixed box is formed in the supporting column, a top block is slidably arranged in the fixed box, a second screw rod is in threaded connection with the fixed box, the second screw rod is rotatably connected with the top block, and an abutting plate is slidably arranged in the fixed box; a supporting assembly used for supporting the early-dismantling formwork can be lifted by rotating a second screw, an abutting plate can be driven to move to fix a connecting steel pipe used for connecting two supporting columns, when the supporting columns need to be dismantled, the second screw is twisted, the connecting steel pipe can be prevented from being loosened, meanwhile, an inner threaded barrel is made to descend, and therefore the early-dismantling formwork can be dismantled. Therefore, the supporting assembly moves downwards, and the supporting column can be moved away from the early-dismantling formwork conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an early disassembly component of a large-span plate. Background Art

[0002] At present, in building construction, when pouring concrete components such as floor slabs or beams on site, they are mostly assembled using formwork, traditional steel pipe supports, U-shaped top supports, etc. However, due to the technical limitations of the support system, the formwork needs to reach a concrete strength of more than 75% before it can be removed, and the concrete solidification time takes at least 20 days. Therefore, at least 3 sets of formwork and reinforcement steel pipes, beam and slab support materials are required.

[0003] In order to shorten the demolding time, construction units often take measures such as adding a certain amount of admixtures into the ready-mixed concrete to improve the early strength of the concrete and achieve early demolding, or using the early demolding support system construction method on some large-span slab supports to achieve early demolding of the formwork. The early demolding support system construction method is simple to operate for high-rise reinforced concrete structures, which can speed up the turnover of the formwork and save investment.

[0004] The traditional early dismantling technology realizes the early dismantling of the formwork by setting up support frames and early dismantling components at the bottom of the slab and the bottom of the beam respectively. During construction, steel pipes need to be fixed between the support columns to ensure stability. The connecting steel pipes between the existing support columns are usually fixed with bolts. When dismantling the early dismantling formwork, it is necessary to tighten the bolts to remove the connecting parts between the support columns first, and then climb to a high place to remove the fastening bolts of the support parts close to the ceiling and move the top of the support parts downward. Only then can the support columns be removed from under the floor formwork, which will make the removal of the early dismantling support columns more troublesome. Utility Model Content

[0005] The utility model aims to provide a large-span plate early disassembly assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-span plate early disassembly assembly, comprising a support column, an internally threaded barrel slidably provided inside the support column, a first screw being threadedly connected to the internal threaded barrel, and a support assembly being fixedly provided on the first screw; a fixing box being fixedly provided on the outer peripheral surface of the support column, a movable hole connected to the fixing box being provided on the support column, a top block being slidably provided inside the fixing box, a second screw being threadedly connected to the fixing box, the second screw being rotatably connected to the top block, and an abutment plate being slidably provided inside the fixing box.

[0007] Preferably, the support assembly includes an upper support plate fixedly arranged on the top of the first screw rod, and also includes a lower support plate rotatably arranged on the outer peripheral surface of the first screw rod.

[0008] Preferably, two push rods are fixedly provided on one side of the abutment plate away from the push block, and a rotating disk is fixedly provided on one end of the second screw rod away from the push block.

[0009] Preferably, two reinforcing plates are fixedly provided on the outer peripheral surface of the support column.

[0010] Preferably, a base is fixedly provided at one end of the support column away from the upper support plate.

[0011] In the above technical scheme, the utility model provides a large-span plate early-disassembly assembly, which has the following beneficial effects: the support assembly used to support the early-disassembly formwork can be lifted by rotating the second screw rod, and the abutment plate can be driven to move to fix the connecting steel pipe used to connect the two support columns. When the support column needs to be disassembled, twisting the second screw rod can prevent the connecting steel pipe from loosening while causing the internal threaded tube to drop, thereby moving the support assembly downward, making it convenient to remove the support column from under the early-disassembly formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0014] Figure 2 A schematic diagram of the structure of a reinforcement plate provided in an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of the structure of an internally threaded barrel provided in an embodiment of the utility model;

[0016] Figure 4 The embodiment of the utility model provides Figure 3 A magnified view of the structure at center.

[0017] Description of reference numerals:

[0018] 1. Support column; 2. Connecting steel pipe; 3. Base; 4. Upper support plate; 5. Lower support plate; 11. First screw; 12. Internal threaded tube; 13. Reinforcement plate; 14. Top block; 15. Movable hole; 16. Fixed box; 17. Second screw; 18. Rotating disk; 21. Abutment plate; 22. Top rod. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] See also Figure 1-4, a large-span plate early disassembly component, the technical solution proposed by the utility model includes a support column 1, an internal threaded tube 12 is slidably provided in the support column 1, the internal threaded tube 12 is connected with a first screw 11 through an internal thread, and a support component is fixedly provided on the first screw 11; a fixing box 16 is fixedly provided on the outer peripheral surface of the support column 1, and a movable hole 15 connected with the fixing box 16 is opened on the support column 1, a top block 14 is slidably provided in the fixing box 16, a second screw 17 is threadedly connected to the fixing box 16, the second screw 17 is rotatably connected to the top block 14, and an abutment plate 21 is slidably provided in the fixing box 16; the movable hole 15 is used for the sliding of the top block 14, and in the initial state, the lower end of the internal threaded tube 12 in the support column 1 is in the movable hole 15, and the top block 14 is completely in a fixed position In the fixed box 16, the abutment plate 21 is located between the inner wall of the fixed box 16 and the top block 14, and a threaded groove adapted to the first screw 11 is provided inside the internal threaded barrel 12. The end of the internal threaded barrel 12 away from the support assembly is set to a spherical shape, and the end of the top block 14 away from the second screw 17 is set to an inclined surface. The second screw 17 is threadedly connected to the inner wall of the fixed box 16 away from the end of the support column 1. The top block 14 will not rotate under the restriction of the inner wall of the fixed box 16. When the support column 1 needs to be installed, the top block 14 is moved into the movable hole 15 by rotating the second screw 17, and the internal threaded barrel 12 is lifted up by the inclined surface of the top block 14. When the flat surface of the upper end of the top block 14 abuts against the spherical end of the internal threaded barrel 12, the second screw 17 is stopped from rotating, and the support column 1 is supported. The support assembly is raised to a set height by rotating the first screw 11. When the connecting steel pipe 2 is needed to connect two adjacent support columns 1, the connecting steel pipe 2 is placed on the fixing boxes 16 of the two adjacent support columns 1, and the connecting steel pipe 2 is between each abutment plate 21 and the corresponding support column 1. At this time, the second screw 17 is rotated again, and the second screw 17 moves toward the direction close to the internal threaded tube 12 and pushes the abutment plate 21 to abut tightly against the connecting steel pipe 2. The abutment plate 21 is fixed by the self-locking ability of the second screw 17, so that the connecting steel pipe 2 connects the two support columns 1, increasing the stability of the support column 1. When the support column 1 needs to be removed, the second screw 17 is rotated to make the top block 14 return from the movable hole 15 to the fixing box 16. At this time, the second screw 1 7 moves to loosen the abutment plate 21, and at the same time, the top block 14 moves and separates from the internal threaded tube 12, and the internal threaded tube 12 drives the first screw rod 11 to move downward, so that the support assembly at the top of the first screw rod 11 no longer supports the early-disassembly formwork and there is sufficient space for the support column 1 to move away. When the support column 1 is used to support the late-disassembly formwork, the early-disassembly and late-disassembly support columns 1 can be connected through the abutment plate 21 and the connecting steel pipe 2, thereby increasing the stability of the late-disassembly support column 1. When the early-disassembly formwork needs to be removed, it is only necessary to appropriately rotate the second screw rod 17 on the late-disassembly formwork support column 1 to enable the corresponding abutment plate 21 to loosen the connecting steel pipe 2. At this time, it is convenient to remove the connecting steel pipe 2 and the internal threaded tube 12 on the late-disassembly support column 1 will not move downward.

[0021] Specifically, the support assembly includes an upper support plate 4 fixedly arranged on the top of the first screw rod 11, and also includes a lower support plate 5 rotatably arranged on the outer peripheral surface of the first screw rod 11; the floor formwork is supported by the upper support plate 4, and the supporting beam of the floor formwork is supported by the lower support plate 5. The rotatably arranged lower support plate 5 can be adjusted in angle to facilitate the support of the floor formwork.

[0022] Specifically, two push rods 22 are fixedly provided on the side of the abutment plate 21 away from the top block 14, and a rotating disk 18 is fixedly provided on the end of the second screw 17 away from the top block 14; a sliding groove for the abutment plate 21 to slide is opened on the fixed box 16, the abutment plate 21 is slidably connected with the second screw 17, and the two push rods 22 are on both sides of the second screw 17. Both push rods 22 penetrate the fixed box 16 and leak out from the end of the fixed box 16. The second screw 17 can be easily rotated through the rotating disk 18. When the rotating disk 18 rotates and drives the second screw 17 to move a certain distance, the rotating disk 18 abuts against the two push rods 22, thereby pushing the two push rods 22 to move in the direction close to the support column 1, thereby causing the abutment plate 21 to move and tightly abut the connecting steel pipe 2.

[0023] Specifically, two reinforcing plates 13 are fixedly provided on the outer circumference of the support column 1; the two reinforcing plates 13 are located on both sides of the movable hole 15, and the movable hole 15 of the support column 1 is reinforced by the two reinforcing plates 13, so as to prevent the strength of the support column 1 from being affected by the opening of the movable hole 15.

[0024] Specifically, a base 3 is fixedly provided at one end of the support column 1 away from the upper support plate 4; the base 3 increases the contact area between the support column 1 and the floor, thereby preventing the support column 1 from causing damage to the floor.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-span slab early disassembly assembly, comprising a support column (1), characterized in that: An internal threaded barrel (12) is slidably disposed inside the support column (1), the internal threaded barrel (12) is internally threadedly connected to a first screw rod (11), and a support assembly is fixedly disposed on the first screw rod (11); A fixing box (16) is fixedly arranged on the outer peripheral surface of the support column (1); a movable hole (15) communicating with the fixing box (16) is opened on the support column (1); a top block (14) is slidably arranged in the fixing box (16); a second screw rod (17) is threadedly connected to the fixing box (16); the second screw rod (17) is rotatably connected to the top block (14); and an abutment plate (21) is slidably arranged in the fixing box (16).

2. The long-span slab early disassembly assembly according to claim 1, characterized in that: The support assembly comprises an upper support plate (4) fixedly arranged on the top of the first screw rod (11), and also comprises a lower support plate (5) rotatably arranged on the outer peripheral surface of the first screw rod (11).

3. The long-span slab early disassembly assembly according to claim 2, characterized in that: Two push rods (22) are fixedly arranged on one side of the abutment plate (21) away from the push block (14), and a rotating disk (18) is fixedly arranged on one end of the second screw rod (17) away from the push block (14).

4. The long-span slab early disassembly assembly according to claim 3, characterized in that: Two reinforcing plates (13) are fixedly arranged on the outer peripheral surface of the support column (1).

5. The long-span slab early disassembly assembly according to claim 4, characterized in that: A base (3) is fixedly provided at one end of the support column (1) away from the upper support plate (4).

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