Device for preventing core mold from floating upwards

Abstract

The utility model relates to the technical field of hollow slabs, in particular to a mandrel floating prevention device which comprises square steel, a moving structure is fixedly installed on the top of the outer surface of the square steel, and two sets of floating prevention structures are fixedly installed on the outer surface of the square steel. When a hollow slab is poured, a core mold is fixed to a supporting piece, square steel is arranged over the core mold at the moment, a rotating handle is rotated to enable a bidirectional lead screw to rotate, two threaded blocks drive a connecting block to horizontally move on the outer surface of a limiting rod in the reverse direction, and therefore the two sets of anti-floating structures can be moved to the symmetrical position of the core mold; therefore, it can be ensured that the position of the core mold does not change during pouring, then by rotating the two sets of rotating nuts, the threaded rod rotates in the fixing plate and drives the two sets of round steel to move downwards, the threaded rod can make contact with the core mold, the situation that the threaded rod floats upwards in the pouring process can be avoided, and after pouring is completed, the rotating nuts are turned over, the threaded rod is slowly pulled out, and the pouring quality is improved. And the concrete loosening condition at the back pressure position is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hollow core slab technical field, concretely is a kind of prevent core mold floating device. BACKGROUND

[0002] Hollow core slab is a kind of efficient, economic, environmental protection building structural member, is widely used in building and bridge engineering. Its hollow design not only reduces the structure deadweight, also improves sound insulation, heat insulation performance, simultaneously, through reasonable design and construction technology, can satisfy various engineering needs. With the development of building industrialization, the application prospect of hollow core slab will be more extensive.

[0003] In the hollow core slab core mold pouring process of existing bridge construction, core mold is easy to float under the action of concrete, which can lead to a series of quality problems and construction difficulties such as geometric size deviation, strength reduction, surface defects, based on the existing technical deficiency, the utility model designs a kind of prevent core mold floating device. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a kind of prevent core mold floating device, with the advantage that prevent core mold floating when pouring.

[0005] The utility model provides following technical scheme: a kind of prevent core mold floating device, including square steel, mobile structure is fixedly installed on the top of the outer surface of square steel, two groups of anti-floating structure are fixedly installed on the outer surface of square steel;The mobile structure includes two support plates, two two-way screws are rotatably installed between the two support plates, two two-way screws outer surfaces are screw-mounted with threaded block, one end of two-way screw is fixedly installed with steering handle and is penetrated through support plate, the outer surface of two threaded blocks is fixedly installed with connecting block on both sides;Two groups of the anti-floating structure include limiting box and four fixed plates, limiting rod is fixedly installed in the inside of two limiting boxes, four connecting blocks are slidably connected with limiting rod, four connecting blocks are fixedly connected with four fixed plates, four fixed plates are screw-mounted with threaded rod in the inside, four threaded rods top are fixedly installed with rotating nut, four threaded rods bottom are fixedly installed with round steel.

[0006] As a preferred technical scheme of the utility model, four fixed plates top are fixedly installed with swivel ring, and four swivel rings are fixedly connected with fixed plate.

[0007] As a preferred technical scheme of the utility model, four rotating nuts bottom rotatably install another four swivel rings, and another four swivel rings bottom are fixedly installed with spring, four springs are fixedly connected with lower four swivel rings.

[0008] As a preferred technical scheme of the utility model, two ends of the square steel are provided with fixing holes, and support structures are fixedly installed inside the fixing holes on both sides.

[0009] As a preferred technical scheme of the utility model, the two support structures comprise fixing rods and fixing holes fixed by bolts, and hinged rods are hingedly installed inside the two fixing rods.

[0010] As a preferred technical scheme of the utility model, the two hinged rods are fixedly installed with sleeve rods at the bottom.

[0011] As a preferred technical scheme of the utility model, the two sleeve rods are slidably installed with telescopic rods inside.

[0012] As a preferred technical scheme of the utility model, the two telescopic rods are fixedly installed with backing plates at the bottom.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The anti-core mold floating device, through the moving structure and the anti-floating structure, when pouring the hollow slab, the core mold is fixed on the support, at this time, the square steel is arranged above the core mold, the bidirectional screw rod is rotated by rotating the handle, and the two threaded blocks drive the connecting blocks to move reversely and horizontally on the outer surface of the limiting rod, so that the two groups of anti-floating structures are moved to the symmetrical positions of the core mold, so that the position of the core mold is not changed during pouring, then the two rotating nuts are rotated, the threaded rod is rotated in the fixed plate, and the two groups of round steels are driven to move downward, so that they are in contact with the core mold, thereby avoiding the floating during pouring, after pouring is completed, the rotating nut is turned over, and the threaded rod is slowly pulled out, so that the loose concrete in the counter pressure position is avoided.

[0015] 2. The anti-core mold floating device, through the support structure, when the square steel is erected, the hinged rods on both sides are folded from the fixing rod until they are perpendicular to the ground, then the telescopic rods are pulled out from the sleeve rods to a suitable height according to the height of the hollow slab pouring mold, and the square steel is stably erected above the hollow slab after being fixed, so that the stability of the subsequent counter pressure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an appearance structure schematic view of the utility model;

[0017] Figure 2 It is a fixing hole structure schematic view of the utility model;

[0018] Figure 3 It is a moving structure schematic view of the utility model;

[0019] Figure 4The utility model discloses a dustproof structure schematic view.

[0020] Figure 5 The utility model discloses a support structure schematic view.

[0021] In the drawing: 1, square steel;2, moving structure;21, support plate;22, two -way screw rod;23, handle;24, threaded block;25, connecting block;3, anti -floating structure;31, limit box;32, limit rod;33, fixed plate;34, threaded rod;35, rotating nut;36, round steel;37, swivel ring;38, spring;4, fixed hole;5, support structure;51, fixed rod;52, articulated rod;53, sleeve rod;54, telescopic rod;55, batten. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 A core mold anti-floating device, including square steel 1, square steel 1 outer surface top fixed installation has moving structure 2, square steel 1's outer surface fixed installation has two groups of anti -floating structure 3;Moving structure 2 includes two support plates 21, two support plates 21 between rotatable installation has two -way screw rod 22, two two -way screw rod 22 outer surface screw installation has threaded block 24, two -way screw rod 22 passes through the one end fixed installation of support plate 21 and has handle 23, two threaded block 24's outer surface both sides fixed installation has connecting block 25;Two groups of anti -floating structure 3 include limit box 31 and four fixed plates 33, two limit box 31's inside fixed installation has limit rod 32, four connecting blocks 25 and limit rod 32 slidingly connect, four connecting blocks 25 and four fixed plates 33 fixed connection, four fixed plates 33's inside screw installation has threaded rod 34, four threaded rods 34 top fixed installation has rotating nut 35, four threaded rods 34's bottom fixed installation has round steel 36.

[0024] Please refer to Figures 3-4 Four fixed plates 33 top fixed installation has swivel ring 37, four swivel rings 37 and fixed plate 33 fixed connection. Four rotating nuts 35 bottom rotatable installation has another four swivel rings 37, another four swivel rings 37 bottom fixed installation has spring 38, four springs 38 and lower four swivel rings 37 fixed connection.

[0025] When rotating the rotating nut 35, since the upper rotating ring 37 is rotationally connected with the rotating nut 35, when the rotating nut 35 moves downward, the spring 38 is compressed downward, thus the impact energy can be absorbed, the vibration of the threaded rod and the connecting parts is reduced, and the stability of the device is improved.

[0026] Please refer to Figure 2 and Figure 5 Two ends of the square steel 1 are provided with fixing holes 4, and support structures 5 are fixedly installed in the inside of the two fixing holes 4. The two support structures 5 comprise fixing rods 51 fixedly connected with the fixing holes 4 through bolts, and hinged rods 52 are hingedly installed in the inside of the two fixing rods 51. The bottom of the two hinged rods 52 is fixedly installed with sleeve rods 53. The inside of the two sleeve rods 53 is slidably installed with telescopic rods 54. The bottom of the two telescopic rods 54 is fixedly installed with pad plates 55.

[0027] When the square steel 1 is erected, the two hinged rods 52 are folded from the inside of the fixing rods 51 until they are perpendicular to the ground, and then the telescopic rods 54 are pulled out from the sleeve rods 53 to a suitable height according to the height of the hollow slab casting mold, and after being fixed, the square steel 1 can be stably erected above the hollow slab, which can improve the stability of the subsequent counter pressure.

[0028] When the square steel 1 is erected, the two hinged rods 52 are folded from the inside of the fixing rods 51 until they are perpendicular to the ground, and then the telescopic rods 54 are pulled out from the sleeve rods 53 to a suitable height according to the height of the hollow slab casting mold, and after being fixed, the square steel 1 can be stably erected above the hollow slab, which can improve the stability of the subsequent counter pressure.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing the floating of a core print, comprising a square steel (1), characterized in that: The outer surface of the square steel (1) is fixedly provided with a moving structure (2), and the outer surface of the square steel (1) is fixedly provided with two groups of anti-floating structures (3). The moving structure (2) comprises two support plates (21), two bidirectional lead screws (22) are rotatably installed between the two support plates (21), two threaded blocks (24) are threadedly installed on the outer surfaces of the two bidirectional lead screws (22), one end of the bidirectional lead screw (22) penetrating through the support plate (21) is fixedly provided with a rotating handle (23), and the outer surfaces of the two threaded blocks (24) are fixedly provided with connecting blocks (25) on both sides. The two groups of anti-floating structures (3) comprise limiting boxes (31) and four fixed plates (33), limiting rods (32) are fixedly installed in the two limiting boxes (31), the four connecting blocks (25) are slidably connected with the limiting rods (32), the four connecting blocks (25) are fixedly connected with the four fixed plates (33), threaded rods (34) are threadedly installed in the four fixed plates (33), rotating nuts (35) are fixedly installed on the top of the four threaded rods (34), and round steels (36) are fixedly installed at the bottom of the four threaded rods (34).

2. A core print float prevention device according to claim 1, wherein: The four fixed plates (33) are fixedly provided with rotating rings (37) on the top, and the four rotating rings (37) are fixedly connected with the fixed plates (33).

3. A core print float prevention device according to claim 1, wherein: The bottom of the four rotating nuts (35) is rotatably provided with another four rotating rings (37), another four rotating rings (37) are fixedly provided with springs (38) at the bottom, and the four springs (38) are fixedly connected with the four rotating rings (37) below.

4. A core print float prevention device according to claim 1, wherein: The square steel (1) is provided with fixed holes (4) at both ends, and support structures (5) are fixedly installed in the fixed holes (4) on both sides.

5. A core print float prevention device according to claim 4, wherein: The two support structures (5) comprise fixed rods (51) and fixed holes (4) fixed by bolts, and hinged rods (52) are hingedly installed in the two fixed rods (51).

6. A core print float prevention device according to claim 5, wherein: The bottom of the two hinged rods (52) is fixedly provided with sleeve rods (53).

7. A core print float prevention device according to claim 6, wherein: The two sleeve rods (53) are slidably provided with telescopic rods (54) in the inside.

8. A core print float prevention device according to claim 7, wherein: The bottom of the two telescopic rods (54) is fixedly provided with a backing plate (55).

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