Slab and strip slurry leakage prevention device in composite floor slab construction

Abstract

The utility model discloses a slab strip grout leakage prevention device in composite floor slab construction, which comprises a template and a plurality of water stop screw rods arranged on the template, the top of each water stop screw rod is connected with a pressing assembly, the pressing assembly comprises a sleeve and two symmetrically arranged twisted steel bars welded on the sleeve, the top threads of the water stop screw rods penetrate through the sleeve, and the top threads of the water stop screw rods penetrate through the sleeve. The two prefabricated composite floor slabs are clamped between the formwork and the twisted steel, the water stop screw is arranged between the two prefabricated composite floor slabs, two sets of symmetrically-arranged sliding grooves are formed in the top face of the formwork, L-shaped push plates are slidably connected into the sliding grooves, and L-shaped sealing strips are arranged on the end faces, close to the prefabricated composite floor slabs, of the L-shaped push plates. The distance between every two opposite L-shaped push plates is adjusted through an adjusting assembly. The L-shaped sealing strip is pushed to be tightly attached to the prefabricated composite floor slab through the adjusting assembly, and the problem that the construction quality is affected due to the fact that concrete leaks slurry through a gap between the formwork and the placed composite slab is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially relates to a kind of board zone anti-slurry leakage devices in composite floor construction. BACKGROUND

[0002] When the fabricated composite floor is constructed, after the bottom formwork of floor is set up, hoist and place the composite floor, the sponge rubber strip is usually pasted at the place where the composite floor is placed, the composite floor and the cast-in-place layer are pressed on the sponge rubber strip by their own weight, so that there is no gap between the composite floor and the bottom formwork, and the leakage of concrete from the gap during the pouring of cast-in-place layer and slab concrete is avoided. However, due to the quality of formwork and the number of turnovers, it is impossible to ensure that the formwork is completely flat during the assembly of formwork, which leads to the fact that the place pasted with sponge rubber strip cannot be completely combined with the placed composite floor, resulting in the leakage of concrete during the pouring of concrete. After the formwork is removed, the appearance quality of the bottom concrete is seriously affected, and if the leakage is serious, honeycomb and rough surface may occur. SUMMARY

[0003] The utility model aims at providing a kind of board zone anti-slurry leakage devices in composite floor construction, to solve the above problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model relates to a kind of board zone anti-slurry leakage devices in composite floor construction, including formwork and a plurality of water stop screw rods installed on the formwork, the top of the water stop screw rod is connected with down-pressing assembly, the down-pressing assembly includes sleeve and two symmetrical screw steels welded on the sleeve, the top of the water stop screw rod is screwed through the sleeve, the formwork and the screw steel sandwich two prefabricated composite floors, the water stop screw rod is arranged between the two prefabricated composite floors, two groups of symmetrical sliding grooves are formed on the top surface of the formwork, L-shaped push plate is slidably connected in the sliding groove, L-shaped sealing strip is arranged on the end face of the L-shaped push plate close to the prefabricated composite floor, and the distance between the two L-shaped push plates is adjusted by adjusting assembly.

[0006] Further, the water stop screw rod includes two symmetrical taper connecting mothers and a middle threaded rod connected between the two taper connecting mothers, a water stop steel sheet is connected to the middle threaded rod, an external screw rod is threadedly connected to the other end of the taper connecting mother, the other end of the two external screw rods penetrates the formwork and the sleeve respectively, a mountain-shaped clamp is installed on the external screw rod, a nut is arranged on the outside of the mountain-shaped clamp, and the nut is threadedly connected to the external screw rod.

[0007] Further, the outer net size of the water stop steel sheet rod is 30mm, and the thickness is 5mm.

[0008] Further, the water stop steel sheet is provided with a fixing hole, the diameter of the fixing hole is 2mm larger than the diameter of the middle threaded rod, and the water stop steel sheet is welded on the middle threaded rod.

[0009] Further, the adjusting assembly comprises two symmetrically arranged adjusting lead screws, a rotating sleeve is threadedly connected between the proximal ends of the two adjusting lead screws, the other ends of the adjusting lead screws are rotatably connected to the outer wall of the L-shaped push plate through bearings, and the bearings and the clamping grooves are hexagonal in shape.

[0010] Further, the L-shaped push plate is provided with an inclined surface at the top.

[0011] Compared with the prior art, the present application has the beneficial technical effects that:

[0012] The present application can prevent concrete from leaking through the gap between the formwork and the placed composite floor slab, thereby preventing the construction quality from being affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below in combination with the drawings.

[0014] Figure 1 It is a front view of the anti-leakage device for the composite floor slab construction.

[0015] Figure 2 It is a front view of the anti-leakage device for the composite floor slab construction. Figure 1 It is an enlarged view of the middle A.

[0016] Figure 3 It is a front view of the anti-leakage device for the composite floor slab construction.

[0017] Figure 4 It is a schematic view of the clamping groove.

[0018] Reference signs: 1, formwork; 2, water stop screw; 3, sleeve; 4, threaded steel bar; 5, prefabricated composite floor slab; 6, sliding groove; 7, L-shaped push plate; 8, L-shaped sealing strip; 9, adjusting lead screw; 10, rotating sleeve; 11, bearing; 12, clamping groove. DETAILED DESCRIPTION

[0019] As Figures 1-4As shown, a kind of plate belt anti-leakage grout device in composite floor construction, including formwork 1 and install several water stop screw 2 on the formwork 1, the top of the water stop screw 2 is connected with down pressure assembly, the down pressure assembly includes sleeve 3 and two symmetrical screw reinforcement 4 welded on the sleeve 3, the top of the water stop screw 2 is screwed through the sleeve 3, the formwork 1 and screw reinforcement 4 are clamped in two prefabricated composite floor 5, the water stop screw 2 is arranged between two the prefabricated composite floor 5.

[0020] The water stop screw 2 includes two symmetrical cone connecting female and middle screw rod connected between the two cone connecting female, the middle screw rod is connected with water stop steel sheet, the other end of the cone connecting female is threadedly connected with outer screw rod, the other end of two outer screw rods is respectively penetrated through the formwork 1 and sleeve 3, the outer screw rod is provided with mountain-shaped card, the outer side of the mountain-shaped card is provided with nut, the nut is threadedly connected on the outer screw rod, and steel pipe is arranged between the mountain-shaped card and the formwork 1.

[0021] The outer net size of the water stop steel sheet rod is 30mm, and the thickness is 5mm.

[0022] The water stop steel sheet is provided with fixing hole, the diameter of the fixing hole is greater than the diameter of the middle screw rod by 2mm, and the water stop steel sheet is welded on the middle screw rod.

[0023] Two groups of symmetrical chute 6 are formed in the top surface of the formwork 1, the L-shaped push plate 7 is slidably connected in the chute 6, and the top of the L-shaped push plate 7 is provided with inclined surface, to facilitate the guidance of concrete.

[0024] The end face of the L-shaped push plate 7 close to the prefabricated composite floor 5 is provided with L-shaped sealing strip 8, and the spacing between the two L-shaped push plates 7 is adjusted by adjusting assembly.

[0025] The adjusting assembly includes two symmetrical adjusting screw rods 9, and the rotating sleeve 10 is threadedly connected between the ends of the two adjusting screw rods 9 close to each other, the other end of the adjusting screw rod 9 is rotatably connected to the outer wall of the L-shaped push plate 7 through bearing 11, and the shape of the bearing 11 and the clamping groove 12 is hexagonal.

[0026] The action process of the utility model is as follows:

[0027] In use, the template 1 is laid, then several water stop screw rods 2 are installed on the template 1, then the L-shaped push plate 7 is placed in the sliding groove 6, then the bearings 11 at the two ends of the adjusting assembly are clamped in the clamping grooves 12, then the prefabricated composite floor 5 is placed on the template 1, and the side wall of the prefabricated composite floor 5 is abutted on the L-shaped sealing strip 8, then the rotating sleeve 10 is held by hand, the two adjusting lead screws 9 are rotated, the two adjusting lead screws 9 are moved away from each other, the L-shaped push plate 7 is continuously pushed to approach the prefabricated composite floor 5, until the L-shaped push plate 7 cannot be pushed, then the adjusting lead screws 9 are rotated in the direction, the two adjusting lead screws 9 are moved towards each other, until the bearings 11 are separated from the clamping grooves 12, and then the concrete is poured.

[0028] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A grout leakage prevention device for composite floor slab construction, characterized in that: The system includes a template (1) and several water-stop screws (2) installed on the template (1). The top of the water-stop screws (2) is connected to a pressing component. The pressing component includes a sleeve (3) and two symmetrically arranged threaded steel bars (4) welded to the sleeve (3). The top thread of the water-stop screws (2) passes through the sleeve (3). The template (1) and the threaded steel bars (4) sandwich two precast composite floor slabs (5) in the middle. The water-stop screws (2) are set between the two precast composite floor slabs (5). Two sets of symmetrically arranged sliding grooves (6) are opened on the top surface of the template (1). L-shaped push plates (7) are slidably connected in the sliding grooves (6). L-shaped sealing strips (8) are provided on the end face of the L-shaped push plates (7) near the precast composite floor slabs (5). The spacing between the two opposite L-shaped push plates (7) is adjusted by an adjusting component.

2. The anti-grout leakage device for composite floor slab construction according to claim 1, characterized in that: The water-stop screw (2) includes two symmetrically arranged conical connecting nuts and a central threaded rod connected between the two conical connecting nuts. A water-stop steel plate is connected to the central threaded rod. An external threaded rod is threaded to the other end of the conical connecting nut. The other ends of the two external threaded rods pass through the template (1) and the sleeve (3) respectively. A mountain-shaped clamp is installed on the external threaded rod. A nut is provided on the outside of the mountain-shaped clamp. The nut is threaded to the external threaded rod.

3. The anti-grout leakage device for composite floor slab construction according to claim 2, characterized in that: The water-stop steel rod has an external clear dimension of 30mm and a thickness of 5mm.

4. The anti-grout leakage device for composite floor slab construction according to claim 3, characterized in that: The water-stop steel sheet has a fixing hole, the diameter of which is 2mm larger than the diameter of the central threaded rod, and the water-stop steel sheet is welded to the central threaded rod.

5. The anti-grout leakage device for composite floor slab construction according to claim 1, characterized in that: The adjustment assembly includes two symmetrically arranged adjustment screws (9), with a rotating sleeve (10) threaded between the two adjustment screws (9) at their closest ends. The other end of the adjustment screws (9) is rotatably connected to a slot (12) on the outer wall of the L-shaped push plate (7) via a bearing (11). The bearing (11) and the slot (12) are hexagonal in shape.

6. The anti-grout leakage device for composite floor slab construction according to claim 1, characterized in that: The top of the L-shaped push plate (7) is provided with a slope.

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