T-shaped fastening device for plate strip of two-section assembly type PC (Polycarbonate) laminated plate

Abstract

The utility model discloses a two-section assembly type PC laminated slab strip T-shaped fastening device which comprises a transverse rod, an inner screw rod, a conical sleeve, an outer screw rod, a steel pipe, a clamp shaped like a Chinese character'shan ', a locking nut, a laminated slab, a cast-in-place slab, a formwork and a reinforcing square edge. The inner screw rod and the outer screw rod are detachably connected through the conical sleeve, disassembly is convenient, the conical sleeve and the outer screw rod which are disassembled are repeatedly used, materials are saved, and leakage caused by the fact that a through hole is formed in a cast-in-place slab when the screw rod is taken out and sleeved with a PVC sleeve is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of the assembled PC laminated slab cast-in-place slab fastening, especially relates to a two -section type assembled PC laminated slab cast-in-place slab T type fastening screw rod. BACKGROUND

[0002] In the construction industrialization construction, the concrete prefabricated part (PC component) produced by the prefabricated component factory is widely used, in the actual construction process, the assembled PC laminated slab plate band bottom formwork is not close to the PC laminated slab bottom, and the construction quality problem is caused by leakage. In order to avoid the existence of such quality problems, the fastening device for reinforcing the assembled PC laminated slab cast-in-place slab formwork and then pouring concrete in the field of building construction is usually a whole screw rod, or the whole screw rod is directly embedded in cast-in-place concrete, the screw rod cannot be directly taken out, and the part of the cast-in-place slab is cut off by gas, welding, which is complicated, low in efficiency, causes material waste and cutting insecurity, or like the announcement number CN218406587U 《A laminated slab reinforcing device》, the whole screw rod is sleeved with a full-length sleeve pipe, and the whole screw rod is taken out after pouring concrete, which will form a through hole in the floor, causing floor leakage. In the construction of the existing assembled PC laminated slab cast-in-place slab, the fastening screw rod is usually a whole structure, and the length is fixed, so it cannot adapt to the needs of different thickness laminated slabs or different slab spacing, resulting in poor construction adaptability. In addition, the traditional screw rod needs to be cut or directly embedded in the concrete after pouring, and cannot be reused, which causes material waste and construction safety hazards. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical scheme that the technical scheme of the utility model solves its technical problems: two -section type assembled PC laminated slab plate band T type fastening device, horizontal rod, inner screw rod, conical sleeve, outer screw rod, steel pipe, mountain type card, lock nut, laminated slab, cast-in-place slab, formwork, reinforcing square, the horizontal rod and inner screw rod are arranged in the cast-in-place slab band, the horizontal rod is close to the laminated slab top surface, the conical sleeve is arranged in the formwork and close to the formwork, the outer screw rod, mountain type card, reinforcing square and lock nut are arranged at the bottom of the cast-in-place slab band, and the lock nut is screwed and the steel pipe are combined to form a fastening effect.

[0004] The utility model discloses beneficial effect is: through adopting sectional design, makes the length of inner screw rod can be adjusted according to the laminated board thickness, the length of cross bar can be adjusted according to two laminated board spacing, improve the adaptability and versatility of device. Meanwhile, through adopting conical sleeve makes inner screw rod and outer screw rod detachable connection, namely convenient disassembly turnover screw rod, improves operation efficiency, can simultaneously repeatedly use disassembled conical sleeve and outer screw rod, saves the material. In addition, detachable outer screw rod no longer uses gas, welding cutting operation, avoids the harm of gas welding cutting operation to human body. And, will not leave the through hole in cast-in-place board, effectively prevent cast-in-place board because of the through hole forms leakage and repair hole. BRIEF DESCRIPTION OF DRAWINGS

[0005] Figure 1 It is two sectional assembly type PC laminated board strip T type fastening device application section view.

[0006] Figure 1 Marked as: cross bar (1);Inner screw rod (2);Conical sleeve (3);Outer screw rod (4);Steel pipe (5);Mountain type card (6);Locking nut (7);Laminated board (8);Cast-in-place board (9);Formwork (10);Reinforced square (11).

[0007] Figure 2 It is the section view of conical sleeve (3) connecting inner screw rod (2) and outer screw rod (4). SPECIFIC EMBODIMENT

[0008] The utility model is further explained in connection with the drawings and specific embodiment.

[0009] As shown in the figure, the two sectional assembly type PC laminated board strip T type fastening device of the utility model, cross bar (1), inner screw rod (2), conical sleeve (3), outer screw rod (4), steel pipe (5), mountain type card (6), locking nut (7), laminated board (8), cast-in-place board (9), formwork (10), reinforced square (11);Cross bar (1) rests on laminated board top surface, and the length of cross bar (1) is according to the distance between two laminated boards (8) plus 100mm, the inner screw rod (2) is fixed with cross bar (1) using 90 ° welding, the inner screw rod (2) is connected with conical sleeve (3) using the screw port, the conical sleeve (3) is connected with outer screw rod (4) using the screw port, the formwork (10), reinforced square (11), steel pipe (5), mountain type card (6) are placed in order as shown, and the laminated board is closely attached with the formwork through the rotation of locking nut (7) to achieve the fastening effect. Inner screw rod (2), conical sleeve (3), outer screw rod (4), mountain type card (5), locking nut (6) are coaxially arranged.

[0010] The utility model in using, outer screw rod (4) is connected with inner screw rod (2) through conical sleeve (3), as Figure TwoThe utility model discloses a kind of PC composite board pouring device, including outer screw rod (4), inner screw rod (2), horizontal rod (1) and conical sleeve (3), outer screw rod (4) is connected with inner screw rod (2), and inner screw rod (2) is connected with horizontal rod (1), and horizontal rod (1) is connected with conical sleeve (3).The utility model discloses, after concrete pouring is completed, only after screwing outer screw rod (4) and conical sleeve (3) (can be recycled) is unloaded, it is very convenient and efficient, while unloaded conical sleeve (3) and outer screw rod (4) can be matched with new horizontal rod (1) and inner screw rod (2) and be reused, and it will not leave through hole in cast-in-place slab (9), cause cast-in-place slab (9) to leak.The length of inner screw rod (2) can be selected or adjusted according to the thickness of PC composite board (8) in actual construction, to adapt to the composite board of different thickness.The length of horizontal rod (1) can be cut or selected according to the actual distance between two composite boards (8) Different length standard parts, to ensure that horizontal rod (1) both ends can be stably placed on composite board (8).Conical sleeve (3) is small inside screw sleeve of big, it is convenient to pour concrete and remove from cast-in-place slab (9) after, and with outer screw rod (4) is recycled, after cleaning, it can be combined with different length inner screw rod (2) and different length horizontal rod (1) as needed and be used repeatedly in next construction section.

[0011] The above is only the preferred embodiment of the utility model, not any form of restriction on the utility model, any skilled person in the art, without departing from the technical scheme range of the utility model, according to the technical essence of the utility model, any simple modification, equivalent replacement and improvement of the above embodiment, etc.

Claims

1. A two-stage fabricated PC composite slab strip T-type fastening device, characterized in that, The utility model relates to a PC prefabricated beam, which comprises a horizontal rod (1), an inner screw rod (2), a conical sleeve (3), an outer screw rod (4), a steel pipe (5), a mountain-shaped clamp (6), a locking nut (7), a laminated slab (8), a cast-in-place slab (9), a formwork (10) and a reinforcing square bar (11), wherein the inner screw rod (2) is detachably connected with the outer screw rod (4) through the conical sleeve (3). The length of the inner screw rod (2) can be adjusted according to the thickness of the PC laminated slab (8).

2. The two-stage assembled PC composite slab strip T-shaped fastening device according to claim 1, characterized in that, The conical sleeve (3) and the outer screw rod (4) can be reused after pouring concrete.

3. The two-section assembled PC composite slab strip T-shaped fastening device according to claim 1, characterized in that, The length of the horizontal rod (1) can be adjusted according to the distance between two laminated slabs (8).

4. The two-stage assembled PC composite slab strip T-shaped fastening device according to claim 1, characterized in that, The conical sleeve (3) is an inner thread sleeve, which serves to connect the inner screw rod (2) and the outer screw rod (4) and is larger at the lower end and smaller at the upper end, and can be reused after pouring concrete.

5. The two-stage assembled PC composite slab strip T-shaped fastening device according to claim 1, characterized in that, ​

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