CN212642166U

CN212642166U - Concrete coincide floor hoist

Info

Publication number: CN212642166U
Application number: CN202020367892.XU
Authority: CN
Inventors: 梁建国; 雷灵芝; 李壮; 赵一帆
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-03-02
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a concrete precast slab hoist and mount machines provide a concrete coincide floor hoist of "need not dispose the truss reinforcing bar in the inboard". The lifting appliance comprises a lifting frame, a clamping groove, a perforated gasket, a bolt with a lifting ring, a common bolt, a pre-embedded sleeve and a prefabricated plate. The hanger is a frame in a shape of a Chinese character 'hui' formed by welding cold-formed hollow section steel, and clamping grooves are formed in four sides of the frame; an opening gasket is arranged above the clamping groove and used for fixing a bolt; the bolts are divided into bolts with lifting rings and ordinary bolts and are used for connecting the lifting frame with the embedded sleeve and lifting; the pre-buried sleeve is pre-buried in the precast floor slab. Through the utility model discloses concrete coincide floor hoist can replace the truss reinforcing bar in the superimposed sheet now, and the board after replacing still does not ftracture at the drawing of patterns in-process, has the heavy, the effect of practicing thrift the cost of lightening board. The utility model discloses the gallows adopts the hollow shaped steel of clod wash and carries out the fluting processing, and the adjusting bolt position of being convenient for reduces the loss that leads to because of the pre-buried error of sleeve.

Description

Concrete coincide floor hoist

Technical Field

The utility model relates to a concrete precast slab hoist and mount machines provide a concrete coincide floor hoist of "need not dispose the truss reinforcing bar in the inboard".

Background

When prefabricating laminated floor slabs in factories, measures are usually taken to add truss steel bars into the floor slabs in order that the prefabricated floor slabs do not crack when being demoulded. Through analysis, the bearing capacity of the precast floor slab is enough, and the precast floor slab needs to be added with truss steel bars for cracking resistance due to the problem of the existing lifting appliance, so that the weight and the production cost of the precast floor slab are further increased. Therefore, the idea of a novel lifting appliance is provided.

Disclosure of Invention

The utility model aims to overcome the defect that current hoist exists with not enough, provide a concrete coincide floor hoist of "need not dispose the truss reinforcing bar in the inboard". Through the utility model discloses the truss reinforcing bar in the coincide floor is banned to alleviate coincide floor weight, reduction in production cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a concrete coincide floor hoist of "need not dispose truss reinforcing bar in the inboard", includes gallows, draw-in groove, trompil gasket, takes eye bolt, ordinary bolt, pre-buried sleeve and precast floor. The hanger is formed by welding cold-formed hollow section steel; the clamping groove is formed by slotting the four-side frame of the hanger; the perforated gasket is placed above the clamping groove and used for fixing the bolt; the bolt with the lifting ring and the common bolt are respectively arranged at corresponding positions; the pre-buried sleeve is arranged in the precast floor slab, and the hanger is connected with the precast slab through the connection of the bolt and the pre-buried sleeve.

Furthermore, the hanger is formed by welding cold-formed hollow square steel into a square frame, two clamping grooves are respectively formed in the short side direction of the hanger, one clamping groove is formed in the long side direction of the hanger, and the six clamping grooves are used for adjusting the position of a bolt and preventing loss caused by sleeve pre-embedding errors

Furthermore, the clamping grooves are six identical rectangular clamping grooves and are formed by slotting the hanging bracket. The center line of the long side of the rectangular frame and the center line of the short side are respectively connected at four corners of the frame to form four intersection points, the intersection points are taken as the middle points of the short sides of the clamping grooves, the center line of the short sides of the frame is taken as the symmetrical axis of the clamping grooves for slotting, namely the four clamping grooves in the short side direction of the hanger; slotting by taking the middle point in the long side direction of the frame as the intersection point of diagonal lines of the slots to form two slots in the long side direction of the hanger; the width of the slot should be less than the width of the frame.

Furthermore, the opening gasket is a rectangular steel plate with a rectangular elongated hole along the central line of the long edge, the opening width is determined by the diameter of the bolt, and the length of the gasket is larger than the width of the clamping groove. The trompil gasket spanes places on the draw-in groove for fixing bolt prevents that the bolt from sliding.

Furthermore, bolts with lifting rings are placed in clamping grooves at four corners of the hanger, and ordinary bolts are placed in clamping grooves in the middle point of the long edge of the hanger; the bolt passes trompil gasket and draw-in groove, with pre-buried muffjoint in the precast floor to this realizes being connected of gallows and precast floor.

Furthermore, the prefabricated floor slab does not need to be internally provided with truss steel bars to resist cracking, and the slab comprises embedded sleeves. The prefabricated floor slab is connected with the hanging bracket into a whole through the bolts, so that the force path is changed, the bending moment applied to the slab is reduced, and the truss steel bars in the slab are replaced.

The utility model has the advantages and the beneficial effects that:

1. the utility model discloses the hoist ftractures when avoiding the prefabricated floor drawing of patterns, bans the truss reinforcing bar in the prefabricated floor, and then alleviates floor dead weight, reduction in production cost.

2. The utility model discloses the gallows adopts the hollow shaped steel of clod wash and carries out the fluting processing, and the adjusting bolt position of being convenient for prevents the loss that arouses because of the pre-buried error of sleeve

3. The utility model discloses the hoist through prior art with the board stand to reduce gravity, draws the gallows and goes up frame rings, makes it the drawing of patterns, the drawing of patterns of keeping flat then makes the board atress more reasonable.

4. The utility model discloses the gallows passes through the bolt to be connected with prefabricated floor, and easy operation is convenient, and it is clear and definite to pass the power route, is convenient for restore after damaging.

5. The utility model discloses hoist simple manufacture, producibility is strong, can make multiple model and be applicable to different scenes.

6. The utility model discloses hoist sound construction, the appearance is pleasing to the eye, and is with low costs.

Drawings

FIG. 1 is a schematic plan view of a concrete composite floor spreader;

FIG. 2 is a schematic cross-sectional view of a concrete composite floor spreader 1-1;

wherein: 1. a hanger; 2. a card slot; 3. a pad with an opening; 4. a bolt with a lifting ring; 5. a plain bolt; 6. pre-burying a sleeve; 7. and (6) prefabricating a floor slab.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a concrete laminated floor lifting appliance without arranging truss steel bars in a plate comprises a lifting frame 1, a clamping groove 2, a perforated gasket 3, a lifting bolt 4 with a lifting ring, a common bolt 5, a pre-embedded sleeve 6 and a prefabricated floor 7. The size of the hanger is determined by the size of the prefabricated plate, the width and the height of the four frames are consistent, and the lengths of opposite sides are consistent, so that a rectangular frame is formed; 1/2, the width of the clamping groove is smaller than the width of the frame, and the length of the clamping groove is smaller than the length of the short side of the frame; the length of the perforated gasket is greater than the width of the clamping groove, and the width of the perforated gasket is determined by the diameter of the bolt; the bolts and the embedded sleeves are arranged at equal intervals and are in one-to-one correspondence, and the maximum distance between the bolts can be calculated. The hanger 1 is made of cold-formed hollow square section steel and is welded to form a square frame. The four sides of the hanger 1 are grooved, and are used as a connecting channel of the bolt and the embedded sleeve 6, namely, the clamping groove 2, so that the clamping groove can prevent the problem that the bolt and the sleeve which are caused by the embedded error of the sleeve cannot correspond to each other in connection. The clamping groove 2 is transversely spanned with the perforated gasket 3 and used for fixing the position of the bolt and preventing the bolt from sliding; the bolt is provided with a lifting bolt 4 and a common bolt 5, and the lifting bolt 4 is arranged at the four corners of the hanger through the perforated gasket 3 and the clamping groove 2; a common bolt 5 is arranged at the middle point of the long edge of the hanger through an open-pore gasket 3 and a clamping groove 2; the bolts are connected with the embedded sleeves 6 to enable the hanger 1 and the precast slab 7 to form a whole, so that the force path is changed, the bending moment borne by the slab is reduced, truss steel bars in the slab are eliminated, the dead weight of the precast slab 7 is reduced, and the precast slab 7 is not cracked.

The construction scheme is as follows:

1. pre-burying sleeves at the corresponding positions of the precast floor slabs according to the positions of bolts in the lifting appliance;

2. when the prefabricated floor slab is formed and demoulded, the lifting appliance is arranged on the prefabricated floor slab, and the position of the clamping groove corresponds to that of the embedded sleeve; 3. placing bolts with lifting rings at the clamping grooves at the four corners of the lifting appliance by penetrating the gaskets with the holes, and arranging ordinary bolts at the clamping grooves at the middle points of the long edges of the lifting appliance by penetrating the gaskets with the holes;

4. moving the bolt and the perforated gasket to the upper part of the embedded sleeve, screwing the bolt, and connecting the bolt with the embedded sleeve after penetrating through the gasket and the clamping groove, so that the lifting appliance and the prefabricated floor slab form a whole;

5. and (4) standing the mould by a demoulding machine, wherein only the adhesive force exists between the prefabricated floor slab and the mould. A hoisting machine is used for hooking the hoisting rings on the long edges of the upper surface of the erected hoisting tool, and horizontal force is applied to realize demoulding; 6. and then, horizontally placing the mould, hooking the hanging rings at the four corners of the lifting appliance by using a crane, lifting the precast floor slab out and placing the precast floor slab at a specified position to realize final demoulding.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete coincide floor hoist which characterized in that: a concrete composite floor slab lifting appliance without arranging truss steel bars in a slab; the prefabricated floor slab comprises a hanger (1), a clamping groove (2), a perforated gasket (3), bolts (4) with lifting rings, ordinary bolts (5), embedded sleeves (6) and a prefabricated floor slab (7); the hanger (1) is formed by welding cold-formed hollow section steel; the clamping groove (2) is formed by slotting the four-side frame of the hanger (1); the perforated gasket (3) is placed above the clamping groove (2); the bolt with the lifting ring (4) and the common bolt (5) are respectively arranged at corresponding positions; the pre-buried sleeve (6) is pre-buried in the precast floor slab (7).

2. The concrete laminated floor sling according to claim 1, wherein: the hanger (1) is a square frame welded by cold-bending hollow square steel; two clamping grooves are formed in the short side direction of the hanger (1), and one clamping groove is formed in the long side direction of the hanger, so that six clamping grooves (2) are formed.

3. The concrete laminated floor sling according to claim 1, wherein: the clamping grooves (2) are six identical rectangular clamping grooves and are formed by slotting the hanging bracket (1); the middle line of the long side of the rectangular frame and the middle line of the short side are respectively connected at four corners of the frame to form four intersection points, the intersection points are taken as the middle points of the short sides of the clamping grooves, the middle lines of the short sides of the frame are taken as the symmetrical axes of the clamping grooves for slotting, namely the four clamping grooves in the short side direction of the hanger (1); slotting is carried out by taking the middle point in the long side direction of the frame as the intersection point of diagonal lines of the slots to form two slots in the long side direction of the hanger (1); the width of the slot should be less than the width of the frame.

4. The concrete laminated floor sling according to claim 1, wherein: the opening gasket (3) is a rectangular steel plate with a rectangular elongated hole along the central line of the long side, the opening width is determined by the diameter of the bolt, and the length of the gasket is greater than the width of the clamping groove (2); the perforated gasket (3) is arranged on the clamping groove (2) in a crossing mode.

5. The concrete laminated floor sling according to claim 1, wherein: the bolts (4) with the lifting rings are placed at the clamping grooves at the four corners of the hanger (1), and the common bolts (5) are placed at the clamping grooves at the middle points of the long edges of the hanger (1); the bolt passes trompil gasket (3) and draw-in groove (2), is connected with pre-buried sleeve (6) in precast floor slab (7) to this realizes being connected of gallows (1) and precast floor slab (7).

6. The concrete laminated floor sling according to claim 1, wherein: the prefabricated floor slab (7) comprises a pre-embedded sleeve (6); the prefabricated floor slab (7) is connected with the hanger (1) into a whole through bolts.