CN210658928U

CN210658928U - Concrete member pre-buried hoisting seat with grouting function

Info

Publication number: CN210658928U
Application number: CN201921444941.9U
Authority: CN
Inventors: 徐光建; 彭文波; 李灿国; 郭骐硕; 裴晓东; 张世文
Original assignee: Powerchina Luoyang Prefabricated Construction Technology Co Ltd
Current assignee: Powerchina Luoyang Prefabricated Construction Technology Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-02
Anticipated expiration: 2029-09-02

Abstract

The utility model relates to a pre-buried seat of hoisting of concrete member with grout function, including the seat of hoisting body and hollow screw, the whole cylindricality structure that is equipped with the screw through-hole for inside coaxial of the seat of hoisting body, its axial middle part outside is provided with the axial reinforcing bar of perpendicular to and buries underground in the concrete member through the reinforcing bar, hollow screw set up in the seat of hoisting body and with the seat of hoisting body threaded connection, the biggest fit length of hollow screw and the seat of hoisting body is greater than the length of the concrete member that will prefabricate, the coaxial ball-type convex surface that is provided with of hollow screw lower extreme, the inside coaxial upper end open-ended hole that is provided with of hollow screw, be provided with the plane of symmetry for fastening hollow screw on the open end lateral wall of hole, be provided with the axial range on the blind end lateral wall of hole. The utility model discloses simple structure, the preparation of being convenient for are applicable to handling, leveling and the supplementary usefulness of being in milk of most precast concrete component.

Description

Concrete member pre-buried hoisting seat with grouting function

Technical Field

The utility model relates to a preparation of concrete prefabricated component specifically is a concrete component pre-buried hoist and mount seat with grout function.

Background

The weight of the prefabricated concrete member is usually heavy, and the connection among all processes is mostly completed by matching with a crane in demoulding, stacking, transporting and installing. Therefore, accessories such as a hoisting ring, an ear plate, a hoisting seat and the like must be pre-installed on the larger precast concrete member to meet the requirements of quick hanging, releasing and hoisting operation of various forms of riggings and slings.

The common hoisting ring and seat (embedded part) of the prefabricated concrete member mainly has the following forms:

1. an ∩ -type hoisting ring is bent into an omega shape by a steel bar, is connected with a stirrup into a whole, and is then poured into a whole with a precast concrete member, the hoisting ring protrudes out of the plane of the member, or is provided with a round pit which is similar to a spherical surface on the surface of the member, and the hoisting ring is placed in the round pit, so that a lifting hook and the like can be conveniently hung, and the hoisting ring is the most commonly used hoisting ring, as shown in a hoisting ring 4 shown in figure 4;

2. the embedded hanging nail (sleeve) is embedded, and the embedded height of the embedded hanging nail (sleeve) is slightly lower than the surface of the component. The special duckbill snap ring is usually used for lifting components such as stairs and flat plates, and needs to be matched with the special duckbill snap ring during lifting, as shown in a lifting nail 5 in figure 5;

3. the method is characterized in that a hoisting seat is pre-embedded, a lengthened nut is pre-embedded in a concrete member, the nut is connected with a stressed steel bar outside the concrete member, the exposed part of the nut is matched and positioned with a magnetic circular truncated cone positioning piece, a hoisting ring is screwed into a screw hole of the hoisting seat during hoisting, the method is the most widely applied form at present, the hoisting ring is removed after hoisting is completed, the surface of the member is basically planar, and the hoisting seat 6 is pre-embedded in a figure 6;

4. the embedded lifting lug plate is welded with the embedded steel plate into a whole, a slotted hole is reserved below a corresponding component, the lug plate of the lower component is just hidden in the slotted hole of the upper component when being stacked, and basically no gap is reserved, the embedded lifting lug plate is characterized by large lifting capacity, and the structure of the embedded lifting lug plate is shown as a lifting lug plate 7 in figure 7;

5. other types, like laminated slabs, can be directly hoisted by using the reinforced truss ribs.

Although the hoisting pieces (seats) on various types of precast concrete components have different structures, are simple and can be manufactured by self, and quick and convenient standard pieces specially designed by professional manufacturers can be purchased, the hoisting pieces (seats) have single functions and functions, namely, the hoisting pieces can only be used as hoisting rings during hoisting, once the installation, positioning and adjustment are completed, the service life and the functions of the hoisting pieces (seats) are ended, and no expanded space exists.

Disclosure of Invention

The utility model aims at providing a pre-buried hoist and mount seat of concrete member with grout function, based on present embedded nut's principle, multiple hoist and mount seat's is pre-buried again, the preparation advantage and the characteristics of using, the pre-buried form of cylindricality nut has been adopted, and the supporting hollow screw rod of having designed, the standard rings that play of deuterogamying, interior hexagonal spanner and supporting grout screwed joint, annexs such as end cap, can realize the drawing of patterns, the handling, the adjustment plane degree, the grout, utilize multiple functions such as other annexes of screw installation, be a multi-functional hoist and mount seat of PC concrete member through optimizing, be adapted to the handling of most precast concrete members, leveling and supplementary grout usefulness.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a pre-buried hoisting seat of concrete member with grout function, includes hoisting seat body and hollow screw, the whole cylindricality structure that is equipped with the screw thread through-hole for inside coaxial of hoisting seat body, its axial middle part outside is provided with the axial reinforcing bar of perpendicular to and buries underground in the concrete member through the reinforcing bar, hollow screw set up at hoisting seat originally internally and with hoisting seat body threaded connection, the biggest whole cooperation length of hollow screw and hoisting seat body is greater than the length of the concrete member that will prefabricate, the coaxial ball-type convex surface that is provided with of hollow screw lower extreme, the inside coaxial upper end open-ended hole that is provided with of hollow screw, be provided with the symmetry plane that is used for fastening hollow screw on the open end lateral wall of hole, be provided with the axial arrangement on the blind end lateral wall of hole for the grout.

The lower end of the internal threaded through hole of the hoisting seat body is coaxially arranged to be a round hole, and the inner diameter of the round hole is larger than that of the internal threaded through hole of the hoisting seat body; the lower end of the hollow screw is set to be a coaxial cylindrical surface, and the outer diameter of the cylindrical surface is smaller than the outer thread bottom diameter of the hollow screw; the through hole for grouting is arranged on the cylindrical surface at the lower end of the hollow screw.

The through hole for grouting is in an elliptical hole.

The principle of the utility model is that:

the hoisting seat of the utility model has the advantages that the whole hoisting seat is communicated with the thickness of the component where the hoisting seat is located, the concrete component where the hoisting seat is located can be displaced by utilizing the relative motion of the hollow screw and the hoisting seat body, the whole diameter of the hoisting seat is relatively large, and the hollow screw is required to play the role of a grouting channel; the upper end of the hollow screw is provided with a symmetrical plane for fastening the hollow screw, and the matching length of the hollow screw and the hoisting seat body can be conveniently adjusted by using a special wrench;

when the concrete member is prefabricated, four hoisting seats can be arranged at four corners of the concrete member, and 4 hollow screws are synchronously adjusted downwards during demoulding, so that the concrete member can be separated from a bottom mould, and the demoulding of the concrete member is facilitated; in the process of installing the concrete member, the purpose of adjusting the level or the angle of the member can be realized by using the same method, and meanwhile, the grouting function of the hoisting seat can perform grouting between the concrete member and a foundation surface, so that the precision and the sealing performance after the assembly are improved;

in addition, two radial through holes with different heights are designed at the lower end of the hollow screw and communicated with the inner hole, so that grouting slurry can flow out conveniently; the lowest end of the hollow screw is designed into a spherical shape, so that the friction force can be reduced during adjustment, and the labor is saved and the convenience is realized; when the external thread of the hollow screw is manufactured, the thread is rolled at the upper part, and other parts are polished rods. This is more advantageous for simplifying the manufacturing process, reducing the resistance of the screw when rotating, and reducing the cost.

The utility model has the advantages that: the utility model discloses simple structure, the preparation of being convenient for have expanded the service function of hoist and mount seat on the whole, are applicable to handling, leveling and the supplementary usefulness of being in milk of most precast concrete component, can effectively improve the production efficiency of concrete component, and in the assembly of component and installation use, the assembly precision of the adjustment component of being convenient for can assist the grout, improves firmness and sealing performance after the component installation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the hoisting base body and the steel bars.

FIG. 3 is a schematic view of a hollow screw.

Fig. 4, a schematic diagram of a pre-buried ∩ -type hoisting ring.

Fig. 5 is a schematic diagram of a pre-embedded hanging nail.

Fig. 6 is a schematic diagram of a pre-buried hoisting base in the prior art.

Fig. 7 is a schematic diagram of a pre-buried lifting lug plate.

Fig. 8 is a schematic diagram of the utility model after the grouting joint is installed.

Figure 9 is a grout joint.

In the figure, 1, a hoisting seat body 101, a threaded through hole 102, a round hole 2, a hollow screw rod 201, an inner hole 202, an inner hexagonal hole 203, a through hole 204, a cylindrical surface 3 and a steel bar.

4. Hoisting rings, 5, hoisting nails, 6, pre-buried hoisting seats, 7, hoisting lug plates, 8, grouting joints, 9 and hoses.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, a concrete member pre-buried hoisting base with grouting function comprises a hoisting base body 1 and a hollow screw rod 2, wherein the hoisting base body 1 is a cylindrical structure coaxially provided with a threaded through hole 101 inside, a reinforcing steel bar 3 perpendicular to the axial direction is arranged outside the axial middle part of the hoisting base body and is buried in the concrete member through the reinforcing steel bar 3, the hollow screw rod 2 is arranged in the hoisting base body 1 and is in threaded connection with the hoisting base body 1, the maximum integral matching length of the hollow screw rod 2 and the hoisting base body 1 is greater than the length of the concrete member to be prefabricated, the lower end of the hollow screw rod 2 is coaxially provided with a spherical convex surface, an inner hole 201 with an upper end opening is coaxially arranged inside the hollow screw rod 2, a symmetrical plane for fastening the hollow screw rod is arranged on the side wall of the open end of the inner hole 201, in, the combination of the planes of symmetry is an internal cubic hole 202, and the side wall of the closed end of the internal hole 201 is provided with through holes 203 which are axially arranged and used for grouting.

In an embodiment of the present invention, the lower end of the internal threaded through hole 101 of the hoisting seat body 1 is coaxially arranged as a circular hole 102, and the inner diameter of the circular hole 102 is larger than the inner diameter of the internal threaded through hole 101 of the hoisting seat body 1; the lower end of the hollow screw rod 2 is provided with a coaxial cylindrical surface 204, and the outer diameter of the cylindrical surface 204 is smaller than the thread bottom diameter of the hollow screw rod 2; the through hole 203 for grouting is arranged on a cylindrical surface 204 at the lower end of the hollow screw 2.

In an embodiment of the present invention, the through hole 203 for grouting has an elliptical shape.

The utility model discloses a use method:

1. the application in the process of prefabricating concrete members.

For the precast concrete member provided with the inner cavity, the inner cavity die is relatively difficult to demould due to being positioned inside the concrete member, the length of the hoisting seat body 1 can be set to be equal to the thickness of the member, a rubber plug is installed in the threaded through hole 101 of the hoisting seat body 1 to prevent the hoisting seat from being blocked when the concrete member is poured, after the peripheral side dies are removed from the concrete member, the rubber plugs for blocking the upper end of the threaded through hole 101 are opened, the hollow screws 2 are screwed into the four hoisting seat bodies 1 respectively, and then the hollow screws 2 are synchronously rotated by using an inner hexagonal wrench until the member is separated from the bottom die. And finally, screwing out the hollow screw 2, and installing a hoisting ring in the threaded through hole 101 of the hoisting seat body 1, so that the hoisting ring can be transferred by using a crane.

The method is also suitable for pouring the concrete member with the installation height needing to be adjusted.

2. The application of the concrete member in installation.

When grouting between a component and a foundation surface is needed, the hoisting seat body can be completely blown by compressed air before grouting, then a hoisting seat body is selected to be provided with the hollow screw rod 2 according to a specific position, the grouting joint 8 is installed in the hoisting seat body at the upper end of the hollow screw rod 2, as shown in figures 8 and 9, the grouting joint 8 connected with the grouting hose 9 is in threaded connection with the hoisting seat body 1, then other hoisting seat bodies 1 are tightly sealed by the plugging bolt, 1 or 2 hoisting seat bodies 1 can be left as required to be unsealed and used as an observation hole or an overflow hole, and then the grouting is processed after the grouting is finished.

For the later installation of other auxiliary facilities by using the hoisting seat body 1, measures for protecting the threaded through hole 101 in the hoisting seat body are taken before grouting, for example, long bolts or other suitable rubber pieces are used for plugging the related inner hole, so as to ensure that the threads in the threaded through hole 101 can be used again smoothly.

In conclusion, this practicality is through reasonable structural design, can the wide application in the preparation and the installation of most precast concrete members, can effectively improve the production efficiency of concrete member, in the assembly of member and installation use, the assembly precision of the adjustment member of being convenient for can assist the grout, improves firmness and sealing performance after the member installation.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a pre-buried hoisting seat of concrete member with grout function, includes hoisting seat body and hollow screw, the whole cylindricality structure that is equipped with the screw thread through-hole for inside coaxial of hoisting seat body, and its axial middle part outside is provided with the axial reinforcing bar of perpendicular to and buries underground in the concrete member through the reinforcing bar, characterized by: the hollow screw rod set up in hoist and mount seat body and with hoist and mount seat body threaded connection, the biggest whole cooperation length of hollow screw rod and hoist and mount seat body is greater than the length of the concrete member that will prefabricate, the coaxial ball-type convex surface that is provided with of hollow screw rod lower extreme, the inside coaxial upper end open-ended hole that is provided with of hollow screw rod, be provided with the symmetry plane that is used for fastening hollow screw rod on the open end lateral wall of hole, be provided with the axial arrangement on the blind end lateral wall of hole and be used for the through-hole of grout.

2. The concrete member embedded hoisting seat with the grouting function as claimed in claim 1, which is characterized in that: the lower end of the internal threaded through hole of the hoisting seat body is coaxially arranged to be a round hole, and the inner diameter of the round hole is larger than that of the internal threaded through hole of the hoisting seat body; the lower end of the hollow screw is set to be a coaxial cylindrical surface, and the outer diameter of the cylindrical surface is smaller than the outer thread bottom diameter of the hollow screw; the through hole for grouting is arranged on the cylindrical surface at the lower end of the hollow screw.

3. The concrete member embedded hoisting seat with the grouting function as claimed in claim 1, which is characterized in that: the through hole for grouting is in an elliptical hole.