CN209954958U

CN209954958U - Precast pile splicing device

Info

Publication number: CN209954958U
Application number: CN201920662946.2U
Authority: CN
Inventors: 占昌成
Original assignee: Shandong Sanyuan Concrete Pile Industry Co Ltd
Current assignee: Shandong Sanyuan Concrete Pile Industry Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-17
Anticipated expiration: 2029-05-10

Abstract

The utility model provides a precast pile extension ware, including connecting plate and coupling hook, the connecting plate includes central part and outer fringe, and the central part is equipped with the screw hole, and the coupling hook includes columniform tip and hooked main part, and the tip of coupling hook is equipped with the external screw thread with screw hole matched with, and the outer fringe of connecting plate is equipped with and is no less than 2 through-holes. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, can be in a mould inslot, carry out the stretch-draw to the prestressing tendons in a plurality of precast piles simultaneously, the effectual production efficiency that has improved.

Description

Precast pile splicing device

Technical Field

The utility model relates to a building material technical field, specific is a precast pile extension ware among prestressed concrete precast pile mold processing.

Background

At present, precast piles used as construction foundation pile projects are classified into prestressed precast piles and non-prestressed precast piles according to the manufacturing method. Prestressed concrete refers to a method for improving the performance of a reinforced concrete member by pre-stressing the reinforced concrete member during the prefabrication process thereof in order to improve the crack resistance of the reinforced concrete member and prevent the reinforced concrete member from cracking prematurely. The method of making the tensioned reinforcement prior to the pouring of the concrete is known as the pretensioned method. The pretensioning method is a construction process of tensioning the prestressed tendons before concrete is poured, temporarily anchoring the tensioned prestressed tendons on a pedestal or a steel mould, then pouring concrete, releasing the prestressed tendons when the concrete is cured to reach a value not less than 75% of the designed strength value of the concrete, and applying prestress to the concrete by means of the bonding of the concrete and the prestressed tendons.

In the method for processing the prestressed concrete precast pile, a pretensioning method is generally adopted.

The tensioning of the prestressed tendons is realized through hydraulic equipment, and after the tensioning is finished, temporary anchoring needs to be carried out by matching with a pedestal or a steel mould. In the prior art, hydraulic equipment can only process one precast pile after being tensioned once. The hydraulic equipment needs to be connected and separated with the prestressed tendons, temporarily anchored and the like in one-time tensioning, and the machining efficiency is to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precast pile extension ware among prestressed concrete precast pile mold processing makes a mould inslot, and a plurality of precast piles end to end, hydraulic equipment's stretch-draw can carry out stretch-draw to the prestressing tendons in a plurality of precast piles simultaneously.

The technical scheme of the utility model is that:

the utility model provides a precast pile extension ware, includes connecting plate and coupling hook, and the connecting plate includes central part and outer fringe, and the central part is equipped with the screw hole, and the coupling hook includes columniform tip and hooked main part, and the tip of coupling hook is equipped with the external screw thread with screw hole matched with, and the outer fringe of connecting plate is equipped with and is no less than 2 through-holes.

The two ends of the prestressed precast pile are provided with end plates for connecting prestressed bars in the pile, and the two ends of the prestressed bars are provided with cap-shaped structures. The prestressed tendon end plate is provided with a plurality of preformed holes, the preformed holes are communicated with one another in a large mode and one another in a small mode, the cap-shaped structure of the prestressed tendon penetrates through the large hole, and the prestressed tendon is deviated to the small hole, so that the cap-shaped structure of the prestressed tendon is limited by the small hole.

After prestressing tendons and end plate installation were accomplished, the macropore of end plate was idle, the utility model discloses between the macropore of through-hole and end plate, with bolt with connecting plate and end plate fixed connection, the through-hole position on the connecting plate cooperatees with the macroporous position of end plate and quantity. The connecting hook is fixed with the connecting plate through a threaded structure, the connecting hooks of the two precast pile connecting devices are hooked together, and then the prestressed tendons in the two precast piles are connected through the two precast pile connecting devices. Because the two precast pile extension devices are hooked together, the two precast pile extension devices are easy to separate when being disassembled.

The thickness ratio of the outer edge to the central part is 2: 3-4.

The central part of connecting plate need bear great pulling force, and the outer fringe stress point is many, and the pulling force dispersion can reduce the material of connecting plate under the condition of proof strength through the thickness that increases the central part, to among the industrial production, but a large amount of precast pile extension wares of utilizing effectively reduce cost, and precast pile extension ware dead weight reduces simultaneously, the operation of being convenient for.

Preferably, the center of the through hole is located on the concentric circle of the threaded hole.

The main body part comprises a cylindrical base part and a hook part, the hook part comprises a tooth part and a connecting part for connecting the tooth part and the base part, and the length ratio of the tooth part to the connecting part in the axial direction of the base part is 2: 2-3.

The protrusion of the tooth part and the groove of the connecting part have certain clearance for the disassembly of the precast pile splicing device.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the prestressed tendons in the precast piles can be tensioned in one die groove, so that the production efficiency is effectively improved.

Drawings

FIG. 1 is a schematic view of the structure of a mold slot

FIG. 2 is a schematic view of the structure at A in FIG. 1

FIG. 3 is a schematic view of the end plate

FIG. 4 is a schematic view of a coupling hook

FIG. 5 is a front view of the attachment hook

In the figure:

1. preformed hole 2, connecting plate 3, coupling hook

4. Die groove 11, big hole 12 and small hole

21. Center portion 22, outer edge 31, end portion

32. Base 33, connecting part 34, and tooth part

211. Screw hole 221, through hole

Detailed Description

As shown in figure 1 of the drawings, in which,

the pile extension device for the precast pile of the utility model is arranged in the mould groove 4 and is used for connecting the prestressed tendons in two precast piles;

as shown in figure 3 of the drawings,

the two ends of the prestressed precast pile are provided with end plates 1 for connecting prestressed tendons in the pile, and the two ends of the prestressed tendons are provided with cap-shaped structures. The prestressed tendon end plate is provided with a plurality of preformed holes, each preformed hole comprises a large hole 11 and a small hole 12, and the large holes 11 are communicated with the small holes 12.

As shown in fig. 2, 4 and 5

The utility model relates to a precast pile extension ware, including connecting plate 2 and coupling hook 3, the connecting plate includes central part 21 and outer fringe 22, and the central part is equipped with screw hole 211, and coupling hook 3 includes columniform tip 31 and hooked main part, and coupling hook's tip 31 is equipped with the external screw thread with screw hole 211 matched with, and 2 through-holes 221 are no less than to coupling hook's outer fringe is equipped with.

The ratio of the thickness of the outer edge 22 to the central portion 21 is 2: 3.

The center of the through hole 221 is located on the concentric circle of the threaded hole 211.

The main body part comprises a cylindrical base part 32 and a hook part, the hook part comprises a tooth part 34 and a connecting part 33 connecting the tooth part 34 and the base part 32, and the length ratio of the tooth part 34 to the connecting part 33 in the axial direction of the base part 32 is 4: 5.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a precast pile extension ware which characterized in that: including connecting plate and coupling hook, the connecting plate includes central part and outer fringe, and the central part is equipped with the screw hole, and the coupling hook includes columniform tip and hooked main part, and the tip of coupling hook is equipped with the external screw thread with screw hole matched with, and the outer fringe of connecting plate is equipped with and is no less than 2 through-holes.

2. A precast pile driver as recited in claim 1, wherein: the thickness ratio of the outer edge to the central part is 2: 3-4.

3. A precast pile driver as recited in claim 2, wherein: the circle center of the through hole is positioned on the concentric circle of the threaded hole.

4. A precast pile driver as recited in claim 1, wherein: the main body part comprises a cylindrical base part and a hook part, the hook part comprises a tooth part and a connecting part for connecting the tooth part and the base part, and the length ratio of the tooth part to the connecting part in the axial direction of the base part is 2: 2-3.