CN213233425U

CN213233425U - Connecting piece for precast pile with bottom barrel

Info

Publication number: CN213233425U
Application number: CN202021998751.4U
Authority: CN
Inventors: 杨余明; 杨飞; 史文力
Original assignee: Tangshi Jianhua Construction Materials Shanghai Co Ltd
Current assignee: Tangshi Jianhua Construction Materials Shanghai Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-05-18
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to a connecting piece for precast pile with a bottom barrel, which is used for connecting two precast piles, one end of each precast pile is connected with a plurality of bottom barrels, the other end of each precast pile is connected with a plurality of top barrels, each bottom barrel is a hollow barrel, a step part is arranged on the inner barrel wall of one end of each bottom barrel, which faces towards the top barrel, a screw tapping part is arranged on the barrel wall of the outer edge of each bottom barrel, and the diameter of each step part is larger than that of the screw tapping part; the outer edge of the other end of the bottom cylinder is polygonal. This application end section of thick bamboo guarantees tensile strength, connects more efficiently, has improved connection stability, increases pile foundation security, and the increase service life has improved the benefit of enterprise.

Description

Connecting piece for precast pile with bottom barrel

Technical Field

The utility model relates to a connecting piece especially relates to a rigidity annular connecting piece that is used for precast pile of a section of thick bamboo that has a bottom.

Background

With the improvement of the importance degree of modern buildings and the continuous increase of the building height, higher requirements are put forward on the bearing capacity of the foundation, the natural foundation cannot better bear the load transmitted by the upper building, so when the natural foundation is used for covering the building, a treatment mode for enhancing the bearing capacity is provided, namely reinforced concrete is used as a foundation precast pile of the foundation, and a pile press machine is used for pressing the pile into the ground to enable the upper part of the precast pile to bear the building.

The precast piles are usually connected by welding or mechanical connection, although the welding mode is widely used, the welding quality requirement is high, the welding time is long, and after the connection, the steel plates react with chloride in soil for a long time to generate rust, so that the connection quality is reduced or disconnected. The manufacturers of precast piles therefore strive to develop mechanical joints and create a method for joining plug elements. The inserted bar or the connecting piece that are commonly used at present easily cause not hard up with the jack between, influence the connection quality, increase the place that promotes in the aspect of connecting stably.

The connecting member for the precast pile of the prior art has a space for lifting.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect, the utility model aims at providing a can dock the installation, realize the annular connecting piece that has a end section of thick bamboo of quick construction to solve prior art's technical problem.

In order to achieve the purpose, the utility model provides a connecting piece for precast pile with a bottom barrel, which is used for connecting two precast piles, one end of each precast pile is connected with a plurality of bottom barrels, the other end of each precast pile is connected with a plurality of top barrels, each bottom barrel is a hollow barrel, a stepped part is arranged on the inner barrel wall of one end of each bottom barrel, which faces the top barrels, a screw tapping part is arranged on the barrel wall of the stepped part, which reaches the outer edge of each bottom barrel, and the diameter of the stepped part is larger than that of the screw tapping part; the outer edge of the other end of the bottom cylinder is polygonal.

According to the connector for precast pile with a bottom tube of the preferred embodiment of the present application, the step portion includes at least one step.

According to the connecting piece for the precast pile with the bottom barrel, the top barrel is connected with a bolt connecting piece, the bolt connecting piece comprises a connecting head, the connecting head is connected with the top barrel, and the connecting head comprises a connecting rod, a plug part, a connecting column part and a thread part; the plug part comprises a first annular sheet body, the first annular sheet body is in a conical cylinder shape, the first annular sheet body further comprises a first bottom wafer and at least four first clamping pieces, the first bottom wafer is a circular sheet body with a through hole in the middle, the first clamping pieces are sheet bodies arranged on the first bottom wafer at intervals along the circumferential direction, and the first clamping pieces are connected with the first bottom wafer at an angle; the connecting column part is a cylinder, one end of the connecting column part is connected with the threaded part, the other end face of the connecting column part is provided with a connecting hole, the connecting rod penetrates through the middle through hole of the first bottom wafer and is connected with the connecting hole; the thread part is an external thread cylinder body, and the thread part is in threaded connection with the top cylinder.

According to the connecting piece for the precast pile with the bottom cylinder, in the preferred embodiment of the application, the plug part further comprises a second annular sheet body and a transition column, wherein the second annular sheet body is in a conical cylinder shape, the second annular sheet body further comprises a second bottom circular sheet and at least four second clamping sheets, the second bottom circular sheet is a circular sheet body with a through hole in the middle, the second clamping sheets are sheet bodies arranged on the second bottom circular sheet at intervals along the circumferential direction, and the second clamping sheets are connected with the second bottom circular sheet at an angle; the transition column is a cylinder body with a through hole in the middle; the connecting rod is sequentially connected with the middle through hole of the second bottom wafer in a penetrating manner, the middle of the transition column is provided with a through hole, and the middle through hole of the first bottom wafer is connected with the connecting hole.

The design idea of this application is, design a precast pile annular connecting piece with end section of thick bamboo, the outer edge of the one end of end section of thick bamboo is the polygon, there is the tap along the interior of the other one end of end section of thick bamboo, guarantee tensile strength, the connection accuracy of annular connector and opponent's piece has been improved, and set up multiple insurance, guarantee under the normal use that hookup location is not hard up, solve small displacement, extreme condition still can satisfy the requirement of withdrawal resistance, improve connection stability, increase pile foundation security, the increase of service life.

Compared with the prior art, the utility model has the advantages of it is following:

1. the outer edge of one end of the bottom cylinder is polygonal, the inner edge of the other end of the bottom cylinder is provided with a screw tap,

the tensile strength is ensured;

2. the bottom cylinder is directly used as a clamping counterpart piece;

3. the connecting piece improves the connecting precision of the connecting head and the counterpart piece, and the connection is more efficient;

4. this application has improved connection stability, increases pile foundation security, and the increase of service life has improved the benefit of enterprise.

Drawings

FIG. 1 is a schematic view of a connector according to the present application;

FIG. 2 is a schematic diagram of the fry of FIG. 1;

FIG. 3 is a bottom view of the base cartridge of FIG. 1

FIG. 4 is a top view of the first annular sheet of FIG. 1;

FIG. 5 is a schematic view of another embodiment;

FIG. 6 is a bottom schematic view of the base cartridge of FIG. 5;

FIG. 7 is a schematic view of a further embodiment of the base cartridge of the present application.

Detailed Description

The invention will be elucidated below on the basis of an embodiment shown in the drawing. The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is not limited by the following description of the embodiments, but is defined only by the scope of the claims, and includes all modifications that have the same meaning as the scope of the claims and are within the scope of the claims.

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

Referring to fig. 1, a connecting member for a precast pile with bottom tubes is used for connecting two precast piles, one end of each precast pile is connected with a plurality of bottom tubes 10, each bottom tube 10 is a pre-embedded connecting member pre-embedded at one end of the precast pile when the precast pile is produced, and the number of the bottom tubes 10 is different according to the design of the precast pile; the other end of the precast pile is connected with a plurality of top cylinders 20, similarly, the top cylinders 20 are pre-embedded connecting pieces pre-embedded at one end of the precast pile when the precast pile is produced, and the number of the top cylinders 20 is different according to the design of the precast pile; the bottom cylinder 10 and the top cylinder 20 are respectively designed as a coupling member that can be inserted into each other to form a coupling structure.

Referring to fig. 2, the bottom tube 10 is a hollow tube, an inner wall of the bottom tube 10 facing an end of the top tube 20 is provided with a step portion, that is, an end of the bottom tube 10 abutting against the top tube 20, the step portion includes at least one step, as shown in fig. 1 and 2, in this embodiment, the step portion includes two step surfaces (11, 12), a tap portion 13 is disposed on a wall of the step portion reaching an outer edge of the bottom tube, a diameter of the step portion is greater than a diameter of the tap portion, and the tap portion 13 is disposed between an end surface of the bottom tube and the step portion in fig. 2; in addition, a connecting hole for clamping the steel bar with large upper end and small lower end is arranged at the center of the other end of the bottom barrel 10. In this embodiment, the two stepped step surfaces (11, 12) formed on the wall of the bottom tube 10 at one end of the connector form an included angle of 90 degrees with the axial line of the bottom tube 10, and if the included angle is the same as the first locking piece 3212, the clamping strength will be better. In the embodiment of the present application, the number of the steps formed on the wall of the end of the bottom cylinder 10 facing the end of the top cylinder, which is opposite to the end of the connector, is two, but the steps cannot be used to limit the present application, and several more steps are needed as long as the clamping strength can be ensured.

Referring to fig. 3, the outer edge of one end of the bottom tube 10 is circular, the outer edge of the other end of the bottom tube 10 is polygonal, and in the drawing, it is octagonal, that is, octagonal, the outer edge of the bottom tube 10 is polygonal, so that when the tensioning nut is screwed in the tensioning process, the position of the polygon can be clamped by a tool, so that the bottom tube 10 cannot rotate, the operation is more efficient, therefore, the number of sides of the polygon can be several, for example, a triangle, a quadrangle, a hexagon, etc., which are convenient for the tool to clamp should be the protection scope of the present application.

Referring to fig. 1, the connector of the present application includes a pin connector, the pin connector includes a connector, the connector is connected to the top barrel 20, and the connector includes a connecting rod 31, a plug portion 32, a connecting post portion 33, and a screw portion 34. Describing the top cylinder 20, as shown in fig. 1, the top cylinder 20 is a cylindrical structure with an open lower end, a connecting hole for clamping the steel rod is formed in the center of the upper end of the top cylinder 20, the upper end of the connecting hole is small, and the lower end of the connecting hole is large, and an internal thread is formed in the lower portion of the inner cavity wall of the top cylinder 20 and is used for connecting the connector. As described above, the top cylinder 20 is a pre-embedded connector pre-embedded at one end of the precast pile, and during assembly, the connector can be easily screwed into the top cylinder 20 by hand.

Referring to fig. 2 and 4, the plug portion 32 includes a first annular sheet 321, the first annular sheet 321 is in a shape of a cone, the first annular sheet 321 further includes a first bottom sheet 3211 and at least four first locking sheets 3212, the number of the first locking sheets 3212 in this application is eight, but it cannot be used to limit this application, more or less, as long as the strength of the snap connection can be ensured, which also should be the protection scope of this application, the first bottom sheet 3211 is a circular sheet with a through hole in the middle, the first locking sheets 3212 are sheets circumferentially spaced on the first bottom sheet 3211, and the first locking sheets 3212 and the first bottom sheet 3211 are connected at an angle; the connecting column portion 33 is a cylinder, one end of the connecting column portion 33 is connected to the threaded portion 34, as shown in fig. 2, in this embodiment, the connecting column portion 33 and the threaded portion 34 are integrally formed, a connecting hole 331 is formed in the other end surface of the connecting column portion 33, the connecting rod 31 penetrates through a middle through hole of the first bottom circular piece 3211 and is connected to the connecting hole 331, the connecting rod 31 is a screw rod in this application, the connecting hole 331 is a threaded hole, and when assembling, after the connecting rod 31 penetrates through the middle through hole of the first bottom circular piece 3211, the connecting rod 31 is screwed with the connecting hole 331 to complete assembling of the plug portion 32; the thread part 34 is an external thread cylinder, and the thread part 34 is screwed with the top cylinder 20.

Referring to fig. 1 and 2, the plug portion 32 further includes a second annular sheet 322 and a transition column 323, wherein the second annular sheet 322 is in a shape of a conical cylinder, the second annular sheet 322 further includes a second bottom circular sheet 3221 and at least four second clamping sheets 3222, the number of the second clamping sheets 3222 in this application is eight, but it cannot be used to limit this application, and more or less than several second clamping sheets, as long as the strength of the snap connection can be ensured, and the protection scope of this application should also be reached, the second bottom circular sheet 3221 is a circular sheet with a through hole in the middle, the second clamping sheets 3222 are sheets circumferentially spaced on the second bottom circular sheet 3221, and the second clamping sheets 3222 and the second bottom circular sheet 3221 are connected at an angle; the transition column 323 is a cylinder body with a through hole in the middle; the connecting rod 31 sequentially penetrates through the middle through hole of the second bottom circular piece 3221, the middle through hole of the transition column 323 and the middle through hole of the first bottom circular piece 3211, and the connecting rod 31 is connected with the connecting hole 331, in this embodiment, the connecting rod 31 is a screw rod, the connecting hole 331 is a threaded hole, and during assembly, the connecting rod 31 sequentially penetrates through the middle through hole of the second bottom circular piece 3221, the middle through hole of the transition column 323 and the middle through hole of the first bottom circular piece 3211, and then the connecting rod 31 is screwed with the connecting hole 331 to complete the assembly of the plug part 32.

Referring to fig. 2, the connection angle between the first card 3212 and the first bottom circular piece 3211 is the same as the connection angle between the second card 3222 and the second bottom circular piece 3221, that is, the first card 3212 and the second card 3222 are two parallel rings. As shown in the drawings, the number of the ring-shaped bodies is two in the present embodiment, that is, the first ring-shaped body 321 and the second ring-shaped body 322, but it should not be limited to this application, and several turns of the ring-shaped bodies can increase the strength of the snap connection, and it should be the protection scope of this application, and in the drawing, the length of the second clamping piece 3222 is longer than the length of the first clamping piece 3212, so that the diameter of the open end of the second bottom circular piece 3221 is larger than the diameter of the open end of the first bottom circular piece 3211, and is not designed to be in a straight line.

Referring to fig. 5 and 6, in a schematic view of another embodiment of the present application, as shown in fig. 5, the connecting head includes a connecting rod 31, a plug portion 32, a connecting post portion 33 and a threaded portion 34, the plug portion 32 is cylindrical and also includes a bottom ring and a plurality of clamping pieces having gaps therebetween, the end portions of the clamping pieces are arc-shaped and outward, and because the bottom ring and the inner wall of the clamping pieces are at an included angle of 90 degrees, the number of the plug portion 32 is only one; the opposite corresponding step has only one step. And as shown in fig. 6, the outer edge of the bottom cylinder is octagonal, that is, octagonal, but it should not be construed as limiting the present application, and it should be within the scope of the present application if the outer edge of the bottom cylinder is octagonal, that is, octagonal.

Referring to fig. 7, a schematic view of another embodiment of the bottom cartridge of the present application, in which the bottom cartridge 10 is another embodiment of the bottom cartridge 10 of fig. 5, as shown in the figure, the inner wall of the bottom cartridge 10 presents an arc-shaped inner wall corresponding to the shape of the outer edge of the plug portion 32, and this design matching the shape of the outer edge of the plug portion 32 can increase the strength of the plug portion 32, and when being pulled or squeezed, the outer edge of the plug portion 32 is connected to form a support for the plug portion 32, thereby improving the service strength and life of the connector.

The work of this application is such, during the use, insert precast pile's rod iron both ends respectively in bottom tube 10 and top tube 20, the upset head forms radial protrusion, use the instrument to press from both sides the polygonal tensioning nut of screwing, fix bottom tube 10 and top tube 20 respectively through tensioning nut through tensioning technology concrete forming, insert the plug portion 32 of connector in bottom tube 10 when the stake is connected, make plug portion 32 and bottom tube 10 link together, thereby make two precast piles link together fast, because the annular lamellar body of plug portion 32 is the lamellar body or the straight barrel of angularity, as shown in fig. 1 and 5, and there is the interval between the card and can be closed and open when pressure is relieved when extrudeing, so can insert and can not pull out, card at the ladder face when pulling out, connect the fastening; the connecting piece has the advantages of being simple and compact in structure, high in anti-pulling bearing capacity, efficient, simple and convenient to connect, low in manufacturing cost, high in construction efficiency, free of welding during field installation, and capable of greatly improving construction efficiency.

The purpose of this application is, the outer edge of the one end of end section of thick bamboo is the polygon, and the interior edge of the other one end of end section of thick bamboo has the screw tap, has guaranteed tensile strength, and the connecting piece of making is more firm, and the connecting piece is through adopting mechanical connection's mode, and the cooperation is at the pre-buried mechanical component in advance of mill, during site operation, only need to aim at two sections stake hole positions, twist on the pre-buried connecting piece and can dock the installation, realize the construction of quick environmental protection, practice thrift construction cost. And the integrality and the stability of lifting machine connection, the precast pile after using the bolt connecting piece can possess better resistance to compression resistance to plucking effect and improve the anticorrosive effect of junction.

It is right above the utility model discloses carry out detailed introduction, compared with the prior art, the utility model has the advantages of it is following:

1. the outer edge of one end of the bottom cylinder is polygonal, and the inner edge of the other end of the bottom cylinder is provided with a screw tap, so that the tension strength is ensured;

2. the bottom cylinder is directly used as a clamping counterpart piece;

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A connecting piece for precast piles with bottom barrels is used for connecting two precast piles and is characterized in that one end of each precast pile is connected with a plurality of bottom barrels, the other end of each precast pile is connected with a plurality of top barrels, each bottom barrel is a hollow barrel, a stepped part is arranged on the inner barrel wall of one end, facing the top barrels, of each bottom barrel, a screw tapping part is arranged on the barrel wall from the stepped part to the outer edge of each bottom barrel, and the diameter of the stepped part is larger than that of the screw tapping part; the outer edge of the other end of the bottom cylinder is polygonal.

2. A connector for a precast pile having a bottom tube according to claim 1, wherein said step portion comprises at least one step.

3. A connecting member for a precast pile having a bottom cylinder according to claim 2, wherein said top cylinder is connected to a plug connecting member, said plug connecting member comprising a connecting head connected to said top cylinder, said connecting head comprising a connecting rod, a plug portion, a connecting post portion and a screw portion; wherein,

the plug part comprises a first annular sheet body, the first annular sheet body is in a conical cylinder shape, the first annular sheet body further comprises a first bottom wafer and at least four first clamping pieces, the first bottom wafer is a circular sheet body with a through hole in the middle, the first clamping pieces are sheet bodies arranged on the first bottom wafer at intervals along the circumferential direction, and the first clamping pieces are connected with the first bottom wafer at an angle;

the connecting column part is a cylinder, one end of the connecting column part is connected with the threaded part, the other end face of the connecting column part is provided with a connecting hole, the connecting rod penetrates through the middle through hole of the first bottom wafer and is connected with the connecting hole;

the thread part is an external thread cylinder body, and the thread part is in threaded connection with the top cylinder.

4. The connector for a precast pile with a bottom tube according to claim 3, wherein said plug portion further comprises a second annular blade and a transition post, wherein,

the second annular sheet body is in a conical cylinder shape, the second annular sheet body further comprises a second bottom wafer and at least four second clamping sheets, the second bottom wafer is a circular sheet body with a through hole in the middle, the second clamping sheets are sheet bodies arranged on the second bottom wafer at intervals along the circumferential direction, and the second clamping sheets are connected with the second bottom wafer at an angle;

the transition column is a cylinder body with a through hole in the middle;

the connecting rod is sequentially connected with the middle through hole of the second bottom wafer in a penetrating manner, the middle of the transition column is provided with a through hole, and the middle through hole of the first bottom wafer is connected with the connecting hole.