CN220954229U

CN220954229U - Split type cold extrusion connector

Info

Publication number: CN220954229U
Application number: CN202322831158.0U
Authority: CN
Inventors: 高旻
Original assignee: Hunan Huitong Zhiyuan Engineering Technology Co ltd
Current assignee: Hunan Huitong Zhiyuan Engineering Technology Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-05-14
Anticipated expiration: 2033-10-20

Abstract

The utility model provides a split type cold extrusion connector, which relates to the technical field of steel bar connection and comprises a connecting nut, a split type inner sleeve and two outer sleeves, wherein the two outer sleeves are oppositely arranged, one end, close to each other, of each outer sleeve is provided with an external thread section, and two ends of the connecting nut are respectively in threaded connection with the external thread sections of the two outer sleeves; the inner ring of the outer sleeve is a conical hole, and the caliber of the conical hole gradually increases along the direction close to the external thread section; the two ends of the split inner sleeve are respectively positioned at the inner rings of the two outer sleeves, and the outer walls of the two ends of the split inner sleeve are conical. Compared with the traditional steel bar connector, the utility model does not need to use steel bar connecting tools and hydraulic power equipment with higher requirements on construction space, and the utility model is applicable to a plurality of construction scenes and has lower labor intensity.

Description

Split type cold extrusion connector

Technical Field

The utility model belongs to the technical field of steel bar connection, and particularly relates to a split type cold extrusion connector.

Background

When the concrete structure adopts an assembly type construction process, the connection mode of the steel bars in the prefabricated components is mainly divided into grouting joint connection and steel bar mechanical connection. The common steel bar mechanical connection mode is to sleeve a steel bar connector on the outer sides of two steel bars, then radially extrude the steel bar connector or axially extrude the steel bar connector through corresponding steel bar connection tools, so that the steel bar connector deforms and is meshed with the two steel bars to be connected, and the purpose of connection is achieved.

However, in the practical use process, it is found that such a reinforcing bar connector which requires the use of a reinforcing bar connection tool and a hydraulic power device can well realize reinforcing bar connection, but since the reinforcing bar connection tool has a certain volume, it has a certain requirement on a construction space, and it cannot perform reinforcing bar connection in a narrow construction space. In addition, because the design of the existing steel bar connecting tool is too heavy, the labor intensity is high when the constructor carries the tool only by manpower to construct, and the construction progress is easily influenced.

Disclosure of utility model

The utility model aims to solve the problems of high requirement on construction space, high labor intensity and the like in the use process of the conventional steel bar connector, and provides and designs a split type cold extrusion connector so as to solve the technical problems and facilitate constructors to smoothly finish construction work.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the split type cold extrusion connector comprises a connecting nut, a split type inner sleeve and two outer sleeves, wherein the two outer sleeves are oppositely arranged, one end, close to each other, of each outer sleeve is provided with an external thread section, and two ends of the connecting nut are respectively in threaded connection with the external thread sections of the two outer sleeves; the inner ring of the outer sleeve is a conical hole, and the caliber of the conical hole gradually increases along the direction close to the external thread section; the two ends of the split inner sleeve are respectively positioned at the inner rings of the two outer sleeves, and the outer walls of the two ends of the split inner sleeve are conical. The split type cold extrusion connector provided by the utility model can realize axial extrusion of the inner sleeve directly through threaded fit between the outer sleeve and the connecting nut. That is, compared with the traditional steel bar connector, the utility model does not need to use a steel bar connecting tool and hydraulic power equipment with higher requirements on construction space, and the utility model can be suitable for a plurality of construction scenes and has lower labor intensity.

Further, the split type inner sleeve comprises at least two fan-shaped inner sleeve single bodies, all inner sleeve single bodies are arranged in the two outer sleeves in a circumferential array, and the inner sleeve single bodies can be extruded outside the steel bars together when the two outer sleeves are tightened.

Further, an auxiliary internal thread is arranged on the inner wall of the first inner sleeve monomer, and the auxiliary internal thread is enabled to engage with the reinforcing steel bar in the extrusion process, so that the purpose of connection is achieved.

Further, the split type inner sleeve comprises two conical split type inner sleeves which are oppositely arranged, the two conical split type inner sleeves are respectively positioned in the two outer sleeves, one conical split type inner sleeve comprises at least two fan-shaped inner sleeve single bodies II, all inner sleeve single bodies II of one conical split type inner sleeve are arranged in a corresponding outer sleeve in a circumferential array, and the inner sleeve single bodies II can be extruded outside the steel bars together when the corresponding outer sleeve is tightened.

Further, the inner wall of the second inner sleeve monomer is provided with a transverse groove which is used for being matched with the transverse rib of the reinforcing steel bar so as to reduce the pressure in the extrusion process.

Further, the directions of the internal threads arranged at the two ends of the connecting nut are opposite, and at the moment, the two jackets are respectively in threaded connection with a corresponding section of the internal thread.

From the above technical scheme, the utility model has the following advantages: compared with the traditional steel bar connecting tool, the utility model can finish the construction operation by using only a common spanner without using the steel bar connecting tool and hydraulic power equipment with higher requirements on the construction space, so the utility model is less limited by the construction space and can be suitable for a plurality of construction scenes; meanwhile, the utility model has the characteristics of small volume, flexible manual use, simple operation, low labor intensity and the like.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective exploded view of a first embodiment of the present utility model;

FIG. 2 is an exploded cross-sectional view of a first embodiment of the present utility model;

FIG. 3 is an assembled cross-sectional view of a first embodiment of the present utility model;

FIG. 4 is a schematic perspective exploded view of a second embodiment of the present utility model;

FIG. 5 is an exploded cross-sectional view of a second embodiment of the present utility model;

Fig. 6 is an assembled cross-sectional view of a second embodiment of the present utility model.

In the figure: 1. a jacket; 2. a conical split inner sleeve; 3. an external thread section; 4. a coupling nut; 5. a transverse groove; 6. and an inner sleeve monomer I.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 3, the first embodiment provides a first split cold extrusion connector, which includes a coupling nut 4, a split inner sleeve, and two outer sleeves 1. The two ends of the connecting nut 4 are respectively provided with a first internal thread section and a second internal thread section, and the first internal thread section and the second internal thread section are oppositely arranged in rotation direction.

The two jackets 1 are oppositely arranged, and one end of each jacket 1, which is close to each other, is provided with an external thread section 3, and is respectively in threaded connection with a corresponding internal thread section I and a corresponding internal thread section II on the connecting nut 4 through the external thread section 3; the inner ring of the outer sleeve 1 is provided with a conical hole, and the caliber of the conical hole gradually increases along the direction approaching to the external thread section 3.

The split type inner sleeve comprises two conical split type inner sleeves 2 which are identical in structure and are oppositely arranged, the two conical split type inner sleeves 2 are respectively positioned in conical holes of the two outer sleeves 1, one conical split type inner sleeve 2 comprises at least two fan-shaped inner sleeve single bodies II, all inner sleeve single bodies of the one conical split type inner sleeve 2 are arranged in the corresponding outer sleeves 1 in a circumferential array, and transverse grooves 5 used for being matched with transverse ribs of reinforcing steel bars are formed in the inner walls of the inner sleeve single bodies.

Thus, when the first embodiment is used for connecting steel bars, the two conical split inner sleeves 2 can be combined and then threaded into the middle of the connecting nut 4, then the outer sleeves 1 at the two ends are sleeved on the outer sides of the corresponding conical split inner sleeves 2 and are in threaded fit with the connecting nut 4, then the connecting nut 4 is rotated to tighten the outer sleeves 1 inwards, the two conical split inner sleeves 2 are driven to axially squeeze while the outer sleeves 1 are tightened, and the two conical split inner sleeves 2 are driven to radially deform so as to fully wrap and bite the steel bars, and the connection of the steel bars is completed.

Example two

As shown in fig. 4 to 6, the second embodiment provides a split cold extrusion connector, which includes a coupling nut 4, a split inner sleeve, and two outer sleeves 1. The two ends of the connecting nut 4 are respectively provided with a first internal thread section and a second internal thread section, and the first internal thread section and the second internal thread section are oppositely arranged in rotation direction.

The split type inner sleeve comprises at least two fan-shaped inner sleeve monomers I6, all the inner sleeve monomers I6 are arranged in the two outer sleeves 1 in a circumferential array, the outer walls of the two ends of the inner sleeve monomers I6 are conical, and auxiliary internal threads are arranged on the inner walls of the inner sleeve monomers I6.

When the second embodiment is used for connecting steel bars, all the first inner sleeve monomers 6 are combined and then penetrate into the middle of the connecting nut 4, the outer sleeves 1 at the two ends are sleeved on the outer sides of all the first inner sleeve monomers 6 and are in threaded fit with the connecting nut 4, then the connecting nut 4 is rotated to tighten the outer sleeves 1 inwards, the first inner sleeve monomers 6 are driven to axially extrude while the outer sleeves 1 are tightened, the whole split inner sleeve is caused to radially deform, so that steel bars are fully wrapped and meshed, and the connection of the steel bars is completed.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The split type cold extrusion connector is characterized by comprising a connecting nut, a split type inner sleeve and two outer sleeves, wherein the two outer sleeves are oppositely arranged, one end, close to each other, of each outer sleeve is provided with an external thread section, and two ends of the connecting nut are respectively in threaded connection with the external thread sections of the two outer sleeves; the inner ring of the outer sleeve is a conical hole, and the caliber of the conical hole gradually increases along the direction close to the external thread section; the two ends of the split inner sleeve are respectively positioned at the inner rings of the two outer sleeves, and the outer walls of the two ends of the split inner sleeve are conical.

2. The split cold extrusion connector of claim 1, wherein the split inner sleeve comprises at least two fan-shaped inner sleeve monomers, all of the inner sleeve monomers being disposed in a circumferential array within the two outer sleeves.

3. The split cold extrusion connector according to claim 2, wherein the inner wall of the first inner sleeve member is provided with an auxiliary internal thread.

4. The split cold extrusion connector according to claim 1, wherein the split inner sleeve comprises two oppositely arranged conical split inner sleeves, the two conical split inner sleeves are respectively positioned in the two outer sleeves, and one conical split inner sleeve comprises at least two fan-shaped inner sleeve monomers two, and all inner sleeve monomers two of one conical split inner sleeve are arranged in a corresponding outer sleeve in a circumferential array.

5. The split cold extrusion connector according to claim 4, wherein the inner wall of the second inner sleeve monomer is provided with a transverse groove.

6. The split cold extrusion connector of any one of claims 1 to 5, wherein the internal threads provided at both ends of the coupling nut are of opposite handedness.