CN205369722U

CN205369722U - Mantle fiber steel bar connection sleeve is exempted from to formula of cuting straightly

Info

Publication number: CN205369722U
Application number: CN201620103966.2U
Authority: CN
Inventors: 牟娜; 胡京峰; 张艳艳
Original assignee: YANTAI DASHI DAMPING PARTS CO Ltd
Current assignee: YANTAI DASHI DAMPING PARTS CO Ltd
Priority date: 2016-02-02
Filing date: 2016-02-02
Publication date: 2016-07-06
Anticipated expiration: 2026-02-02

Abstract

The utility model provides a mantle fiber steel bar connection sleeve is exempted from to formula of cuting straightly, including having the internal screw thread outer sleeve, the internal thread has an ascending oblique cone face, and characteristics are, is equipped with the inner skleeve in the outer sleeve, and the outer wall of inner skleeve is equipped with the external screw thread, and this external screw thread also has ascending oblique cone face to the corresponding fluting that is equipped with on the telescopic section of thick bamboo wall including, with the internal thread on the outer sleeve, compared with the prior art, the utility model, telescopic simple connection structure inside and outside the adoption, inner skleeve are in with screw thread connection direct loading outer sleeve, and the big microvariation of internal diameter of inner skleeve is adjustable, when the relative outer sleeve of inner skleeve moves, thereby interior sleeve diameter dwindle can hold tightly the reinforcing bar not the pine take off, its spare part is few, the installation, uses all very portably, the processing cost is low, can the greatly reduced construction cost, improve work efficiency for the construction progress, social was showing in ten minutes.

Description

Direct insertion exempt from mantle fiber reinforcing steel bar connecting sleeve tube

Technical field

This utility model relates to a kind of direct insertion mantle fiber reinforcing steel bar connecting sleeve tube of exempting from, and belongs to and is mechanically connected accessory.

Background technology

When current domestic construction industry carries out bar connecting, method generally includes overlap joint, welding, is mechanically connected (including straight screw sleeve to connect) etc..Wherein, overlap joint is tied up exactly after a reinforcing bar overlap part again, and reinforcing bar waste is serious, and welding procedure is relatively difficult, and the weakened of pad part；What connection effectiveness comparison was good is that employing is threaded, usually peel the method that end reinforced longitudinal rib to be connected and cross rib are cut off a part, then straight thread directly it is rolled into, couple together with special connecting sleeve of straight thread reinforcing steel bars, form the link of reinforcing bar, but in the application of this technology, add at rib-stripped and rolled and can destroy the globality of reinforcing bar man-hour, make steel bar meter place diameter less than this material, thus reducing reinforced steel bar strength, it addition, there is also operation loaded down with trivial details, costly, the shortcoming such as construction speed is slow.

Abroad it is developed recently a kind of new technique, such as " 2011800534906 reinforcing bar connector ", its principle is to utilize the jump ring in sleeve to hold on reinforcing bar, and jump ring externally scalene cone moves and reduces diameter and tight reinforcing bar is not got loose when applying external force, speed of application is fast, very convenient.But the processing that the shortcoming of this kind of technology is adapter is extremely complex, anti-twisted jump ring is needed to load in sleeve after making its enlarged diameter, jump ring two ends have to be fixed, otherwise jump ring will resile before reinforcing bar inserts and reduce diameter, reinforcing bar can not insert and become waste product, and its parts are many, and processing and assembly process are all extremely complex, directly result in its high finished product price, thus increasing construction cost.

Summary of the invention

The purpose of this utility model is the defect overcoming prior art to exist, it is provided that high, easy to use direct insertion of a kind of simple in construction, bonding strength exempts from mantle fiber reinforcing steel bar connecting sleeve tube.

The technical solution of the utility model is: one is direct insertion exempts from mantle fiber reinforcing steel bar connecting sleeve tube, including being with female outer sleeve, described female thread has scalene cone upwards, it is characterized as being, being provided with inner sleeve in outer sleeve, the outer wall of inner sleeve is provided with external screw thread, and this external screw thread also has scalene cone upwards, and corresponding with the female thread on outer sleeve, the barrel of inner sleeve is provided with fluting.

This utility model adopts inside and outside sleeve structure, thread joint face between inside and outside two sleeves is the screw thread plug surface with scalene cone, owing on inner sleeve barrel, design has fluting, it is adjustable that the internal diameter making inner sleeve is sized to change, therefore, when inner sleeve moves along the screw thread relative outer sleeve of oblique cutting junction, inner sleeve internal diameter can reduce such that it is able to hold reinforcing bar tightly and do not get loose.

The quantity of the fluting on inner sleeve barrel is at least 2, and according to mechanical processing technique, usually, fluting quantity is about symmetrical two or four.

In order to make inner sleeve that reinforcing bar to have coupling mechanism force, and being unlikely to depart from inner sleeve when reinforcing bar activity, the outer wall of inner sleeve is also provided with locking cranse, locking cranse is typically mounted near sleeve ends position.

Owing to being be inserted simultaneously into reinforcing bar at sleeve two ends to be attached, in order to position to reinforcing bar, can outside barrel bore middle part design have baffle plate, the inner chamber of outer sleeve is divided into two parts by baffle plate, such two ends would not interfere with each other when inserting reinforcing bar, and avoid the occurrence of intubating length error, improve construction quality.

This utility model is compared with the prior art, adopt the simple attachment structure of inside and outside sleeve, inner sleeve is directly loadable in outer sleeve with thread connecting mode, parts are few, install, use all very easy, processing cost is low, construction cost can be substantially reduced, improving work efficiency, accelerating construction progress, social benefit is very notable.

Below in conjunction with drawings and Examples, this utility model done explanation explained in detail.

Accompanying drawing explanation

Fig. 1-structural representation of the present utility model (for expressing clearly, outer sleeve only draws a part).

Fig. 2-outer sleeve structure schematic diagram of the present utility model.

Fig. 3-inner sleeve structure schematic diagram of the present utility model.

Fig. 4-structure sectional view of the present utility model.

Fig. 5-use view of the present utility model (after reinforcing bar insertion non-locking state).

Fig. 6-use view of the present utility model (after reinforcing bar insertion locking state).

Accompanying drawing drawing illustrates:

1 outer sleeve, 2 female threads, 3 inner sleeves, 4 external screw threads, 5 flutings, 6 locking cranses, 7 baffle plates.

Detailed description of the invention

Embodiment 1, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, female thread 2 on outer sleeve 1 inwall has scalene cone upwards, corresponding, inner sleeve 3 outer wall is provided with the external screw thread 4 with the upward conical surface, being provided with two symmetrical flutings 5 on the barrel of inner sleeve 3, the baffle plate 7 that the inner chamber of outer sleeve 1 is arranged by middle part is divided into two parts.

Using method, referring to Fig. 5, Fig. 6, when inner sleeve is with outer sleeve assembling, owing to both coordinate, the fluting on inner sleeve barrel is closure state substantially, inner sleeve internal diameter slightly reduces, apply external force when being inwardly inserted into reinforcing bar by big for the support of inner sleeve internal diameter, because mechanical reactance inner sleeve barrel holds reinforcing bar tightly after reinforcing bar insertion, then reversely rotate reinforcing bar again, driving inner sleeve to rotate relative to outer sleeve along screw thread oblique cutting junction and move out a part, inner sleeve internal diameter reduces thus holding reinforcing bar tightly and not getting loose.

Embodiment 2, this example structure is essentially identical with example 1, is a difference in that, is provided with locking cranse 6 again in the outer wall upper end of inner sleeve 3, shown in Figure 3, and the effect installing locking cranse 6 is to strengthen the inner sleeve 3 tightening force to reinforcing bar.

Using method is with described in example 1, after installing locking cranse, when reinforcing bar inserts inner sleeve, inner sleeve barrel is bigger to the banding intensity of reinforcing bar, no matter it is non-locking state or reverse rotation entrance locking state when reinforcing bar inserts, all can further enhance banding bonding strength.

It addition, the internal face of inner sleeve 3 is preferably crude threaded interior walls, with increasing friction force.

Claims

1. direct insertion exempt from mantle fiber reinforcing steel bar connecting sleeve tube for one kind, including the outer sleeve (1) with female thread (2), described female thread (2) has scalene cone upwards, it is characterized in that, at the inner inner sleeve (3) that is provided with of outer sleeve (1), the outer wall of inner sleeve (3) is provided with external screw thread (4), and external screw thread (4) also has scalene cone upwards, external screw thread (4) is corresponding with the female thread (2) on outer sleeve (1), is provided with fluting (5) on the barrel of inner sleeve (3).

2. according to claim 1 direct insertion exempt from mantle fiber reinforcing steel bar connecting sleeve tube, it is characterized in that, the outer wall of inner sleeve (3) is provided with locking cranse (6).

3. according to claim 1 direct insertion exempt from mantle fiber reinforcing steel bar connecting sleeve tube, it is characterized in that, quantity >=2 of the fluting (5) on described inner sleeve (3) barrel.

4. according to claim 1 direct insertion exempting from mantle fiber reinforcing steel bar connecting sleeve tube, it is characterized in that, the internal face of inner sleeve (3) is the crude internal face of screw-like.

5. according to claim 1 direct insertion exempting from mantle fiber reinforcing steel bar connecting sleeve tube, it is characterized in that, be provided with baffle plate (7) at the middle part of outer sleeve (1) inner chamber, the inner chamber of outer sleeve (1) is divided into two parts by baffle plate (7).