CN207032682U - Steel concrete supporting Novel joint - Google Patents

Abstract

The utility model provides a kind of steel concrete supporting Novel joint, it is characterised in that：Including a sleeve and two reinforcing bars docked, the sleeve includes two docking main bodys and at least two locking members；Any docking main body has a semicircle protruded stigma and two engaging lugs；The surface of the cancave cambered surface of the semicircle protruded stigma and the docking section of two reinforcing bars She You not concave convex texture；Two engaging lugs are connected to the both sides of the semicircle protruded stigma；Two semicircle protruded stigmas are made to surround a cylinder with by the docking section clamping of two reinforcing bars after the two docking main body docking, and the engaging lug is overlapped and locked respectively by a locking member two-by-two.Joint of the present utility model can reduce the difference that different installation personnels cause final product quality to greatest extent, improve the stability of reinforcing bar and sleeve connection.

Description

Steel concrete supporting Novel joint

【Technical field】

A kind of reinforced bar mechanical connector is the utility model is related to, the connection for two sections of reinforcing bars.

【Background technology】

Existing steel concrete supporting method is broadly divided into two major classes, when threaded connection, second, extrusion socket joint.Wherein Threaded connection is divided into roll forming straight screw connection again, upset straight screw connection connects with cold rolling taper thread, the connection of common taper thread.Set Cylinder extruding connection is then divided into radial compression connection and axial compression connection.Various the shortcomings that can mechanically connecting point are carried out below Analysis：

1st, extrusion socket joint is due to equipment heaviness, and labor strength is big, and corrective maintenance is bad to be also easy to produce oil leaking pollution Reinforcing bar, influence effect and normally play, made troubles to use and maintenance, connection speed is not as threaded connection, and sleeve is larger, cost ratio Threaded connection is high, therefore building-site is more usually threadedly coupled.

2 however threaded connection also has its shortcoming, taper thread connection is first to be processed into steel bar end with taper thread die head threading machine Taper thread, then the sleeve with taper thread together with bar connecting to be docked.Reinforcing bar during sleeve connection with that must apply one Fixed screw-down torque just can guarantee that quality of connection, if worker's inadvertent is twisted not tightly, slippage, taper thread are also easy to produce after reinforcing steel bar bear Bottom footpath is less than parent material of reinforcement rebar base circle diameter (BCD), and strength of joint can be weakened, and influenceed joint performance, in general, do not taken spy Different measure, joint performance grade can only achieve B levels.Although taper thread connection centering is good, tighter is required to reinforcing bar, reinforcing bar is not It can bend or have horseshoe incision, it is incomplete to be otherwise also easy to produce screw thread, and hidden danger is left to quality of connection.

3rd, upset straight thread connector is first to cut away the shape of a hoof termination of reinforcing bar, then with steel bar header by steel bar end upsetting Slightly, cut into straight thread with straight thread die head threading machine, by straight screw sleeve by bar connecting to be docked together.Jumping-up Not only process is cumbersome for straight screw connection, and the reinforcing bar head metallographic structure after jumping-up changes, and without temper, can produce should Power is concentrated, and ductility reduces, and is unfavorable to improving joint stress.

4th, thread rolling bar joints technology is steel newly developed the defects of overcoming the technologies such as taper thread, upsetting straight Muscle MACHINERY JOINT, general principle are first to peel off the longitudinal and transverse rib in steel bar end surface to be connected, are then rolled into regular straight Screw thread, then two reinforcing bars are now linked into an integrated entity to tightening with the female sleeve of the band to match.According to steel working hardening Principle, the straight thread intensity that rolling goes out on reinforcing bar increases substantially, it is sufficient to makes up the loss of strength caused by stripping rib, and ductility It is good, the intensity and ductility of parent material of reinforcement rebar can be given full play to.But due to the otherness of personnel, screwing force spend it is big or insufficient, or Person's steel bar head and in the case of bush whorl centering is not tightened, and the connection of butt joint is all unfavorable.

【Utility model content】

The technical problems to be solved in the utility model, it is to provide a kind of steel concrete supporting Novel joint, can maximum limit Degree reduces the difference that different installation personnels cause final product quality, improves the stability of reinforcing bar and sleeve connection.

What the utility model was realized in：A kind of steel concrete supporting Novel joint, including a sleeve and two docking Reinforcing bar, the sleeve include two docking main bodys and at least two locking members；Any docking main body has a semicircle protruded stigma With two engaging lugs；The surface of the cancave cambered surface of the semicircle protruded stigma and the docking section of two reinforcing bars She You not concave convex texture；Two engaging lugs It is connected to the both sides of the semicircle protruded stigma；Two semicircle protruded stigmas are made to surround a cylinder to incite somebody to action after the two docking main body docking The docking section clamping of two reinforcing bars, and the engaging lug is overlapped and locked respectively by a locking member two-by-two.

Further, the locking member is screw and nut assembly, and a lockhole is offered on any engaging lug, described Screw and nut assembly wears two lockhole internal lockings overlapped to complete the connections of two docking main bodys.

Further, the concave convex texture is concave convex texture that is horizontal and being substantially parallel, and on the cancave cambered surface of semicircle protruded stigma Concave convex texture and steel reinforcement abutting joints portion surface on the mutually concavo-convex Corresponding matching of concave convex texture.

Further, the depth of lines of the concave convex texture is 1.5mm, and lines spacing is 2.5mm.

Further, the sleeve is made of No. 45 carbon constructional quality steels, chrome-faced.

Further, the docking section of the reinforcing bar is to be processed into after peeling off longitudinal and transverse rib by steel bar end surface with institute State the silk head of concave convex texture.

The utility model has the advantage of：The utility model is improved on the basis of thread rolling bar joints technology, So that field joint installment work is simpler and convenient, different installation people can be reduced with limit additionally by sleeve to install Member causes the difference of final product quality, improves the stability of reinforcing bar and sleeve connection.

【Brief description of the drawings】

The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the front-view schematic diagram of the confined state of the utility model steel concrete supporting Novel joint.

Fig. 2 is the schematic top plan view of the confined state of the utility model steel concrete supporting Novel joint.

Fig. 3 is the structural representation of the cancave cambered surface of the utility model middle sleeve.

Fig. 4 is the external structure schematic diagram of the docking section of reinforcing bar in the utility model.

Fig. 5 is the confined state axial direction schematic cross-sectional view of the utility model steel concrete supporting Novel joint.

【Embodiment】

Refer to shown in Fig. 1 to Fig. 5, a kind of steel concrete supporting Novel joint of the present utility model, including the He of a sleeve 1 The reinforcing bar 2 of two docking, the sleeve 1 include two docking main bodys 11 and at least two locking members 12；Any docking main body 11 have a semicircle protruded stigma 111 and two engaging lugs 112；The cancave cambered surface A of the semicircle protruded stigma 111 and two reinforcing bars 2 docking section 21 Surface She You not concave convex texture 3；Two engaging lugs 112 are connected to the both sides of the semicircle protruded stigma 111；The two docking master Body 11 makes two semicircle protruded stigmas 111 surround a cylinder with by the clamping of docking section 21 of two reinforcing bars 2 after docking, and the engaging lug 112 overlap and are locked respectively by a locking member 12 two-by-two.

The locking member 12 is screw and nut assembly, and a lockhole 113 is offered on any engaging lug 112, described Screw and nut assembly wears two internal lockings of lockhole 113 overlapped to complete the connections of two docking main bodys 11.

The concave convex texture 3 is concave convex texture that is horizontal and being substantially parallel, and the asperities on the cancave cambered surface A of semicircle protruded stigma Road 3 is with the mutually concavo-convex Corresponding matching of concave convex texture 3 on the surface of the docking section 21 of reinforcing bar 2, i.e., concave convex texture 3 on cancave cambered surface A The convex portion of recess and the concave convex texture 3 on the surface of docking section 21 coincide.

The depth of lines H of the concave convex texture 3 is 1.5mm, and lines space D is 2.5mm.

The sleeve 1 is made of No. 45 carbon constructional quality steels, chrome-faced.

The docking section of the reinforcing bar 2 is to be processed into after peeling off longitudinal and transverse rib by steel bar end surface with the asperities The silk head on road 3.

Wherein, the specification of sleeve of the present utility model is adjusted according to bar gauge, using bar gauge as 20mm Situation be illustrated as an example.Length sleeve is 50mm, external diameter 30mm, the bosom of concave convex texture far from the center of circle with a distance from For 10.5mm, lines most highlight is 9mm, depth of lines 1.5mm, lines spacing 2.5mm from circle center distance.Semicircle protruded stigma Diameter 24mm, thickness 4mm, two engaging lugs are on the axial plane of semicircle protruded stigma, and from being provided with diameter at sleeve central axis 6mm About 4mm circular hole, for, so that two docking main body lockings to be docked, the locking member to be outside screw thread through supporting locking member Footpath is 4mm screw and nut assembly.Its implementation process is：

1st, first, it is identical with roll forming straight thread joint technique, first the longitudinal and transverse rib in steel bar end surface to be connected is peeled off, added Work is into level and being substantially parallel the silk head of lines, cutting depth 1.5mm, specifically need to process the length of complete silk head, Complete lines number, stripping rib length, effective lines number are then entered according to bar gauge (it is 16mm~50mm to be applicable bar gauge) Row adjustment.It is 20mm situation as example using bar gauge, the spacing for processing lines is 2.5mm, and stripping rib length is 27mm, effectively Lines length is 25mm；

2nd, the reinforcing bar both ends processed are together put on the cancave cambered surface of a docking main body, pays attention to it is identical between lines, The end (i.e. silk cephalic par) of the docking section of reinforcing bar should not have offset all in the centre position of sleeve, carefully cover in addition One docking main body, the connection between sleeve and reinforcing bar is fixed by screw and nut assembly.

The utility model is improved on the basis of thread rolling bar joints technology so that field joint installment work is more Add simple and facility, the difference that different installation personnels can be reduced with limit and cause final product quality is installed additionally by sleeve It is different, improve the stability of reinforcing bar and sleeve connection.

Although the foregoing describing specific embodiment of the present utility model, those familiar with the art should Work as understanding, the specific embodiment described by us is merely exemplary, rather than for the limit to the scope of the utility model Fixed, those skilled in the art should in the equivalent modification and change made according to spirit of the present utility model Cover in scope of the claimed protection of the present utility model.

Claims (6)

1. A kind of 1. steel concrete supporting Novel joint, it is characterised in that：Including a sleeve and two reinforcing bars docked, the sleeve bag Include two docking main bodys and at least two locking members；Any docking main body has a semicircle protruded stigma and two engaging lugs；It is described The surface of the docking section of the cancave cambered surface of semicircle protruded stigma and two reinforcing bars She You not concave convex texture；Two engaging lugs are connected to described half The both sides of circle protruded stigma；Two semicircle protruded stigmas are made to surround a cylinder with by the docking section card of two reinforcing bars after the two docking main body docking Tightly, and the engaging lug is overlapped and locked respectively by a locking member two-by-two.
2. A kind of 2. steel concrete supporting Novel joint as claimed in claim 1, it is characterised in that：The locking member is screw Nut assembly, a lockhole is offered on any engaging lug, and the screw and nut assembly wears the lockhole internal locks of two overlappings Tightly with the connections of two docking main bodys of completion.
3. A kind of 3. steel concrete supporting Novel joint as claimed in claim 1, it is characterised in that：The concave convex texture is level And the concave convex texture being substantially parallel, and the concave convex texture on the cancave cambered surface of semicircle protruded stigma and the asperities on steel reinforcement abutting joints portion surface The mutually concavo-convex Corresponding matching in road.
4. A kind of 4. steel concrete supporting Novel joint as described in claim 1 or 3, it is characterised in that：The concave convex texture Depth of lines is 1.5mm, and lines spacing is 2.5mm.
5. A kind of 5. steel concrete supporting Novel joint as claimed in claim 1, it is characterised in that：The sleeve is excellent using No. 45 Matter carbon structural steels are made, chrome-faced.
6. A kind of 6. steel concrete supporting Novel joint as claimed in claim 1, it is characterised in that：The docking section of the reinforcing bar is The silk head with the concave convex texture is processed into after peeling off longitudinal and transverse rib by steel bar end surface.