CN201474176U

CN201474176U - Steel reinforcement coupler

Info

Publication number: CN201474176U
Application number: CN2009201519142U
Authority: CN
Inventors: 刘进华
Original assignee: WEIKAI CO Ltd TAIWAN
Current assignee: WEIKAI CO Ltd TAIWAN
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2010-05-19
Anticipated expiration: 2019-04-30

Abstract

The utility model provides a steel reinforcement coupler which can achieve the purposes of high structure and strong shockproof property after combination. The steel reinforcement coupler comprises a first connector and a second connector which can be connected with steel reinforcements respectively; the first connector is provided with a first coupling end; external threads are formed at the external periphery of the first coupling end taking the shape of a taper with decreasing diameter as approaching the end surface; the second connector is provided with a second coupling end which comprises a connection hole inwardly extending from the end surface; internal threads are formed at the internal periphery of the connection hole taking the shape of a taper with decreasing hole diameter from the end surface to the inside; and the tapered angle of the first coupling end and that of the connection hole of the second coupling end are about 5 degrees respectively, so that the first coupling end can be closely locked into the connection hole of the second coupling end, and the reduction of combination slippage of the steel reinforcement coupler is achieved and the effect of the shockproof property is improved.

Description

Steel bar connector

Technical field

The utility model provides a kind of steel bar connector of high earthquake-proof function, refers to a kind ofly behind two steel bar joinings especially, can reach the joint construction of reinforced concrete structure design requirement length, and can improve the steel bar connector of earthquake-proof function.

Background technology

Press, the reinforcing bar for building structure connects the use splicing processes in early days, promptly utilizes the iron wire binding to connect between two reinforcing bars, and by the concrete parcel, and finish Stress Transfer.Now, new building worker's method is welded a male joint respectively and is welded a female joint in the end of two reinforcing bars, make two reinforcing bars that fall short of to utilize this male joint and this female joint to come mutual continued access lengthening, its connection speed can be saved the engineering time soon than the iron wire binding, and has shatter-proof effect.

Consult Fig. 1 and Fig. 2, it is an existing steel bar connector 10, steel bar connector 10 comprises a male joint 12 and a female joint 14, wherein, the continued access end of male joint 12 has external screw thread 16, the continued access end of female joint 14 has can provide this inner bolt hole that external screw thread 16 is locked 18, and the in addition end of this male and

female joint

12,14 can be welded on the end of two reinforcing bars 20 respectively, makes two reinforcing bars 20 can utilize the external screw thread 16 of this male joint 12 and the inner bolt hole 18 sealed continued accesses of female joint 14.

Though existing steel bar connector 10 interconnecting between can convenient reinforcing bar 20, but, the continued access end of male joint 12 and the continued access end of female joint 14 there is no does the design that can promote sealed driving fit especially on angle, so that after the external screw thread 16 of male joint 12 and the inner bolt hole of female joint 14 18 are sealed, have bigger slippage, also be, male joint 12 combines slippage usually all near 0.1mm with female joint 14, causes the tensile strength of steel bar connector 10 and shock-proof effect further to improve.

Therefore, need a kind of structure that fully reduces in conjunction with slippage that can make steel bar connector, improve the tensile strength and the shock-proof effect of steel bar connector whereby.

The utility model content

Main purpose of the present utility model is to provide a kind of high shatter-proof steel bar connector, the continued access end of this steel bar connector is set as especially can favourable assembling and can reduce angle of taper in conjunction with slippage, effectively improves the tensile strength of parent material of reinforcement rebar whereby and promotes shock-proof effect.

The steel bar connector that constitutes according to the utility model one preferred embodiment comprises one first joint and one second joint; This first joint has one first continued access end and one first link, this first link can provide and be connected on one first reinforcing bar, this first continued access end has an outside and an end face, the outside of this first continued access end is to this end face diameter and form taper decrescence, this taper angle is in the scope of 4 to 6 degree, and the outside of this first continued access end is provided with external screw thread; This second joint has one second continued access end and one second link, this second link can provide and be connected on one second reinforcing bar, this second continued access end has an end face, the second continued access end comprises a connecting hole that is extended internally by this end face, around this connecting hole interior by the inside aperture and form taper decrescence of this end face, this taper angle is in the scope of 4 to 6 degree, and the interior of this connecting hole is provided with internal thread on every side, and the connecting hole of the second continued access end of this second joint can provide the first continued access end correspondence of this first joint to lock again.

In a preferred embodiment, the taper angle of the connecting hole of the taper angle of this first continued access end and this second continued access end is respectively 5 degree.

The external screw thread of this first joint first joint axially on extend one first length, the internal thread of this second joint second joint axially on extend one second length, preferable first length of extending greater than external screw thread of this second length.Moreover the external screw thread of this first joint comprises several continuous external screw teeths, and the internal thread of this second joint comprises several continuous internal screw threads, the preferable tooth number greater than this external screw teeth of the tooth number of this internal screw thread.

The beneficial effects of the utility model are, connect two reinforcing bars by steel bar connector of the present utility model, but tensile strength and the shock-proof effect of reinforcing steel bar mother metal after the continued access combination, and can reduce the use amount of material relatively; In addition, by cooperating of taper angle (about 5 the spending) of the taper angle of the first continued access end (about 5 degree) and the second continued access end connecting hole, can make the involutory assembling of first joint of this steel bar connector and second joint more convenient, and can reduce steel bar connector in conjunction with slippage.

Description of drawings

Fig. 1 is the sectional view of existing steel bar connector with two steel bar joinings.

Fig. 2 is existing steel bar connector in conjunction with preceding stereogram.

Fig. 3 is the three-dimensional exploded view of the steel bar connector of the utility model embodiment formation.

Fig. 4 is that the utility model steel bar connector is connected on two reinforcing bars and as yet not in conjunction with preceding sectional view.

Fig. 5 is that the utility model steel bar connector mutually combines and with the sectional view of two steel bar joinings.

The critical element symbol description:

10. steel bar connector 12. male joints 14. female joints 16. external screw threads

18. inner bolt hole 20. reinforcing bars 30. steel bar connectors 32. first joints

34. second joint, 36. first continued access ends, 37. outsides, 38. first links

39. end face 40. external screw threads 42. second continued access ends 43. end faces

44. second link, 46. connecting holes, 48. openings, 50. internal threads

52. first reinforcing bar, 54. second reinforcing bar L1., first length L, 2. second length

The specific embodiment

The utility model can be implemented with multiple different form.Now with preferred embodiment and appended graphic being described as follows of reference:

Consulting Fig. 3 to Fig. 5, is the steel bar connector 30 that constitutes according to the utility model one preferred embodiment, and this steel bar connector 30 comprises one first joint 32 and one second joint 34.In the present embodiment, this first joint 32 is the round shape bodies of rod by medium carbon steel material cold-forge forming, it has one first continued access end 36 and one first link 38, the first continued access end 36 has an outside 37 and an end face 39, the outside 37 of this first continued access end 36 is to end face 39 diameter and form taper decrescence, and in the present embodiment, the taper angle of the first continued access end 36 (θ 1) is about 5 degree, also promptly, the angle that axially has 5 degree of the conical surface bearing of trend of the first continued access end 36 and first joint 32; The outside of this first continued access end 36 also is provided with external screw thread 40, this external screw thread 40 first joint 32 axially on extend one first length (L1), in the present embodiment, comprise 9.5 continuous threads on this first length (L1), the wide 2.5mm that is about of each thread.In addition, first link 38 of this first joint 32 is connected with an end of one first reinforcing bar 52, and in the present embodiment, first joint 32 utilizes the friction welding to be connected with first reinforcing bar 52.

Second joint 34 is the round shape bodies of rod by medium carbon steel material cold-forge forming, it has one second continued access end 42 and one second link 44, the diameter of this second continued access end 42 is greater than the diameter of the first continued access end 36 of first joint 32, and has an end face 43, this second continued access end 42 comprises a connecting hole 46 that is extended internally by this end face 43, this connecting hole 46 has the opening 48 that is positioned on this end face 43, around this connecting hole 46 interior by the inside aperture and form taper decrescence of this end face opening 48, in the present embodiment, the taper angle of connecting hole 46 (θ 2) is 5 degree, also promptly, the angle that axially has 5 degree of the conical surface bearing of trend of connecting hole 46 and this second joint 34; Around this connecting hole 46 interior and be provided with internal thread 50, make the first continued access end 36 of the joint 32 of winning to lock combinations in this connecting hole 46 from these opening 48 correspondences; This internal thread 50 second joint 34 axially on extend one second length (L2), this second length (L2) is greater than first length (L1) of external screw thread 40 extensions of this first joint 32, in the present embodiment, comprise 11.5 continuous threads on this second length (L2), the wide 2.5mm that is about of each thread.In addition, second link 44 of second joint 34 is connected with an end of one second reinforcing bar 54, and in the present embodiment, this second joint 34 utilizes the friction welding to be connected with this second reinforcing bar 54.

First joint 32 and second joint 34 that constitute according to the utility model are connected on first reinforcing bar 52 and second reinforcing bar 54 discriminably, when wanting two reinforcing bars of continued access to extend, the first continued access end 36 of first joint 32 is locked in the connecting hole 46 of the second continued access end 42 of second joint 34, cooperating then by taper angle (about 5 spend) of the taper angle of the first continued access end 36 (about 5 degree) and the connecting hole 46 of the second continued access end 42, and, make the internal thread 50 of the connecting hole 46 of the external screw thread 40 of the continued access end 36 of winning and the second continued access end 42 can be closely sealed by the change of shape of tapering.Moreover, because first length (L1) that second length (L2) that internal thread 50 extends is extended greater than external screw thread 40, so the first continued access end 36 can further be locked in the connecting hole 46 of the second continued access end 42,, and then reduce in conjunction with slippage with the adaptation of raising thread.

The utility model steel bar connector 30 must be demonstrate,proved through after the actual tests, what can not only make the first continued access end 36 and the second continued access end 42 combines slippage less than 0.1mm, with tensile strength and the shock-proof effect of reinforcing steel bar mother metal after continued access combination, and can reduce the use amount of material relatively; In addition, by cooperating of taper angle (about 5 the spending) of the taper angle of the first continued access end 36 (about 5 degree) and the connecting hole 46 of the second continued access end 42, and can make the involutory assembling of first joint 32 of this steel bar connector 30 and second joint 34 more convenient, locking torque value in the assembling only needs 120N/m, the utility model can reach the design requirement value of suitable standard, so can reach design purpose and effect.

Aforementioned is the explanation of structure of the present utility model being done preferred embodiment, and can do multiple variation or modify embodiment according to design spirit of the present utility model, for example, two first reinforcing bars 52 that are connected with this first joint 32 can utilize a sleeve with inner bolt hole to connect.Therefore, for being familiar with obvious replacement and the modification that this skill personage can do, will be incorporated within the claim that the utility model advocates.

Claims

1. a steel bar connector is characterized in that, comprises:

One first joint, it has one first continued access end and one first link, this first link can provide and be connected on one first reinforcing bar, this first continued access end has outside and an end face, the outside of this first continued access end is to this end face diameter and form taper decrescence, this taper angle is between 4 to 6 degree, and the outside of this first continued access end is provided with external screw thread; And one second joint, it has one second continued access end and one second link, this second link can provide and be connected on one second reinforcing bar, this second continued access end has an end face, and comprise a connecting hole that extends internally by this end face, around this connecting hole interior by the inside aperture and form taper decrescence of this end face, this taper angle is between 4 to 6 degree, and the interior of this connecting hole is provided with internal thread on every side, and the connecting hole of the second continued access end of this second joint can provide the first continued access end correspondence of this first joint to lock again.

2. steel bar connector as claimed in claim 1 is characterized in that, the taper angle of the connecting hole of the taper angle of this first continued access end and this second continued access end is respectively 5 degree.

3. steel bar connector as claimed in claim 2, it is characterized in that, the external screw thread of this first joint this first joint axially on extend one first length, the internal thread of this second joint this second joint axially on extend one second length, and this second length first length of extending greater than this external screw thread.

4. steel bar connector as claimed in claim 3 is characterized in that, the external screw thread of this first joint comprises several continuous external screw teeths, and the internal thread of this second joint comprises several continuous internal screw threads, and the tooth number of this internal screw thread is greater than the tooth number of this external screw teeth.