CN218091627U - Steel bar connecting structure - Google Patents

Abstract

The utility model belongs to the technical field of the reinforcing bar and specifically relates to a steel bar connection structure is related to, it includes that first reinforcing bar, second reinforcing bar, cover locate the connecting sleeve between first reinforcing bar and the second reinforcing bar, rotate connect in the driving sleeve of connecting sleeve outer wall, symmetry set up in the locking mechanical system at connecting sleeve both ends, locking mechanical system include fixed connection in connecting sleeve just winds a plurality of armful pieces, the threaded connection that evenly arrange of connecting sleeve circumference in driving sleeve inner wall and butt in the butt ring of a plurality of armful piece outer walls, set up in a plurality of the armful piece with circumference locating part between the butt ring, the armful piece is along keeping away from connecting sleeve's direction thickness reduces gradually, driving sleeve inner wall corresponds both sides butt ring and is equipped with positive thread section and negative thread section respectively, butt ring difference threaded connection in two sets of locking mechanical system in positive thread section and negative thread section. This application has the effect of being convenient for to the steel bar connection.

Description

Steel bar connecting structure

Technical Field

The application relates to the field of reinforcing steel bars, in particular to a reinforcing steel bar connecting structure.

Background

At the present construction site, steel bars mainly bearing tension or pressure in a main body structure often need to be continuously lengthened or connected into a steel bar framework, and common steel bar connection technologies mainly comprise binding, electric welding, sleeve extrusion mechanical connection, grouting sleeve connection and the like.

When the longitudinal tensioned steel bar adopts a binding overlap joint, the minimum overlap length of the steel bar binding joint is in accordance with the area percentage of the joint and meets the requirements of the acceptance criteria of the construction quality of concrete structure engineering. When the diameter of the stressed steel bar is larger than 10mm, the steel bar is bound and connected, and more steel bar is wasted; the electric arc welding connection of the steel bars depends on the level of a welder and generally generates internal stress on the steel bars;

the sleeve is connected in an extrusion manner, the ends of two steel bars to be connected are inserted into the steel sleeve, the steel sleeve is extruded by a knot pressing device along the radial direction to generate plastic deformation, the deformed steel sleeve is tightly occluded with the steel bars, the connection effect is achieved, the extrusion connection quality of the sleeve is ensured, but the cost is high, and the most important defect is that the cost is high;

grouting sleeve connection, the steel bar joint connection technique commonly used in the assembled structure has the regulation to sleeve, grouting material, faying face, sleeve protective layer and connection length, and although the connection effect is better, design and construction need the attention more, and the sleeve is difficult to be under the condition that the reinforcing bar is arranged more densely, and technical cost is higher.

In summary, the existing reinforcing bar connecting technology has the defects of material waste, high engineering cost, or limited application range, etc., so how to design an economical and easy-to-operate reinforcing bar connecting structure is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In order to be convenient for connect between the reinforcing bar, this application provides a steel bar connection structure.

The application provides a pair of steel bar connection structure adopts following technical scheme:

the utility model provides a steel bar connection structure, includes first reinforcing bar, second reinforcing bar, cover locate the connecting sleeve between first reinforcing bar and the second reinforcing bar, rotate connect in the drive sleeve of connecting sleeve outer wall, symmetry set up in the locking mechanical system at connecting sleeve both ends, locking mechanical system include fixed connection in the connecting sleeve just winds a plurality of armful pieces, the threaded connection that connecting sleeve circumference was evenly arranged in drive sleeve inner wall and butt in the butt ring of a plurality of armful piece outer walls, set up in a plurality of the armful piece with circumference locating part between the butt ring, the armful piece is along keeping away from the direction thickness of connecting sleeve reduces gradually, the drive sleeve inner wall corresponds both sides butt ring and is equipped with positive thread section and negative thread section respectively, butt ring difference threaded connection among two sets of locking mechanical system in positive thread section and negative thread section.

Preferably, the circumferential limiting part comprises a plurality of limiting blocks fixedly connected to the inner wall of the abutting ring and slidably connected to the gaps between the two adjacent holding pieces in a one-to-one correspondence manner.

Preferably, the drive sleeve inner wall is seted up and is the cyclic annular limit groove that extends along its circumference, the coaxial fixedly connected with of connecting sleeve outer wall rotate connect in go-between in the limit groove.

Preferably, the cross-sectional shape of the abutment ring is semicircular.

Preferably, a plurality of ribs are fixedly connected to the inner wall of the holding piece, and the ribs are matched with the ribs on the outer wall of the first steel bar or the second steel bar.

Preferably, the outer wall of the driving sleeve is provided with friction grains.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the steel bars need to be connected, the first steel bar and the second steel bar are respectively inserted into the connecting sleeve from two ends of the connecting sleeve, the convex ribs on the inner wall of the holding piece are used for clamping the first steel bar and the second steel bar respectively, the abutting rings which are in threaded connection with the positive thread section and the negative thread section respectively are close to each other by rotating the driving sleeve, the thickness of the holding piece is gradually increased towards the direction of the connecting sleeve, and when the abutting rings move, the holding piece is gradually pressed towards the surface of the first steel bar or the surface of the second steel bar, so that the first steel bar and the second steel bar are locked in the connecting sleeve, and the connection between the first steel bar and the second steel bar is more stable through the matching of the convex ribs and the ribs;

2. the limit block arranged on the inner wall of the butting ring is matched with the holding piece, so that the butting ring is not easy to be driven to rotate by friction force in the rotating process of the driving sleeve;

3. under the cooperation of spacing annular and go-between to the axial relative position between drive sleeve and the connecting sleeve is injectd, makes to be connected between drive sleeve and the connecting sleeve more stably.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is an overall sectional view of the present embodiment.

Description of the reference numerals: 1. a first reinforcing bar; 2. a second reinforcing bar; 3. a connecting sleeve; 4. a drive sleeve; 5. a locking mechanism; 6. a limiting ring groove; 7. a connecting ring; 8. holding sheets; 9. a butting ring; 10. a circumferential limit piece; 11. a limiting block; 12. a rib; 13. and (4) ribs.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses steel bar connection structure. Referring to fig. 1-2, a steel bar connection structure includes a first steel bar 1, a second steel bar 2, a connection sleeve 3 sleeved between the first steel bar 1 and the second steel bar 2, a driving sleeve 4 rotatably connected to the outer wall of the connection sleeve 3, and locking mechanisms 5 symmetrically arranged at two ends of the connection sleeve 3, wherein the connection sleeve 3 and the driving sleeve 4 are both cylindrical and coaxially arranged, the inner diameter of the connection sleeve 3 is slightly larger than the diameter of the first steel bar 1 or the second steel bar 2, and the outer wall of the driving sleeve 4 is provided with friction grains.

For making to be connected more stably between connecting sleeve 3 and the driving sleeve 4, driving sleeve 4 inner wall is seted up and is the spacing annular groove 6 that cyclic annularly extends along its circumference, the coaxial fixedly connected with of connecting sleeve 3 outer wall rotates the go-between 7 of connecting in spacing annular groove 6, under the cooperation of spacing annular groove 6 and go-between 7, with inject the axial relative position between driving sleeve 4 and the connecting sleeve 3, make to be connected more stably between driving sleeve 4 and the connecting sleeve 3.

Locking mechanical system 5 includes fixed connection in connecting sleeve 3 and a plurality of armful pieces 8 evenly arranged around 3 circumference of connecting sleeve, threaded connection is in the butt ring 9 of a plurality of armful 8 outer walls of inner wall of drive sleeve 4 and butt, set up the circumference locating part 10 between a plurality of armful 8 and butt ring 9, wherein, be the interval setting between two adjacent armful pieces 8, drive sleeve 4 inner wall corresponds both sides butt ring 9 and is equipped with positive thread section and negative thread section respectively, butt ring 9 among two sets of locking mechanical system 5 is threaded connection in positive thread section and negative thread section respectively.

The circumference locating part 10 includes a plurality of stoppers 11 that fixed connection is in the clearance between two adjacent armful pieces 8 in the inner wall of butt ring 9 and one-to-one sliding connection, through set up stopper 11 and cooperate between the armful piece 8 at butt ring 9 inner wall for the driving sleeve 4 is difficult for driving butt ring 9 rotatory because of frictional force at rotatory in-process.

Embrace piece 8 and reduce along the direction thickness of keeping away from connecting sleeve 3 gradually, embrace 8 inner wall diameters of piece the same in the axial, embrace 8 outer wall diameters of piece and reduce gradually in the axial, 9 cross sectional shapes of butt ring are semi-circular, for increasing the occlusal force between piece 8 and first reinforcing bar 1 or second reinforcing bar 2, embrace a plurality of beads 12 of 8 inner wall fixedly connected with of piece, the bead 12 cooperatees with the rib 13 of first reinforcing bar 1 or 2 outer walls of second reinforcing bar.

The implementation principle of the steel bar connection structure in the embodiment of the application is as follows:

when the steel bars are required to be connected, the first steel bar 1 and the second steel bar 2 are respectively inserted into the connecting sleeve 3 from two ends, the convex ribs 12 on the inner wall of the holding piece 8 are used for clamping the first steel bar 1 and the second steel bar 2 respectively, the abutting rings 9 which are connected with the positive thread section and the negative thread section in a threaded connection mode are enabled to be close to each other through rotation of the driving sleeve 4, the thickness of the holding piece 8 is gradually increased towards the direction of the connecting sleeve 3, when the abutting rings 9 move, the holding piece 8 is gradually pressed towards the surface of the first steel bar 1 or the surface of the second steel bar 2, and therefore the first steel bar 1 and the second steel bar 2 are locked in the connecting sleeve 3, and the first steel bar 1 and the second steel bar 2 are connected more stably through matching of the convex ribs 12 and the ribs 13.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a steel bar connection structure which characterized in that: connecting sleeve (3) between first reinforcing bar (1) and second reinforcing bar (2), cover are located including first reinforcing bar (1), second reinforcing bar (2), rotate connect in driving sleeve (4), the symmetry of connecting sleeve (3) outer wall set up in locking mechanical system (5) at connecting sleeve (3) both ends, locking mechanical system (5) including fixed connection in connecting sleeve (3) and around a plurality of armful piece (8), the threaded connection that connecting sleeve (3) circumference was evenly arranged in driving sleeve (4) inner wall and butt in a plurality of butt ring (9) of embracing piece (8) outer wall, set up in a plurality of embrace piece (8) with circumference locating part (10) between butt ring (9), embrace piece (8) along keeping away from the direction thickness of connecting sleeve (3) reduces gradually, driving sleeve (4) inner wall corresponds both sides butt ring (9) and is equipped with positive thread section and anti-thread section respectively, butt ring (9) in locking mechanical system (5) threaded connection in positive thread section and anti-thread section respectively.

2. A reinforcing bar connecting structure according to claim 1, wherein: the circumferential limiting part (10) comprises a plurality of limiting blocks (11) which are fixedly connected to the inner wall of the butting ring (9) and are in one-to-one correspondence sliding connection with the gaps between the two adjacent holding pieces (8).

3. A reinforcing bar connecting structure according to claim 1, wherein: spacing annular groove (6) that are cyclic annular extension along its circumference are seted up to drive sleeve (4) inner wall, the coaxial fixedly connected with of connecting sleeve (3) outer wall rotate connect in go-between (7) in spacing annular groove (6).

4. A reinforcing bar connecting structure according to claim 1, wherein: the cross section of the abutting ring (9) is semicircular.

5. A reinforcing bar connecting structure according to claim 1, wherein: embrace piece (8) inner wall fixedly connected with a plurality of beads (12), bead (12) with rib (13) of first reinforcing bar (1) or second reinforcing bar (2) outer wall cooperate.

6. A reinforcing bar connecting structure according to claim 1, wherein: the outer wall of the driving sleeve (4) is provided with friction grains.

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