CN204081275U - Spring compresses formula bar connecting assembly - Google Patents
Spring compresses formula bar connecting assembly Download PDFInfo
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- CN204081275U CN204081275U CN201420602266.9U CN201420602266U CN204081275U CN 204081275 U CN204081275 U CN 204081275U CN 201420602266 U CN201420602266 U CN 201420602266U CN 204081275 U CN204081275 U CN 204081275U
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Abstract
The utility model discloses spring compresses formula bar connecting assembly, comprise the first sleeve, first sleeve is divided into the reducing district and body zone that are connected to each other, the internal diameter size in reducing district becomes large gradually on the openend of the first sleeve to blind end direction, in first sleeve, helical spring is installed, helical spring is connected with multiple fixture block towards one end of openend, all fixture blocks put rounded array centered by any point on the first sleeve axis, also comprise the first reinforcing bar being inserted into the first sleeve inner from the first sleeve openend, fixture block is fastened between the outer diameter face of the first reinforcing bar and the aperture surface in reducing district, also obturator is provided with in first sleeve, wherein the cross section of fixture block possesses a hypotenuse and a vertical edge, the hypotenuse of fixture block and the aperture surface in reducing district extrude and are abutted against, the vertical edge of fixture block and the outer diameter face of the first reinforcing bar extrude is abutted against, the angle of hypotenuse and vertical edge is acute angle simultaneously.
Description
Technical field
The utility model relates to the utility model and relates to steel bar connecting structure, specifically relates to a kind of spring compresses formula bar connecting assembly and construction method thereof.
Background technology
In building construction technology, common are three kinds of bar connecting modes:
One, extrusion socket joint joint: make the plastic strain of connector steel bushing and Ribbed Bar closely be engaged the joint of formation by extruding force.Have two kinds of forms, radial compression connects and is connected with axial compression.Because axial compression connects, site operation is inconvenient and joint quality is stable not, is not promoted; And radial compression link technique, jointing obtains spread and uses.The extrusion socket joint joint used in present engineering is all that radial compression connects.Due to the quality that it is excellent, extrusion socket joint joint is widely used in construction work so far from twentieth century in China the beginning of the nineties.
Two, taper thread jointing: the joint that the tapered thread special by steel bar end and the occlusion of connector tapered thread are formed.The birth of taper threaded connection technique overcomes the deficiency of extrusion socket joint technology existence.Taper thread silk head is prefabricated in advance completely, and it is short that joint connection in site takies the duration, need use moment wrench operated, does not need equipment of moving and pull electric wire for on-the-spot, the dark favorable comment by each unit in charge of construction.But taper thread jointing quality is stable not.Path due to machining screw weakens the cross-sectional area of mother metal, thus reduces strength of joint, generally can only reach 85 ~ 95% of the actual tensile strength of mother metal.Certain gap is also there is abroad in the taper threaded connection technique of China with comparing, a most outstanding problem is exactly that pitch is single, pitch is adopted to be all 2.5mm from diameter 16 ~ 40mm reinforcing bar, and 2.5mm pitch is best suited for the connection of diameter 22mm reinforcing bar, too slightly or too the intensity that connects of fine steel rib is all undesirable, especially diameter is the taper thread connection of 36mm, 40mm reinforcing bar, is difficult to 0.9 times that reaches the actual tensile strength of mother metal.Many production units are called oneself and are reached parent material of reinforcement rebar normal intensity, are to make use of the superpower performance of parent material of reinforcement rebar, and namely the actual tensile strength of reinforcing bar is greater than the standard value of Steel Bar Tensile Strength.Because taper threaded connection technique has, speed of application is fast, joint cost is low, have also been obtained promoting the use of in a big way since twentieth century is promoted the beginning of the nineties, but due to the defect existed comparatively large, gradually replace by straight thread joint.
Three, straight thread joint equal strength straight thread joint is the up-to-date trend in the world of the twentieth century bar connecting nineties, joint quality is reliable and stable, bonding strength is high, can compare favourably with extrusion socket joint joint, and there is again taper thread joint easy construction, fireballing feature, therefore the appearance of straight thread joint technique brings qualitative leap to rebar connecting technology.Current China straight thread joint technique presents the scene that a hundred flowers blossom, has occurred multiple straight screw connection form.Straight thread joint mainly contains upsetting straight jointing and roll-press thread conjunction joint.These two kinds of techniques adopt different processing modes, the supporting capacity of reinforcing steel bar ends screw, reach the object that joint and parent material of reinforcement rebar etc. are strong.
There is an important defect in above-mentioned several mode, construction technology is complicated, long construction period, topmost reason adopts the mode be threaded to process, will produce the operation offering screw thread like this, and this operation processes bar splice position, because jumping-up process is carried out at general bar splice position, therefore the PROCESS FOR TREATMENT arranging screw thread after its jumping-up is again very complicated, this complicated construction technique and length consuming time, cost are high.
Utility model content
The purpose of this utility model is to provide a kind of spring compresses formula bar connecting assembly and construction method thereof, and this structure construction technique is simple, and fast, site assembly is fast in preparation, without the need to scene processing process component.
The purpose of this utility model is achieved through the following technical solutions: spring compresses formula bar connecting assembly, comprise the first sleeve possessing blind end and openend, first sleeve is divided into the reducing district and body zone that are connected to each other, reducing district is the openend of the first sleeve away from one end of body zone, body zone is the blind end of the first sleeve away from the one end in reducing district, the internal diameter size in reducing district becomes large gradually on the openend of the first sleeve to blind end direction, in first sleeve, helical spring is installed, helical spring is connected with multiple fixture block towards one end of openend, all fixture blocks put rounded array centered by any point on the first sleeve axis, also comprise the first reinforcing bar being inserted into the first sleeve inner from the first sleeve openend, fixture block is fastened between the outer diameter face of the first reinforcing bar and the aperture surface in reducing district, also obturator is provided with in first sleeve, wherein the cross section of fixture block possesses a hypotenuse and a vertical edge, the hypotenuse of fixture block and the aperture surface in reducing district extrude and are abutted against, the vertical edge of fixture block and the outer diameter face of the first reinforcing bar extrude is abutted against, the angle of hypotenuse and vertical edge is acute angle simultaneously.
The design principle of said structure is: can be found out by said structure, the utility model is that the multiple fixture block of assembling is fixed on helical spring one end, helical spring is placed in the first sleeve, the helical spring other end is fixed to the first sleeve lining, make the dead in line or parallel of helical spring axis and the first sleeve, fixture block is now positioned at reducing district, filling paste is adopted to be filled with in the first sleeve, before filling paste does not solidify, insert the first reinforcing bar, treat that fixture block first moves to the first sleeve blind end, then after moving to the first sleeve openend, final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face, filling paste is finally waited to solidify formation obturator, it is inner that first reinforcing bar inserts obturator.In above process, when the first reinforcing bar and fixture block extrude contact time, frictional force between first reinforcing bar and fixture block is F1, fixture block slides along the aperture surface in reducing district towards the first sleeve blind end direction, helical spring is compressed, along with the first reinforcing bar relies on frictional force constantly to drive fixture block to move down, the elastic force F that helical spring produces
bulletcontinuous increase, the inner diameter size along with reducing district constantly becomes large, and the frictional force F2 between the aperture surface in fixture block and reducing district constantly reduces, and frictional force F2 is F3, F3 and F1 sum at the component of the first sleeve axis direction is F
vertically, as elastic force F
bulletbe greater than F
verticallytime, fixture block starts reverse movement, and final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face.The utility model utilizes the large first set barrel structure of obturator and the little inside of opening to fix the first reinforcing bar, and the setting in reducing district just defines the large first set barrel structure in the little inside of opening, extract out in obturator to prevent the first reinforcing bar, the utility model just adopts above-mentioned special fixture block and helical spring combining structure to clamp the first reinforcing bar, above-mentioned first reinforcing bar that can make firmly inserts in the first sleeve, first reinforcing bar cannot be extracted out, it utilizes the interference fit of fixture block to make fixture block clamp the first reinforcing bar, and the utility model and traditional interference fit have very large difference, the utility model utilizes frictional force first that fixture block is built-in, rear utilize helical spring elastic force direction extrude fixture block join with interference and mode insert between the first reinforcing bar and the first sleeve, cannot extract out after installation is complete according to the fixture block of said structure design, therefore the stability of its structure is more superior compared with traditional assembly structure.The hypotenuse length of fixture block is less than the domatic length of reducing district aperture surface.
What the internal diameter size of the first sleeve of general structure was concrete can be: the internal diameter size of the first sleeve of general structure become gradually greatly on the openend of the first sleeve to blind end direction or become gradually large after remain unchanged or become gradually large after diminish.
The internal diameter size of body zone become gradually greatly on the openend of the first sleeve to blind end direction or become gradually large after remain unchanged or become gradually large after diminish or keep reducing district maximum inner diameter size constancy or diminish gradually.
The span of described acute angle is 15 degree to 60 degree.
When said structure of the present utility model also needs to arrange the second reinforcing bar thus forms 2 bar connecting, also comprise the second sleeve possessing blind end and openend, second sleeve is consistent with the opening direction of first set, also comprise screw rod, the openend of the second sleeve is inserted in one end of screw rod, the other end of screw rod inserts the blind end of the first sleeve, also comprises the second reinforcing bar, and second reinforcing bar one end is run through the blind end of the second sleeve and extended to the second sleeve inner.Preferably, the gap between the second sleeve and the first sleeve is zero, thus is beneficial to the stability that end contact strengthens the second sleeve and the first sleeve connection.
Preferably, also comprise multiple sleeve chock being positioned at the second reinforcing bar inside, one end that second reinforcing bar extends to the second sleeve inner is expansion arc portion, second reinforcing bar comprises expansion arc portion and extends to the epitaxy part of the second sleeve outside, expansion arc portion is a round platform post, one end of epitaxy part is connected with the miner diameter end end face one of round platform post, there is gap A between the expansion arc portion of the second reinforcing bar and the second sleeve diameter face, and sleeve chock is positioned at gap A and consistent with the form trait of gap A.
In said structure, second reinforcing bar is processed into standard or off-gauge component according to said structure at factory building, a through hole is offered at the second sleeve closes end, between the diameter of this through hole between the epitaxy part diameter of the second reinforcing bar and expansion arc portion large end face diameter, the diameter that can arrange through hole equals the epitaxy part diameter of the second reinforcing bar, the epitaxy part of the second reinforcing bar can be passed, now we assemble according to said structure, first sleeve chock is loaded in the second sleeve, at this moment, the openend direction of the epitaxy part of the second reinforcing bar from the second sleeve is inserted, make the epitaxy part of the second reinforcing bar through above-mentioned through hole, now, because through hole cannot pass in the expansion arc portion of the second reinforcing bar, therefore the expansion arc portion of the second reinforcing bar inserts between adjacent sleeve chock, the continuous compression sleeve chock in expansion arc portion of the second reinforcing bar, sleeve chock applies extruding force to the second sleeve lining simultaneously in the horizontal direction, in vertical direction extruding force is applied to the blind end of the second sleeve simultaneously, so can make the second reinforcing bar firm be arranged in the second sleeve, such Stability Analysis of Structures performance is good, and bonding strength is high, second reinforcing bar itself does not carry out threaded openings process, the structural strength of himself is high, not yielding, not easy to crack.
The bar connecting assembly of preferred the utility model design possesses following two kinds of set-up modes to sleeve chock, the first is block sleeve chock being arranged to cross section triangularity, the second is that sleeve chock is arranged to cross section block in echelon, and specific implementation means are as follows:
When the large end face diameter in the expansion arc portion of the second reinforcing bar equals the interior diameter of the second sleeve, the cross section of sleeve chock is right-angled triangle; Two right-angle sides of the cross section of sleeve chock are respectively blind end right-angle side A and sleeve lining right-angle side A, blind end right-angle side A is parallel with the Closed End of sleeve and be abutted against, sleeve lining right-angle side A and the second sleeve lining are abutted against, and the hypotenuse of the cross section of sleeve chock and the expansion arc portion of the second reinforcing bar are abutted against.Said structure can realize oblique extruding fast, makes the blind end region of the second sleeve realize distortion, strengthens bonding strength and improve overall stability.
Through test, we find when the lenth ratio of blind end right-angle side A and sleeve lining right-angle side A is more than or equal to 1:5, and the structural strength of the first reinforcing bar and upper bush is best, stability is best.
When the large end face diameter in the expansion arc portion of the second reinforcing bar is less than the second Sleeve Inner Diameter, the cross section of sleeve chock is trapezoidal; When the cross section of sleeve chock is trapezoidal, comprise the upper base A parallel with the blind end of the second sleeve and bottom A, also comprise the sleeve waist limit A be abutted against with the second sleeve lining, the oblique waist limit A be abutted against with the expansion arc portion of the second reinforcing bar, sleeve waist limit A is vertical with upper base A, sleeve waist limit A is vertical with bottom A, oblique waist limit A and upper base A forms acute angle, and oblique waist limit A and bottom A forms obtuse angle.Said structure can realize oblique extruding fast, makes the blind end region of the second sleeve realize distortion, strengthens bonding strength and improve overall stability.
The quantity of described sleeve chock or fixture block is 2 pieces to 6 pieces, and sleeve chock is arranged in the circumference in the expansion arc portion of the second reinforcing bar uniformly.
The concrete construction method of the utility model design said structure is: bar connecting assembly construction method, and comprise the bar connecting assembly described in claim, its construction method comprises the following steps:
Second reinforcing bar installation step: adopt the second reinforcing bar to run through the blind end of the second sleeve, one end of the second reinforcing bar is made to insert in the second sleeve, adopt screw rod to be threaded with the openend of the second sleeve, the other end of screw rod is inserted the blind end of the first sleeve and is threaded;
First reinforcing bar installation step: assemble multiple fixture block and be fixed on helical spring one end, helical spring is placed in the first sleeve, the helical spring other end is fixed to the first sleeve lining, make the dead in line or parallel of helical spring axis and the first sleeve, fixture block is now positioned at reducing district, filling paste is adopted to be filled with in the first sleeve, before filling paste does not solidify, insert the first reinforcing bar, treat that fixture block first moves to the first sleeve blind end, then after moving to the first sleeve openend, final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face, filling paste is finally waited to solidify formation obturator.
Before the second reinforcing bar runs through the blind end of the second sleeve,
Also comprise sleeve chock installation steps: adopt multiple sleeve chock to be placed into the second sleeve inner, sleeve chock is arranged according to circular array;
Also comprise the second reinforcing bar preparation process: by the process of one end of the second reinforcing bar by the unskilled workman's skill that rises, make thicker formation expansion arc portion, one end of the second reinforcing bar, now, second reinforcing bar comprises expansion arc portion and extends to the epitaxy part of the second sleeve outside, expansion arc portion is a round platform post, one end of epitaxy part is connected with the miner diameter end end face one of round platform post, and one end that the second reinforcing bar extends to the second sleeve inner is expansion arc portion;
After sleeve chock installation steps and the second reinforcing bar preparation process, the concrete steps of the second reinforcing bar assembling are: the epitaxy part of the second reinforcing bar inserts from the openend of the second sleeve, epitaxy part runs through the blind end of the second sleeve, the expansion arc portion of the second reinforcing bar inserts the circular array center of sleeve chock, expansion arc portion compression sleeve chock, causes sleeve chock to extrude the second sleeve lining.
Before screw rod and the second sleeve connection, filling paste is adopted to fill the second sleeve.
The utility model has the advantage of: this structure can provide a kind of quick, safety, simple syndeton and construction method, fast, site assembly is soon, without the need to scene processing process component, with low cost in preparation.
Accompanying drawing explanation
Fig. 1 be the first reinforcing bar and screw rod unassembled time cross-sectional structure figure.
Fig. 2 is the cross-sectional structure figure of the first reinforcing bar when just having inserted the first sleeve.
Fig. 3 is cross-sectional structure figure when having assembled.
Reference numeral in figure is expressed as: 1, the first reinforcing bar; 2, the first sleeve; 3, screw rod; 4, the second sleeve; 5, sleeve chock; 6, the second reinforcing bar; 7, fixture block; 8, helical spring; 9, switching nut; 10, obturator.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1-Figure 3.Fig. 1 be the first reinforcing bar and screw rod unassembled time cross-sectional structure figure, Fig. 2 cross-sectional structure figure that to be the cross-sectional structure figure of the first reinforcing bar when just having inserted the first sleeve, Fig. 3 be when having assembled.
Spring compresses formula bar connecting assembly, comprise the first sleeve 2 possessing blind end and openend, first sleeve is divided into the reducing district and body zone that are connected to each other, reducing district is the openend of the first sleeve 2 away from one end of body zone, body zone is the blind end of the first sleeve 2 away from the one end in reducing district, the internal diameter size in reducing district becomes large gradually on the openend of the first sleeve 2 to blind end direction, helical spring 8 is installed in first sleeve, helical spring 8 is connected with multiple fixture block 7 towards one end of openend, all fixture blocks put rounded array centered by any point on the first sleeve axis, also comprise the first reinforcing bar 1 being inserted into the first sleeve 2 inside from the first sleeve 2 openend, between the outer diameter face that fixture block 7 is fastened on the first reinforcing bar 1 and the aperture surface in reducing district, obturator 10 is also provided with in first sleeve 2, wherein the cross section of fixture block 7 possesses a hypotenuse and a vertical edge, the hypotenuse of fixture block 7 and the aperture surface in reducing district extrude and are abutted against, the vertical edge of fixture block 7 and the outer diameter face of the first reinforcing bar 1 extrude is abutted against, the angle of hypotenuse and vertical edge is acute angle simultaneously.
The design principle of said structure is: can be found out by said structure, the utility model is that the multiple fixture block of assembling is fixed on helical spring one end, helical spring is placed in the first sleeve, the helical spring other end is fixed to the first sleeve lining, make the dead in line or parallel of helical spring axis and the first sleeve, fixture block is now positioned at reducing district, filling paste is adopted to be filled with in the first sleeve, before filling paste does not solidify, insert the first reinforcing bar, treat that fixture block first moves to the first sleeve blind end, then after moving to the first sleeve openend, final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face, filling paste is finally waited to solidify formation obturator, it is inner that first reinforcing bar inserts obturator.In above process, when the first reinforcing bar and fixture block extrude contact time, frictional force between first reinforcing bar and fixture block is F1, fixture block slides along the aperture surface in reducing district towards the first sleeve blind end direction, helical spring is compressed, along with the first reinforcing bar relies on frictional force constantly to drive fixture block to move down, the elastic force F that helical spring produces
bulletcontinuous increase, the inner diameter size along with reducing district constantly becomes large, and the frictional force F2 between the aperture surface in fixture block and reducing district constantly reduces, and frictional force F2 is F3, F3 and F1 sum at the component of the first sleeve axis direction is F
vertically, as elastic force F
bulletbe greater than F
verticallytime, fixture block starts reverse movement, and final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face.The utility model utilizes the large first set barrel structure of obturator and the little inside of opening to fix the first reinforcing bar, and the setting in reducing district just defines the large first set barrel structure in the little inside of opening, extract out in obturator to prevent the first reinforcing bar, the utility model just adopts above-mentioned special fixture block and helical spring combining structure to clamp the first reinforcing bar, above-mentioned first reinforcing bar that can make firmly inserts in the first sleeve, first reinforcing bar cannot be extracted out, it utilizes the interference fit of fixture block to make fixture block clamp the first reinforcing bar, and the utility model and traditional interference fit have very large difference, the utility model utilizes frictional force first that fixture block is built-in, rear utilize helical spring elastic force direction extrude fixture block join with interference and mode insert between the first reinforcing bar and the first sleeve, cannot extract out after installation is complete according to the fixture block of said structure design, therefore the stability of its structure is more superior compared with traditional assembly structure.
What the internal diameter size of the first sleeve 2 of general structure was concrete can be: the internal diameter size of the first sleeve 2 of general structure become gradually greatly on the openend of the first sleeve 2 to blind end direction or become gradually large after remain unchanged or become gradually large after diminish.
The internal diameter size of body zone become gradually greatly on the openend of the first sleeve 2 to blind end direction or become gradually large after remain unchanged or become gradually large after diminish or keep reducing district maximum inner diameter size constancy or diminish gradually.
The span of described acute angle is 15 degree to 60 degree.
When said structure of the present utility model also needs to arrange the second reinforcing bar thus forms 2 bar connecting, also comprise the second sleeve 4 possessing blind end and openend, second sleeve 4 is consistent with the opening direction of first set, also comprise screw rod 3, the openend of the second sleeve 4 is inserted in one end of screw rod 3, the other end of screw rod 3 inserts the blind end of the first sleeve 2, also comprises second reinforcing bar 6, second reinforcing bar 6 one end and runs through the blind end of the second sleeve 4 and extend to the second sleeve 4 inside.Preferably, the gap between the second sleeve 4 and the first sleeve is zero, thus is beneficial to the stability that end contact strengthens the second sleeve 4 and the first sleeve connection.
Preferably, also comprise multiple sleeve chock 5 being positioned at the second reinforcing bar 6 inside, one end that second reinforcing bar 6 extends to the second sleeve 4 inside is expansion arc portion, second reinforcing bar 6 comprises expansion arc portion and extends to the epitaxy part of the second sleeve 4 outside, expansion arc portion is a round platform post, one end of epitaxy part is connected with the miner diameter end end face one of round platform post, there is gap A between the expansion arc portion of the second reinforcing bar 6 and the second sleeve 4 aperture surface, and sleeve chock 5 is positioned at gap A and consistent with the form trait of gap A.
In said structure, second reinforcing bar 6 is processed into standard or off-gauge component according to said structure at factory building, a through hole is offered at the second sleeve 4 blind end, between the diameter of this through hole between the epitaxy part diameter of the second reinforcing bar 6 and expansion arc portion large end face diameter, the diameter that can arrange through hole equals the epitaxy part diameter of the second reinforcing bar 6, the epitaxy part of the second reinforcing bar 6 can be passed, now we assemble according to said structure, first sleeve chock 5 is loaded in the second sleeve 4, at this moment, the openend direction of the epitaxy part of the second reinforcing bar 6 from the second sleeve 4 is inserted, make the epitaxy part of the second reinforcing bar 6 through above-mentioned through hole, now, because through hole cannot pass in the expansion arc portion of the second reinforcing bar 6, therefore the expansion arc portion of the second reinforcing bar 6 inserts between adjacent sleeve chock, the continuous compression sleeve chock in expansion arc portion of the second reinforcing bar 6, sleeve chock applies extruding force to the second sleeve 4 inwall simultaneously in the horizontal direction, in vertical direction extruding force is applied to the blind end of the second sleeve 4 simultaneously, so can make the second reinforcing bar 6 firm be arranged in the second sleeve 4, such Stability Analysis of Structures performance is good, and bonding strength is high, second reinforcing bar 6 itself does not carry out threaded openings process, the structural strength of himself is high, not yielding, not easy to crack.
The bar connecting assembly of preferred the utility model design possesses following two kinds of set-up modes to sleeve chock, the first is block sleeve chock being arranged to cross section triangularity, the second is that sleeve chock is arranged to cross section block in echelon, and specific implementation means are as follows:
When the large end face diameter in the expansion arc portion of the second reinforcing bar 6 equals the interior diameter of the second sleeve 4, the cross section of sleeve chock 5 is right-angled triangle; Two right-angle sides of the cross section of sleeve chock 5 are respectively blind end right-angle side A and sleeve lining right-angle side A, blind end right-angle side A is parallel with the Closed End of sleeve and be abutted against, sleeve lining right-angle side A and the second sleeve 4 inwall are abutted against, and the hypotenuse of the cross section of sleeve chock 5 and the expansion arc portion of the second reinforcing bar 6 are abutted against.Said structure can realize oblique extruding fast, makes the blind end region of the second sleeve realize distortion, strengthens bonding strength and improve overall stability.
Through test, we find when the lenth ratio of blind end right-angle side A and sleeve lining right-angle side A is more than or equal to 1:5, and the structural strength of the first reinforcing bar and upper bush is best, stability is best.
When the large end face diameter in the expansion arc portion of the second reinforcing bar 6 is less than the second sleeve 4 interior diameter, the cross section of sleeve chock 5 is trapezoidal; When the cross section of sleeve chock 5 is trapezoidal, comprise the upper base A parallel with the blind end of the second sleeve 4 and bottom A, also comprise the sleeve waist limit A be abutted against with the second sleeve 4 inwall, the oblique waist limit A be abutted against with the expansion arc portion of the second reinforcing bar 6, sleeve waist limit A is vertical with upper base A, sleeve waist limit A is vertical with bottom A, oblique waist limit A and upper base A forms acute angle, and oblique waist limit A and bottom A forms obtuse angle.Said structure can realize oblique extruding fast, makes the blind end region of the second sleeve realize distortion, strengthens bonding strength and improve overall stability.
The quantity of described sleeve chock 5 or fixture block 7 is 2 pieces to 6 pieces, and sleeve chock 5 is arranged in the circumference in the expansion arc portion of the second reinforcing bar 6 uniformly.
Embodiment 2
Concrete construction method for above-described embodiment is: bar connecting assembly construction method, and comprise the bar connecting assembly described in claim, its construction method comprises the following steps: as Fig. 1,
Second reinforcing bar installation step: adopt the second reinforcing bar to run through the blind end of the second sleeve, one end of the second reinforcing bar is made to insert in the second sleeve, adopt screw rod to be threaded with the openend of the second sleeve, the other end of screw rod is inserted the blind end of the first sleeve and is threaded;
As Fig. 2, first reinforcing bar installation step: assemble multiple fixture block and be fixed on helical spring one end, helical spring is placed in the first sleeve, the helical spring other end is fixed to the first sleeve lining, make the dead in line or parallel of helical spring axis and the first sleeve, fixture block is now positioned at reducing district, filling paste is adopted to be filled with in the first sleeve, before filling paste does not solidify, insert the first reinforcing bar, treat that fixture block first moves to the first sleeve blind end, then after moving to the first sleeve openend, as Fig. 3, final fixture block is stuck between the aperture surface in reducing district and the first reinforcing bar outer diameter face, filling paste is finally waited to solidify formation obturator.
As Fig. 1, before the second reinforcing bar runs through the blind end of the second sleeve,
Also comprise sleeve chock 5 installation steps: adopt multiple sleeve chock 5 to be placed into the second sleeve inner, sleeve chock 5 is arranged according to circular array;
Also comprise the second reinforcing bar preparation process: by the process of one end of the second reinforcing bar by the unskilled workman's skill that rises, make thicker formation expansion arc portion, one end of the second reinforcing bar, now, second reinforcing bar 6 comprises expansion arc portion and extends to the epitaxy part of the second sleeve 4 outside, expansion arc portion is a round platform post, one end of epitaxy part is connected with the miner diameter end end face one of round platform post, and one end that the second reinforcing bar 6 extends to the second sleeve 4 inside is expansion arc portion;
After sleeve chock 5 installation steps and the second reinforcing bar preparation process, the concrete steps that second reinforcing bar 6 assembles are: the epitaxy part of the second reinforcing bar 6 inserts from the openend of the second sleeve 4, epitaxy part runs through the blind end of the second sleeve 4, the expansion arc portion of the second reinforcing bar 6 inserts the circular array center of sleeve chock 5, expansion arc portion compression sleeve chock 5, causes sleeve chock 5 to extrude the second sleeve 4 inwall.
Can also, before screw rod and the second sleeve connection, filling paste be adopted to fill the second sleeve.Above-mentioned filling paste can adopt the inserts of cement based.
As mentioned above, then well the utility model can be realized.
Claims (9)
1. spring compresses formula bar connecting assembly, it is characterized in that: comprise the first sleeve (2) possessing blind end and openend, first sleeve is divided into the reducing district and body zone that are connected to each other, reducing district is the openend of the first sleeve (2) away from one end of body zone, body zone is the blind end of the first sleeve (2) away from the one end in reducing district, the internal diameter size in reducing district becomes large gradually on the openend of the first sleeve (2) to blind end direction, helical spring (8) is installed in the first sleeve, helical spring (8) is connected with multiple fixture block (7) towards one end of openend, all fixture blocks put rounded array centered by any point on the first sleeve axis, also comprise and be inserted into inner the first reinforcing bar (1) of the first sleeve (2) from the first sleeve (2) openend, between the outer diameter face that fixture block (7) is fastened on the first reinforcing bar (1) and the aperture surface in reducing district, obturator (10) is also provided with in first sleeve (2), wherein the cross section of fixture block (7) possesses a hypotenuse and a vertical edge, the hypotenuse of fixture block (7) and the aperture surface in reducing district extrude and are abutted against, the vertical edge of fixture block (7) and the outer diameter face of the first reinforcing bar (1) extrude is abutted against, the angle of hypotenuse and vertical edge is acute angle simultaneously.
2. spring compresses formula bar connecting assembly according to claim 1, is characterized in that: the internal diameter size of body zone become gradually greatly on the openend of the first sleeve (2) to blind end direction or become gradually large after remain unchanged or become gradually large after diminish or keep reducing district maximum inner diameter size constancy or diminish gradually.
3. spring compresses formula bar connecting assembly according to claim 1, it is characterized in that: also comprise the second sleeve (4) possessing blind end and openend, second sleeve (4) is consistent with the opening direction of first set, also comprise screw rod (3), the openend of the second sleeve (4) is inserted in one end of screw rod (3), the other end of screw rod (3) inserts the blind end of the first sleeve (2), also comprise the second reinforcing bar (6), the second reinforcing bar (6) one end is run through the blind end of the second sleeve (4) and is extended to the second sleeve (4) inside.
4. spring compresses formula bar connecting assembly according to claim 3, it is characterized in that: also comprise multiple sleeve chock (5) being positioned at the second reinforcing bar (6) inside, one end that second reinforcing bar (6) extends to the second sleeve (4) inner is expansion arc portion, second reinforcing bar (6) comprises expansion arc portion and extends to the outside epitaxy part of the second sleeve (4), expansion arc portion is a round platform post, one end of epitaxy part is connected with the miner diameter end end face one of round platform post, gap A is there is between the expansion arc portion of the second reinforcing bar (6) and the second sleeve (4) aperture surface, sleeve chock (5) is positioned at gap A and consistent with the form trait of gap A.
5. spring compresses formula bar connecting assembly according to claim 4, it is characterized in that: when the large end face diameter in the expansion arc portion of the second reinforcing bar (6) equals the interior diameter of the second sleeve (4), the cross section of sleeve chock (5) is right-angled triangle; Two right-angle sides of the cross section of sleeve chock (5) are respectively blind end right-angle side A and sleeve lining right-angle side A, blind end right-angle side A is parallel with the Closed End of sleeve and be abutted against, sleeve lining right-angle side A and the second sleeve (4) inwall are abutted against, and the hypotenuse of the cross section of sleeve chock (5) and the expansion arc portion of the second reinforcing bar (6) are abutted against.
6. bar connecting assembly according to claim 5, is characterized in that: the lenth ratio of blind end right-angle side A and sleeve lining right-angle side A is more than or equal to 1:5.
7. bar connecting assembly according to claim 4, is characterized in that: when the large end face diameter in the expansion arc portion of the second reinforcing bar (6) is less than the second sleeve (4) interior diameter, and the cross section of sleeve chock (5) is trapezoidal; When the cross section of sleeve chock (5) is trapezoidal, comprise the upper base A parallel with the blind end of the second sleeve (4) and bottom A, also comprise the sleeve waist limit A be abutted against with the second sleeve (4) inwall, the oblique waist limit A be abutted against with the expansion arc portion of the second reinforcing bar (6), sleeve waist limit A is vertical with upper base A, sleeve waist limit A is vertical with bottom A, oblique waist limit A and upper base A forms acute angle, and oblique waist limit A and bottom A forms obtuse angle.
8. according to the bar connecting assembly in claim 4 to 7 described in any one, it is characterized in that: the quantity of described sleeve chock (5) or fixture block (7) is 2 pieces to 6 pieces, and sleeve chock (5) is arranged in the circumference in the expansion arc portion of the second reinforcing bar (6) uniformly.
9. bar connecting assembly as claimed in any of claims 1 to 7, is characterized in that: the span of described acute angle is 15 degree to 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602266.9U CN204081275U (en) | 2014-10-17 | 2014-10-17 | Spring compresses formula bar connecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602266.9U CN204081275U (en) | 2014-10-17 | 2014-10-17 | Spring compresses formula bar connecting assembly |
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| Publication Number | Publication Date |
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| CN204081275U true CN204081275U (en) | 2015-01-07 |
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| CN201420602266.9U Expired - Fee Related CN204081275U (en) | 2014-10-17 | 2014-10-17 | Spring compresses formula bar connecting assembly |
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| Country | Link |
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| CN (1) | CN204081275U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295006A (en) * | 2014-10-17 | 2015-01-21 | 四川省建筑科学研究院 | Spring extrusion type steel bar connecting component and construction method thereof |
| CN104831869A (en) * | 2015-04-13 | 2015-08-12 | 吴方华 | Semi grouting bush |
| CN107419896A (en) * | 2017-05-02 | 2017-12-01 | 中国建筑第八工程局有限公司 | The compressible joist and its construction method of the prefabricated cast-in-place formwork of plate edge joint position |
| CN109025073A (en) * | 2018-09-06 | 2018-12-18 | 上海市城市建设设计研究总院（集团）有限公司 | Prefabricated components flower basket type reinforcing bar connector |
| CN113107182A (en) * | 2021-04-25 | 2021-07-13 | 湖南大学 | Safe and reliable welding-free closed flower basket type adjusting pull rod |
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2014
- 2014-10-17 CN CN201420602266.9U patent/CN204081275U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295006A (en) * | 2014-10-17 | 2015-01-21 | 四川省建筑科学研究院 | Spring extrusion type steel bar connecting component and construction method thereof |
| CN104295006B (en) * | 2014-10-17 | 2016-06-22 | 四川省建筑科学研究院 | Spring squash type bar connecting assembly and construction method thereof |
| CN104831869A (en) * | 2015-04-13 | 2015-08-12 | 吴方华 | Semi grouting bush |
| CN107419896A (en) * | 2017-05-02 | 2017-12-01 | 中国建筑第八工程局有限公司 | The compressible joist and its construction method of the prefabricated cast-in-place formwork of plate edge joint position |
| CN107419896B (en) * | 2017-05-02 | 2023-05-02 | 中国建筑第八工程局有限公司 | Compressible joist for cast-in-situ formwork at assembly type precast slab joint and construction method thereof |
| CN109025073A (en) * | 2018-09-06 | 2018-12-18 | 上海市城市建设设计研究总院（集团）有限公司 | Prefabricated components flower basket type reinforcing bar connector |
| CN113107182A (en) * | 2021-04-25 | 2021-07-13 | 湖南大学 | Safe and reliable welding-free closed flower basket type adjusting pull rod |
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