CN206769207U - Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool - Google Patents
Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool Download PDFInfo
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- CN206769207U CN206769207U CN201720389685.2U CN201720389685U CN206769207U CN 206769207 U CN206769207 U CN 206769207U CN 201720389685 U CN201720389685 U CN 201720389685U CN 206769207 U CN206769207 U CN 206769207U
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- 238000000641 cold extrusion Methods 0.000 title claims abstract description 32
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 title claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 description 43
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
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Abstract
It the utility model is related to a kind of combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool.Cold extrusion reinforcing steel bar connecting sleeve tube in combined type axial direction includes inner sleeve and overcoat, and inner sleeve has inner sleeve sleeve part, and inner sleeve sleeve part is the complete tubular run through along the length direction of inner sleeve sleeve part；Overcoat has overcoat sleeve part, overcoat sleeve part is the tubular run through along the length direction of overcoat sleeve part, one end of the inner surface of overcoat sleeve part is provided with inner taper, the diameter of the outer end of the length direction along inner sleeve sleeve part of inner taper is more than the inner diameter of the length direction along inner sleeve sleeve part of inner taper, and the rigidity of overcoat is more than the rigidity of inner sleeve.The combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube can improve the efficiency of construction of engineering, construction quality be improved, suitable for the different type of attachment such as overall and single.
Description
Technical field
The bar connecting application technology that the utility model belongs in bar connecting application and prefabricated components in building structure.
More particularly to combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool.
Background technology
Existing steel concrete supporting mode mainly has straight screw sleeve connection, grouting joint connection, Radial Cold Extrusion connection
Joint.
Two reinforcing bars are tightened and reached mainly by processing screw thread on reinforcing bar by threaded connection by internal thread of sleeve
Connection effect.Which needs screwing steel bars, increases process, waste of time, and reinforcing bar error range is big, and screw processing quality is difficult
System, integrated connection efficiency of construction is low, and installation quality is difficult to manage control.
Grouting joint is connected by irrigating cement special grouting material in sleeve with spiral, is reached after slurry condensation
Connection effect.Which needs pre-cast concrete slurry, the difficult control slurry service life of site operation, and can not enter within 8 hours after installing
Row subsequent construction intervention, preventing, which influences slurry, condenses.Staff needs Special Training, and technique is cumbersome, the difficult control of quality.
Traditional cold extruded sleeve barrel dliameter radially extrudes branch sleeve to extruder is connected through, and is deformed sleeve,
It is mutually twisted with reinforcing bar, reaches connection purpose.Which requires higher to live reinforcing bar axiality, and easy in joint during extruding
Produce bending, hardly possible control.Extruder is excessively heavy, is only applicable to single connection, and the connected mode is less efficient, wastes work
When.
The content of the invention
The utility model is overcomes technical problem present in prior art to provide a kind of combined type axial direction cold-extruded compressed steel
Muscle branch sleeve, the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube can improve the efficiency of construction of engineering, improve construction quality, fit
For the different type of attachment such as overall and single.
Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube, including inner sleeve and overcoat, inner sleeve have inner sleeve sleeve part, inner sleeve set
Cylinder portion is the complete tubular run through along the length direction of inner sleeve sleeve part；
Overcoat has an overcoat sleeve part, and overcoat sleeve part is the tubular run through along the length direction of overcoat sleeve part, overcoat
One end of the inner surface of sleeve part is provided with inner taper, the diameter of the outer end of the length direction along inner sleeve sleeve part of inner taper
More than the inner diameter of the length direction along inner sleeve sleeve part of inner taper, the rigidity of the overcoat is more than the inner sleeve
Rigidity.
By setting inner sleeve and overcoat, and the internal diameter of the overcoat sleeve part of overcoat is less than the outer of the inner sleeve sleeve part of inner sleeve
Footpath, extruding of the overcoat to inner sleeve is realized using the relative slip of inner sleeve and overcoat, to cause the diameter of the inner sleeve of inner sleeve gradually to contract
It is small, contact and be plastically deformed with connected reinforcing bar so that the two gradually closely contact, and the position being in close contact
Gradually increase, so as to which the two of docking piece reinforcing bar flank is all embedded on the inwall of inner sleeve, will not also occur relative
Slide.
Due to be using the disposable effect of hydraulic cylinder can complete connected reinforcing bar on connected position it is complete
The clamping of minister's degree, so efficiency connecting method for reinforcing bars more of the prior art increases significantly, reinforcing bar can be greatly shortened
The engineering construction time.
In addition, this product, compared to production is simple on the market now, yield is high, and low cost, raw material easily take.Installation letter
Single, quality can ensure that impacted factor is few.Improve engineering construction efficiency, hence it is evident that shorten the reinforcement engineering construction time.Available for work
Single steel bar connection is also applied for the mode such as heavy construction integrated connection and assembled architecture integrated connection in journey.It is cheap,
Installation tool is light and handy.
Preferable technical scheme, its additional technical feature are：One end of inner sleeve sleeve part sets male-tapered portion or circular arc
Chamfering, the other end in inner sleeve portion also set up outside flange portion, the outer end of the length direction along inner sleeve sleeve part in male-tapered portion
Diameter is less than the inner diameter of the length direction along inner sleeve sleeve part in male-tapered portion.
When one end is male-tapered portion, when one end is flange portion, it is only necessary to which outer sleeve is set at one end, you can complete extruding and make
Industry.
Preferable technical scheme, its additional technical feature are：The both ends of inner sleeve sleeve part are respectively provided with male-tapered portion or circle
Arc chamfering, the diameter of the outer end of the length direction along inner sleeve sleeve part in male-tapered portion be less than male-tapered portion along inner sleeve sleeve part
Length direction inner diameter.
When setting male-tapered portion using both ends, outer sleeve can be promoted respectively from both ends, it is possible to improve in compression
The speed of sleeve.
Preferable technical scheme, its additional technical feature are：The diameter of the smallest end of the inner taper of overcoat is more than interior
The diameter of the smallest end in the male-tapered portion of set.
When causing the diameter of the smallest end of inner taper of overcoat to be more than the diameter of the smallest end in the male-tapered portion of inner sleeve,
The compression degree of inner sleeve can be controlled, avoid compression degree it is excessive caused by unnecessary compression load burden, while
It can ensure that reinforcing bar, inner sleeve etc. will not be damaged because stress is excessive.
Further preferred technical scheme, its additional technical feature are：The middle part of inner sleeve outer circumference surface is provided with annular shaft
Platform.
By setting annular shaft platform, the compression degree that overcoat is put inside can be limited, as long as ensureing that inner sleeve has with reinforcing bar
Sufficiently contact, is in contact in itself without two overcoats are all pushed into two overcoats.
Preferable technical scheme, its additional technical feature are：Inner taper and the coning angle in male-tapered portion be 10 °~
170 °, the length of male-tapered portion and inner taper is 3~50mm.
When the coning angle angle and length of male-tapered portion and inner taper are above-mentioned numerical value, can not only ensure inner sleeve and
Overcoat can easily align, but also active force when can control compression, to control the load of hydraulic cylinder.
Preferable technical scheme, its additional technical feature are：Fallen provided with closing in one end of the remote inner taper of overcoat
Angle, the coning angle of closing in chamfering is 10 °~170 °, and the length of closing in chamfering is 3~50mm.
By setting closing in chamfering, it can significantly expand the resistance run into when inner taper is advanced, to limit inner cone
The forward travel distance in shape portion, avoid inner taper advance it is excessive and caused by time and the energy waste.
Preferable technical scheme, its additional technical feature are：The outer surface of inner sleeve sleeve part is provided with axial fin, axially
Fin axially extends, and the surface of the end face towards inner sleeve sleeve part of axial fin is the extension in male-tapered portion.
By setting axial fin in the outside of inner sleeve sleeve part, when the inner taper of overcoat is squeezed to inner sleeve sleeve part
During pressure, axial fin can be flattened, and then can be produced on the inwall of inner sleeve sleeve part towards the inner sleeve sleeve part cross section center of circle
Fin, equally can produce larger compressive deformation in the non-threaded position of reinforcing bar, can also prevent reinforcing bar from occurring with inner sleeve
Relative displacement.It is wedge contact to be additionally, since between caused fin and the reinforcing bar of deformation, can significantly improve inner sleeve and reinforcing bar
Between friction force, can also improve confrontation inner sleeve and reinforcing bar between displacement ability.
Containing above-mentioned combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool, including on sleeve under keeper and sleeve
Keeper, keeper is set in the both ends for two outer sleeves for being located at inner sleeve both ends on keeper and sleeve on sleeve,
Keeper is connected with pressing plate respectively under keeper and sleeve on sleeve, and each pressing plate is connected with the piston rod of hydraulic cylinder, respectively
The relatively-stationary setting of hydraulic cylinder above and below combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube.
By setting hydraulic cylinder jointly from upper and lower both direction, outer sleeve can be promoted jointly from both direction to inner sleeve
Middle part movement, to improve extrusion speed, improve the operating efficiency of bar connecting operation.
Contain above-mentioned combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool, including keeper and sleeve on sleeve
Lower keeper, keeper is sleeved on the outside of an outer sleeve on sleeve, and keeper is sleeved on another outer sleeve under sleeve
Outside or the outside of inner sleeve, keeper is connected with pressing plate on sleeve, and each pressing plate is connected with the piston rod of hydraulic cylinder, is located at
Pressing plate and the relatively-stationary setting of hydraulic cylinder under sleeve on the outside of keeper.
When only setting keeper in a direction of inner sleeve, sleeve keeper can be set in one direction, in favor of
Bar connecting is realized in shorter length, while two hydraulic cylinders can also be avoided to extrude reinforcement displacement caused by possibility jointly
The problem of.
Brief description of the drawings
Fig. 1 is the sectional view of the overcoat of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube of embodiment 1；
Fig. 2 is the sectional view of the inner sleeve in embodiment 1；
Fig. 3 is the sectional view that embodiment 1 is sleeved on reinforcing bar.
Fig. 4 is the sectional view of the cross section of the inner sleeve in embodiment 2；
Fig. 5 is the sectional view for the cross section that the inner sleeve in embodiment 2 is stuck on reinforcing bar；
Fig. 6 is the sectional view along reinforcing bar axis direction cutting that the inner sleeve in embodiment 2 is stuck on reinforcing bar.
Fig. 7 is the sectional view of the inner sleeve in embodiment 3；
Fig. 8 is that the coat suit in embodiment 3 puts the schematic diagram for internally covering and being extruded inside.
Fig. 9 is the structural representation of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool of embodiment 4.
Figure 10 is the structural representation of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool of embodiment 5.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and in detail
It is described as follows：
Embodiment 1：
Fig. 1 is the sectional view of the overcoat of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube of embodiment 1；Fig. 2 is embodiment 1
In inner sleeve sectional view；Fig. 3 is the sectional view that embodiment 1 is sleeved on reinforcing bar.In figure, the expression implication of each mark is such as
Under：
11st, inner sleeve sleeve part；12nd, male-tapered portion；2nd, overcoat；21st, inner taper；22nd, closing in chamfering.
Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube, including inner sleeve and overcoat 2, inner sleeve has inner sleeve sleeve part 11, interior
Sleeve part 11 is covered for the complete tubular run through along the length direction of inner sleeve sleeve part 11, the outer surface of inner sleeve sleeve part 11
At least one end be provided with male-tapered portion 12, the diameter of the outer end of the length direction along inner sleeve sleeve part 11 in male-tapered portion 12 is less than
The inner diameter of the length direction along inner sleeve sleeve part 11 in male-tapered portion 12；
Overcoat 2 has the sleeve part of overcoat 2, and the sleeve part of overcoat 2 is the tubular run through along the length direction of the sleeve part of overcoat 2,
One end of the inner surface of the sleeve part of overcoat 2 is provided with inner taper 21, the length direction along inner sleeve sleeve part 11 of inner taper 21
Outer end diameter be more than inner taper 21 the length direction along inner sleeve sleeve part 11 inner diameter, the wall thickness of overcoat is
More than 1.5 times of the wall thickness of inner sleeve.
By setting inner sleeve and overcoat 2, extruding of the overcoat 2 to inner sleeve is realized using the relative slip of inner sleeve and overcoat 2, with
So that the reduced diameter of the inwall of inner sleeve, contacts and is plastically deformed with connected reinforcing bar so that the two is gradually tight
Close contact, and the position being in close contact gradually is increased, so as to which the two of docking piece reinforcing bar flank is all embedded into inner sleeve
On the inwall of cylinder, relative slip will not also occur.
Due to be using the disposable effect of hydraulic cylinder 5 can complete connected reinforcing bar on connected position it is complete
The clamping of minister's degree, so efficiency connecting method for reinforcing bars more of the prior art increases significantly, reinforcing bar can be greatly shortened
The engineering construction time.
In addition, this product, compared to production is simple on the market now, yield is high, and low cost, raw material easily take.Installation letter
Single, quality reaches a standard, and integrated connection and single connection available for reinforced bar engineering, cheap, installation tool is light and handy.
Preferable technical scheme, its additional technical feature are：The both ends of inner sleeve sleeve part 11 are respectively provided with male-tapered portion 12.
When setting male-tapered portion 12 using both ends, 2, overcoat can be promoted respectively from both ends, it is possible to improve compression
The speed of inner sleeve.
Preferably, the diameter of the smallest end of the inner taper 21 of overcoat 2 is more than the smallest end in the male-tapered portion 12 of inner sleeve
Diameter.
When the diameter of the smallest end for the inner taper 21 for causing overcoat 2 is more than the straight of the smallest end in the male-tapered portion 12 of inner sleeve
During footpath, the compression degree of inner sleeve can be controlled, avoid compression degree it is excessive caused by unnecessary compression load burden, together
When it is also ensured that reinforcing bar, inner sleeve etc. will not be damaged because stress is excessive.
It is further preferred that the middle part of inner sleeve outer circumference surface is provided with annular shaft platform.
By setting annular shaft platform, the compression degree that overcoat 2 is put inside can be limited, as long as ensureing that inner sleeve has with reinforcing bar
Sufficiently contact, it is in contact in itself without two overcoats 2 all are pushed into two overcoats 2.
Preferably, the outer end in inner taper 21 and male-tapered portion 12 is provided with leader chamfering, and the coning angle for chamfering of taking the lead is 10 °
~170 °, the length for chamfering of taking the lead is 3~50mm.
By setting chamfering of taking the lead, can reduce for the requirement for aligning precision between inner sleeve and overcoat 2.Even if the two
Between positioning it is slightly worse, inner sleeve is aligned with overcoat 2 in the progradation of overcoat 2 by chamfering of taking the lead,
Shorten and position the consumed time, so as to improve processing efficiency.
Preferably, one end of the remote inner taper 21 of overcoat 2 is provided with closing in chamfering 22, and the coning angle of closing in chamfering 22 is
10 °~170 °, the length of closing in chamfering 22 is 3~50mm.
By setting closing in chamfering 22, it can significantly expand the resistance run into when inner taper 21 is advanced, with limitation
The forward travel distance of inner taper 21, avoid inner taper 21 advance it is excessive and caused by time and the energy waste.
The operating principle of the present embodiment is：
When overcoat 2 is promoted by external force to the middle part of inner sleeve, due in the outer end of outer tapered portion 12 and inner taper 21
Outer end is provided with leader chamfering, it is possible to conveniently so that the outer end of overcoat 2 is enclosed on the outer end of inner sleeve, accelerates
Position fixing process.Then, the propulsion with the inner taper 21 of overcoat 2 in the male-tapered portion 12 of inner sleeve, the male-tapered portion of inner sleeve
12 in close reinforcing bar progressively, and is compressed on reinforcing bar.Meanwhile inner sleeve inner wall surface and reinforcing bar outer wall surface also all
Deformation is produced, until the two fitting completely, produces therebetween larger thrust.
At the end of the inner taper 21 of overcoat 2 is slided in the male-tapered portion 12 of inner sleeve, it also may proceed to compress inner sleeve sleeve
Portion 11, to cause the inwall of inner sleeve sleeve part 11 to be bonded completely with rebar surface, and the strength of enough holding reinforcing bars is produced,
To cause relative displacement will not occur between two reinforcing bars.
When in moving process, when closing in chamfering 22 runs into male-tapered portion 12, because inner sleeve has been carried out largely
Compression, male-tapered portion 12 can not continue to contract, and overcoat 2 is also difficult to expand outwardly.So inner sleeve and the phase of overcoat 2
Movement can be stopped, so as to complete terminal operation.
Embodiment 2：
Fig. 4 is the sectional view of the cross section of the inner sleeve in embodiment 2；Fig. 5 is that the inner sleeve in embodiment 2 is stuck on reinforcing bar
The sectional view of cross section；Fig. 6 is the sectional view along reinforcing bar axis direction cutting that the inner sleeve in embodiment 2 is stuck on reinforcing bar.Figure
In, marked with the accompanying drawing identical of embodiment 1, still continue to use definition of the embodiment 1 to the mark.Emerging each mark expression contains
Justice is as follows：13rd, axial fin.
The difference of the present embodiment and above-described embodiment is：The outer surface of inner sleeve sleeve part 11 is provided with axial fin
13, axial fin 13 axially extends, and the surface of the end face towards inner sleeve sleeve part 11 of axial fin 13 is male-tapered portion 12
Extension.Specifically, axial fin 13 can be uniformly distributed in the circumference of the outer surface of inner sleeve sleeve part 11.
By setting axial fin 13 in the outside of inner sleeve sleeve part 11, when the inner taper 21 of overcoat 2 is to inner sleeve sleeve
When portion 11 is extruded, axial fin 13 can be compressed to the axis direction of inner sleeve, and then on the inwall of inner sleeve sleeve part 11
The fin towards the cross section center of circle of inner sleeve sleeve part 11 can be produced, the fin can also be embedded into the surface of reinforcing bar, can be in steel
The non-threaded position of muscle produces larger compressive deformation, can also prevent reinforcing bar from relative displacement occurs with inner sleeve.It is additionally, since production
It is wedge contact between raw fin and the reinforcing bar of deformation, can significantly improves the friction force between inner sleeve and reinforcing bar,
The ability of displacement between confrontation inner sleeve and reinforcing bar can be improved.
Embodiment 3：
Fig. 7 is the sectional view of the inner sleeve in embodiment 3；Coat suit in Fig. 8 embodiments 3 puts internally set and carried out inside
The schematic diagram of extruding.In figure, marked with the accompanying drawing identical of embodiment 1, still continue to use definition of the embodiment 1 to the mark.It is new to occur
Each mark represent implication it is as follows：14th, outside flange portion.
The present embodiment and the difference of embodiment 1 are：One end of inner sleeve sleeve part 11 sets male-tapered portion 12, inner sleeve
The other end in cylinder portion also sets up outside flange portion 14.
When one end is male-tapered portion 12, when one end is flange portion, it is only necessary to which 2, overcoat is set at one end, you can complete to squeeze
Press operation.
Embodiment 4：
Fig. 9 is the structural representation of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool of embodiment 4.It is new to occur
Each mark represent implication it is as follows：3rd, pressing plate；4th, keeper under sleeve；5th, hydraulic cylinder；51st, piston rod；52nd, piston；7th, cover
Keeper on cylinder.
Containing above-mentioned combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool, including keeper 7 and sleeve on sleeve
Lower keeper 4, keeper 7 is set in 2, two overcoats being located at inner sleeve both ends on keeper 7 and sleeve on sleeve
Both ends, keeper 4 is connected with pressing plate 3 respectively under keeper 7 and sleeve on sleeve, piston rod of each pressing plate 3 with hydraulic cylinder 5
51 connections, piston 52 are slidably arranged in hydraulic cylinder 5, respectively above combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube with
The 5 relatively-stationary setting of hydraulic cylinder of side.Particularly, hydraulic cylinder 5 above and underlying is installed in one altogether
On same rigid support.Particularly, the relative movement of jacket and inner sleeve can be realized in 8 hydraulic cylinders 5 of unilateral setting, to carry
High operating efficiency.
By setting hydraulic cylinder 5 jointly from upper and lower both direction, 2, overcoat can be promoted jointly from both direction to inner sleeve
The middle part movement of cylinder, to improve extrusion speed, improves the operating efficiency of bar connecting operation.
Embodiment 5：
Figure 10 is the structural representation of the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool of embodiment 5.In figure,
Marked with above-described embodiment accompanying drawing identical, still continue to use definition of the above-described embodiment to the mark.Emerging each mark table
Show that implication is as follows：6th, protective cover of hydraulic cylinder.
Containing above-mentioned combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool, including keeper 7 and set on sleeve
The lower keeper 4 of cylinder, keeper 7 is sleeved on the outside of 2, an overcoat on sleeve, and keeper 4 is sleeved on outside another under sleeve
The outside of 2 or the outside of inner sleeve are covered, keeper 7 is connected with pressing plate 3 on sleeve, piston of each pressing plate 3 with hydraulic cylinder 5
Bar 51 connects, the pressing plate 3 in the outside of keeper 4 and 5 relatively-stationary setting of hydraulic cylinder under sleeve.Particularly, positioned at figure
Showing the pressing plate 3 of lower section can be commonly mounted on a rigid support with hydraulic cylinder 5.Hydraulic cylinder is additionally provided with outside hydraulic cylinder 5
Protective cover 6.
When only setting keeper in a direction of inner sleeve, sleeve keeper can be set in one direction, in favor of
Bar connecting is realized in shorter length, while two hydraulic cylinders 5 reinforcing bar position caused by extruding possibility jointly can also be avoided
The problem of shifting.
Although preferred embodiment of the present utility model is described above in conjunction with accompanying drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under enlightenment of the present utility model
Under ambit, many forms can also be made, such as：
(1) the male-tapered portion put in circular arc chamfering replacement can be utilized.
(2) in embodiment 1 or above-mentioned variants 1, the thickness of overcoat can be selected as 2~3 times or more of inner sleeve thickness.This
Belong within the scope of protection of the utility model.
Claims (10)
1. combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube, it is characterised in that：Including inner sleeve and overcoat,
The inner sleeve has inner sleeve sleeve part, and the inner sleeve sleeve part is one run through along the length direction of the inner sleeve sleeve part
Individual complete tubular；
The overcoat has overcoat sleeve part, and the overcoat sleeve part is the cylinder run through along the length direction of the overcoat sleeve part
Shape, one end of the inner surface of the overcoat sleeve part are provided with inner taper, the inner taper along the inner sleeve sleeve part
The diameter of the outer end of length direction is more than the inner diameter of the length direction along the inner sleeve sleeve part of the inner taper,
The rigidity of the overcoat is more than the rigidity of the inner sleeve.
2. cold extrusion reinforcing steel bar connecting sleeve tube in combined type axial direction according to claim 1, it is characterised in that：The inner sleeve sleeve
The one end in portion sets male-tapered portion or circular arc chamfering, the other end in the inner sleeve portion to also set up outside flange portion, the male-tapered
The diameter of the outer end of the length direction along the inner sleeve sleeve part in portion be less than the male-tapered portion along the inner sleeve sleeve part
Length direction inner diameter.
3. cold extrusion reinforcing steel bar connecting sleeve tube in combined type axial direction according to claim 1, it is characterised in that：The inner sleeve sleeve
The both ends in portion are respectively provided with male-tapered portion or circular arc chamfering, the length direction along the inner sleeve sleeve part in the male-tapered portion it is outer
The diameter at end is less than the inner diameter of the length direction along the inner sleeve sleeve part in the male-tapered portion.
4. the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube according to Claims 2 or 3, it is characterised in that：The overcoat
Inner taper smallest end diameter be more than the inner sleeve male-tapered portion smallest end diameter.
5. cold extrusion reinforcing steel bar connecting sleeve tube in combined type axial direction according to claim 3, it is characterised in that：The inner sleeve is cylindrical
The middle part of side face is provided with annular shaft platform.
6. the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube according to Claims 2 or 3, it is characterised in that：The inner cone
The coning angle in shape portion and the male-tapered portion is 10 °~170 °, and the length of the male-tapered portion and inner taper is 3~50mm.
7. the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube according to Claims 2 or 3, it is characterised in that：The overcoat
One end of remote inner taper be provided with closing in chamfering, the coning angle of the closing in chamfering is 10 °~170 °, the closing in chamfering
Length be 3~50mm.
8. the combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube according to Claims 2 or 3, it is characterised in that：The inner sleeve
The outer surface of sleeve part is provided with axial fin, and the axial fin axially extends, the axial fin towards inner sleeve sleeve
The surface of the end face in portion is the extension in the male-tapered portion.
9. a kind of combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool containing any one of claim 3-8,
It is characterized in that：Including keeper under keeper on sleeve and sleeve, keeper on keeper and the sleeve on the sleeve
It is set in the both ends for two outer sleeves for being located at inner sleeve both ends, keeper under keeper and the sleeve on the sleeve
It is connected respectively with pressing plate, each pressing plate is connected with the piston rod of hydraulic cylinder, respectively positioned at combined type axial direction cold-extruded compressed steel
The relatively-stationary setting of hydraulic cylinder above and below muscle branch sleeve.
10. a kind of combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube installation tool containing any one of claim 1-8,
It is characterized in that：Including keeper under keeper on sleeve and sleeve, keeper is sleeved on an overcoat on the sleeve
The outside of cylinder, keeper is sleeved on the outside of another outer sleeve or the outside of the inner sleeve under the sleeve, described
Keeper is connected with pressing plate on sleeve, and each pressing plate is connected with the piston rod of hydraulic cylinder, is positioned under the sleeve
The pressing plate and the relatively-stationary setting of the hydraulic cylinder on the outside of part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720389685.2U CN206769207U (en) | 2017-04-13 | 2017-04-13 | Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool |
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| CN201720389685.2U CN206769207U (en) | 2017-04-13 | 2017-04-13 | Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906957A (en) * | 2017-04-13 | 2017-06-30 | 邓书香 | Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool |
| CN110202077A (en) * | 2019-07-16 | 2019-09-06 | 高旻 | Cold extrusion combined type undergauge bar connecting apparatus and connection method |
| CN110725480A (en) * | 2019-10-29 | 2020-01-24 | 中建七局安装工程有限公司 | Steel bar butt joint method and steel bar butt joint assembly |
| CN115198970A (en) * | 2022-06-16 | 2022-10-18 | 中铁工程设计咨询集团有限公司 | Axial extrusion joint device for reinforcing steel bars and connecting method |
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2017
- 2017-04-13 CN CN201720389685.2U patent/CN206769207U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906957A (en) * | 2017-04-13 | 2017-06-30 | 邓书香 | Combined type axial direction cold extrusion reinforcing steel bar connecting sleeve tube and installation tool |
| CN110202077A (en) * | 2019-07-16 | 2019-09-06 | 高旻 | Cold extrusion combined type undergauge bar connecting apparatus and connection method |
| CN110725480A (en) * | 2019-10-29 | 2020-01-24 | 中建七局安装工程有限公司 | Steel bar butt joint method and steel bar butt joint assembly |
| CN110725480B (en) * | 2019-10-29 | 2023-12-08 | 中建七局安装工程有限公司 | Reinforcing steel bar butt joint method and reinforcing steel bar butt joint assembly |
| CN115198970A (en) * | 2022-06-16 | 2022-10-18 | 中铁工程设计咨询集团有限公司 | Axial extrusion joint device for reinforcing steel bars and connecting method |
| CN115198970B (en) * | 2022-06-16 | 2023-09-19 | 中铁工程设计咨询集团有限公司 | Reinforcing steel bar axial extrusion joint device and connecting method |
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