CN203939183U - A kind of threaded reinforcing bar joint - Google Patents
A kind of threaded reinforcing bar joint Download PDFInfo
- Publication number
- CN203939183U CN203939183U CN201420320578.0U CN201420320578U CN203939183U CN 203939183 U CN203939183 U CN 203939183U CN 201420320578 U CN201420320578 U CN 201420320578U CN 203939183 U CN203939183 U CN 203939183U
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- Prior art keywords
- reinforcing bar
- accommodating cavity
- taper type
- type accommodating
- screw rod
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Abstract
The utility model discloses a kind of threaded reinforcing bar joint, comprise two overcoats, the two pairs of clamping plate and the connecting screw rod for two overcoats are linked into an integrated entity, the inside, one end of overcoat is provided with a taper type accommodating cavity, the other end is provided with the thread bush that can be spirally connected with described connecting screw rod, in taper type accommodating cavity, be provided with a pair of upper lower plate, the opposite face of upper lower plate is provided with the reinforcing bar holddown groove that can clamp an indented bars, the outer peripheral face that train wheel bridge and lower plate are relative with taper type accommodating cavity is taper surface, and the inwall of described taper surface and taper type accommodating cavity is suitable.It has solved its screw thread processing time consuming of syndeton effort of prior art effectively, and production efficiency is low, is difficult to meet the problem of site operation requirement, and the utility model is easy and simple to handle, can meet site operation requirement, has very high practical value.
Description
Technical field
The utility model relates to building iron link technique field, especially relates to a kind of by the threaded reinforcing bar joint of two indented bars docking.
Background technology
In architecture production field; often can run into need to be by two interconnective problems of indented bars; conventional art is that the end of two indented barss is welded and fixed together, need to use welding equipment, and job site often need to be in work high above the ground mostly when reinforcing bar welding; be subject to job site spatial limitation; use welding equipment difficulty very large, there is huge potential safety hazard in while electric welding spark etc., and the interface of welding is firm not; get rusty easily, sealing-off, this class technology now substantially forbidding.The indented bars docking of prior art adopts the mode of being spirally connected to carry out conventionally, processes screw thread in the end of reinforcing bar waiting, then the two ends of the end of thread of two reinforcing bars waiting and same long nut (or swivel nut) are spirally connected.Open day is the disclosed a kind of bar splice of patent document that February 7, publication number were CN2866687Y in 2007, within open day, is July 17, publication number in 2013 the disclosed a kind of bar splice special connector of patent document that is CN203066359U and within open day, is the connected mode that the bar splice of February 15, publication number in 2006 the disclosed a kind of quick links of patent document that is CN2758349Y all adopts pre-threaded on reinforcing bar.This mode being threaded needs to process screw thread in the end of reinforcing bar in advance, and thread processing equipment volume is larger, be difficult to use at the scene, simultaneously because reinforcing bar is longer, therefore machining screw wastes time and energy, production efficiency is very low, is especially difficult to meet the actual requirement of job site, has affected construction precision.On the other hand, can make the diameter of reinforcing bar diminish and form stress concentration point in processing place in end reinforced machining screw, thereby having a strong impact on the intensity of reinforcing bar.In addition, be easy to get rusty in processing place through mach reinforcing bar, also affected intensity and the life-span of reinforcing bar.Open day is on January 8th, 2014, publication number is a kind of method that the patent document of CN103498536A discloses crush cones lock set compact form bar splice and connecting reinforcement thereof, the bar splice of described crush cones lock set compact form comprises double-screw bolt, cap nut, tapered sleeve and locking plate, described cap nut is provided with a pair of, a pair of cap nut is back-to-back to be arranged on double-screw bolt, in described each cap nut, be all set with tapered sleeve, and the end face of tapered sleeve exposes in the outside of overcoat nut end face, in described tapered sleeve, locking plate is installed; A pair of cap nut is set, adopts cap nut to screw and be connected with double-screw bolt, thereby make the tapered sleeve of cap nut inside compress locking plate, locking plate and reinforcing bar are fastenedly connected, realize the connection of reinforcing bar; The method of connecting reinforcement adopts pressurizing unit, and tapered sleeve is pushed, and makes to occur gap between cap nut and tapered sleeve, screws afterwards cap nut and double-screw bolt again, eliminates the gap between cap nut and tapered sleeve.Although this structure need to be on reinforcing bar pre-threaded, but be difficult to ensure by clamping its bonding strength of mode of the fixing reinforcing bar of locking plate, the reliability of connection is very poor, in addition, also need to be by special compression bonding apparatus when connection, be therefore difficult to construct at the scene of building site.
Utility model content
The purpose of this utility model is its screw thread processing time consuming effort of indented bars syndeton for solving prior art, production efficiency is low, be difficult to meet the problem of site operation requirement and provide a kind of attended operation easy, can meet the threaded reinforcing bar joint that site operation requires.
The utility model for the concrete technical scheme that reaches above-mentioned technical purpose and adopt is: a kind of threaded reinforcing bar joint, comprise two overcoats, the two pairs of clamping plate and the connecting screw rod for two overcoats are linked into an integrated entity, described overcoat is the column structure of hollow, the inside, one end of overcoat is provided with a taper type accommodating cavity, the miner diameter end of taper type accommodating cavity is communicated with an end face of overcoat, the bigger diameter end of taper type accommodating cavity is extended with the thread bush that can be spirally connected with described connecting screw rod to the other end of overcoat, in taper type accommodating cavity, be provided with a pair of clamping plate, this is made up of the train wheel bridge and the lower plate that are oppositely arranged clamping plate, the opposite face of upper lower plate is provided with the reinforcing bar holddown groove that can clamp an indented bars, the outer peripheral face that train wheel bridge and lower plate are relative with taper type accommodating cavity is taper surface, the inwall of described taper surface and taper type accommodating cavity is suitable, when train wheel bridge and lower plate retaining thread reinforcing bar, described taper surface is close to the inwall of taper type accommodating cavity, between train wheel bridge and lower plate, be provided with gap.The utility model by a pair of obvolvent indented bars after the outer peripheral face clamping plate that are taper type clamp indented bars, because the external surface of indented bars is provided with rib, these ribs make can not significantly move between indented bars and reinforcing bar holddown groove after snapping in reinforcing bar holddown groove, again overcoat is set on clamping plate outer peripheral face, clamping plate enter in the taper type accommodating cavity of overcoat one end, then two overcoats are screwed together to (two ends of connecting screw rod are connected with the thread bush in two overcoats respectively) by connecting screw rod.While drawing outside the indented bars at joint two ends is stressed, indented bars moves to the miner diameter end of overcoat taper type accommodating cavity together with clamping plate, the inwall of taper type accommodating cavity is by the taper surface of squeezing splints, thereby make more closely thread-rolling screw reinforcing bar of pressing plate, space between two clamping plates can ensure that indented bars is subject to the extruding of pressing plate all the time, like this, the end of two indented barss is fixed together tightly.Because threaded reinforcing bar joint of the present utility model does not carry out machining to reinforcing bar, not only solve its screw thread processing time consuming of indented bars syndeton effort of prior art, the problem that production efficiency is low, has also ensured the intensity of reinforcing bar.And its overcoat of steel reinforcement abutting joints structure of the present utility model, clamping plate and connecting screw rod all can be prefabricated in batches, on-the-spot only need employing is simply the docking operation that hand tool (spanner, pipe tongs etc.) can complete indented bars, therefore, meet the requirement of site operation completely, on the other hand, the utility model only need be changed clamping plate, the indented bars of different surfaces rib or different nominal diameters can be docked, and has solved the wideless problem of the steel bar connecting structure scope of application of prior art.Clamping plate are expressed as respectively train wheel bridge and lower plate by the utility model, and just for convenience of explanation and understand, the actual relative position that uses middle clamp plate is to be determined by the rib on indented bars surface.
As preferably, the axial length of upper lower plate is less than the axial length of taper type accommodating cavity, and the taper surface maximum gauge of upper lower plate is less than the large footpath of taper type accommodating cavity.Can guarantee like this to have docked rear upper lower plate entirety and be positioned at taper type accommodating cavity, thereby make clamping plate two ends uniform stressed, reach better compression effect.
As preferably, reinforcing bar holddown groove comprises major trough and is arranged on the secondary groove on major trough cell wall, and described major trough and indented bars main body are suitable, and the rib of described secondary groove and indented bars body surfaces is suitable.Reinforcing bar holddown groove can adopt various ways that external surface is fixed with the indented bars of protruding rib, for example adopt the reinforcing bar holddown groove with zigzag structure cell wall, here the structure that preferentially adopts major trough and add secondary groove on major trough cell wall, major trough and indented bars main body are suitable, the rib of secondary groove and indented bars body surfaces is suitable, has so higher quality of fit and does not damage reinforcing bar.
As preferably, described connecting screw rod is double threaded screw, and the outer peripheral face at connecting screw rod middle part is hexagon or circle; The outer peripheral face of described overcoat is hexagon or circle.When the outer peripheral face of connecting screw rod and overcoat adopts hexagon, can adopt spanner to its fastening operation that is spirally connected, when the outer peripheral face of connecting screw rod and overcoat adopts circle, can adopt pipe tongs to its fastening operation that is spirally connected.
As preferably, the thread rotary orientation at described double threaded screw two is contrary.When the thread rotary orientation at double threaded screw two, only need be rotationally connected screw rod just can be simultaneously to the be spirally connected operation and without rotating jacket or reinforcing bar, can simplify docking operation, raising work efficiency of two overcoats.
As preferably, the cone-apex angle of taper type accommodating cavity is 5-10 degree.The cone-apex angle of taper type accommodating cavity is excessive, and taper type accommodating cavity will diminish to the squeezing action of pressing plate, thereby affects the radially fixed effect of indented bars; The cone-apex angle of taper type accommodating cavity is too small, and taper type accommodating cavity will diminish to the axial resistance of pressing plate, thereby affects the axial restraint effect of indented bars; The cone-apex angle of 5-10 degree can take into account indented bars radially and axial restraint effect.
As preferably, connecting screw rod is provided with grout hole, described grout hole comprises the horizontal grout hole that is arranged on the straight grout hole on connecting screw rod axis and is arranged on connecting screw rod middle part, and straight grout hole and horizontal grout hole are through hole and straight grout hole and horizontal grout hole and are interconnected.Consider and in docking structure, have more space, the loosening space that provides of connection that not only deposit for docking structure in these spaces, and gap gets rusty easily, thereby affect application life, the utility model is provided with grout hole on connecting screw rod, when steel reinforcement abutting joints completes after casting cement, cement slurry can pass through grout hole, the passages such as grout groove flow into docking structure inside, and solidify all spaces of rear enclosed completely at cement, so not only reinforce docking structure, can avoid the loosening of docking structure, and after casting cement, there is antirust function, extend the experiment life-span of product.
The beneficial effects of the utility model are: it has effectively solved its screw thread processing time consuming of indented bars syndeton of prior art and has required great effort, production efficiency is low, be difficult to meet the problem of site operation requirement, threaded reinforcing bar joint of the present utility model is easy and simple to handle, can meet site operation requirement, has very high practical value.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model threaded reinforcing bar joint;
Fig. 2 is a kind of structural representation of the utility model threaded reinforcing bar joint overcoat;
Fig. 3 is a kind of structural representation of the upper and lower clamping plate of the utility model threaded reinforcing bar joint;
A kind of partial structurtes schematic diagram when Fig. 4 is the upper and lower clamping plate obvolvent of the utility model threaded reinforcing bar joint indented bars;
Fig. 5 is a kind of structural representation of the utility model threaded reinforcing bar joint connecting screw rod;
Fig. 6 is the another kind of structural representation of the utility model threaded reinforcing bar joint;
Fig. 7 is a kind of structural representation that the utility model threaded reinforcing bar joint uses state;
Fig. 8 is the another kind of structural representation that the utility model threaded reinforcing bar joint uses state;
Fig. 9 is the another kind of structural representation that the utility model threaded reinforcing bar joint uses state.
In figure: 1. overcoat, 2. connecting screw rod, 3. taper type accommodating cavity, 4. thread bush, 5. train wheel bridge, 6. lower plate, 7. gap, 8. reinforcing bar holddown groove, 9. taper surface, 10. major trough, 11. secondary grooves, 13. straight grout holes, 14. horizontal grout holes, 16. indented barss, 17. ribs.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings the detailed description of the invention of technical solutions of the utility model is further described.
Embodiment 1
In the embodiment 1 shown in Fig. 1, a kind of threaded reinforcing bar joint, comprises two overcoats 1, two pairs of clamping plate and the connecting screw rods 2 for two overcoats are linked into an integrated entity, and connecting screw rod is double threaded screw, and the outer peripheral face at connecting screw rod middle part is hexagon, described overcoat is the cylindrical-shaped structure of hollow, the inside, one end of overcoat is provided with a taper type accommodating cavity 3(and sees Fig. 2), the cone-apex angle that the cone-apex angle of taper type accommodating cavity and upper lower plate are upper conical is 5 degree, the miner diameter end of taper type accommodating cavity is communicated with an end face of overcoat, the bigger diameter end of taper type accommodating cavity is extended with the thread bush 4 that can be spirally connected with described connecting screw rod to the other end of overcoat, in taper type accommodating cavity, be provided with a pair of clamping plate, this is made up of the train wheel bridge 5 and the lower plate 6 that are oppositely arranged clamping plate, the opposite face of upper lower plate is provided with the reinforcing bar holddown groove 8 that can clamp an indented bars, reinforcing bar holddown groove comprises major trough 10 and is arranged on the secondary groove 11 on major trough cell wall, described major trough and indented bars main body are suitable, the suitable (see figure 3) of rib 17 of described secondary groove and indented bars body surfaces.The outer peripheral face that train wheel bridge and lower plate are relative with taper type accommodating cavity is taper surface 9, the inwall of described taper surface and taper type accommodating cavity is suitable, the axial length of upper lower plate is less than the axial length of taper type accommodating cavity, and the taper surface maximum gauge of upper lower plate is less than the large footpath of taper type accommodating cavity.When train wheel bridge and lower plate retaining thread reinforcing bar 16, described taper surface is close to the inwall of taper type accommodating cavity, is provided with gap 7(and sees Fig. 4, Fig. 7 between train wheel bridge and lower plate).
Embodiment 2
In the embodiment 3 shown in Fig. 6, connecting screw rod is provided with grout hole, described grout hole comprises the horizontal grout hole 14 that is arranged on the straight grout hole 13 on connecting screw rod axis and is arranged on connecting screw rod middle part, straight grout hole and horizontal grout hole are through hole and directly grout hole and horizontal grout hole be interconnected (seeing Fig. 5, Fig. 8), the cone-apex angle that the cone-apex angle of taper type accommodating cavity and upper lower plate are upper conical is 10 degree, and all the other are identical with embodiment 1.
Embodiment 3
The connecting screw rod of embodiment 3 is double threaded screw, and the thread rotary orientation at double threaded screw two is contrary, the rounded (see figure 9) of outer peripheral face at connecting screw rod middle part, and the outer peripheral face of overcoat is rounded, and all the other are identical with embodiment 1 or embodiment 2.
When threaded reinforcing bar joint of the present utility model uses, the end of first two overcoats being inserted in respectively to indented bars waiting, wherein thread bush one side is near the end of indented bars, the end of clamping indented bars with a pair of clamping plate by its reinforcing bar holddown groove again, the wider one end of its middle clamp plate is near the end of indented bars, mobile overcoat again, describe that with frustum in overcoat putting chamber entangles clamping plate, two overcoats and connecting screw rod are spirally connected, two indented barss are drawn outward, indented bars is shifted to the miner diameter end of overcoat taper type accommodating cavity together with clamping plate, and the inwall of taper type accommodating cavity is by the taper surface of squeezing splints, thereby make closely thread-rolling screw reinforcing bar of pressing plate, space between two clamping plates can ensure that indented bars is subject to the extruding of pressing plate all the time, like this, the end of two indented barss is fixed together tightly.Because threaded reinforcing bar joint of the present utility model does not carry out machining to reinforcing bar, not only solve its screw thread processing time consuming of indented bars syndeton effort of prior art, the problem that production efficiency is low, has also ensured the intensity of reinforcing bar.And its overcoat of steel reinforcement abutting joints structure of the present utility model, clamping plate and connecting screw rod all can be prefabricated in batches, on-the-spot only need employing is simply the docking operation that hand tool (spanner, pipe tongs etc.) can complete indented bars, therefore, met the requirement of site operation completely.On the other hand, the utility model only need be changed clamping plate, the indented bars of different surfaces rib or different nominal diameters can be docked, and has solved the wideless problem of the steel bar connecting structure scope of application of prior art.
In addition to the implementation; in claims of the present utility model and the disclosed scope of manual; technical characterictic of the present utility model or technical data can reselect and combine; thereby form new embodiment; it is attainable without carrying out creative work that these are all those skilled in the art, and the embodiment that therefore these the utility model are not described in detail also should be considered as specific embodiment of the utility model and within protection domain of the present utility model.
Claims (8)
1. a threaded reinforcing bar joint, it is characterized in that, comprise two overcoats (1), the two pairs of clamping plate and the connecting screw rod (2) for two overcoats are linked into an integrated entity, described overcoat is the column structure of hollow, the inside, one end of overcoat is provided with a taper type accommodating cavity (3), the miner diameter end of taper type accommodating cavity is communicated with an end face of overcoat, the bigger diameter end of taper type accommodating cavity is extended with the thread bush (4) that can be spirally connected with described connecting screw rod to the other end of overcoat, in taper type accommodating cavity, be provided with a pair of clamping plate, this is made up of the train wheel bridge (5) being oppositely arranged and a lower plate (6) clamping plate, the opposite face of upper lower plate is provided with the reinforcing bar holddown groove (8) that can clamp an indented bars, the outer peripheral face that train wheel bridge and lower plate are relative with taper type accommodating cavity is taper surface (9), the inwall of described taper surface and taper type accommodating cavity is suitable, when train wheel bridge and lower plate retaining thread reinforcing bar (16), described taper surface is close to the inwall of taper type accommodating cavity, between train wheel bridge and lower plate, be provided with gap (7).
2. threaded reinforcing bar joint according to claim 1, is characterized in that: the axial length of described upper lower plate is less than the axial length of taper type accommodating cavity, and the taper surface maximum gauge of upper lower plate is less than the large footpath of taper type accommodating cavity.
3. threaded reinforcing bar joint according to claim 1, it is characterized in that: described reinforcing bar holddown groove comprises major trough (10) and is arranged on the secondary groove (11) on major trough cell wall, described major trough and indented bars main body are suitable, and the rib (17) of described secondary groove and indented bars body surfaces is suitable.
4. threaded reinforcing bar joint according to claim 1, is characterized in that: described connecting screw rod is double threaded screw, and the outer peripheral face at connecting screw rod middle part is hexagon or circle.
5. threaded reinforcing bar joint according to claim 4, is characterized in that: the thread rotary orientation at described double threaded screw two is contrary.
6. threaded reinforcing bar joint according to claim 1, is characterized in that: the outer peripheral face of described overcoat is hexagon or circle.
7. according to the threaded reinforcing bar joint described in claim 1-6 any one, it is characterized in that: the cone-apex angle of taper type accommodating cavity is 5-10 degree.
8. according to the threaded reinforcing bar joint described in claim 1-6 any one, it is characterized in that: connecting screw rod is provided with grout hole, described grout hole comprises the straight grout hole (13) being arranged on connecting screw rod axis and is arranged on the horizontal grout hole (14) at connecting screw rod middle part, and straight grout hole and horizontal grout hole are through hole and directly grout hole and horizontal grout hole are interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320578.0U CN203939183U (en) | 2014-06-16 | 2014-06-16 | A kind of threaded reinforcing bar joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320578.0U CN203939183U (en) | 2014-06-16 | 2014-06-16 | A kind of threaded reinforcing bar joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939183U true CN203939183U (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420320578.0U Expired - Fee Related CN203939183U (en) | 2014-06-16 | 2014-06-16 | A kind of threaded reinforcing bar joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561105A (en) * | 2020-05-28 | 2020-08-21 | 中冶建工集团有限公司 | Vertical main reinforcement connection structure among assembled steel and concrete component |
-
2014
- 2014-06-16 CN CN201420320578.0U patent/CN203939183U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561105A (en) * | 2020-05-28 | 2020-08-21 | 中冶建工集团有限公司 | Vertical main reinforcement connection structure among assembled steel and concrete component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150616 |
|
| EXPY | Termination of patent right or utility model |