CN202520750U - Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same - Google Patents
Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same Download PDFInfo
- Publication number
- CN202520750U CN202520750U CN2012200883580U CN201220088358U CN202520750U CN 202520750 U CN202520750 U CN 202520750U CN 2012200883580 U CN2012200883580 U CN 2012200883580U CN 201220088358 U CN201220088358 U CN 201220088358U CN 202520750 U CN202520750 U CN 202520750U
- Authority
- CN
- China
- Prior art keywords
- nut
- pitch
- conversion nut
- conversion
- thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a conversion nut and a coarse-pitch threaded rod, an anchor rod and an anchor rod steel bar comprising the same. The conversion nut comprises a tubular body, wherein the inner wall and the outer wall of the body are respectively provided with an internal thread and an external thread. The coarse-pitch threaded rod comprises the conversion nut and a threaded rod, wherein the internal thread of the conversion nut is matched with the surface thread of the threaded rod, and the pitch of the threaded rod is not smaller than 10mm; the anchor rod or the anchor rod steel bar comprises the conversion nut, an anchor rod body or an anchoring steel bar and a clamp nut, wherein the conversion nut is installed on the end head of the anchor rod body or the anchoring steel bar, and the clamp nut is installed on the conversion nut; the internal thread of the conversion nut is matched with the surface thread of the anchor rod body or the anchoring steel bar; and the external thread of the conversion nut is matched with the internal thread of the clamp nut. The advantage of the coarse-pitch threaded rod, namely lower processing cost can be fully exerted through the conversion nut, and the advantage of a small-pitch thread, namely more accurate fastening force value and fastening distance is can also be exerted through the conversion nut. The conversion nut can be applied to the fields of mechanical engineering, civil engineering and the like.
Description
Technical field
The utility model belongs to the nut tightening technology, especially relates to a kind of large screw pitch screw rod of changing nut and comprising it, anchor pole and anchor pole reinforcing bar, can be used in the fields such as mechanical engineering, civil construction project.
Background technique
In the existing technology, utilizing nut and screw-thread fit to come fastening object is one of means the most widely, also is current techique.The screw thread that common screw rod cooperates with nut is the screw thread of standard or metric system, and pitch and thread parameter are selected to help fastening often most and transmission power.
But the off-gauge special thread of large screw pitch in practical application, also occurs: as using high-strength finish rolling deformed bar in the civil engineering, its screw thread is that partial thread and thread also are special.Because of adopting rolling to process, pitch is definite value, so nut engaged is special with it, can realize connection and fastening in the cooperation of rebar full length scope.Also all can realize being connected or fastening with special nut just like the ripple threaded drillpipe of large screw pitch, cannulated threaded reinforcing bar etc.This design is mainly considered for reinforcing bar or drilling rod manufacture cost.High-strength finish rolling deformed bar cooperates the usefulness that can do the anchoring of prestressed reinforcement in rock soil anchor or the prestressed concrete with special nut.
But compare with metric thread, this special nut secure fit will differ from, and power transmission efficiency will hang down, the nut height is also big.Because pitch is big, through torque spanner nut is being difficult to the tangible rotation of generation as the fine pitch screw thread when reinforcing bar applies prestressing force, make that applying prestress value is difficult to control.Therefore many use hydraulic jack are come tension reinforcing steel bar.But hydraulic jack is heavy, uses inconvenience.For example high-lift operation is carried out in the vault supporting of excavation cavern in underground engineering, and when requiring that Φ 32 finish rolling deformed bar anchor poles are applied 40 tons of prestressing force, hydraulic jack is just very inconvenient.If can be directly just more convenient through the nut pretension with torque spanner, other place is also similar.
Summary of the invention
The utility model provides the large screw pitch screw rod that has the conversion nut of different thread and have this conversion nut inside and outside a kind of; Solved the firm problem of the nut of nonstandard pitch; The advantage of the low processing cost of large screw pitch screw rod can be given full play to, all comparatively accurate advantage of fine pitch screw threads for fastening power value and fastening distance can be brought into play again.
A kind of conversion nut comprises the body of tubulose, and the inner and outer wall of said body is respectively equipped with internal thread and outside thread.
It is different with externally threaded pitch to be preferably internal thread; The pitch that promptly can be internal thread is greater than externally threaded pitch; Also can be the pitch of externally threaded pitch greater than internal thread; To adapt to different needs, it is 1.01～10 times of outside thread pitch that the pitch of electing internal thread as is more arranged, and most preferably is 2～5 times.
Described conversion nut is the straight pipe of a joint, is preferably combined by two semicircle pipes, processes very convenient.
Preferably, the internal thread of described conversion nut is to be the continuous thread or the discontinuous screw thread of pitch definite value, can adapt to various different switching needs.
The utility model also provides a kind of large screw pitch screw rod with above-mentioned conversion nut, comprises conversion nut and screw rod, and the internal thread of said conversion nut matches with the thread surface of screw rod, and the pitch of said screw rod is not less than 10mm.
Preferably, the internal thread of the said conversion nut position of matching with the thread surface of said screw rod adopts adhesives to fix.
Described conversion nut is one or two, be installed on the termination of screw rod or two terminations on.
Described screw rod is the hollow or solid body of rod.
The utility model also provides a kind of anchor pole or anchor bar with above-mentioned conversion nut; Comprise conversion nut, anchor bar body or anchor bar, tightening nut; Described conversion nut is installed on anchor bar body or the anchor bar termination; Tightening nut is installed on the conversion nut, and the internal thread of described conversion nut cooperates with the thread surface of anchor bar body or anchor bar, outside thread and tightening nut screw-internal thread fit.
Preferably, the thread surface of said anchor bar body or anchor bar is not less than 10mm, and the internal thread pitch of said conversion nut is not more than 5mm.
The conversion nut of the utility model; Highly versatile has the large screw pitch screw rod of changing nut, through the conversion nut; The advantage of the low processing cost of large screw pitch screw rod can be given full play to, all comparatively accurate advantage of fine pitch screw threads for fastening power value and fastening distance can be brought into play again.And the conversion nut processing can confirm parameters such as its diameter, height according to actual needs, cost control also can be done lowlyer.Cooperate a kind of anchor pole or anchor bar of changing nut that have of composition with anchor bar body, firm nut, can be widely used in fields such as mechanical engineering, civil engineering.
Description of drawings
Fig. 1 is a kind of normal cross section schematic representation of changing nut.
Fig. 2 is a kind of normal cross section schematic representation with the large screw pitch solid screw of changing nut.
Fig. 3 is installed in the schematic representation on the pedestal for a kind of anchor pole or anchor bar with the conversion nut of the utility model.
Embodiment
As shown in Figure 1, a kind of conversion nut 1 comprises body, and inner body wall has the different screw thread of pitch with outer wall, and the pitch of its internal thread 100 is 12.7mm, and the pitch of outside thread 101 is metric system pitch, reaches 2mm.
As shown in Figure 2, a kind of large screw pitch screw rod of changing nut 1 that has, conversion nut 1 is installed on screw rod 2 terminations, and its internal thread 100 matches with the thread surface of screw rod 2.
The pitch of the internal thread 100 of conversion nut 1 is 12.7mm; The pitch of outside thread 101 is that the pitch of 3mm screw rod 2 thread surfaces is 12.7mm; Conversion nut 1 also can be to have internal thread 100 and two semicircle pipes of outside thread 101 to fasten combination in opposite directions, and its screw-thread fit position is adhesively fixed with high-strength adhesive.
A kind of anchor pole or anchor bar as shown in Figure 3 with the conversion nut; Form by having conversion nut 1, anchor bar body 10, tightening nut 3 etc.; Conversion nut 1 is installed on the termination of anchor bar body 10, and anchor bar body 10 adopts the screw rod of the solid body of rod of large screw pitch, and pitch is 12.7mm and is the continuous thread of pitch definite value; The inwall of conversion nut 1 cooperates with anchor bar body 10 thread surfaces, plays transfer function; Tightening nut 3 is installed on the conversion nut 1, and its inwall cooperates with the outside thread of conversion nut 1, plays the role of fastening; Establish packing ring or backing plate 4 (near the rock stratum face) in case of necessity.
The utility model can be installed in the bolthole 6 on ground stratum 5, and anchor bar body 10 has certain length to go deep into bolthole hole 6, fully satisfies the anchoring needs.Anchor pole and rock anchorage can adopt technology such as slip casting commonly used at present, the shell anchoring of rising.
When in place, its screw-thread fit position can add adhesive and airtight to conversion nut 1 in case of necessity in anchor bar body 10 terminations, improves the integrity effect.
Claims (10)
1. change nut for one kind, comprise the body of tubulose, it is characterized in that the inner and outer wall of said body is respectively equipped with internal thread (100) and outside thread (101).
2. conversion nut according to claim 1 is characterized in that, described internal thread (100) is different with the pitch of outside thread (101).
3. conversion nut according to claim 2 is characterized in that, the pitch of said internal thread (100) is 1.01～10 times of said externally threaded pitch.
4. conversion nut according to claim 1 is characterized in that, described body is pipe always.
5. conversion nut according to claim 4 is characterized in that, described body is made up of two semicircle pipes.
6. a cum rights profit requires the large screw pitch screw rod of 1～5 arbitrary said conversion nut; Comprise conversion nut (1) and screw rod (2); It is characterized in that the internal thread of said conversion nut (1) matches with the thread surface of screw rod (2), the pitch of said screw rod (2) is not less than 10mm.
7. large screw pitch screw rod according to claim 7 is characterized in that, the position that the internal thread of said conversion nut (1) matches with the thread surface of said screw rod (2) adopts adhesives to fix.
8. large screw pitch screw rod according to claim 7 is characterized in that, described conversion nut (1) is one or two, be installed on the termination of screw rod (2) or two terminations on.
9. a cum rights profit requires the anchor pole or the anchor bar of 1～5 arbitrary said conversion nut; It is characterized in that; Comprise conversion nut (1), anchor bar body or anchor bar (10), tightening nut (3), described conversion nut (1) is installed on anchor bar body or anchor bar (10) termination, and tightening nut (3) is installed on the conversion nut (1); The internal thread (100) of described conversion nut (1) cooperates with the thread surface of anchor bar body or anchor bar (10), outside thread (101) and tightening nut (3) screw-internal thread fit.
10. anchor pole according to claim 9 or anchor bar is characterized in that, the thread surface of said anchor bar body or anchor bar (10) is not less than 10mm, and the internal thread pitch of said conversion nut is not more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200883580U CN202520750U (en) | 2012-03-09 | 2012-03-09 | Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200883580U CN202520750U (en) | 2012-03-09 | 2012-03-09 | Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520750U true CN202520750U (en) | 2012-11-07 |
Family
ID=47103702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200883580U Expired - Lifetime CN202520750U (en) | 2012-03-09 | 2012-03-09 | Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675827A (en) * | 2015-02-12 | 2015-06-03 | 刘允勇 | High-prestress equal-strength full-thread anchor rod nut |
| CN105626658A (en) * | 2016-03-26 | 2016-06-01 | 华为技术有限公司 | Self-locking anti-loosening fastening piece, fastening device and fastening structure |
-
2012
- 2012-03-09 CN CN2012200883580U patent/CN202520750U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675827A (en) * | 2015-02-12 | 2015-06-03 | 刘允勇 | High-prestress equal-strength full-thread anchor rod nut |
| CN105626658A (en) * | 2016-03-26 | 2016-06-01 | 华为技术有限公司 | Self-locking anti-loosening fastening piece, fastening device and fastening structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201125491Y (en) | Prestress rib fixed end anchorage | |
| CN104453099B (en) | A kind of fine setting ground tackle and method that can compensate loss of prestress | |
| CN103835441A (en) | Rebar mechanical joint element used for precast reinforced concrete member and installing method thereof | |
| CN202520750U (en) | Conversion nut and coarse-pitch threaded rod, anchor rod and anchor rod steel bar comprising same | |
| CN202705897U (en) | High strength low retracting anchorage device | |
| CN203462654U (en) | Machinery anchoring structure for reinforcing steel bar | |
| CN203559526U (en) | Connecting sleeve for steel bars of assembly type building members with reinforced concrete members | |
| CN211421612U (en) | Butt joint connection structure of reinforcement cage | |
| CN106592872B (en) | Steel concrete supporting structure and installation method | |
| CN203429900U (en) | Steel bar planting mechanism | |
| CN103498690B (en) | A kind of two anchor cable combined locking devices and methods therefor | |
| CN203821765U (en) | Multilayer elastic hook anchor bolt | |
| CN204326373U (en) | A kind of fine setting ground tackle that can compensate loss of prestress | |
| CN201496086U (en) | Pipe sleeve type recoverable anchor rod | |
| CN201671339U (en) | Fixing device for wall bodies and beam column templates of buildings | |
| CN105114412B (en) | Using the composite material tube jointing and its application method of prestressed cable | |
| CN204876349U (en) | Steel bar anchoring device | |
| CN211573982U (en) | Detachable split nut | |
| CN206289876U (en) | A kind of steel concrete supporting structure | |
| CN205259178U (en) | Prestressing tendons NOT AND prestressing tendons anchor coupling sleeve | |
| CN201137142Y (en) | Prestressed anchor rod anchoring end straight thread jacket immobilizing structure | |
| CN202187482U (en) | Reinforcing steel bar connecting device | |
| CN218508829U (en) | Mechanical steel bar connecting and anchoring device and steel bar connecting and anchoring structure | |
| CN205189917U (en) | Novel nonmetal stock ground tackle | |
| CN205531024U (en) | Volume of contracting of pacing up and down finish rolling twisted steel prestressed anchorage solid system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |