CN207420603U - A kind of pressure-relieving achor bar - Google Patents
A kind of pressure-relieving achor bar Download PDFInfo
- Publication number
- CN207420603U CN207420603U CN201720126934.9U CN201720126934U CN207420603U CN 207420603 U CN207420603 U CN 207420603U CN 201720126934 U CN201720126934 U CN 201720126934U CN 207420603 U CN207420603 U CN 207420603U
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- China
- Prior art keywords
- anchor pole
- connector sleeve
- adapter
- pressure
- screw thread
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Abstract
The utility model describes a kind of pressure-relieving achor bar, and connector sleeve, adapter, anchor pole a and anchor pole b are pressed including allowing；Pressure connector sleeve is allowed to be provided with the tube-like piece of screw thread and step for endoporus；Adapter is respectively provided with threaded tube-like piece for inner and outer surfaces, and with pressure connector sleeve internal thread is allowed to match, adapter internal thread matches adapter outer surface screw thread with anchor pole b；Anchor pole a is with allowing pressure connector sleeve internal thread to match, and anchor pole a one end is concordant with adapter one end end to be arranged on to allow and press in connector sleeve, and anchor pole b is arranged in adapter internal thread.The utility model is simple in structure at low cost, by the way that pressure connector sleeve and adapter is allowed to connect 2 anchor poles, on the premise of original anchor pole performance is not changed, the extension ability of anchor system is substantially increased, the utilization rate of anchor pole material is improved, there are energy-saving and environmental protection.
Description
Technical field
The utility model is related to ground supporting fields, particularly a kind of pressure-relieving achor bar.
Background technology
Tunnel excavation can destroy original stress equilibrium.Under the working condition of high-ground stress, the latter timing of tunnel excavation
In phase, palisades will deform or rock burst under residual compressive stress effect.This will have the anchor bar body for requiring supporting palisades well
Ductility, to adapt to the deformation of palisades.In recent years it is serious to damage since the requirement to the anchor pole strength of materials is higher and higher since
The ductility of anchor pole.The ductility of conventional anchor pole far can not meet requirement of the high-ground stress palisades to anchor pole ductility.
The content of the invention
The technical problem to be solved by the utility model is to provide a kind of pressure-relieving achor bars, are allowed by using one kind and press connector sleeve
Method, improve the whole development length of Bolt System.
In order to realize the purpose for solving above-mentioned technical problem, the utility model employs following technical solution：
A kind of pressure-relieving achor bar presses connector sleeve, adapter, anchor pole a and anchor pole b including allowing；
The tube-like piece that pressure connector sleeve is allowed to be provided with screw thread and step for endoporus, endoporus one end is arranged to screw thread, another
Step through hole is arranged at the port at end；Since screw thread terminate to allow and press connector sleeve endoporus step allowing and pressing connector sleeve one end
Place, step start from the screw tip in hole, terminate at another end face for allowing and pressing connector sleeve, and step bore dia is less than inner hole thread
Diameter；
The adapter is tube-like piece, and inner and outer surfaces are both provided with screw thread, and adapter outer surface screw thread presses connector sleeve with allowing
Internal thread matches, and adapter internal thread matches with anchor pole b；
With pressure connector sleeve internal thread is allowed to match, anchor pole a one end is concordant with adapter one end end to be arranged on the anchor pole a
Allow pressure connector sleeve in, the adapter other end and allow pressure connector sleeve step through hole between leave gap, anchor pole b is arranged on adapter
In internal thread, anchor pole b ends overlap setting with the end of anchor pole a, adapter, and make anchor pole b from allow pressure connector sleeve inner bore of step
Place is stretched out, and the diameter of anchor pole a is more than the diameter of anchor pole b.
Specifically, the anchor pole a and anchor pole b, is high intensity low elongation anchor pole conventional in building support engineering.
Specifically, described allow pressure connector sleeve to use normalizing low-alloy structural steel.
To ensure to allow the use of pressure connector sleeve, anchor pole a and adapter, injury of primary does not design the performance of anchor pole b, and makes in anchor
When bar support system bearing capacity is slightly larger than the yield force of anchor pole b, anchor pole b collaborations adapter can press connector sleeve thread cavity allowing
Interior slip makes following explanation to the attachment force between each component：Anchor pole a is with allowing the attachment force of pressure connector sleeve more than anchor pole b's
Stretching resistance；The attachment force of adapter internal thread and anchor pole b screw threads is more than the stretching resistance of anchor pole b；Adapter external screw thread is with allowing pressure to connect
The attachment force of female connector screw thread is slightly larger than the yield force of anchor pole b, and the stretching resistance less than anchor pole b；Adapter external screw thread is with allowing pressure to connect
The attachment force of female connector screw thread, with pressure connector sleeve step is allowed to the sum of end face resistance of adapter, more than the stretching resistance of anchor pole b.Such as
This, is not implemented only in the yield force that Bolt System bearing capacity is more than anchor pole b, and more than adapter external screw thread and pressure is allowed to connect
It during the attachment force of external threading, is pressed allowing in connector sleeve thread cavity, anchor pole b collaboration adapters slide from inside to outside, and terminate at
It allows at pressure connector sleeve step, compensates for the defects of conventional anchor pole ductility is insufficient；And it ensure that Bolt System in anchor pole b
Before fracture, allow and press the valid link of connector sleeve and adapter to anchor pole a, anchor pole b.
The combined member of adapter and anchor pole b press the slip of connector sleeve inner cavity allowing, and provide prolonging for pressure-relieving achor bar needs
It stretches.Pressure is allowed to connect the lasting cutting of external threading, constantly absorbs the kinetic energy of Bolt System carrying.
In use, adapter is screwed in one end of anchor pole b, and the two end face is concordant, and the two is simply welded, and prevents
Only occur mutually to rotate between the two during screw-in allows pressure connection external threading.Component after welding is integrally screwed in, pressure is allowed to connect
Certain length in female connector, and make not screw anchor pole b one end of adapter and allow pressure connector sleeve from allowing in pressure connector sleeve stepped hole stretch out
Outside.Anchor pole a screw-ins are allowed and press connector sleeve, overlap the concordant end of screw terminal and anchor pole b and adapter.
These technical solutions can also be combined with each other including improved technical solution and further improved technical solution
Or combine, so as to reach superior technique effect.
By using above-mentioned technical proposal, the utility model has following advantageous effect：It is simple in structure at low cost, pass through
Pressure connector sleeve and adapter is allowed to connect 2 anchor poles, on the premise of original anchor pole performance is not changed, substantially increases anchor
Gu the extension ability of system, improves the utilization rate of anchor pole material, has the characteristics that energy-saving and environmental protection.
Description of the drawings
Fig. 1 is the overall schematic of the pressure-relieving achor bar of this patent.
Fig. 2 is the schematic diagram for pressing connector sleeve that allows of the pressure-relieving achor bar of this patent.
Fig. 3 is the schematic diagram of the adapter of the pressure-relieving achor bar of this patent.
In figure, 1- anchor poles a, 2- adapter, 3-, which allows, presses connector sleeve, and 4- anchor poles b, 5- allow pressure to connect external threading, and 6- allows pressure to connect
Female connector step, 7- adapter internal threads, 8- adapter external screw threads.
Specific embodiment
This patent is further explained below in conjunction with the accompanying drawings.But the protection domain of this patent is not limited to specifically implement
Mode.
Embodiment 1
As shown in Figs. 1-3, a kind of pressure-relieving achor bar of this patent presses connector sleeve 3, adapter 2, anchor pole a1 and anchor pole including allowing
b4；
Pressure connector sleeve 3 is allowed to be provided with the tube-like piece of screw thread and step for endoporus, endoporus one end is arranged to screw thread, the other end
Step through hole is arranged at port；Since screw thread terminate to allow and press at 3 endoporus step of connector sleeve allowing and pressing 3 one end of connector sleeve,
Step starts from the screw tip in hole, terminates at another end face for allowing and pressing connector sleeve 3, it is straight that step bore dia is less than inner hole thread
Footpath；Pressure connector sleeve 3 is allowed to use normalizing low-alloy structural steel.
Adapter 2 is tube-like piece, and inner and outer surfaces are both provided with screw thread, and adapter external screw thread 8 is with allowing pressure to connect external threading 5
Match, adapter internal thread 7 matches with anchor pole b4；
With pressure connection external threading 5 is allowed to match, anchor pole a1 one end allows anchor pole a1 with 2 concordant be arranged in one end end of adapter
It presses in connector sleeve 3,2 other end of adapter and allows between pressure connector sleeve step 6 and leave gap, anchor pole b4 is arranged on spiral shell in adapter
In line 7, anchor pole b4 ends overlap setting with the end of anchor pole a1, adapter 2, and make anchor pole b4 from allowing in pressure connector sleeve step 6
It is stretched out at hole, the diameter of anchor pole a1 is more than the diameter of anchor pole b4.Anchor pole a1 and anchor pole b4 is height conventional in building support engineering
Intensity low elongation anchor pole.
Attachment force between screw thread meets claimed below：Anchor pole a1 is with making the attachment force of pressure connector sleeve 3 anti-more than anchor pole b4
Pulling force；The attachment force of adapter internal thread 7 and anchor pole b4 screw threads is more than the stretching resistance of anchor pole b4；Adapter external screw thread 8 and allow pressure
The attachment force for connecting external threading 5 is slightly larger than the yield force of anchor pole b4, and the stretching resistance less than anchor pole b4；Adapter external screw thread 8 with
Pressure is allowed to connect the attachment force of external threading 5, with allowing pressure connector sleeve step 6 to the sum of end face resistance of adapter 2, more than anchor pole b4's
Stretching resistance.
System bearing power exceeds anchor pole b4 yield forces, and more than adapter external screw thread 8 with pressure is allowed to connect the connection of external threading 5
During power, the combined member of adapter 2 and anchor pole b4 will press intracavitary in connector sleeve 3 to slide, and be gradually distance from the screw-in of anchor pole a1 allowing
End, and finally terminate in allow and press at connector sleeve step 6.Due to making pressure 3 intensity of connector sleeve relatively low, 2 intensity of adapter is higher, slides herein
During shifting, pressure connection external threading 5 is allowed progressively to be cut, and adapter external screw thread 8 then stands intact, and is subsequently slid with meeting
Adapter external screw thread 8 is with allowing pressure to connect the attachment force of external threading 5 in journey.
The combined member of adapter 2 and anchor pole b4 presses the slip of 3 inner cavity of connector sleeve allowing, and provides pressure-relieving achor bar needs
Extension.Pressure is allowed to connect the lasting cutting of external threading 5, constantly absorbs the kinetic energy of Bolt System carrying.
In use, adapter 2 is screwed in one end of anchor pole b4, and the two end face is concordant, and the two is simply welded,
It prevents from occurring mutually to rotate between the two during screw-in allows pressure connection external threading 5.Component after welding is integrally screwed in and is allowed
Certain length in connector sleeve 3 is pressed, and makes not screw anchor pole b4 one end of adapter 2 and allows pressure from allowing in pressure connector sleeve stepped hole stretch out
Outside connector sleeve 3.Anchor pole a1 screw-ins are allowed and press connector sleeve 3, overlap the concordant end of screw terminal and anchor pole b4 and adapter 2.
Claims (2)
1. a kind of pressure-relieving achor bar, it is characterized in that：Connector sleeve, adapter, anchor pole a and anchor pole b are pressed including allowing；
The tube-like piece that pressure connector sleeve is allowed to be provided with screw thread and step for endoporus, endoporus one end are arranged to screw thread, the other end
Step through hole is arranged at port；Since screw thread terminate to allow and press at connector sleeve endoporus step allowing and pressing connector sleeve one end, platform
Rank starts from the screw tip in hole, terminates at another end face for allowing and pressing connector sleeve, and step bore dia is less than inner hole thread diameter；
The adapter is tube-like piece, and inner and outer surfaces are both provided with screw thread, and adapter outer surface screw thread presses spiral shell in connector sleeve with allowing
Line matches, and adapter internal thread matches with anchor pole b；
With pressure connector sleeve internal thread is allowed to match, anchor pole a one end is concordant with adapter one end end to be arranged on and allows pressure the anchor pole a
In connector sleeve, the adapter other end and allow pressure connector sleeve step through hole between leave gap, anchor pole b is arranged on spiral shell in adapter
In line, anchor pole b ends overlap setting with the end of anchor pole a, adapter, and make anchor pole b from allow pressure connector sleeve inner bore of step at stretch
Go out, the diameter of anchor pole a is more than the diameter of anchor pole b.
2. pressure-relieving achor bar according to claim 1, it is characterized in that：It is described that pressure connector sleeve is allowed to use normalizing low-alloy structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126934.9U CN207420603U (en) | 2017-02-13 | 2017-02-13 | A kind of pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126934.9U CN207420603U (en) | 2017-02-13 | 2017-02-13 | A kind of pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420603U true CN207420603U (en) | 2018-05-29 |
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ID=62397532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720126934.9U Active CN207420603U (en) | 2017-02-13 | 2017-02-13 | A kind of pressure-relieving achor bar |
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| Country | Link |
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| CN (1) | CN207420603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798142A (en) * | 2019-03-25 | 2019-05-24 | 中铁第四勘察设计院集团有限公司 | It is a kind of with allowing the mountable long anchor pole of pressure function |
-
2017
- 2017-02-13 CN CN201720126934.9U patent/CN207420603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798142A (en) * | 2019-03-25 | 2019-05-24 | 中铁第四勘察设计院集团有限公司 | It is a kind of with allowing the mountable long anchor pole of pressure function |
| CN109798142B (en) * | 2019-03-25 | 2024-02-20 | 中铁第四勘察设计院集团有限公司 | Connectable long anchor rod with yielding function |
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