CN113605739A - Prestressed FRP rib tensioning and anchoring device - Google Patents
Prestressed FRP rib tensioning and anchoring device Download PDFInfo
- Publication number
- CN113605739A CN113605739A CN202111066739.9A CN202111066739A CN113605739A CN 113605739 A CN113605739 A CN 113605739A CN 202111066739 A CN202111066739 A CN 202111066739A CN 113605739 A CN113605739 A CN 113605739A
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- anchoring
- cylinder barrel
- nut
- piston cylinder
- piston
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a prestressed FRP (fiber reinforced plastic) rib tensioning and anchoring device, which belongs to the technical field of building reinforcement and comprises an outer cylinder barrel, an inner cylinder barrel, a piston barrel, an anchoring assembly and an anchoring ring, wherein the other end of the piston barrel penetrates out of the inner cylinder barrel and then can be connected with the outer cylinder barrel through a second nut; through outwards pulling the piston cylinder, the piston cylinder drives the anchoring ring to move, and the clamping flaps are tightly pressed on the FRP ribs under the action of the conical cavity, so that the anchoring component can stretch the FRP ribs under the continuous action of the anchoring ring, and the piston cylinder is fixed through the second nut to realize anchoring. The device can be used for quickly tensioning the FRP ribs in the building, and is convenient and reliable to use.
Description
Technical Field
The invention belongs to the technical field of building reinforcement, and particularly relates to a prestressed FRP (fiber reinforced plastic) bar tensioning and anchoring device.
Background
The external prestressing technology is more and more widely applied in the current reinforcing market, but has some problems. The traditional external prestress steel strand reinforcing technology is widely applied, but has the defects of poor durability, poor corrosion resistance and the like. The FRP rib material has low material performance and shear strength, is not suitable for bending, and is widely used as a building material. The tensioning devices applied to the FRP bars exist in the prior art, the tensioning process is complex, and quick tensioning and anchoring of batch FRP bars cannot be realized.
Disclosure of Invention
In view of this, the invention aims to provide a prestressed FRP bar tensioning and anchoring device, which can be used for rapidly tensioning FRP bars in buildings and is convenient and reliable to use.
In order to achieve the purpose, the invention provides the following technical scheme:
the prestressed FRP rib tensioning and anchoring device comprises an outer cylinder barrel, an inner cylinder barrel, a piston barrel, an anchoring assembly and an anchoring ring, wherein one end of the inner cylinder barrel is connected to a first nut, the first nut is arranged in the outer cylinder barrel in a sliding mode, and the other end of the inner cylinder barrel is connected with the outer cylinder barrel in a sliding and sealing mode and extends out of the outer cylinder barrel; the anchoring assembly comprises at least two conical clamping flaps, a conical cavity corresponding to the clamping flaps is formed on the inner side of the anchoring ring, the anchoring ring is connected with one end of the piston cylinder, the piston cylinder is in sliding fit with the first nut, and the other end of the piston cylinder penetrates through the inner cylinder barrel and then can be connected with the outer cylinder barrel through a second nut; through outwards pulling the piston cylinder, the piston cylinder drives the anchoring ring to move, and the clamping flaps are tightly pressed on the FRP ribs under the action of the conical cavity, so that the anchoring component can stretch the FRP ribs under the continuous action of the anchoring ring, and the piston cylinder is fixed through the second nut to realize anchoring.
Further, an end cover is arranged at the outer end of the first nut and used for sealing and limiting the end part of the outer cylinder barrel.
Further, an oil inlet and an oil outlet are formed in the outer cylinder barrel and are respectively arranged on two sides of the first nut, the oil inlet is filled with oil, and the inner cylinder barrel extends outwards.
Furthermore, a plurality of friction grains are arranged on the inner wall of the clamping flap.
Furthermore, an elastic supporting component is arranged between the clamping flap and the piston cylinder and used for providing axial pre-supporting force for the clamping flap.
Furthermore, the elastic support part comprises a first spring and a support rod, a blind hole is formed in the end portion of the clamping flap, one end of the support rod is arranged in the blind hole in a sliding mode, the support rod is connected with the bottom of the blind hole in advance through the first spring, and the other end of the support rod extends to the piston cylinder.
Further, the anchoring device also comprises a jacking component used for jacking the anchoring component.
Furthermore, the jacking component comprises a pressure head, a pressure nozzle, a second spring and a jacking block, the pressure head is connected with the outer cylinder barrel in a threaded mode, the pressure nozzle is fixedly arranged on the outer side of the pressure head, the pressure nozzle is connected to the jacking block through the second spring, and the jacking block is arranged in the pressure head in a sliding mode.
Further, the inner side of the pressure nozzle is provided with a protective rubber ring.
The invention has the beneficial effects that:
according to the prestressed FRP rib tensioning and anchoring device, the conical cavity corresponding to the clamping flaps is formed on the inner side of the anchoring ring, the piston cylinder is pulled outwards to drive the anchoring ring to move, the clamping flaps are pressed on the FRP ribs under the action of the conical cavity, the FRP ribs are tensioned by the anchoring component under the continuous action of the anchoring ring, the piston cylinder is fixed through the second nut to realize anchoring, the piston cylinder can be pulled outwards through a manual or hydraulic cylinder by adopting the device, the use is convenient and reliable, after tensioning is finished, the FRP ribs can be fixed in the piston cylinder through the third nut, the further stabilizing effect can be achieved, then the FRP ribs are fixed at the front end, and the device is detached along the axial direction, and the use is convenient.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic structural view of the anchor assembly of the present invention;
fig. 3 is an enlarged view of fig. 1 at a.
The drawings are numbered as follows: the hydraulic cylinder comprises an outer cylinder barrel 1, an inner cylinder barrel 2, a piston barrel 3, an anchoring component 4, a clamping flap 41, friction lines 42, a blind hole 43, an anchoring ring 5, a first nut 6, a second nut 7, an end cover 8, an oil inlet 9, an oil outlet 10, a first spring 11, a support rod 12, a pressure head 13, a pressure nozzle 14, a second spring 15, a jacking block 16, a protective rubber ring 17 and FRP ribs 18.
Detailed Description
As shown in fig. 1-2, the prestressed FRP rib tensioning and anchoring device of the present invention includes an outer cylinder 1, an inner cylinder 2, a piston cylinder 3, an anchoring assembly 4 and an anchoring ring 5, wherein the outer diameter of the outer cylinder 1 is larger than that of the inner cylinder 2, one end of the inner cylinder 2 is connected to a first nut 6, the first nut 6 is screwed up by screw threads to the outer side of the inner cylinder 2, the outer side of the first nut 6 is smooth, so that the first nut 6 is slidably disposed in the outer cylinder 1, and the other end of the inner cylinder 2 is slidably and hermetically connected with the outer cylinder 1 and extends out of the outer cylinder 1; the anchoring assembly 4 comprises at least two conical clamping flaps 41, each clamping flap 41 is annularly arranged, a gap exists between every two adjacent clamping flaps 41, an annular clamping cavity is formed on the inner side, a conical cavity corresponding to the clamping flap 41 is formed on the inner side of the anchoring ring 5, the anchoring ring 5 is connected with one end of the piston cylinder 3, the piston cylinder 3 is in sliding fit with the first nut 6, and the other end of the piston cylinder 3 penetrates through the inner cylinder barrel 2 and can be connected with the outer cylinder barrel 1 through the second nut 7; through outwards pulling the piston cylinder 3, the piston cylinder 3 drives the anchoring ring 5 to displace, and each clamping flap 41 is pressed on the FRP rib 18 under the action of the conical cavity, so that the anchoring component 4 stretches the FRP rib 18 under the continuous action of the anchoring ring 5, and the piston cylinder 3 is fixed through the second nut 7 to realize anchoring.
According to the prestressed FRP rib tensioning and anchoring device, a conical cavity corresponding to the clamping flaps 41 is formed on the inner side of the anchoring ring 5, the piston cylinder 3 is pulled outwards, the piston cylinder 3 drives the anchoring ring 5 to move, the clamping flaps 41 are pressed on the FRP ribs 18 under the action of the conical cavity, the anchoring component 4 is enabled to tension the FRP ribs 18 under the continuous action of the anchoring ring 5, the piston cylinder 3 is fixed through the second nut 7 to achieve anchoring, the piston cylinder 3 can be pulled outwards through a manual or hydraulic cylinder by adopting the device, the use is convenient and reliable, after the tensioning is finished, the FRP ribs 18 can be fixed in the piston cylinder 3 through the third nut, the further stabilizing effect can be achieved, then the FRP ribs 18 are fixed at the front end and are detached again along the axial direction, and the use is convenient.
In this embodiment, an end cover 8 is arranged at the outer end of the first nut 6, a cavity between the end cover 8 and the first nut 6 is communicated with an oil outlet 10, the end cover 8 is connected with the inner cylinder barrel 2 in a sliding and sealing manner, and the end cover 8 is used for sealing and limiting the end part of the outer cylinder barrel 1.
In this embodiment, the outer cylinder barrel 1 is provided with an oil inlet 9 and an oil outlet 10, the oil inlet 9 and the oil outlet 10 are respectively arranged at two sides of the first nut 6, the oil inlet 9 is used for feeding oil, and the inner cylinder barrel 2 extends outwards.
In this embodiment, the inner wall of the clamping flap 41 is provided with a plurality of friction stripes 42 for matching with the FRP ribs 18, so that it is more beneficial to clamping the FRP ribs 18 and driving the FRP ribs to move.
In this embodiment, an elastic supporting member is disposed between the clamping flap 41 and the piston cylinder 3, and the elastic supporting member is used for providing an axial pre-supporting force to the clamping flap 41, and after the use is finished, the clamping flap 41 is elastically supported by the elastic supporting member, so that the clamping flap 41 can expose the anchoring ring 5, and the insertion and assembly of the FRP rib 18 are facilitated.
As shown in fig. 3, the elastic supporting component includes a first spring 11 and a supporting rod 12, a blind hole 43 is opened at an end of the clamping flap 41, one end of the supporting rod 12 is slidably disposed in the blind hole 43, the supporting rod 12 is connected through the bottom of the blind hole 43 of the first spring 11, and the other end of the supporting rod 12 extends to the piston cylinder 3.
In this embodiment, a pressing member is further included for pressing the anchoring assembly 4. The jacking component comprises a jacking head 13, a pressing nozzle 14, a second spring 15 and a jacking block 16, wherein the jacking head 13 is connected with the outer cylinder barrel 1 in a threaded mode, the pressing nozzle 14 is fixedly arranged on the outer side of the jacking head 13, the pressing nozzle 14 is connected to the jacking block 16 through the second spring 15, the jacking block 16 is arranged in the jacking head 13 in a sliding mode, the jacking component is arranged to be used for jacking the anchoring component 4, the clamping effect of the anchoring ring 5 on the clamping flap 41 is released, and the FRP rib 18 can be clamped into the jacking block conveniently next time.
In this embodiment, the inboard of pressure mouth 14 is provided with protection rubber circle 17, can be used for protecting pressure mouth 14, under the effect of buckling of FRP muscle 18, avoids FRP muscle 18 to damage pressure head 13.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. Prestressing force FRP muscle stretch-draw anchor which characterized in that: the piston cylinder comprises an outer cylinder barrel, an inner cylinder barrel, a piston barrel, an anchoring assembly and an anchoring ring, wherein one end of the inner cylinder barrel is connected to a first nut, the first nut is arranged in the outer cylinder barrel in a sliding mode, and the other end of the inner cylinder barrel is connected with the outer cylinder barrel in a sliding and sealing mode and extends out of the outer cylinder barrel; the anchoring assembly comprises at least two conical clamping flaps, a conical cavity corresponding to the clamping flaps is formed on the inner side of the anchoring ring, the anchoring ring is connected with one end of the piston cylinder, the piston cylinder is in sliding fit with the first nut, and the other end of the piston cylinder penetrates through the inner cylinder barrel and then can be connected with the outer cylinder barrel through a second nut; through outwards pulling the piston cylinder, the piston cylinder drives the anchoring ring to move, and the clamping flaps are tightly pressed on the FRP ribs under the action of the conical cavity, so that the anchoring component can stretch the FRP ribs under the continuous action of the anchoring ring, and the piston cylinder is fixed through the second nut to realize anchoring.
2. The prestressed FRP rib tensioning and anchoring device of claim 1, which is characterized in that: the outer end of the first nut is provided with an end cover, and the end cover is used for sealing and limiting the end part of the outer cylinder barrel.
3. The prestressed FRP rib tensioning and anchoring device of claim 2, which is characterized in that: the oil inlet and the oil outlet are formed in the outer cylinder barrel and are respectively arranged on two sides of the first nut, the oil inlet is filled with oil, and the inner cylinder barrel extends outwards.
4. The prestressed FRP rib tensioning and anchoring device of claim 1, which is characterized in that: and a plurality of friction grains are arranged on the inner wall of the clamping flap.
5. The prestressed FRP rib tensioning and anchoring device of claim 1, which is characterized in that: an elastic supporting component is arranged between the clamping clack and the piston cylinder and used for providing axial pre-supporting force for the clamping clack.
6. The prestressed FRP rib tensioning and anchoring device of claim 5, which is characterized in that: the elastic support component comprises a first spring and a support rod, a blind hole is formed in the end portion of the clamping flap, one end of the support rod is arranged in the blind hole in a sliding mode, the support rod is connected with the bottom of the blind hole in advance through the first spring, and the other end of the support rod extends to the piston cylinder.
7. A prestressed FRP rib tensioning and anchoring device according to any one of claims 1 to 6, wherein: the anchoring component is used for anchoring the steel wire rope, and the anchoring component is used for anchoring the steel wire rope.
8. The prestressed FRP rib tensioning and anchoring device of claim 7, which is characterized in that: the jacking component comprises a pressure head, a pressure nozzle, a second spring and a jacking block, the pressure head is connected with the outer cylinder barrel in a threaded mode, the pressure nozzle is fixedly arranged on the outer side of the pressure head, the pressure nozzle is connected to the jacking block through the second spring, and the jacking block is arranged in the pressure head in a sliding mode.
9. The prestressed FRP rib tensioning and anchoring device of claim 8, which is characterized in that: and a protective rubber ring is arranged on the inner side of the pressure nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111066739.9A CN113605739A (en) | 2021-09-13 | 2021-09-13 | Prestressed FRP rib tensioning and anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111066739.9A CN113605739A (en) | 2021-09-13 | 2021-09-13 | Prestressed FRP rib tensioning and anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113605739A true CN113605739A (en) | 2021-11-05 |
Family
ID=78310380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111066739.9A Pending CN113605739A (en) | 2021-09-13 | 2021-09-13 | Prestressed FRP rib tensioning and anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113605739A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB893567A (en) * | 1959-08-27 | 1962-04-11 | P S C Equipment Ltd | Improvements in or relating to hydraulic jacks |
| CN2695428Y (en) * | 2004-05-17 | 2005-04-27 | 铁道科学研究院 | Front clamp type low expansion lifting jack |
| CN102182146A (en) * | 2011-03-29 | 2011-09-14 | 中国铁道科学研究院铁道建筑研究所 | Prestress rib tensioning equipment, system and method and concrete continuous box girder |
| CN103224204A (en) * | 2013-05-13 | 2013-07-31 | 蔡青林 | Lifting jack for tensioning equipment |
| CN104860226A (en) * | 2015-04-27 | 2015-08-26 | 同济大学 | Prestress tensioning jack equipment with adjustable limiting device |
| US20180106041A1 (en) * | 2016-10-18 | 2018-04-19 | Felix Sorkin | Lightweight jack |
| CN212774348U (en) * | 2020-08-25 | 2021-03-23 | 天津同鑫煤矿机械制造有限公司 | Mining anchor rope stretch-draw machines |
| CN213418521U (en) * | 2020-09-28 | 2021-06-11 | 常州真友矿山设备有限公司 | Anchor cable stretching machine |
-
2021
- 2021-09-13 CN CN202111066739.9A patent/CN113605739A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB893567A (en) * | 1959-08-27 | 1962-04-11 | P S C Equipment Ltd | Improvements in or relating to hydraulic jacks |
| CN2695428Y (en) * | 2004-05-17 | 2005-04-27 | 铁道科学研究院 | Front clamp type low expansion lifting jack |
| CN102182146A (en) * | 2011-03-29 | 2011-09-14 | 中国铁道科学研究院铁道建筑研究所 | Prestress rib tensioning equipment, system and method and concrete continuous box girder |
| CN103224204A (en) * | 2013-05-13 | 2013-07-31 | 蔡青林 | Lifting jack for tensioning equipment |
| CN104860226A (en) * | 2015-04-27 | 2015-08-26 | 同济大学 | Prestress tensioning jack equipment with adjustable limiting device |
| US20180106041A1 (en) * | 2016-10-18 | 2018-04-19 | Felix Sorkin | Lightweight jack |
| CN212774348U (en) * | 2020-08-25 | 2021-03-23 | 天津同鑫煤矿机械制造有限公司 | Mining anchor rope stretch-draw machines |
| CN213418521U (en) * | 2020-09-28 | 2021-06-11 | 常州真友矿山设备有限公司 | Anchor cable stretching machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |