CN212248232U - End assembly for recovering prestressed anchor cable - Google Patents
End assembly for recovering prestressed anchor cable Download PDFInfo
- Publication number
- CN212248232U CN212248232U CN202020792174.7U CN202020792174U CN212248232U CN 212248232 U CN212248232 U CN 212248232U CN 202020792174 U CN202020792174 U CN 202020792174U CN 212248232 U CN212248232 U CN 212248232U
- Authority
- CN
- China
- Prior art keywords
- steel strand
- channel
- along
- prestressed
- diameter
- 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.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an end subassembly for prestressed anchorage cable is retrieved, including steel strand wires and end portion, in the steel strand wires stretched into the end portion, it was protruding that steel strand wires are equipped with the location along the hoop, and end portion is equipped with two at least stops along the hoop, and it is protruding that stop is used for blockking the location, and the diameter of the passageway that forms between the stop is less than steel strand wires and fixes a position bellied thickness sum. The utility model has the advantages that the quick recovery of the prestressed anchor cable can be realized by arranging the positioning bulge and the blocking part, the recovery rate of the prestressed anchor cable is improved, and the operation flow is simple; the elastic piece is arranged between the steel strand and the end head part, so that the steel strand can be prevented from sliding out of the end head part in a non-recovery stage; by arranging the limiting groove, the limiting effect on the steel strand can be enhanced in the stress stage of the anchor cable, and the condition that the bearing capacity of the anchor cable is lost is prevented; through setting up the gradual change clamping piece, can realize the transmission of power at prestressed anchorage cable atress stage, realize the bearing function of end subassembly.
Description
Technical Field
The utility model relates to a building engineering technical field, especially an end subassembly for prestressed anchorage cable is retrieved.
Background
The recoverable prestressed anchor cable has been increasingly applied to urban construction due to the advantages of saving supporting cost, no formation of underground garbage, no long-term occupation of extra underground space and the like. However, the recoverable prestressed anchorage cable has the following disadvantages: 1. most of recoverable prestressed anchor cables have low recovery rate, and the unretracted anchor cables still occupy the underground space to form underground garbage; 2. most of recoverable prestressed anchor cables are complicated in recovery construction operation process and low in construction efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems of low recovery rate of the recoverable prestressed anchor cable and complicated recovery construction operation flow in the prior art, the end assembly for recovering the prestressed anchor cable is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
the end assembly for recovering the prestressed anchor cable comprises a steel strand and an end head, wherein the steel strand extends into the end head, the steel strand is provided with a positioning bulge along the circumferential direction, the end head is provided with at least two blocking parts along the circumferential direction, the blocking parts are used for blocking the positioning bulge, and the diameter of a channel formed between the blocking parts is smaller than the sum of the thicknesses of the steel strand and the positioning bulge.
The steel strand wires are arranged in a hollow area of the end head part, and the inner diameter of the hollow area without the blocking part is larger than or equal to the sum of the thicknesses of the steel strand wires and the positioning protrusions, so that the steel strand wires with the positioning protrusions can stretch into and stretch out of the end head part.
In the stress stage of the prestressed anchor cable, the blocking part can block the positioning bulge, so that the limiting of the steel strand is realized, and the steel strand is in a bearing state. When the prestressed anchor cable recovery stage is started, the positioning protrusions and the blocking parts are staggered with each other by rotating the steel strand, the blocking parts do not block the positioning protrusions any more and do not play a limiting role any more, so that the steel strand can be directly pulled out, and the prestressed anchor cable can be rapidly recovered.
The utility model discloses a set up location arch and stop part, can realize the quick recovery of prestressed anchorage cable, improve the rate of recovery of prestressed anchorage cable, and simple structure, it is simple to retrieve the operation flow.
As the utility model discloses an optimal scheme, the end portion still is equipped with spacing passageway along the hoop, the location arch is installed in the spacing passageway, spacing passageway is equipped with two at least spacing grooves and intercommunication along the hoop the spread groove of spacing groove, the spacing groove with the protruding looks adaptation in location, the spacing groove with form mortise and tenon structure between the location arch. The size of the connecting groove is larger than that of the positioning protrusion, so that the positioning protrusion can smoothly pass through the connecting groove.
Through setting up the spacing groove, form mortise and tenon structure between spacing groove and location arch, can strengthen the limiting displacement to the steel strand wires in prestressed anchorage cable atress stage, prevent that the condition that the anchor rope bearing capacity loses from appearing. When the anchor cable is recovered, the steel strand only needs to be pushed and pressed, so that the positioning protrusions and the limiting grooves are staggered, then the steel strand is rotated, so that the positioning protrusions and the blocking parts are staggered mutually, and the steel strand can be directly pulled.
As the utility model discloses an optimal scheme, steel strand wires are equipped with two at least gradual change clamping pieces along the hoop, be equipped with the gradual change passageway in the end portion, the gradual change passageway is equipped with first passageway section and second passageway section along the hoop. The diameter of the first channel section is gradually reduced along the pulling-out direction of the steel strand, and the minimum diameter of the first channel section is smaller than the sum of the maximum thicknesses of the steel strand and the gradual-change clamping piece, so that force transmission can be realized in the stress stage of the prestressed anchor cable, the load borne by the steel strand is transmitted to the end head part and further to the stratum, and the bearing function of the end head component is realized. The diameter of the second channel section is kept unchanged along the pulling-out direction of the steel strand, and the diameter of the second channel section is larger than the sum of the maximum thicknesses of the steel strand and the gradual-change clamping piece, so that the steel strand is pulled out through the second channel section in the prestressed anchor rope recovery stage.
As the utility model discloses a preferred scheme, still be equipped with regular channel in the end portion, regular channel is located the stop part with between the gradual change passageway, just regular channel with the gradual change passageway is linked together, regular channel's diameter is greater than the maximum diameter of gradual change passageway. Through setting up regular channel, be convenient for push away steel strand wires and rotatory steel strand wires, and then realize the quick recovery of steel strand wires.
As the utility model discloses an optimal scheme, the location protruding with the gradual change clamping piece all with steel strand wires welded connection guarantees sufficient joint strength.
As the utility model discloses an optimal scheme, the location protruding with the coincidence of the vertical central line of gradual change clamping piece, the rotatory steel strand wires of being convenient for will fix a position protruding and stop part and stagger gradual change clamping piece and first passageway section, and it is more convenient to retrieve the operation.
As the preferred scheme of the utility model, the bellied thickness of location is less than the maximum thickness of gradual change clamping piece.
As the utility model discloses an optimal scheme, the location protruding with the quantity of gradual change clamping piece is two, and along the hoop equipartition of steel strand wires.
As the preferred scheme of the utility model, be equipped with the elastic component in the spacing passageway. The positioning protrusions on the steel strands can be effectively prevented from sliding out of the limiting grooves or the blocking parts in the non-recovery stage.
As the preferred scheme of the utility model, the elastic component is the spring, the one end of spring with the end portion is connected, the other end with steel strand wires looks butt.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
(1) through setting up location arch and barrier portion, can realize the quick recovery of prestressed anchorage cable, improve prestressed anchorage cable's rate of recovery, and simple structure, the recovery operation flow is simple.
(2) Through set up elastic connection between steel strand wires and end portion, can prevent effectively that in non-recovery stage, the steel strand wires roll off the end portion.
(3) Through setting up the spacing groove, form mortise and tenon structure between spacing groove and location arch, can strengthen the limiting displacement to the steel strand wires in prestressed anchorage cable atress stage, prevent that the condition that the anchor rope bearing capacity loses from appearing.
(4) Through setting up the gradual change clamping piece, can realize the transmission of power at prestressed anchorage cable atress stage, transmit the load that the steel strand wires bore for the end portion, and then transmit for the stratum, realize the bearing function of end subassembly.
Drawings
Fig. 1 is a schematic longitudinal sectional view of a head assembly for recovering a prestressed anchor cable according to the present invention in a stressed stage.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a sectional view B-B of fig. 1.
Fig. 4 is a longitudinal sectional view of a head assembly for recovering a prestressed anchor cable according to the present invention in a recovering stage.
Fig. 5 is a cross-sectional view C-C of fig. 4.
Fig. 6 is a cross-sectional view taken along line D-D of fig. 4.
Icon: the steel strand grouting device comprises a 1-steel strand, a 2-steel strand protective sleeve, a 3-bearing body, a 4-gradual change channel, a 41-first channel section, a 42-second channel section, a 5-gradual change clamping piece, a 6-regular channel, a 7-blocking part, an 8-positioning bulge, a 9-limiting channel, a 91-limiting groove, a 92-connecting groove, a 10-spring, an 11-limiting rod, a 12-limiting baffle and a 13-grouting pipe.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 3, a head assembly for recovering a prestressed anchor rope comprises a steel strand 1 and a head part, wherein the steel strand 1 extends into the head part. The steel strand 1 is arranged in a hollow area of the end head, a blocking part 7 is arranged in part of the hollow area, the inner diameter of the hollow area without the blocking part 7 is larger than or equal to the sum of the thicknesses of the steel strand 1 and the positioning bulge 8, and therefore the steel strand 1 with the positioning bulge 8 can stretch into and stretch out of the end head.
The end head part is provided with a limiting channel 9 along the annular direction, a spring 10 is arranged in the limiting channel 9, one end of the spring 10 is abutted or connected with the end head part, and the other end of the spring is abutted with the steel strand 1. And the steel strand 1 is provided with two positioning bulges 8 along the circumferential direction, and the positioning bulges 8 are positioned in the limiting channel 9. Correspondingly, spacing passageway 9 is equipped with two spacing grooves 91 and communicates two along the hoop spacing groove 91's spread groove 92, spacing groove 91 with protruding 8's in location size phase-match, in the anchor rope atress stage spacing groove 91 with form the mortise and tenon structure between the protruding 8 in location, spread groove 92's size is greater than the protruding 8's in location size, retrieves the stage at the anchor rope promptly the protruding 8 in location can pass through smoothly spread groove 92. Meanwhile, two blocking parts 7 are arranged at the end part of the limiting channel 9 in the circumferential direction, the diameter of a channel formed between the blocking parts 7 is smaller than the sum of the thicknesses of the steel strand 1 and the two positioning protrusions 8, and therefore the blocking parts 7 can block the positioning protrusions 8 in the stress stage of the anchor cable. In the anchor cable recovery stage, after the positioning protrusions 8 and the blocking parts 7 are staggered with each other by rotating the steel strand 1, the sum of the thicknesses of the steel strand 1 and the positioning protrusions 8 is smaller than the diameter of the limiting channel 9, and therefore the steel strand can be pulled out of the limiting channel 9.
Further, still be equipped with regular channel 6 and gradual change passageway 4 in the tip portion, regular channel 6 with gradual change passageway 4 communicates each other, steel strand wires 1 is equipped with two gradual change clamping pieces 5 along the hoop, the diameter of gradual change clamping piece 5 reduces along the axial gradually, and is specific, gradual change clamping piece 5 is followed steel strand wires 1 draws out the direction diameter and reduces gradually.
The gradual change passageway 4 is equipped with four segmental arcs along the hoop, including two first passageway sections 41 and two second passageway sections 42, first passageway section 41 reduces along axial diameter gradually, and is specific, first passageway section 41 is along the diameter of the direction of pulling out of steel strand wires 1 reduces gradually, the minimum diameter of first passageway section 41 is less than the steel strand wires 1 with the maximum thickness sum of gradual change clamping piece 5, second passageway section 42 keeps unchangeable along axial diameter, and is specific, second passageway section 42 is along the direction of pulling out of steel strand wires 1 diameter keeps unchangeable, and the diameter of second passageway section 42 is greater than the steel strand wires 1 with the maximum thickness sum of gradual change clamping piece 5.
The regular channel 6 is located between the blocking portion 7 and the gradual change channel 4, and the diameter of the regular channel 6 is larger than the maximum diameter of the gradual change channel 4.
Protruding 8 in location with the coincidence of the longitudinal center line of gradual change clamping piece 5, the protruding 8 in location's thickness is less than the maximum thickness of gradual change clamping piece 5, protruding 8 in location with gradual change clamping piece 5 all with 1 welded connection of steel strand wires, and along 1's of steel strand wires hoop equipartition.
One end of the end head part can be provided with a bearing body 3, the bearing body 3 is connected with the steel strand protective sleeve 2, and the bearing body 3 mainly plays a role in converting tensile force in the prestressed anchor cable into pressure and transmitting the pressure to the peripheral cement paste and the surrounding stratum of the bearing body 3. A limiting rod 11 can be arranged at the other end of the end head assembly, a limiting baffle 12 is arranged at the end part of the limiting rod 11, and a grouting pipe 13 is arranged.
As shown in fig. 1 to fig. 3, in the stressed stage of the prestressed anchor cable, the limiting groove 91 and the positioning protrusion 8 form a mortise and tenon structure to limit the axial and circumferential positions of the steel strand 1, and the blocking portion 7 further limits the axial displacement of the positioning protrusion 8, that is, limits the axial position of the steel strand 1, so that the steel strand 1 can be clamped at the end portion to perform a bearing function. Meanwhile, the gradual change clamping piece 5 is tightly attached to the first channel section 41, so that the load borne by the steel strand 1 can be transmitted to the end head part and further to the stratum, and the force transmission is realized.
As shown in fig. 4-6, in the prestressed anchor rope recycling stage, the spring 10 is pushed inward first, so that the positioning protrusion 8 slides out of the limiting groove 91, and then the steel strand 1 is rotated, so that the positioning protrusion 8 and the blocking portion 7 are staggered, the positioning protrusion 8 enters the connecting groove 92, the tapered clip 5 and the first channel section 41 are staggered, and the tapered clip 5 enters the second channel section 42, so that the steel strand 1 can be pulled directly, and the prestressed anchor rope can be recycled quickly.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an end subassembly for prestressed anchorage cable is retrieved, its characterized in that, includes steel strand wires (1) and end, steel strand wires (1) stretch into in the end, steel strand wires (1) are equipped with location arch (8) along the hoop, the end is equipped with two at least stops (7) along the hoop, stop (7) are used for blockking location arch (8), the diameter of the passageway that forms between stop (7) is less than the sum of the thickness of steel strand wires (1) with location arch (8).
2. The head assembly for recovering the prestressed anchor rope as recited in claim 1, wherein said head portion further comprises a limiting channel (9) along a circumferential direction, said positioning protrusion (8) is installed in said limiting channel (9), said limiting channel (9) is provided with at least two limiting grooves (91) and a connecting groove (92) communicating with said limiting grooves (91) along a circumferential direction, said limiting grooves (91) are adapted to said positioning protrusion (8), and a mortise and tenon structure is formed between said limiting grooves (91) and said positioning protrusion (8).
3. The head assembly for recovering a prestressed anchor rope according to claim 2, wherein the steel strand (1) is provided with at least two tapered clamping pieces (5) along the circumferential direction, the head portion is provided with a tapered channel (4), the tapered channel (4) is provided with a first channel section (41) and a second channel section (42) along the circumferential direction, the first channel section (41) has a diameter gradually decreasing along the pulling direction of the steel strand (1), the minimum diameter of the first channel section (41) is smaller than the sum of the maximum thicknesses of the steel strand (1) and the tapered clamping pieces (5), the diameter of the second channel section (42) along the pulling direction of the steel strand (1) is kept constant, and the diameter of the second channel section (42) is larger than the sum of the maximum thicknesses of the steel strand (1) and the tapered clamping pieces (5).
4. The terminal assembly for recovering a prestressed anchor rope according to claim 3, wherein a regular channel (6) is further provided in said terminal portion, said regular channel (6) is located between said blocking portion (7) and said tapered channel (4), and said regular channel (6) is in communication with said tapered channel (4), and a diameter of said regular channel (6) is greater than a maximum diameter of said tapered channel (4).
5. The head assembly for recovering a prestressed anchor rope according to claim 3, wherein said positioning lug (8) and said tapered clip (5) are welded to said steel strand (1).
6. A head assembly for the recovery of prestressed anchorage cables, according to claim 3, characterized in that the longitudinal centre lines of said positioning protrusions (8) and of said progressive clip (5) coincide.
7. A head assembly for the recovery of prestressed anchorage cables, according to claim 3, characterized in that the thickness of said positioning protrusions (8) is less than the maximum thickness of said progressive clip (5).
8. The head assembly for recovering the prestressed anchor rope as claimed in claim 3, wherein the number of the positioning protrusions (8) and the number of the tapered clamping pieces (5) are two and are uniformly distributed along the circumferential direction of the steel strand (1).
9. A terminal assembly for the recovery of prestressed anchorage cables, according to any one of claims 2 to 8, characterized in that the limiting channel (9) is provided with an elastic element.
10. The terminal assembly for recovering a prestressed anchor rope according to claim 9, wherein said elastic member is a spring (10), and one end of said spring (10) is connected to said terminal portion, and the other end is abutted against said steel strand (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792174.7U CN212248232U (en) | 2020-05-13 | 2020-05-13 | End assembly for recovering prestressed anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792174.7U CN212248232U (en) | 2020-05-13 | 2020-05-13 | End assembly for recovering prestressed anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212248232U true CN212248232U (en) | 2020-12-29 |
Family
ID=74000159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020792174.7U Active CN212248232U (en) | 2020-05-13 | 2020-05-13 | End assembly for recovering prestressed anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212248232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775627A (en) * | 2022-03-25 | 2022-07-22 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
-
2020
- 2020-05-13 CN CN202020792174.7U patent/CN212248232U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775627A (en) * | 2022-03-25 | 2022-07-22 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
| CN114775627B (en) * | 2022-03-25 | 2024-02-02 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212248232U (en) | End assembly for recovering prestressed anchor cable | |
| CN101603353A (en) | A kind of composite anchorage that is used for anchoring multiple fibre reinforced plastic twisted wire muscle or drag-line | |
| CN202202483U (en) | Anti-loose self-anchoring connector | |
| CN202012075U (en) | Fast connection device of prestressed concrete pipe pile | |
| CN108824205A (en) | The reeving device of steel strand wires | |
| CN109853552B (en) | Assembled integral bearing plate and pull-press composite anchor rod adopting same | |
| CN111441347A (en) | End assembly for recovering prestressed anchor cable | |
| CN108915611B (en) | Continuous pipe rope connector and implementation method | |
| CN213449165U (en) | Automatic tool anchor | |
| CN109944241B (en) | Anchor cable hole bottom reverse traction device and anchor cable installation method | |
| CN212676826U (en) | High-strength power cable protective sleeve | |
| CN215519505U (en) | Continuous curved conical composite anchor for multi-beam carbon fiber parallel inhaul cable | |
| CN214530620U (en) | Connecting device for steel bar and end plate | |
| CN2447466Y (en) | Strand bundle tractor | |
| CN211646381U (en) | First generation extrusion anchor type recoverable anchor cable | |
| CN211285585U (en) | Reverse folding umbrella-shaped expanding head synchronously following with jet grouting anchor cable | |
| CN109869386A (en) | A kind of connection inserted link, jointing device and prestressing force prefabricated component | |
| CN208169271U (en) | A kind of jointing device and prestressing force prefabricated component | |
| CN220395011U (en) | Taper sleeve self-locking assembled steel bar connector | |
| CN208815422U (en) | A kind of cast-in-place floorings many places steel strand wires penetrating device simultaneously | |
| CN112411536B (en) | Detachable and assembled type recovery anchor cable | |
| CN211698305U (en) | Silicon core pipe suitable for overhead laying | |
| CN217999635U (en) | Slip casting anchor cable rod | |
| CN107178093B (en) | Underground pipe gallery steel cable tightening device | |
| CN215170065U (en) | Rapid grouting sleeve for advanced small conduit grouting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |