CN205171373U - It paces up and down to bury deeply contracts stretch -draw of ground tackle secondary and revolve to twist device subassembly and secondary tensioning equipment thereof - Google Patents
It paces up and down to bury deeply contracts stretch -draw of ground tackle secondary and revolve to twist device subassembly and secondary tensioning equipment thereof Download PDFInfo
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- CN205171373U CN205171373U CN201520580002.2U CN201520580002U CN205171373U CN 205171373 U CN205171373 U CN 205171373U CN 201520580002 U CN201520580002 U CN 201520580002U CN 205171373 U CN205171373 U CN 205171373U
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Abstract
The utility model provides an it paces up and down to bury deeply contracts the stretch -draw of ground tackle secondary and revolve to twist the device subassembly, including pace up and down contract the nut, twist reverse sleeve, stop sleeve, screens tightening latch and twist reverse the tightening latch, pacing up and down and contracting the nut appearance for cylinder or the cross section cylinder for n limit shape, the inner circle is threaded, twists reverse the sleeve appearance for the cylinder, and the inboard shape of cylinder contracts the nut appearance and cooperatees with pacing up and down, and the other end is opened has m to be used for installing the through -hole that twists reverse the tightening latch, m >= 4, n >= 4, the stop sleeve is the cylinder, opens on it to have to be used for revolving the wrong inside telescopic operation window that reverses, under the operating condition, reverse set barrel casing and contract on the nut pacing up and down, the stop sleeve insert bury deeply the sleeve arrange the anchor backing plate in on, be located and bury the sleeve deeply and twist reverse between the sleeve, will pace up and down and contract the anchor slab and cover completely. It is low revolve to twist device subassembly simple structure, simple operation, convenient to use, processing cost, has this and revolves and twist burying deeply of the device subassembly ground tackle secondary tensioning equipment convenient operation, swift that contracts that paces up and down, practices thrift engineering time and mounting cost.
Description
Technical field
The utility model relates to a kind of low retraction ground tackle tensioner, particularly a kind of buried low retraction ground tackle two times tensioning screwing device assembly and buried low retraction ground tackle two times tensioning device.
Background technology
Low retraction ground tackle is in two times tensioning process, when jack tension steel strand, intermediate plate on steel strand, and anchor slab and the nut on anchor slab can together with follow steel strand and move, now gap can be produced between anchor slab and anchor plate, when putting in a process to reduce the amount of contraction of steel strand, need to rotate the nut on anchor slab, to reach the object of the amount of recovery reducing steel strand.Device for the buried low retraction ground tackle screw on nut in two times tensioning process lower than ground is also few, its result of use is also not ideal enough, wherein, patent publication No. is: CN102268857A, namely denomination of invention is wherein a kind of for " low retracting secondary stretch-draw anchorage supporting nut screwing device ", but this patent of invention complex structure, processing charges is high, complex installation process.
License notification number is: CN204475190U denomination of invention discloses a kind of low retraction ground tackle tensioning equipment for " a kind of low retraction ground tackle tensioning equipment ", but also have the following disadvantages: this utility model adopts pull bar to carry out two times tensioning, middle carry out by attaching nut the nut and the pull bar that connect low retraction ground tackle, this mode is constructed and can be produced following problem: 1. when the length of pull bar is long, deadweight can cause pull bar when larger again screw inconvenience; 2. this connected mode is connected the deadweight adding ground tackle with ground tackle, can have a strong impact on the centering that product is installed, and reduces anchoring efficiency; 3. after two times tensioning completes, need again to screw out attaching nut and pull bar, operation is loaded down with trivial details, needs to screw repeatedly screw thread, and use as instrument, too much screw thread can reduce the safety of use; Add mounting cost and set-up time in installation process for this reason.
Summary of the invention
The purpose of this utility model is to provide a kind of buried low retraction ground tackle two times tensioning screwing device assembly, low retraction ground tackle for different depth of rebate screws the nut on low retraction ground tackle in two times tensioning process, this screwing device modular construction is simple, simple operation, easy to use, processing cost is low, to solve the problems referred to above that prior art exists, provide a kind of buried low retraction ground tackle two times tensioning device with this screwing device simultaneously.
For solving the problem, the technical solution adopted in the utility model is: a kind of buried low retraction ground tackle two times tensioning screwing device assembly, comprises low retraction nut, torsion sleeve, stop sleeve and tightening latch;
The cylinder of described low retraction nut profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab, n >=4;
Described torsion sleeve profile is cylinder, and cylinder inner shape matches with low retraction nut profile, and the other end has m for installing the through hole reversing tightening latch, and torsion sleeve is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
Being cylindrical shape for bearing the stop sleeve of the power transmitted in jack tension process, it having symmetrically the operation window for screwing internal torsion sleeve;
Described tightening latch comprises screens tightening latch and reverses tightening latch; Screens tightening latch is threaded onto on low retraction nut, reverses tightening latch and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve is enclosed within low retraction nut; Stop sleeve inserts buried sleeve and is placed on anchor plate, is covered completely by low retraction anchor slab, and stop sleeve is installed between buried sleeve and torsion sleeve, end thereof contacts anchor plate, other end contact jack.
Its further technical scheme is: described low retraction nut profile is cylindrical, and torsion sleeve is the torsion sleeve I that one end has notch, and other end cylindrical is drilled with apart from end face 10 ~ 30mm position for installing the through hole reversing tightening latch.
Its further technical scheme or: described in screw low retraction nut be cross section is hexagonal cylinder-i.e. outer-hexagonal type nut; Its inside, lower end of described torsion sleeve is the torsion sleeve II of hexagonal configuration in matching with the low retraction nut of outer-hexagonal.
Its further technical scheme or: described in screw low retraction nut be the low retraction nut of parallel end faces type; Described torsion sleeve is inside, its lower end is the torsion sleeve III of the parallel end faces type matched with the low retraction nut of parallel end faces type.
Its further technical scheme be: described torsion sleeve is by the telescopic torsion sleeve IV of the nested adjustable length formed of the round steel cylinder of two different-diameters, each round steel cylinder has U-type groove, be bolted after regulating length, shape that match with low retraction nut profile, that be convenient to screw low retraction nut is processed in one end that torsion sleeve IV contacts with low retraction nut.
Its further technical scheme be: screens tightening latch is cylindrical thread end, closes with the corresponding threaded holes on low retraction nut, and the other end of screens tightening latch is circular, square or rhombus; Described torsion tightening latch is cylinder or cone shape.
Another relevant technical scheme is: a kind of buried low retraction ground tackle two times tensioning device with screwing device, comprise buried sleeve, be placed in the low retraction ground tackle for anchoring steel strand on buried sleeve, stretch-draw jack, it is characterized in that: it also comprises a two times tensioning screwing device assembly, described two times tensioning screwing device assembly is the above-mentioned buried low retraction ground tackle two times tensioning screwing device assembly of one of the present invention, and this screwing device assembly comprises low retraction nut, torsion sleeve, stop sleeve and tightening latch;
The cylinder of described low retraction nut profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab;
Described torsion sleeve 9 is cylinder, and cylindrical body inner shape matches with low retraction nut profile, and the other end has m for installing the through hole reversing tightening latch, and torsion sleeve is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
For bearing the stop sleeve 8 of the power transmitted in jack tension process for cylindrical shape, it has symmetrically the operation window for screwing internal torsion sleeve;
Described tightening latch comprises screens tightening latch and reverses tightening latch; Screens tightening latch is threaded onto on low retraction nut, reverses tightening latch and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve is enclosed within low retraction nut, and stop sleeve is installed between buried sleeve and torsion sleeve, and stop sleeve one end is inserted buried sleeve and is placed on anchor plate, and covered completely by low retraction anchor slab, the stop sleeve other end withstands jack; When jack carries out stretch-draw operation, low retraction ground tackle is followed steel strand and is moved together, and at this moment by applying around torsion sleeve circumference load torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, reaches the effect screwing low retraction nut.
Owing to taking above technical scheme, the buried low retraction ground tackle two times tensioning screwing device assembly of one and the buried low retraction ground tackle two times tensioning device of the utility model have following beneficial effect:
1, the buried low retraction ground tackle two times tensioning screwing device modular construction of the utility model is simple, easy to operate:
The buried low retraction ground tackle two times tensioning screwing device assembly of the utility model by improve low retraction nut shape and with the coordinating of torsion sleeve, that is: be n limit shape (comprising hexagon or the circular parallel surface removing two arc limits) cylinder by low retraction nut 4 profile for being made cylinder or cross section, inner ring has screw thread, torsion sleeve 9 profile is cylinder, the shape that cylinder one end inner shape matches with low retraction nut 4 profile, screens tightening latch 7 is threaded onto on low retraction nut 4, reverses tightening latch 1 and insert in the middle part of torsion sleeve; By applying the circumferential load around torsion sleeve to torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, can realize screwing low retraction nut; Easy to operate, quick.
2, the buried low retraction ground tackle two times tensioning screwing device modular construction of the utility model is simple, and processing and fabricating is convenient, improves production and efficiency of construction, greatly reduces cost of production.
3, applied range, the two times tensioning that can realize the low retraction ground tackle being applied to different depth hole screw:
The torsion sleeve of buried for the utility model low retraction ground tackle two times tensioning screwing device assembly is made by the telescopic torsion sleeve of the nested adjustable length formed of the round steel cylinder of two different-diameters, each round steel cylinder has U-type groove, be bolted after regulating length according to actual needs, can extend the length of torsion sleeve, realizing the utility model two times tensioning screwing device component application in the two times tensioning of the low retraction ground tackle of different depth hole screws.
4, the buried low retraction ground tackle two times tensioning device of the utility model is due to buried low retraction ground tackle two times tensioning screwing device assembly, after therefore two times tensioning completes, can screw low retraction nut immediately, easy to operate, quick; Secondly, this two times tensioning device adopts extension type torsion sleeve, can carry out two times tensioning for the embedded hole of different depth, easy for installation, quick, saves engineering time and mounting cost.
Below, in conjunction with the accompanying drawings and embodiments a kind of buried low retraction ground tackle two times tensioning screwing device assembly of the utility model and the technical characteristic of buried low retraction ground tackle two times tensioning device are further described.
Accompanying drawing explanation
Fig. 1 is the one of the utility model buried low retraction ground tackle two times tensioning screwing device assembly (hereinafter referred to as device assembly) and buried low retraction ground tackle two times tensioning apparatus structure and for implementing the using state schematic diagram that low retraction ground tackle two times tensioning screws;
Fig. 2-1 is the profile of the utility model device assembly is tubular low retraction nut structure schematic diagram;
Fig. 2-2 is top views of Fig. 2-1;
Fig. 3-1 is outer-hexagonal type low retraction nut front view;
Fig. 3-2 is top views of Fig. 3-1;
Fig. 4-1 is parallel end faces type low retraction nut front view;
Fig. 4-2 is top views of Fig. 4-1;
Fig. 5-1 is the torsion sleeve front view of the utility model embodiment one device assembly;
Fig. 5-2 is upward views of Fig. 5-1;
Fig. 6-1 is hexagonal torsion sleeve front view within the utility model embodiment two devices assembly;
Fig. 6-2 is upward views of Fig. 6-1;
Fig. 7-1 is the parallel surface torsion sleeve front view of the utility model embodiment three device assembly;
Fig. 7-2 is upward views of Fig. 7-1;
Fig. 8 is structure and the assembling schematic diagram of telescopic torsion sleeve;
Fig. 9-1 is the stop sleeve structural representation of the utility model device assembly;
Fig. 9-2 is top views of Fig. 9-1.
In figure:
1-reverses tightening latch, the buried sleeve of 2-, the low retraction anchor slab of 3-, the low retraction nut of 4-, 401-screwed hole;
41-low retraction nut I, 42-low retraction nut II, the low retraction nut III of 41-;
5-anchor backing plate, 6-concrete, 7-screens tightening latch, 8-stop sleeve, 801-operation window;
9-torsion sleeve, 91-torsion sleeve I, 92-torsion sleeve II, 93-torsion sleeve III, 94-torsion sleeve IV; 901-through hole, 902-notch, 903-U type groove; 941,942-round steel cylinder, 10-jack.
Detailed description of the invention
A kind of buried low retraction ground tackle two times tensioning screwing device assembly, as shown in Figure 1, this screwing device assembly comprises low retraction nut 4, torsion sleeve 9, stop sleeve 8, screens tightening latch 7 and reverses tightening latch 1;
The cylinder of described low retraction nut 4 profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab, n >=4;
Described torsion sleeve 9 profile is cylinder, and cylinder inner shape matches with low retraction nut 4 profile, and the other end has m for installing the through hole reversing tightening latch 1, and torsion sleeve 9 is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
For bearing the stop sleeve 8 of the power transmitted in jack tension process for cylindrical shape, it has symmetrically operation window 801(for screwing internal torsion sleeve see Fig. 9-1 ~ Fig. 9-2);
Screens tightening latch 7 is threaded onto on low retraction nut 4, reverses tightening latch 1 and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve 9 is enclosed within low retraction nut 4; Stop sleeve inserts buried sleeve and is placed on anchor plate, is installed between buried sleeve 2 and torsion sleeve 9, is covered completely by low retraction anchor slab, end thereof contacts anchor plate 5, other end contact jack 10.
When jack carries out stretch-draw operation, low retraction ground tackle is followed steel strand and is moved together, and at this moment by applying around torsion sleeve circumference load torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, reaches the effect screwing low retraction nut.
According to the difference of low retraction nut 4 outer shape and the difference of the inner shape of torsion sleeve 9 that coordinates with it, there is following several different embodiment.
Embodiment one
Low retraction nut profile is the buried low retraction ground tackle two times tensioning screwing device assembly of tubular one:
As shown in Fig. 2-1 ~ Fig. 2-2, low retraction nut I 41 profile of this buried low retraction ground tackle two times tensioning screwing device assembly is cylindrical, its cylinder has two or more for installing the screwed hole 401 of location tightening latch 7;
Described torsion sleeve is the torsion sleeve I 91 that one end has notch 902, and other end cylindrical is drilled with apart from end face 10 ~ 30mm position and reverses the through hole 901(of tightening latch 1 see Fig. 5-1 ~ Fig. 5-2 for installing);
Under duty, the periphery of low retraction nut I is inserted in one end torsion sleeve 9 being had notch, and notch aims at location tightening latch, and stop sleeve 8 is installed between buried sleeve 2 and torsion sleeve 9, end thereof contacts anchor plate 5, other end contact jack; When jack carries out stretch-draw operation, low retraction ground tackle is followed steel strand and is moved together, at this moment by applying around torsion sleeve circumference load torsion tightening latch, and then twisting resistance is passed to low retraction nut I by torsion sleeve, reaches the effect (see Fig. 1) screwing low retraction nut.
Embodiment two
Low retraction nut profile is the buried low retraction ground tackle two times tensioning screwing device assembly of the one of outer-hexagonal type:
As shown in Fig. 3-1 ~ Fig. 3-2, described in screw low retraction nut II 42 for cross section be hexagonal cylinder-i.e. outer-hexagonal type nut; Its inside, lower end of described torsion sleeve 9 is that torsion sleeve II 92(of hexagonal configuration in matching with the low retraction nut of outer-hexagonal is see Fig. 6-1 ~ Fig. 6-2).
Embodiment three
Low retraction nut profile is the buried low retraction ground tackle two times tensioning screwing device assembly of the one of parallel end faces type:
As shown in Fig. 4-1 ~ Fig. 4-2, described in screw low retraction nut III 43 for cross section be the circular low retraction nut of parallel end faces type removing two arc limits; Its inside, lower end of described torsion sleeve 9 is that torsion sleeve III 93(of parallel end faces type in matching with the low retraction nut of parallel end faces type is see Fig. 7-1 ~ Fig. 7-2).
For embodiment two, embodiment three, due to torsion sleeve II 92, the torsion sleeve III 93 of shape that torsion sleeve 9 is inside, its lower end for matching with low retraction nut, therefore, location tightening latch 7 need not be installed.
In working order, directly torsion sleeve II 92, torsion sleeve III 93 are enclosed within outside low retraction nut 4, reverse tightening latch and insert in the middle part of torsion sleeve; By applying the circumferential load around torsion sleeve to torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, can realize screwing low retraction nut; Easy to operate, quick.
Embodiment four
The buried low retraction ground tackle two times tensioning screwing device assembly of the one be made up of telescopic torsion sleeve:
As shown in Figure 8, described torsion sleeve is by the telescopic torsion sleeve IV 94 of round steel cylinder (941,942) the nested adjustable length formed of two different-diameters, each round steel cylinder has U-type groove 903, be bolted after regulating length, shape that match with low retraction nut profile, that be convenient to screw low retraction nut is processed in one end that torsion sleeve IV 94 contacts with low retraction nut; Described low retraction nut profile can be as among embodiment one, embodiment two or embodiment three any one.
Embodiment five
A kind of buried low retraction ground tackle two times tensioning device with screwing device:
As shown in Figure 1, the buried low retraction ground tackle two times tensioning device of this band automatic rotary screw device comprises buried sleeve 2, is placed in for the low retraction ground tackle of anchoring steel strand, stretch-draw jack 10 and a two times tensioning screwing device assembly on buried sleeve 2, and this screwing device assembly comprises low retraction nut 4, torsion sleeve 9, stop sleeve 8 and tightening latch;
The cylinder of described low retraction nut 4 profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab, n >=4;
Described torsion sleeve 9 is cylinder, and cylindrical body inner shape matches with low retraction nut 4 profile, and the other end has m for installing the through hole reversing tightening latch 1, and torsion sleeve 9 is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
For bearing the stop sleeve 8 of the power transmitted in jack tension process for cylindrical shape, it has symmetrically the operation window 801 for screwing internal torsion sleeve;
Described tightening latch comprises screens tightening latch 7 and reverses tightening latch 1; Screens tightening latch 7 is threaded onto on low retraction nut, reverses tightening latch 1 and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve 9 is enclosed within low retraction nut 4, and stop sleeve is installed between buried sleeve 2 and torsion sleeve 9, and stop sleeve one end is inserted buried sleeve and is placed on anchor plate, covered completely by low retraction anchor slab, stop sleeve 8 other end withstands jack 10;
When jack carries out stretch-draw operation, low retraction ground tackle is followed steel strand and is moved together, and at this moment by applying around torsion sleeve circumference load torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, reaches the effect screwing low retraction nut.
Can be the buried low retraction ground tackle two times tensioning screwing device assembly of any one among embodiment one, embodiment two, embodiment three or embodiment four with the concrete structure of the two times tensioning screwing device assembly of the present embodiment matched with devices, its concrete structure, see embodiment one, embodiment two, embodiment three or embodiment four, repeats no more herein.
Claims (7)
1. a buried low retraction ground tackle two times tensioning screwing device assembly, is characterized in that: this screwing device assembly comprises low retraction nut (4), torsion sleeve (9), stop sleeve (8) and tightening latch;
The cylinder of described low retraction nut (4) profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab, n >=4;
Described torsion sleeve (9) profile is cylinder, cylinder inner shape matches with low retraction nut (4) profile, the other end has m for installing the through hole reversing tightening latch (1), and torsion sleeve (9) is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
Being cylindrical shape for bearing the stop sleeve (8) of the power transmitted in jack tension process, it having symmetrically the operation window for screwing internal torsion sleeve;
Described tightening latch comprises screens tightening latch (7) and reverses tightening latch (1); Screens tightening latch (7) is threaded onto on low retraction nut (4), reverses tightening latch and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve (9) is enclosed within low retraction nut (4); Stop sleeve (8) inserts buried sleeve and is placed on anchor plate, is positioned between buried sleeve (2) and torsion sleeve (9), is covered completely by low retraction anchor slab, stop sleeve end thereof contacts anchor plate (5), other end contact jack (10).
2. buried low retraction ground tackle two times tensioning screwing device assembly according to claim 1, it is characterized in that: described low retraction nut profile is cylindrical, torsion sleeve is the torsion sleeve I (91) that one end has notch (902), and other end cylindrical is drilled with apart from end face 10 ~ 30mm position for installing the through hole (901) reversing tightening latch (1).
3. buried low retraction ground tackle two times tensioning screwing device assembly according to claim 1, is characterized in that: described in screw low retraction nut be cross section is hexagonal cylinder-i.e. outer-hexagonal type nut; Its inside, lower end of described torsion sleeve (9) is the torsion sleeve II (92) of hexagonal configuration in matching with the low retraction nut of outer-hexagonal.
4. buried low retraction ground tackle two times tensioning screwing device assembly according to claim 1, is characterized in that: described in screw low retraction nut be the low retraction nut of parallel end faces type; Described torsion sleeve (9) is inside, its lower end is the torsion sleeve III (93) of the parallel end faces type matched with the low retraction nut of parallel end faces type.
5. the buried low retraction ground tackle two times tensioning screwing device assembly according to claim 1,2,3 or 4, it is characterized in that: described torsion sleeve is by the telescopic torsion sleeve IV (94) of round steel cylinder (941,942) the nested adjustable length formed of two different-diameters, each round steel cylinder has U-type groove (903), be bolted after regulating length, shape that match with low retraction nut profile, that be convenient to screw low retraction nut is processed in one end that torsion sleeve IV (94) contacts with low retraction nut.
6. the buried low retraction ground tackle two times tensioning screwing device assembly according to claim 1,2,3 or 4, it is characterized in that: screens tightening latch (7) is cylindrical thread end, close with the corresponding threaded holes on low retraction nut, the other end of screens tightening latch (7) is circular, square or rhombus; Described torsion tightening latch (1) is cylinder or cone shape.
7. the buried low retraction ground tackle two times tensioning device with screwing device, comprise buried sleeve, be placed in the low retraction ground tackle for anchoring steel strand on buried sleeve, stretch-draw jack, it is characterized in that: it also comprises a two times tensioning screwing device assembly, described two times tensioning screwing device assembly is the buried low retraction ground tackle two times tensioning screwing device assembly of one according to claim 1, and this screwing device assembly comprises low retraction nut (4), torsion sleeve (9), stop sleeve (8) and tightening latch;
The cylinder of described low retraction nut (4) profile to be cylinder or cross section be n limit shape, inner ring has screw thread, is assemblied on low retraction anchor slab, n >=4;
Described torsion sleeve (9) is cylinder, cylindrical body inner shape matches with low retraction nut (4) profile, the other end has m for installing the through hole reversing tightening latch (1), and torsion sleeve (9) is installed on outside low retraction nut, and has gap between low retraction nut; M >=4;
Being cylindrical shape for bearing the stop sleeve (8) of the power transmitted in jack tension process, it having symmetrically the operation window for screwing internal torsion sleeve;
Described tightening latch comprises screens tightening latch and reverses tightening latch; Screens tightening latch is threaded onto on low retraction nut, reverses tightening latch and inserts in the middle part of torsion sleeve;
Under duty, torsion sleeve (9) is enclosed within low retraction nut (4), stop sleeve is installed between buried sleeve (2) and torsion sleeve (9), stop sleeve one end is inserted buried sleeve and is placed on anchor plate, covered completely by low retraction anchor slab, stop sleeve (8) other end withstands jack (10); When jack carries out stretch-draw operation, low retraction ground tackle is followed steel strand and is moved together, and at this moment by applying around torsion sleeve circumference load torsion tightening latch, and then twisting resistance is passed to low retraction nut by torsion sleeve, reaches the effect screwing low retraction nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520580002.2U CN205171373U (en) | 2015-08-05 | 2015-08-05 | It paces up and down to bury deeply contracts stretch -draw of ground tackle secondary and revolve to twist device subassembly and secondary tensioning equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520580002.2U CN205171373U (en) | 2015-08-05 | 2015-08-05 | It paces up and down to bury deeply contracts stretch -draw of ground tackle secondary and revolve to twist device subassembly and secondary tensioning equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205171373U true CN205171373U (en) | 2016-04-20 |
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| CN201520580002.2U Active CN205171373U (en) | 2015-08-05 | 2015-08-05 | It paces up and down to bury deeply contracts stretch -draw of ground tackle secondary and revolve to twist device subassembly and secondary tensioning equipment thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724242A (en) * | 2017-10-20 | 2018-02-23 | 中交第四公路工程局有限公司 | A kind of low retraction steel strand wires vertical prestressing two times tensioning method |
| CN109137733A (en) * | 2018-08-14 | 2019-01-04 | 中铁大桥局集团有限公司 | A kind of the tensioning support device and method for stretching of low retraction anchorage |
-
2015
- 2015-08-05 CN CN201520580002.2U patent/CN205171373U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724242A (en) * | 2017-10-20 | 2018-02-23 | 中交第四公路工程局有限公司 | A kind of low retraction steel strand wires vertical prestressing two times tensioning method |
| CN107724242B (en) * | 2017-10-20 | 2019-04-05 | 中交四公局第六工程有限公司 | A kind of low retraction steel strand wires vertical prestressing two times tensioning method |
| CN109137733A (en) * | 2018-08-14 | 2019-01-04 | 中铁大桥局集团有限公司 | A kind of the tensioning support device and method for stretching of low retraction anchorage |
| CN109137733B (en) * | 2018-08-14 | 2020-06-09 | 中铁大桥局集团有限公司 | Tensioning support device and tensioning method of low-retraction anchor |
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