CN218373363U - Stay cable tensioning device - Google Patents
Stay cable tensioning device Download PDFInfo
- Publication number
- CN218373363U CN218373363U CN202222396327.8U CN202222396327U CN218373363U CN 218373363 U CN218373363 U CN 218373363U CN 202222396327 U CN202222396327 U CN 202222396327U CN 218373363 U CN218373363 U CN 218373363U
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- spike
- stay cable
- tensioning device
- stretch
- nut
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Abstract
The utility model discloses a stay cable tensioning device, which comprises a supporting foot bottom plate, a supporting foot upright post, a supporting foot top plate, a tensioning rod and a jack; install many spike stands on the spike bottom plate, the spike stand is height-adjustable festival formula structure, the spike roof is connected with the spike stand is detachable, the stretch-draw pole runs through the installation of spike roof, the jack is located spike roof top and is used for the jacking stretch-draw pole. The utility model provides a stay cable stretch-draw end anchor cup expose the big dead spike roof in top of volume and cause the unable problem of stretch-draw of stay cable, realized the optimization in stay cable stretch-draw end stretch-draw space, satisfy the stretch-draw requirement of stay cable to one side under narrow and small space bad border.
Description
Technical Field
The utility model belongs to the technical field of the bridge, concretely relates to suspension cable tensioning equipment.
Background
The stay cable is used as a main stress member of the cable-stayed bridge, and the stay cable needs to be tensioned through a jack during installation, so that the stay cable is tightened to bear the load transferred by the main beam. The existing stayed cable tensioning device is formed by sequentially welding and fixing a bottom plate, a supporting leg upright post and a top plate, a tension rod penetrates through the top plate after being connected with an anchor cup, and then a center-penetrating jack is adopted to jack the tension rod so as to complete the tensioning of the stayed cable.
The existing stay cable tensioning device has the following defects: (1) The space in a main tower of the cable-stayed bridge is limited, the tensioning spaces of all stay cables are different, when the distance between a top plate and a bottom plate is too large, the tensioning range is limited after a jack is installed in place in the limited space, the jack is subjected to repeated pressure relief and return stroke, the tensioning efficiency is seriously reduced, and the problem that tensioning cannot be performed possibly occurs in serious cases; (2) The exposed amount of the anchor cup at the tensioning end of each stay cable is greatly different in the tensioning process of the stay cable, and when the distance between the top plate and the bottom plate is too small, the stay cable cannot adapt to the tensioning of the stay cable with the large exposed amount of the anchor cup, so that the phenomenon that the top plate is tightly jacked by the anchor cup of the stay cable can be caused, and the problem that the stay cable cannot be tensioned is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a suspension cable tensioning device, solved suspension cable stretch-draw end anchor cup and exposed the big dieback spike roof of volume and caused the problem of the unable stretch-draw of suspension cable, realized the optimization in suspension cable stretch-draw end stretch-draw space, satisfy the stretch-draw requirement of cable to one side under narrow and small space bad border.
The utility model provides a following technical scheme:
a stay cable tensioning device comprises a supporting foot bottom plate, a supporting foot upright post, a supporting foot top plate, a tensioning rod and a jack; install many spike stands on the spike bottom plate, the spike stand is height-adjustable formula structure, spike roof is connected with the spike stand is detachable, the stretch-draw pole runs through the installation of spike roof, the jack is located spike roof top and is used for the jacking stretch-draw pole.
Furthermore, the stand column of the supporting foot is composed of a plurality of threaded screws.
Furthermore, one end of each screw rod is provided with a threaded hole with internal threads, the other end of each screw rod is provided with a threaded head with external threads, and the threaded holes and the threaded heads of the two adjacent screw rods are connected in a matched mode.
Furthermore, a thread groove matched with the thread head is arranged on the base plate of the supporting foot.
Furthermore, the supporting foot top plate is provided with a through hole corresponding to the position of the supporting foot stand column, and the supporting foot stand column is assembled on the supporting foot stand column through the through hole.
Further, install set nut and lock nut on the spike stand, the spike roof is located between set nut and the lock nut and is realized the rigidity through set nut and lock nut.
Furthermore, the tensioning rod nut is sleeved outside the tensioning rod and positioned above the supporting leg top plate, and the jack is arranged between the tensioning rod nut and the supporting leg top plate.
Furthermore, the cable support device further comprises an anchor cup nut, the end part of the stay cable is connected with an anchor cup, the brace bottom plate is provided with an anchor cup through hole for accommodating the anchor cup to pass through, and the anchor cup nut is sleeved outside the anchor cup and is positioned above the brace bottom plate.
Furthermore, the shape of the arm brace bottom plate and the shape of the arm brace top plate are both rectangular, and the four corners of the arm brace bottom plate and the arm brace top plate are both in a fillet structure.
Furthermore, the quantity of spike stand is four, spike stand evenly distributed is in the four corners department of spike bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses well spike stand is height-adjustable formula structure, and the spike roof is connected with the spike stand is detachable, makes the height-adjustable of spike roof, realizes the interval modulation of spike roof and spike bottom plate, has solved the problem that the large top of stay anchor cup exposure of stay cable stretch-draw end leads to the fact the unable stretch-draw of stay cable, has improved the stretch-draw efficiency of stay cable; meanwhile, the tensioning space of the tensioning end of the stay cable is optimized, and the tensioning requirement of the stay cable in a narrow space environment is met.
Drawings
Fig. 1 is a schematic perspective view of a stay cable tensioning device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a stay cable tensioning device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a screw rod in an embodiment of the present invention;
FIG. 4 is a schematic structural view of the adjustable high arm brace column in the embodiment of the present invention;
labeled in the figure as: 1. a temple base plate; 2. a brace top plate; 3. a temple bar; 301. a screw; 302. a screw head; 303. a threaded hole; 4. positioning a nut; 5. a lock nut; 6. stretching a pull rod; 7. tensioning a pull rod nut; 8. a jack; 9. an anchor cup; 10. a stay cable; 11. and (4) an anchor cup nut.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention but do not require the present invention to be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present embodiment provides a stay cable tensioning device, which includes a brace bottom plate 1, a brace upright column 3, a brace top plate 2, a tension rod 6, a tension rod nut 7, an anchor cup nut 11, and a jack 8.
The arm brace upright post 3 is of a height-adjustable structure. Specifically, the temple bar 3 is composed of a plurality of threaded rods 301. One end of the screw 301 is provided with a threaded hole 303 with internal threads, the other end of the screw is provided with a threaded head 302 with external threads, and the threaded holes and the threaded heads of the two adjacent screws are connected in a matching way.
The shape of the arm brace bottom plate 1 and the shape of the arm brace top plate 2 are both rectangular, and the four corners of the arm brace bottom plate 1 and the arm brace top plate 2 are both in a fillet structure. The base plate 1 of the supporting foot is provided with a thread groove matched with the thread head 302, and the column 3 of the supporting foot is installed and fixed by installing the thread head 302 in the thread groove. Four arm brace stand columns 3 are installed on the arm brace bottom plate 1, and the four arm brace stand columns 3 are uniformly distributed at four corners of the arm brace bottom plate 1.
The arm brace top plate 2 is detachably connected with the arm brace upright post 3. Specifically, the supporting foot top plate 2 is provided with a through hole corresponding to the supporting foot upright post 3, and the supporting foot upright post 3 is assembled on the supporting foot upright post 3 through the through hole. Install set nut 4 and lock nut 5 on the spike stand 3, the spike roof 2 is located between set nut 4 and lock nut 5 and realizes the rigidity through set nut 4 and lock nut 5.
The stretch-draw rod 6 penetrates through the arm brace top plate 2 to be installed, the stretch-draw rod nut 7 is sleeved outside the stretch-draw rod 6 and is located above the arm brace top plate 2, and the jack 8 is arranged between the stretch-draw rod nut 7 and the arm brace top plate 2. The jack 8 is used for jacking the tension rod nut 7, and then the jacking tension rod 6 is realized.
The tensioning end part of the stay cable 10 is connected with an anchor cup 9, the brace bottom plate 1 is provided with an anchor cup through hole for accommodating the anchor cup 9 to pass through, and an anchor cup nut 11 is sleeved outside the anchor cup 9 and positioned above the brace bottom plate 1 and used for realizing the initial fixation of the anchor cup 9.
The utility model discloses a use method does:
(1) Four screw rods 301 are arranged at four corners of the base plate 1 of the supporting foot;
(2) Selecting a proper number of screws 301 according to the requirement, and realizing the connection between the screws 301 through the threaded holes 303 and the threaded heads 302 at the two ends of the screws 301 to obtain the stand column 3 of the supporting foot with the required height;
(3) Mounting positioning nuts 4 on four supporting leg upright columns 3, mounting supporting leg top plates 2 on the supporting leg upright columns 3, and mounting locking nuts 5 on the supporting leg upright columns 3;
(4) The distance between the supporting foot top plate 2 and the supporting foot bottom plate 1 is adjusted by adjusting the positioning nut 4 and the locking nut 5;
(5) After the inclined stay cable is adjusted in place, a tensioning end part anchor cup 9 of the inclined stay cable 10 penetrates through an anchor cup perforation of the supporting foot bottom plate 1, the anchor cup 9 is connected with a tensioning rod 6, then a tensioning rod nut 7 and an anchor cup nut 11 are installed in place, the tensioning rod nut 7 is jacked through a jack, and tensioning of the inclined stay cable is completed.
The utility model discloses an advantage does:
(1) The problem that the stay cable cannot be tensioned due to the fact that the anchor cup is exposed to a large extent and the supporting leg top plate is jacked is solved, and the tensioning efficiency of the stay cable is improved;
(2) The tensioning space of the tensioning end of the stay cable is optimized, and the tensioning requirement of the stay cable in a narrow space environment is met;
(3) The device is simple in structure and convenient to install, and each part in the device is detachably connected, so that the parts can be conveniently overhauled and replaced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A stay cable tensioning device is characterized by comprising a supporting foot bottom plate, a supporting foot upright post, a supporting foot top plate, a tensioning rod and a jack; install many spike stands on the spike bottom plate, the spike stand is height-adjustable formula structure, spike roof is connected with the spike stand is detachable, the stretch-draw pole runs through the installation of spike roof, the jack is located spike roof top and is used for the jacking stretch-draw pole.
2. A stay cable tensioning device according to claim 1 wherein the brace strut is comprised of a plurality of threaded screws.
3. A stay cable tensioning device according to claim 2, wherein one end of each screw rod is provided with a threaded hole with internal threads, the other end of each screw rod is provided with a threaded head with external threads, and the threaded holes and the threaded heads of two adjacent screw rods are connected in a matching manner.
4. A stay cable tensioning device according to claim 3, wherein the brace base plate is provided with a threaded groove matching the threaded head.
5. A stay cable tensioning device according to claim 2 wherein the brace top plate is provided with a through hole corresponding in position to the brace upright, the brace upright being fitted through the through hole to the brace upright.
6. A stay cable tensioning device according to claim 5, wherein the stay foot upright post is provided with a positioning nut and a locking nut, and the stay foot top plate is arranged between the positioning nut and the locking nut and realizes position fixation through the positioning nut and the locking nut.
7. A stay cable tensioning device according to claim 1, further comprising a tension rod nut, wherein the tension rod nut is sleeved outside the tension rod and located above the leg support top plate, and the jack is disposed between the tension rod nut and the leg support top plate.
8. A stay cable tensioning device according to claim 1, further comprising an anchor cup nut, wherein the end of the stay cable is connected with an anchor cup, the stay base plate is provided with an anchor cup through hole for accommodating the anchor cup to pass through, and the anchor cup nut is sleeved outside the anchor cup and positioned above the stay base plate.
9. A stay cable tensioning device according to claim 1, wherein the shape of the arm brace bottom plate and the arm brace top plate is rectangular, and the four corners of the arm brace bottom plate and the arm brace top plate are rounded structures.
10. A stay cable tensioning device according to claim 9 wherein the number of the temple bars is four, the temple bars being evenly distributed at four corners of the temple bar base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222396327.8U CN218373363U (en) | 2022-09-09 | 2022-09-09 | Stay cable tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222396327.8U CN218373363U (en) | 2022-09-09 | 2022-09-09 | Stay cable tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218373363U true CN218373363U (en) | 2023-01-24 |
Family
ID=84973799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222396327.8U Active CN218373363U (en) | 2022-09-09 | 2022-09-09 | Stay cable tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218373363U (en) |
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2022
- 2022-09-09 CN CN202222396327.8U patent/CN218373363U/en active Active
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