CN219491752U - Device for stretching in auxiliary manner of prestressed tendons of cast-in-situ circular structure - Google Patents
Device for stretching in auxiliary manner of prestressed tendons of cast-in-situ circular structure Download PDFInfo
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- CN219491752U CN219491752U CN202320359388.9U CN202320359388U CN219491752U CN 219491752 U CN219491752 U CN 219491752U CN 202320359388 U CN202320359388 U CN 202320359388U CN 219491752 U CN219491752 U CN 219491752U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to the technical field of building construction, in particular to a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure, which aims to solve the problems that a stretching jack in the prior art can inevitably drop downwards under the action of self gravity, so that the jack cannot keep vertical to Zhang Lamian and steel strands, the stretching quality is affected and the stretching safety is poor. The device for assisting in stretching of the prestressed tendons of the cast-in-situ circular structure comprises a bracket, a vertical connecting rod, an inclined telescopic member, a horizontal connecting rod, a hoop main body and a vertical track; the support groove is used for supporting the jack, the end part of the oblique telescopic member is rotationally connected with the support groove, one end of the vertical connecting rod is rotationally connected with the support groove, the other end of the vertical connecting rod is rotationally connected with the outer wall of the oblique telescopic member, and the oblique telescopic member is configured to be telescopic along the axis direction of the oblique telescopic member; the end part of the first truss is connected with the vertical connecting rod, and the end part of the second truss is connected with the anchor ear main body; the hoop main body is sleeved on the vertical rail in a sliding way.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a device for assisting stretching of a prestressed reinforcement of a cast-in-situ circular structure.
Background
The design of the prestress structures in the cast-in-situ circular silo and the pool body structure is gradually increased, the tensioning of the prestress ribs provides tensioning working surfaces through trapezoidal tensioning anchor ribs designed on the wall plates, the tensioning anchor ribs are vertical, inclined and the like along with the main body structure, and the tensioning jack is perpendicular to the tensioning working surfaces of the anchor ribs to apply prestress to the prestress ribs during tensioning.
However, the jack is always in a suspended state during on-site stretching, and the stretching jack can unavoidably drop downwards under the action of self gravity, so that the jack cannot be vertical to Zhang Lamian and the steel strands, the problems of increased friction resistance, tension loss and the like are caused, the stretching quality and stretching safety are affected, and the stretching quality and stretching safety are not easily ensured when the inclined plane is inclined.
Disclosure of Invention
The utility model aims to provide a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure, which solves the technical problems that a stretching jack in the prior art can unavoidably drop downwards under the action of self gravity, so that the jack cannot be vertical to Zhang Lamian and steel strands, the stretching quality is affected, and the stretching safety is poor.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure comprises: the device comprises a bracket, a vertical connecting rod, an inclined telescopic member, a horizontal connecting rod, a hoop main body and a vertical track;
the support groove is used for supporting the jack, the end part of the oblique telescopic member is rotationally connected with the support groove, one end of the vertical connecting rod is rotationally connected with the support groove, the other end of the vertical connecting rod is rotationally connected with the outer wall of the oblique telescopic member, and the oblique telescopic member is configured to be telescopic along the axis direction of the oblique telescopic member so as to adjust the vertical angle of the support groove;
the horizontal connecting rod comprises a first truss and a second truss, the end part of the first truss is connected with the vertical connecting rod, the end part of the second truss is connected with the anchor ear main body, and the first truss and the second truss are mutually hinged to adjust the horizontal angle of the bracket;
the anchor ear main body is sleeved on the vertical track in a sliding way so as to adjust the height of the bracket.
Further, the obliquely telescopic member includes an outer casing and an inner sleeve;
the outer protective sleeve is sleeved on the inner sleeve, the end part of the inner sleeve is rotationally connected with the bracket, and the outer wall of the outer protective sleeve is rotationally connected with the end part of the vertical connecting rod.
Further, the oblique telescopic member further comprises a rotary screw rod;
the inner wall of the inner sleeve is provided with an internal thread section, the rotating screw rod is in threaded connection with the internal thread section, and the rotating screw rod is connected with the inner wall of the outer casing, so that the rotating screw rod drives the outer casing to move relative to the inner sleeve when rotating along the axis of the rotating screw rod.
Further, the oblique telescopic member further comprises a bearing;
the bearing is installed on the inner wall of the outer casing, and the rotating screw rod is connected with the inner wall of the outer casing through the bearing.
Further, one end of the rotating screw rod, which is far away from the inner sleeve, is provided with a rotating handle.
Further, the horizontal connecting rod further comprises a rotating shaft bolt;
the rotation shaft bolt penetrates through the first truss and the second truss so that the first truss and the second truss rotate around the rotation shaft bolt.
Further, the horizontal connecting rod further comprises a lock nut;
the lock nut is in threaded connection with the rotating shaft bolt, and the lock nut is used for limiting rotation of the first truss and the second truss.
Further, the device also comprises a hoop bolt;
the anchor ear bolt is connected with the anchor ear main body and is used for fixing the anchor ear main body on the vertical track.
Further, the bracket is in a circular arc shape, the end part of the bracket extends inwards to form a baffle plate, and the baffle plate is used for blocking the jack.
Further, the vertical connecting rod, the horizontal connecting rod and the vertical track are all arranged to be of a circular tube structure.
In summary, the technical effects achieved by the utility model are as follows:
according to the device for assisting in stretching the prestressed tendons of the cast-in-situ circular structure, the hoop main body slides on the vertical track to enable the whole device to move up and down to the stretching work elevation of the jack along the vertical track, the first truss and the second truss are hinged with each other, the horizontal angle of the supporting groove is adjusted by rotating the first truss and the second truss, the horizontal position of the jack is adjusted, the vertical angle of the supporting groove is adjusted by adjusting the stretching of the inclined telescopic member to drive the vertical connecting rod to move up and down, compared with the existing jack in a hanging state during stretching work, the prestress stretching quality and the stretching work safety of operators can be guaranteed, stretching work of stretching faces of various angles can be adapted, and the technical problems that the stretching jack in the prior art can unavoidably drop downwards under the action of gravity of the jack, the jack cannot keep vertical with Zhang Lamian and steel strands, the stretching quality is affected, and the stretching safety is poor are solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a device for assisting in tensioning a prestressed tendon of a cast-in-situ circular structure provided by the embodiment of the utility model;
fig. 2 is a schematic structural diagram of a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure according to an embodiment of the present utility model at a first view angle;
fig. 3 is a schematic structural diagram of a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure according to a second view angle;
fig. 4 is a schematic structural diagram of a device for assisting stretching of a prestressed tendon of a cast-in-situ circular structure according to a third view angle.
Icon: 100-brackets; 110-baffle; 200-vertical connecting rods; 300-oblique telescopic members; 310-outer casing; 320-an inner sleeve; 330-rotating the screw rod; 340-bearing; 350-turning the handle; 400-horizontal connecting rod; 410-a first truss; 420-a second truss; 430-spindle bolts; 440-lock nut; 500-hoop main body; 510-anchor ear bolts; 600-vertical track.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
The device for assisting stretching of the cast-in-situ circular structure prestressed tendons provided by the embodiment comprises: bracket 100, vertical link 200, diagonal telescoping member 300, horizontal link 400, hoop body 500, and vertical track 600; the bracket 100 is used for supporting a jack, the end part of the oblique telescopic member 300 is rotationally connected with the bracket 100, one end of the vertical connecting rod 200 is rotationally connected with the bracket 100, the other end of the vertical connecting rod 200 is rotationally connected with the outer wall of the oblique telescopic member 300, and the oblique telescopic member 300 is configured to be telescopic along the axis direction of the oblique telescopic member 300 so as to adjust the vertical angle of the bracket 100; the horizontal connecting rod 400 comprises a first truss 410 and a second truss 420, wherein the end part of the first truss 410 is connected with the vertical connecting rod 200, the end part of the second truss 420 is connected with the anchor ear main body 500, and the first truss 410 and the second truss 420 are mutually hinged to adjust the horizontal angle of the bracket 100; the hoop body 500 is slidably sleeved on the vertical rail 600 to adjust the height of the bracket 100.
According to the device for assisting tensioning of the cast-in-situ circular structure prestressed tendons, the hoop main body 500 slides on the vertical track 600 to enable the whole device to move up and down to the jack tensioning work elevation along the vertical track 600, the first truss 410 and the second truss 420 are hinged with each other, the horizontal angle of the bracket 100 is adjusted by rotating the first truss 410 and the second truss 420, the horizontal position of the jack is adjusted, the vertical angle of the jack is adjusted by adjusting the stretching of the inclined telescopic member 300 to drive the vertical connecting rod 200 to move up and down, the vertical angle of the bracket 100 is further adjusted, compared with the existing jack tensioning work, the vertical angle of the jack is directly in a suspended state, the prestress tensioning quality and tensioning work safety and operator safety can be ensured, and the device can adapt to tensioning work of tensioning faces with various angles, and solves the technical problems that the jack tensioning jack can unavoidably drop down under the action of self gravity, the jack cannot keep vertical with Zhang Lamian and steel strands, the tensioning quality is affected, and tensioning safety is poor.
With respect to the structure and shape of bracket 100, in particular:
as shown in fig. 1, the bracket 100 has an arc structure with an upward opening, and a baffle 110 is formed by extending inward at the end of the bracket 100, where the baffle 110 can block the jack on the bracket 100, so as to effectively avoid the jack on the bracket 100 from falling out.
Regarding the structure and shape of the diagonal telescoping member 300, specifically:
as shown in fig. 1, 2 and 3, the slant telescopic member 300 includes an outer casing 310 and an inner sleeve 320, and the inner diameter of the outer casing 310 is larger than the outer diameter of the inner sleeve 320, so that the outer casing 310 can be sleeved on the inner sleeve 320, that is, the outer casing 310 can move on the inner sleeve 320, and the slant telescopic member 300 is integrally telescopic; the end of the inner sleeve 320 is rotatably connected to the bracket 100 by a pin, so that the inner sleeve 320 can rotate around the pin, thereby realizing the rotation of the inner sleeve 320 relative to the bracket 100.
The outer surface of the outer sheath is fixed with a pin shaft, the bottom end of the vertical connecting rod 200 is rotationally connected with the outer casing 310 through the pin shaft, so that the outer casing 310 can rotate around the pin shaft, and the rotation of the outer casing 310 relative to the vertical connecting rod 200 is realized; the vertical connecting rod 200 is of a circular tube structure, and the top end of the vertical connecting rod 200 is connected with the bottom of the bracket 100 through a pin shaft, so that the vertical connecting rod 200 can rotate relative to the bracket 100.
The oblique telescopic member 300 further comprises a rotating screw rod 330, the rotating screw rod 330 is made of solid round steel, an external thread section is carved on the surface of the rotating screw rod 330, an internal thread section is arranged on the inner wall of the inner sleeve 320, the end part of the rotating screw rod 330 stretches into the inner sleeve 320 and is in threaded connection with the internal thread section, and when the rotating screw rod 330 rotates along the axis of the rotating screw rod 330, the rotating screw rod 330 is made to stretch and retract relative to the inner sleeve 320 through threads, so that the outer sleeve 310 can be driven to move relative to the inner sleeve 320.
In addition, the outer protective cylinder 310 is provided as a thin-walled circular tube, and is sleeved with the rotary screw rod 330 and the inner sleeve 320, so that the screw thread is effectively prevented from being corroded; the end part of the rotating screw rod 330 far away from the inner sleeve 320 is connected with a rotating handle 350, and an operator drives the rotating screw rod 330 to rotate through the rotating handle 350, so that the outer protective sleeve 310 can move on the surface of the inner sleeve 320, and the vertical angle of the bracket 100 is adjusted.
The oblique telescopic member 300 further comprises a bearing 340, the bearing 340 is fixedly installed on the inner wall of the outer casing 310, and the rotating screw rod 330 passes through the bearing 340, so that the rotating screw rod rotates more smoothly, and the rotating screw rod is not worn with the outer casing 310.
Regarding the structure and shape of the horizontal link 400, specifically:
as shown in fig. 2 and 4, the horizontal connecting rod 400 includes a first truss 410 and a second truss 420, the first truss 410 and the second truss 420 have the same structure, the first truss 410 and the second truss 420 each include a horizontal pipe that is disposed in parallel up and down, and an inclined pipe that connects the horizontal pipes up and down, the ends of the first truss 410 and the second truss 420 that are close to each other have through holes, and the rotation shaft bolt 430 sequentially passes through the two through holes, so that the first truss 410 and the second truss 420 can rotate around the rotation shaft bolt 430, thereby realizing the rotational connection of the first truss 410 and the second truss 420, and the horizontal angle of the bracket 100 can be adjusted through the rotation between the first truss 410 and the second truss 420.
In order to lock the rotation of the first truss 410 and the second truss 420, the rotation shaft bolt 430 is used in combination with the locking nut 440, when the angle of the first truss 410 and the second truss 420 needs to be fixed, the locking nut 440 is screwed to make the locking nut 440 closely contact the surface of the first truss 410 or the second truss 420, the locking force generated by the locking nut 440 acts on the first truss 410 and the second truss 420 to complete the locking, and conversely, the locking nut 440 is screwed in the opposite direction to make the first truss 410 and the second truss 420 freely rotate.
Regarding the structure and shape of the staple body 500, specifically:
the anchor ear main part 500 includes two anchor ear, and two anchor ear are embraced vertical track 600, and vertical track 600 vertical setting, and vertical track 600 installs in anchor rib front direction and main structure operation frame connection fixed, and two anchor ear pass through anchor ear bolt 510 to be connected, through forward screw anchor ear bolt 510, can make two anchor ear fix on vertical track 600, and reverse screw anchor ear bolt 510 makes two anchor ear unblocks, and anchor ear main part 500 can freely remove along vertical track 600, adjusts whole device's high position.
The device for assisting in stretching of the cast-in-situ circular structure prestressed tendons, provided by the embodiment, can enable the whole device to move up and down along the vertical track 600 to adjust the working elevation by loosening the anchor bolt 510, fasten the anchor bolt 510 to fix the working elevation, enable the first truss 410 and the second truss 420 to rotate relatively by loosening the rotating shaft bolt 430, adjust the horizontal angle of the device, fasten the rotating shaft bolt 430 to fix the horizontal position of the device, enable the outer jacket to stretch out and draw back relative to the inner sleeve 320 by rotating the handle 350 to rotate positively and negatively, adjust the vertical angle of the device, and compared with the existing jack in a suspended state during stretching operation, the device can ensure the prestress stretching quality, the stretching operation safety and the operator safety.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The utility model provides a cast-in-place circular structure prestressing tendons assists device of stretching a ship which characterized in that includes: the device comprises a bracket (100), a vertical connecting rod (200), an inclined telescopic member (300), a horizontal connecting rod (400), a hoop main body (500) and a vertical track (600);
the bracket (100) is used for supporting a jack, the end part of the oblique telescopic member (300) is rotationally connected with the bracket (100), one end of the vertical connecting rod (200) is rotationally connected with the bracket (100), the other end of the vertical connecting rod (200) is rotationally connected with the outer wall of the oblique telescopic member (300), and the oblique telescopic member (300) is configured to be capable of stretching along the axis direction of the oblique telescopic member so as to adjust the vertical angle of the bracket (100);
the horizontal connecting rod (400) comprises a first truss (410) and a second truss (420), wherein the end part of the first truss (410) is connected with the vertical connecting rod (200), the end part of the second truss (420) is connected with the anchor ear main body (500), and the first truss (410) and the second truss (420) are mutually hinged to adjust the horizontal angle of the bracket (100);
the hoop main body (500) is slidably sleeved on the vertical rail (600) so as to adjust the height of the bracket (100).
2. The device for assisting stretching of the cast-in-situ circular structure prestressed tendons according to claim 1, wherein the oblique telescopic member (300) comprises an outer casing (310) and an inner sleeve (320);
the outer protective sleeve (310) is sleeved on the inner sleeve (320), the end part of the inner sleeve (320) is rotationally connected with the bracket (100), and the outer wall of the outer protective sleeve (310) is rotationally connected with the end part of the vertical connecting rod (200).
3. The device for assisting stretching of the prestressed tendons of the cast-in-situ circular structure according to claim 2, wherein the oblique telescopic member (300) further comprises a rotary screw rod (330);
the inner wall of the inner sleeve (320) is provided with an internal thread section, the rotating screw rod (330) is in threaded connection with the internal thread section, and the rotating screw rod (330) is connected with the inner wall of the outer casing (310), so that the rotating screw rod (330) drives the outer casing (310) to move relative to the inner sleeve (320) when rotating along the axis of the rotating screw rod (330).
4. A device for assisting in tensioning a prestressed tendon of a cast-in-situ circular structure according to claim 3, characterized in that said oblique telescopic member (300) further comprises a bearing (340);
the bearing (340) is installed on the inner wall of the outer casing (310), and the rotating screw rod (330) is connected with the inner wall of the outer casing (310) through the bearing (340).
5. The device for assisting stretching of the cast-in-situ circular structure prestressed tendons according to claim 4, wherein a rotating handle (350) is arranged at one end of the rotating screw rod (330) far away from the inner sleeve (320).
6. The device for assisting stretching of the prestressed tendons of the cast-in-situ circular structure according to claim 1, wherein the horizontal connecting rod (400) further comprises a rotating shaft bolt (430);
the rotation shaft bolt (430) passes through the first truss (410) and the second truss (420) to rotate the first truss (410) and the second truss (420) around the rotation shaft bolt (430).
7. The device for assisting stretching of the prestressed tendons of the cast-in-situ circular structure according to claim 6, wherein the horizontal connecting rod (400) further comprises a lock nut (440);
the locking nut (440) is in threaded connection with the rotating shaft bolt (430), and the locking nut (440) is used for limiting rotation of the first truss (410) and the second truss (420).
8. The device for assisting stretching of the prestressed tendons of the cast-in-situ circular structure according to claim 1, further comprising a hoop bolt (510);
the anchor ear bolt (510) is connected with the anchor ear main body (500) and is used for fixing the anchor ear main body (500) on the vertical track (600).
9. The device for assisting stretching of the prestressed tendons of the cast-in-situ circular structure according to claim 1, wherein the bracket (100) is arranged in a circular arc shape, the end part of the bracket (100) extends inwards to form a baffle plate (110), and the baffle plate (110) is used for blocking a jack.
10. The device for assisting tensioning of the prestressed tendons of the cast-in-situ circular structure according to any one of claims 1 to 9, wherein the vertical connecting rod (200), the horizontal connecting rod (400) and the vertical rail (600) are all arranged in a circular tube structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320359388.9U CN219491752U (en) | 2023-03-01 | 2023-03-01 | Device for stretching in auxiliary manner of prestressed tendons of cast-in-situ circular structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320359388.9U CN219491752U (en) | 2023-03-01 | 2023-03-01 | Device for stretching in auxiliary manner of prestressed tendons of cast-in-situ circular structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219491752U true CN219491752U (en) | 2023-08-08 |
Family
ID=87508195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320359388.9U Active CN219491752U (en) | 2023-03-01 | 2023-03-01 | Device for stretching in auxiliary manner of prestressed tendons of cast-in-situ circular structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219491752U (en) |
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2023
- 2023-03-01 CN CN202320359388.9U patent/CN219491752U/en active Active
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