CN215104774U - Cable-stayed bridge cable force unloading tool - Google Patents
Cable-stayed bridge cable force unloading tool Download PDFInfo
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- CN215104774U CN215104774U CN202121639501.6U CN202121639501U CN215104774U CN 215104774 U CN215104774 U CN 215104774U CN 202121639501 U CN202121639501 U CN 202121639501U CN 215104774 U CN215104774 U CN 215104774U
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- cable
- stayed bridge
- clamping
- bridge cable
- clamping plate
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Abstract
The utility model relates to a cable-stayed bridge cable force unloading tool, which comprises an unloading sleeve, wherein both ends of the unloading sleeve are provided with clamping arms, one end of each clamping arm is provided with a clamping end and is used for clamping or loosening a cable-stayed bridge cable, an adjusting mechanism is arranged between the unloading sleeve and the clamping arms and is used for adjusting the distance between the clamping ends of the two clamping arms, the clamping arms are arranged at both ends of the unloading sleeve, the clamping ends of the clamping arms are used for clamping one section of the cable-stayed bridge cable to be unloaded, the distance between the clamping ends of the two clamping arms is reduced through the adjusting mechanism so as to reduce the prestress of the cable-stayed bridge cable between the clamping sections, and then the cable-stayed bridge cable is cut off from the middle of the clamping sections of the cable-stayed bridge cable so that the distance between the clamping ends of the two clamping arms is increased, and the prestress between the cable-stayed bridge cables is gradually released, the unloading tool can ensure the safety of the cable-stayed bridge cable in the unloading construction process.
Description
Technical Field
The utility model relates to an engineering construction technical field, concretely relates to cable-stay bridge cable force uninstallation frock.
Background
At present, due to the influence of a construction process, a cable-stayed bridge cable is in a construction process, grouting and plugging are usually performed after anchor head construction is completed, a jack cannot be used for single tension cable force during cable-stayed cable dismantling construction in a later stage, only the tension cable force can be simply achieved by cutting a steel strand, potential great safety problems can be generated due to the generation of strong impact force, and therefore the safety problem of the cable-stayed bridge cable in the dismantling process is urgently needed to be solved by developing a cable-stayed bridge cable force unloading tool.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a cable-stay bridge cable force uninstallation frock can effectively implement to the cable-stay bridge cable of steel strand wires and let out the power, ensures the safety in the cable-stay bridge cable uninstallation work progress.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a cable-stay bridge cable power uninstallation frock, includes the uninstallation sleeve, the telescopic both ends of uninstallation all are provided with the centre gripping arm, the one end of centre gripping arm is provided with the exposed core and implements and carry out centre gripping or loosen the operation to the cable-stay bridge cable, be provided with adjustment mechanism between uninstallation sleeve and the exposed core, adjustment mechanism is used for adjusting the interval between the two exposed core holding ends.
The utility model discloses still have following characteristic:
the adjusting mechanism comprises a screw section arranged on the clamping arm, a screw thread section is arranged in the unloading sleeve pipe cavity, and the screw section is matched with the screw thread section.
The thread directions of the thread sections at the two ends of the unloading sleeve are opposite.
The whole clamping arm is L-shaped, and the clamping arm and the unloading sleeve form a U-shaped structure.
The clamping end of the clamping arm is provided with a fixed clamping plate and a movable clamping plate, and the clamping driving unit drives the movable clamping plate to be close to or loosened from the fixed clamping plate so as to clamp or loosen the cable of the cable-stayed bridge.
The movable clamping plate is provided with a driving tooth section, the clamping driving unit comprises a worm rotatably arranged at one end of the clamping arm, and the worm is matched with the driving tooth section.
The movable clamping plate and the fixed clamping plate form sliding guide fit.
Teeth are arranged between the opposite surfaces of the movable clamping plate and the fixed clamping plate.
And a screwing head is arranged at one end of the worm and the end extending out of the clamping arm.
The bending part of the clamping arm is in arc transition, and the bending part of the clamping arm is provided with an inclined strut.
Compared with the prior art, the beneficial effects of the utility model are embodied in: this uninstallation frock is when the in-service use, install the centre gripping arm at the telescopic both ends of uninstallation, carry out one section to the cable-stay bridge cable that needs the uninstallation with the exposed core of centre gripping arm and carry out the centre gripping, through adjustment mechanism, make the interval between the exposed core of two centre gripping arms diminish, with the prestressing force that reduces the cable-stay bridge cable between this exposed core, then cut in the middle of the exposed core of this cable-stay bridge cable, then through adjustment mechanism, make the interval grow between the exposed core of two exposed core, gradually release the prestressing force between the cable-stay bridge cable, accomplish the uninstallation to the cable-stay bridge cable, this uninstallation frock can effectively implement the cable-stay bridge cable of steel strand wires and let out the power, ensure the safety in the cable-stay cable uninstallation work progress.
Drawings
FIGS. 1 and 2 are front and right side views of a cable force unloader for a cable of a cable-stayed bridge;
FIG. 3 is a schematic perspective view of a cable force unloading tool for a cable of a cable-stayed bridge;
fig. 4 is a schematic view of a clamping arm clamping end mechanism of a cable force unloading tool for a cable of a cable-stayed bridge.
Detailed Description
With reference to fig. 1 to 4, the cable force unloading tool for cable-stayed bridge cables of the present invention is further described:
a cable force unloading tool for a cable-stayed bridge cable comprises an unloading sleeve 100, wherein clamping arms 200 are arranged at two ends of the unloading sleeve 100, one end of each clamping arm 200 is provided with a clamping end and is used for clamping or loosening the cable-stayed bridge cable 300, an adjusting mechanism is arranged between the unloading sleeve 100 and the clamping arms 200 and is used for adjusting the distance between the clamping ends of the two clamping arms 200;
this uninstallation frock is when the in-service use, install centre gripping arm 200 at the both ends of uninstallation sleeve 100, implement one section to the cable-stay bridge cable 300 that needs the uninstallation with the centre gripping of centre gripping arm 200 and carry out the centre gripping, through adjustment mechanism, make the interval between the centre gripping of two centre gripping arms 200 diminish, in order to reduce the prestressing force of cable-stay bridge cable 300 between this centre gripping section, then cut in the middle of the centre gripping section of this cable-stay bridge cable 300, then through adjustment mechanism, make the interval between the centre gripping of two centre gripping arms 200 grow, release the prestressing force between cable-stay bridge cable 300 gradually, accomplish the uninstallation to cable-stay bridge cable 300, this uninstallation frock can effectively implement to the cable-stay bridge cable 300 of steel strand wires and carry out the relief force, ensure the safety in the cable-stay bridge cable 300 uninstallation work progress.
As the preferred scheme of the utility model, adjustment mechanism is including setting up the screw rod section 210 on centre gripping arm 200, the intraductal screw thread section that is provided with of uninstallation sleeve 100 pipe, screw rod section 210 and screw thread section cooperation.
In practical applications, the thread directions of the thread sections at the two ends of the unloading sleeve 100 are opposite.
By screwing the thread direction of the thread sections at the two ends of the unloading sleeve 100 to be opposite, the clamping arms 200 at the two ends can be close to or far away from each other in the process of rotating the unloading sleeve 100, so that the force relief operation of the cable-stayed bridge 300 is realized.
More preferably, gripping arm 200 is generally "L" shaped, and gripping arm 200 and unloader sleeve 100 are generally "U" shaped.
The clamping arm 200 and the unloading sleeve 100 integrally form a U-shaped structure, so that the unloading sleeve 100 has enough rotation operation space, the tool can be conveniently installed on the cable-stayed bridge 300, the clamping section of the cable-stayed bridge 300 is kept loose, the clamping section is conveniently cut from a middle position, the force releasing of the cable-stayed bridge 300 is realized, and the unloading of the cable-stayed bridge 300 is completed.
Preferably, when clamping the cable-stayed bridge cable 300, the clamping end of the clamping arm 200 is provided with the fixed clamping plate 220 and the movable clamping plate 230, and the clamping driving unit drives the movable clamping plate 230 to approach or release the fixed clamping plate 220, so as to clamp or release the cable-stayed bridge cable 300.
The U-shaped clamping opening formed by the fixed clamping plate 220 and the movable clamping plate 230 is convenient for clamping the cable-stayed bridge cable 300 in the U-shaped clamping opening, so that the cable-stayed bridge cable 300 can be clamped or loosened conveniently.
The movable clamping plate 230 is provided with a driving tooth section 231, the clamping driving unit comprises a worm 232 rotatably arranged at one end of the clamping arm 200, and the worm 232 is matched with the driving tooth section 231.
When the movable clamp plate 230 is driven, the worm 232 is rotated to horizontally move the movable clamp plate 230, thereby clamping the cable 300.
Specifically, to achieve the sliding guide of the movable clamp plate 230, the movable clamp plate 230 and the fixed clamp plate 220 form a sliding guide fit.
The structure is similar to that of an adjustable wrench, and operation is convenient;
the movable clamping plate 230 and the fixed clamping plate 220 form a sliding guide, and when the cable-stayed bridge cable 300 is clamped between the movable clamping plate 230 and the fixed clamping plate 220, the cable-stayed bridge cable 300 can be clamped or loosened.
Specifically, teeth are disposed between the opposite surfaces of the movable splint 230 and the fixed splint 220.
For convenience of operation, the worm 232 and the end extending out of the holding arm 200 are provided with a screwing head.
In order to increase the strength of the clamping arm 200, the bending part of the clamping arm 200 is in arc transition, and the bending part of the clamping arm 200 is provided with an inclined strut 240.
The actual use steps of the tool are described as follows:
1. placing the cable-stayed bridge cable 300 between the movable clamping plate 230 and the fixed clamping plate 220, and screwing the cable-stayed bridge cable 300 by rotating the screwing head;
2. after the movable clamping plate 230 and the fixed clamping plate 220 are clamped tightly, the unloading sleeve 100 is rotated to shorten the length of the cable-stayed bridge 300, so that the prestress of the prestressed steel beam in the cable-stayed bridge 300 is slightly reduced;
3. after the internal prestress of the cable 300 of the cable-stayed bridge is slightly reduced, the middle part of the cable is cut off;
4. after the cable-stayed bridge cable 300 is cut off, the unloading sleeve 100 is rotated, so that the length of the cable-stayed bridge cable 300 is increased, and the prestress of the cable-stayed bridge cable 300 is gradually released;
5. and finally, after the cable force is completely unloaded, rotating the screwing head to release the cable-stayed bridge cable 300.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a cable-stay bridge cable force uninstallation frock which characterized in that: including uninstallation sleeve (100), the both ends of uninstallation sleeve (100) all are provided with centre gripping arm (200), the one end of centre gripping arm (200) is provided with the exposed core and implements to carry out centre gripping or loosen the operation to cable-stay bridge cable (300), be provided with adjustment mechanism between uninstallation sleeve (100) and exposed core (200), adjustment mechanism is used for adjusting the interval between two exposed core (200) exposed core.
2. The cable-stayed bridge cable force unloading tool according to claim 1, characterized in that: the adjusting mechanism comprises a screw section (210) arranged on the clamping arm (200), a threaded section is arranged in the tube cavity of the unloading sleeve (100), and the screw section (210) is matched with the threaded section.
3. The cable-stayed bridge cable force unloading tool according to claim 2, characterized in that: the thread directions of the thread sections at the two ends of the unloading sleeve (100) are opposite.
4. The cable-stayed bridge cable force unloading tool according to claim 3, characterized in that: the clamping arm (200) is L-shaped as a whole, and the clamping arm (200) and the unloading sleeve (100) form a U-shaped structure as a whole.
5. The cable-stayed bridge cable force unloading tool according to claim 4, characterized in that: the clamping end of the clamping arm (200) is provided with a fixed clamping plate (220) and a movable clamping plate (230), and the clamping driving unit drives the movable clamping plate (230) to be close to or loosened from the fixed clamping plate (220) so as to clamp or loosen the cable-stayed bridge cable (300).
6. The cable-stayed bridge cable force unloading tool according to claim 5, characterized in that: be provided with drive tooth section (231) on the activity splint (230), press from both sides tight drive unit including the rotary type and set up worm (232) in centre gripping arm (200) one end, worm (232) and drive tooth section (231) cooperation.
7. The cable-stayed bridge cable force unloading tool according to claim 6, characterized in that: the movable clamping plate (230) and the fixed clamping plate (220) form sliding guide fit.
8. The cable-stayed bridge cable force unloading tool according to claim 7, characterized in that: teeth are arranged between the opposite surfaces of the movable clamping plate (230) and the fixed clamping plate (220).
9. The cable-stayed bridge cable force unloading tool according to claim 7, characterized in that: and screwing heads are arranged at one end of the worm (232) and one end of the worm extending out of the clamping arm (200).
10. The cable-stayed bridge cable force unloading tool according to claim 4, characterized in that: the bending part of the clamping arm (200) is in arc transition, and the bending part of the clamping arm (200) is provided with an inclined strut (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121639501.6U CN215104774U (en) | 2021-07-19 | 2021-07-19 | Cable-stayed bridge cable force unloading tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121639501.6U CN215104774U (en) | 2021-07-19 | 2021-07-19 | Cable-stayed bridge cable force unloading tool |
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| Publication Number | Publication Date |
|---|---|
| CN215104774U true CN215104774U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202121639501.6U Active CN215104774U (en) | 2021-07-19 | 2021-07-19 | Cable-stayed bridge cable force unloading tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319127A (en) * | 2022-01-07 | 2022-04-12 | 北京城建集团有限责任公司 | Unloading method for bridge support frame |
-
2021
- 2021-07-19 CN CN202121639501.6U patent/CN215104774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319127A (en) * | 2022-01-07 | 2022-04-12 | 北京城建集团有限责任公司 | Unloading method for bridge support frame |
| CN114319127B (en) * | 2022-01-07 | 2023-10-20 | 北京城建集团有限责任公司 | Bridge support frame unloading method |
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