CN214925593U - Portable prefabricated box girder prestressing force stretch-draw auxiliary device - Google Patents
Portable prefabricated box girder prestressing force stretch-draw auxiliary device Download PDFInfo
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- CN214925593U CN214925593U CN202120861108.5U CN202120861108U CN214925593U CN 214925593 U CN214925593 U CN 214925593U CN 202120861108 U CN202120861108 U CN 202120861108U CN 214925593 U CN214925593 U CN 214925593U
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- box girder
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Abstract
The utility model discloses a portable precast box girder prestressing force stretch-draw auxiliary device, paste including frame and operation, the outer frame middle-end is provided with the motor that rises, and the lower extreme of the motor that just rises is connected with the slide bar, and the outer end of slide bar is provided with the fixed support pole, the left end outside of fixed support pole is provided with glue, and the outer end of glue is provided with the operation and pastes, outer frame bottom upside is provided with the screw, and the upper end of screw is connected with the motor. This portable precast box girder prestressing force stretch-draw auxiliary device is provided with outer frame, and outer frame middle-end upper wall and the lower end lower wall of ascending motor are laminated each other, and the ascending motor can be hoisted the goods and materials in the upper end and carry out tensile supplementary, and outer frame stable in structure is convenient for like this hang the thing more moreover, also facilitates the use in the operation more.
Description
Technical Field
The utility model relates to a prefabricated case roof beam technical field specifically is a portable prefabricated case roof beam prestressing force stretch-draw auxiliary device.
Background
At present, the precast assembled box girders of a bridge are connected by hinge joints, the construction quality of narrow and deep hinge joints cannot be guaranteed, and the connection of new and old concrete between hinge joint concrete and precast girder concrete is a weak surface. Under the action of vehicle load (especially overload vehicle), the hinge joint is easy to crack, so that rainwater permeates into the hinge joint to accelerate the damage of the hinge joint. The broken hinge joint easily causes 'single plate stress', so that the box girder is broken under the action of vehicle load. The existing reinforcement technology is to stretch and draw transverse prestress along the lower surface of a box girder bottom plate to ensure that each box girder is integrally stressed, and the reinforcement method exposes prestressed tendons to influence the appearance.
When the prefabricated box girder prestress tensioning auxiliary device in the market is used, the box girder needs to be tensioned through temporary prestress in the installation stage, and then a tensioning system is converted into permanent prestress. The traditional temporary prestress is formed by combining pre-buried pipelines, steel tooth sills and finish-rolled deformed steel bars, namely the steel tooth sills are tensioned and oppositely pulled, namely the steel tooth sills are fixed on the concrete surface of a box girder through anchor bolts, the anchor bolts are required to reserve installation pipelines in the concrete of the box girder, a tensioning system is in shear resistance with the concrete through the anchor bolts, and the two steel tooth sills are mutually connected and tensioned through the finish-rolled deformed steel bars; the roof hole that causes is many, and anchor bolt construction is loaded down with trivial details, and case roof beam concrete repair work volume is big, and very easily leads to the roof infiltration, leaks, for this reason, we provide a portable prefabricated case roof beam prestressing force stretch-draw auxiliary device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable prefabricated box girder prestressing force stretch-draw auxiliary device to the box girder that proposes in solving above-mentioned background art needs earlier carry out the stretch-draw through interim prestressing force at the installation stage, changes the stretch-draw system into permanent prestressing force again. The traditional temporary prestress is formed by combining pre-buried pipelines, steel tooth sills and finish-rolled deformed steel bars, namely the steel tooth sills are tensioned and oppositely pulled, namely the steel tooth sills are fixed on the concrete surface of a box girder through anchor bolts, the anchor bolts are required to reserve installation pipelines in the concrete of the box girder, a tensioning system is in shear resistance with the concrete through the anchor bolts, and the two steel tooth sills are mutually connected and tensioned through the finish-rolled deformed steel bars; cause the roof hole many, anchor bolt construction is loaded down with trivial details, and case roof beam concrete repair work volume is big, and very easily leads to the roof infiltration, the problem of leaking.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a portable precast box girder prestressing force stretch-draw auxiliary device, pastes including frame and operation, outer frame middle-end is provided with the motor that rises, and the lower extreme of the motor that just rises is connected with the slide bar, and the outer end of slide bar is provided with the fixed stay pole, the left end outside of fixed stay pole is provided with glue, and the outer end of glue is provided with the operation subsides, outer frame bottom upside is provided with the screw, and the upper end of screw is connected with the motor, the bottom lower part of outer frame is provided with the universal wheel, and the outer frame right-hand member is provided with the pivot, the outer end of pivot is provided with the gyro wheel, and the right-hand member of gyro wheel is provided with rotatory handle, rotatory handle upper end is provided with the couple.
Preferably, the upper wall of the middle end of the outer frame is attached to the lower wall of the lower end of the ascending motor, and the outer frame and the ascending motor form a sliding structure through a sliding rod.
Preferably, the outer frame and the universal wheels are vertically distributed, and the number of the universal wheels is six.
Preferably, the outer frame and the motor are distributed in parallel, and the outer frame and the motor form a detachable structure through screws.
Preferably, the fixed support rod is built for the triangle structure, and fixed support rod and outer frame are welded connection.
Preferably, the roller and the rotating handle are distributed in a rotating structure vertical manner, and the roller and the rotating handle are in a rotating structure.
Compared with the prior art, the beneficial effects of the utility model are that: this portable precast box girder prestressing force stretch-draw auxiliary device is provided with outer frame, and outer frame middle-end upper wall and the lower end lower wall of ascending motor are laminated each other, and the ascending motor can be hoisted the goods and materials in the upper end and carry out tensile supplementary, and outer frame stable in structure is convenient for like this hang the thing more moreover, also facilitates the use in the operation more.
Outer frame and motor with be the parallel form and distribute, it is more convenient when dismantling the result and install or later stage again, at first be fixed in outer frame upper end with the motor base, then fix through the screw, the motor can not rock when using.
The fixed support rod is built for the triangle structure, and the triangle form is the most firm state, so can improve stably, can also let the structure more stable.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a left side view structure diagram of the present invention.
In the figure: 1. an outer frame; 2. a lifting motor; 3. a slide bar; 4. fixing the support rod; 5. operating the paste; 6. glue; 7. a universal wheel; 8. a motor; 9. a screw; 10. a rotating shaft; 11. a roller; 12. rotating the handle; 13. and (4) hanging hooks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a movable prestressed tensioning auxiliary device for a prefabricated box girder comprises an outer frame 1, a lifting motor 2, a slide bar 3, a fixed support bar 4, an operation sticker 5, glue 6, universal wheels 7, a motor 8, screws 9, a rotating shaft 10, rollers 11, a rotating handle 12 and a hook 13, wherein the lifting motor 2 is arranged at the middle end of the outer frame 1, the lower end of the lifting motor 2 is connected with a slide bar 3, the outer end of the slide bar 3 is provided with a fixed support bar 4, the outer side of the left end of the fixed support bar 4 is provided with glue 6, an operation sticker 5 is arranged at the outer end of the glue 6, a screw 9 is arranged at the upper side of the bottom end of the outer frame 1, a motor 8 is connected at the upper end of the screw 9, a universal wheel 7 is arranged at the lower part of the bottom end of the outer frame 1, and the right end of the outer frame 1 is provided with a rotating shaft 10, the outer end of the rotating shaft 10 is provided with a roller 11, the right end of the roller 11 is provided with a rotating handle 12, and the upper end of the rotating handle 12 is provided with a hook 13.
In the utility model, the upper wall of the middle end of the outer frame 1 and the lower wall of the lower end of the ascending motor 2 are mutually attached, and the outer frame 1 and the ascending motor 2 form a sliding structure through the sliding rod 3, the ascending motor 2 can lift materials at the upper end for stretching assistance, and the outer frame 1 is stable in structure, so that the materials can be more conveniently lifted, and the use is more convenient in operation;
the outer frame 1 and the universal wheels 7 are vertically arranged, the number of the universal wheels 7 is six, the six universal wheels are required for movement, the six universal wheels 7 are more stable, the damage caused by inclination or overlarge pressure cannot occur, and the use is longer;
the outer frame 1 and the motor 8 are distributed in parallel, the outer frame 1 and the motor 8 form a detachable structure through screws 9, the detachment result is more convenient to mount or detach at a later stage, firstly, a base of the motor 8 is fixed at the upper end of the outer frame 1, and then, the motor 8 is fixed through the screws 9, and cannot shake when being used;
the fixed support rod 4 is built in a triangular structure, the fixed support rod 4 is connected with the outer frame 1 in a welding mode, the fixed support rod 4 is in a triangular shape, and the triangular shape is the most stable state, so that stability can be improved, and the structure can be more stable;
gyro wheel 11 is vertical form with rotatory handle 12 and distributes, and gyro wheel 11 is revolution mechanic with rotatory handle 12, and gyro wheel 11 mainly collects electric wire, spool class, rotates rotatory handle 12 when using after that, then drives gyro wheel 11 through pivot 10, sets up simple and practical like this.
The working principle is as follows: to the portable precast box girder prestressing force tensioning auxiliary device of this type at first inspect through outer frame 1 inner before using, at first inspect whether the motor 8 lower extreme is firm, then lift the object through ascending motor 20, need slide, outer frame 1 stable in structure is so convenient for hang the thing more, also facilitate the use in the operation more, then outer frame 1 passes through screw 9 with motor 8 and constitutes, it is more convenient later stage after more to dismantle when dismantling the result and reinstallating or later stage are dismantled, collect the electric wire at last, wait during the spool class, use gyro wheel 11 to collect, need rotate rotatory handle 12 this moment, then drive gyro wheel 11 through pivot 10, set up simple and practical like this, just so accomplish the use of whole portable precast box girder prestressing force tensioning auxiliary device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a portable precast box girder prestressing force stretch-draw auxiliary device, includes outer frame (1) and couple (13), its characterized in that: the utility model discloses a motor, including outer frame (1), the lower extreme of just rising motor (2) is connected with slide bar (3) in the middle-end of outer frame (1), and the outer end of slide bar (3) is provided with fixed stay bar (4), the left end outside of fixed stay bar (4) is provided with glue (6), and the outer end of glue (6) is provided with operation subsides (5), outer frame (1) bottom upside is provided with screw (9), and the upper end of screw (9) is connected with motor (8), the bottom lower part of outer frame (1) is provided with universal wheel (7), and outer frame (1) right-hand member is provided with pivot (10), the outer end of pivot (10) is provided with gyro wheel (11), and the right-hand member of gyro wheel (11) is provided with rotatory handle (12), rotatory handle (12) upper end is provided with couple (13).
2. The mobile precast box girder prestress tensioning auxiliary device according to claim 1, wherein: the upper wall of the middle end of the outer frame (1) is attached to the lower wall of the lower end of the ascending motor (2), and the outer frame (1) and the ascending motor (2) form a sliding structure through a sliding rod (3).
3. The mobile precast box girder prestress tensioning auxiliary device according to claim 1, wherein: the outer frame (1) and the universal wheels (7) are vertically distributed, and the number of the universal wheels (7) is six.
4. The mobile precast box girder prestress tensioning auxiliary device according to claim 1, wherein: the outer frame (1) and the motor (8) are distributed in parallel, and the outer frame (1) and the motor (8) form a detachable structure through screws (9).
5. The mobile precast box girder prestress tensioning auxiliary device according to claim 1, wherein: the fixed support rod (4) is built for a triangular structure, and the fixed support rod (4) is connected with the outer frame (1) in a welding mode.
6. The mobile precast box girder prestress tensioning auxiliary device according to claim 1, wherein: the roller (11) and the rotating handle (12) are vertically distributed, and the roller (11) and the rotating handle (12) are in a rotating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120861108.5U CN214925593U (en) | 2021-04-25 | 2021-04-25 | Portable prefabricated box girder prestressing force stretch-draw auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120861108.5U CN214925593U (en) | 2021-04-25 | 2021-04-25 | Portable prefabricated box girder prestressing force stretch-draw auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214925593U true CN214925593U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120861108.5U Active CN214925593U (en) | 2021-04-25 | 2021-04-25 | Portable prefabricated box girder prestressing force stretch-draw auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214925593U (en) |
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2021
- 2021-04-25 CN CN202120861108.5U patent/CN214925593U/en active Active
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