CN215976875U - Movable reverse stress support - Google Patents
Movable reverse stress support Download PDFInfo
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- CN215976875U CN215976875U CN202122305850.0U CN202122305850U CN215976875U CN 215976875 U CN215976875 U CN 215976875U CN 202122305850 U CN202122305850 U CN 202122305850U CN 215976875 U CN215976875 U CN 215976875U
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- movable reverse
- threaded
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- threaded rod
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Abstract
The utility model discloses a movable reverse stress support, which relates to the field of steel strand threading construction and comprises a stress frame, wherein the stress frame comprises two support rods arranged in parallel, the left ends of the support rods are fixed on the upper surface of a segment beam through fixing screws, a plurality of mounting sleeves are mounted on the right section of each support rod, a detachable connecting frame is mounted between the two front and rear opposite mounting sleeves, guide wheels are arranged on the connecting frame and can axially slide along the connecting frame, a reinforcing rod is mounted at the middle section of the bottom of each support rod, the other end of the reinforcing rod is mounted on the outer end surface of the segment beam, the movable reverse stress support can change the direction of prestress threading tension, and a prestress steel strand is threaded into a duct by changing the direction of the tension by the structure of the movable reverse stress support without the aid of external machinery.
Description
Technical Field
The utility model belongs to the field of steel strand pulling construction, and particularly relates to a movable reverse stress support.
Background
The segmental bridge can be one of the most important bridge construction modes at present, particularly, along with the continuous improvement of the scale and the continuous increase of the length of the current bridge, the application range of the current segmental bridge is continuously expanded, and along with the continuous maturity of the corresponding construction process, the current segmental bridge is gradually generally accepted, and the function of the segmental bridge is more and more prominent.
The conventional prestressed steel strand for the cantilever-assembled section beam is a single steel strand which penetrates into the prestressed duct at one end, and mechanical equipment is adopted to pull the single steel strand to penetrate the whole bundle of steel strands into the prestressed duct, so that a large amount of mechanical shifts are wasted, and the strand penetrating efficiency is low.
Therefore, we propose a movable reverse force bracket to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a movable reverse stress support, aiming at the problems that the conventional prestressed steel strand of a cantilever assembled section beam is a single steel strand with one end penetrating into a prestressed duct, and mechanical equipment is adopted to pull the single steel strand to penetrate the whole bundle of steel strands into the prestressed duct, so that a large number of mechanical shifts are wasted, and the penetrating efficiency is low.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a reverse atress support of movable, includes the atress frame, the atress frame includes two parallel arrangement's bracing piece, and the upper surface at the festival section roof beam is fixed through clamping screw to the left end of bracing piece, and a plurality of installation covers are installed to bracing piece right side section, installs the detachable link between two relative installation covers around, is provided with the leading wheel on the link, and the link endwise slip can be followed to the wire wheel.
The stiffener is installed in bracing piece bottom middle section, and the outer terminal surface at the segmental beam is installed to the other end of stiffener.
As a preferred technical scheme of the utility model, one end of the support rod is provided with a threaded hole, a fixing screw is connected with the threaded hole in a threaded manner, and the fixing screw is a T-shaped screw.
As a preferable technical scheme of the utility model, the reinforcing rod is a V-shaped rod, and a plurality of fixing holes are formed in the vertical rod of the reinforcing rod.
As a preferred technical scheme of the utility model, the connecting frame comprises a threaded rod, the threaded rod can axially slide along the mounting sleeve, four nuts are in threaded connection on the threaded rod, and the mounting sleeve is clamped and fixed between the front nut and the rear nut.
As a preferred technical scheme of the utility model, one end of the guide wheel is provided with a hook, and the hook is hung on the threaded rod.
As a preferred technical scheme of the utility model, the middle section of the threaded rod is in threaded connection with two limiting threaded sleeves, and a hook is arranged between the two limiting threaded sleeves.
As a preferred technical scheme, the support rod is connected with a sliding sleeve in a sliding mode, the top of the sliding sleeve is provided with the installation sleeve, the front face of the support rod is sequentially provided with a plurality of thread grooves from left to right, the front side wall of the sliding sleeve is provided with the fixing hole, and the fixing hole and the corresponding thread groove are connected with the same locking screw rod in an internal thread mode.
Compared with the prior art, the utility model has the beneficial effects that:
1. the movable reverse stress support can change the direction of the prestress penetrating pull force, and the prestressed steel strand penetrates into the pore channel through the change of the direction of the pull force by the structure of the movable reverse stress support without the help of external machinery.
2. This movable reverse atress support can be according to the user demand, and the position is changed at will on the segment beam end face and the installation is fixed to the bundle of wearing of convenient different positions prestressing force steel strand.
3. The movable reverse stress support can adjust the distance between the two support rods by screwing the nut so as to meet the steel strand construction of the top plate bundle, the web plate and the bottom plate bundle, and is flexible to use.
4. This movable reverse atress support through installing a plurality of installation covers on the bracing piece, can be according to the use needs of reality, the position of adjustment threaded rod and leading wheel to improve the practicality and the suitability of this support.
5. The movable reverse stress support is safe, reliable and convenient to transport, and can improve the stretching efficiency of the prestressed steel strand pulling and tightening and save the construction period.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top view of a second screw according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a three-bar support according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a three-sliding sleeve according to an embodiment of the present invention.
In the figure: the device comprises a support rod 1, an installation sleeve 2, a threaded rod 3, a nut 4, a hook 5, a guide wheel 6, a fixing screw rod 7, a reinforcing rod 8, a fixing hole 9, a threaded hole 10, a sliding sleeve 11, a threaded groove 12, a locking screw rod 13 and a limiting threaded sleeve 14.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
Referring to fig. 1-4, the present invention provides a movable reverse force-bearing support, which comprises:
the first embodiment is as follows:
according to fig. 1, including the atress frame, the atress frame includes two parallel arrangement's bracing piece 1, and the upper surface at the festival section roof beam is fixed through clamping screw 7 to the left end of bracing piece 1, and threaded hole 10 is seted up to 1 one end of bracing piece, and threaded hole 10 female connection has clamping screw 7, and clamping screw 7 is T type screw rod, and its effect lies in: the position can be changed at will on the segment beam end face according to the use requirement for installation and fixation so as to facilitate the penetration of prestressed steel strands at different positions, the right section of the support rod 1 is provided with a plurality of installation sleeves 2, the positions of the threaded rod 3 and the guide wheel 6 can be adjusted according to the actual use requirement so as to improve the practicability and applicability of the bracket, a detachable connecting frame is arranged between the two front and back opposite installation sleeves 2, the connecting frame comprises the threaded rod 3, the threaded rod 3 can slide along the axial direction of the installation sleeves 2, the threaded rod 3 is in threaded connection with four nuts 4, the installation sleeves 2 are clamped and fixed between the front and back two nuts 4, the distance between the two support rods 1 can be adjusted by screwing the nuts 4 so as to meet the steel strand construction of a top plate bundle, a web plate bundle and a bottom plate bundle, the use is flexible, the guide wheel 6 is arranged on the connecting frame, the hook 5 is installed to the one end of leading wheel 6, and the couple 5 is hung and is established on threaded rod 3, and the wire wheel can follow the link axial slip under the effect of couple 5, through setting up leading wheel 6 to change the prestressing force and wear the bundle pulling force direction, self structure passes the prestressing force stranded conductor through the change of pulling force direction and penetrates the pore in, need not rely on external machinery.
When the movable reverse stress support is used, firstly, two ends of a threaded rod 3 penetrate into two mounting sleeves 2 respectively according to the construction requirements of a steel strand, then, the distance between two supporting rods 1 is adjusted, nuts 4 are screwed one by one to fix the positions of the two mounting sleeves 2 and the positions of the supporting rods 1, then, according to the installation requirements, a plurality of slotted holes are drilled on the end faces of the segmental beams, the supporting rods 1 are fixed by using fixing screws 7, and finally, expansion bolts penetrate through fixing holes 9 to fix reinforcing rods 8, so that the movable reverse stress support is installed.
Example two:
on the basis of the first embodiment, as shown in fig. 2, two limiting threaded sleeves 14 are connected to the middle section of the threaded rod 3 in a threaded manner, the hook 5 is arranged between the two limiting threaded sleeves 14, and the two limiting threaded sleeves 14 can limit the movement of the hook 5 and the guide wheel 6, so that the hook 5 and the guide wheel 6 are prevented from sliding on the threaded rod 3.
Example three:
on the basis of the first embodiment and the second embodiment, as shown in fig. 3 and fig. 4, a sliding sleeve 11 is slidably connected to the support rod 1, an installation sleeve 2 is installed at the top of the sliding sleeve 11, a plurality of thread grooves 12 are sequentially formed in the front of the support rod 1 from left to right, a fixing hole 9 is formed in the front side wall of the sliding sleeve 11, the fixing hole 9 and the corresponding thread groove 12 are in threaded connection with a same locking screw 13, the locking screw 13 is reversely screwed through the plurality of thread grooves 12, and then the positions of the sliding sleeve 11, the threaded rod 3 and the guide wheel 6 can be adjusted according to the use requirements of the threaded rod 3 and the guide wheel 6, after the position is adjusted, the locking screw 13 is in threaded connection with the corresponding thread groove 12, and then the position of the sliding sleeve 11 can be fixed, so as to ensure that the threaded rod 3 and the guide wheel 6 have stability in the use process.
Claims (7)
1. The utility model provides a movable reverse atress support, includes the atress frame, its characterized in that: the stress frame comprises two support rods which are arranged in parallel, the left ends of the support rods are fixed on the upper surface of the section beam through fixing screws, a plurality of mounting sleeves are mounted on the right sections of the support rods, a detachable connecting frame is mounted between the two front and back opposite mounting sleeves, guide wheels are arranged on the connecting frame, and the guide wheels can axially slide along the connecting frame; the stiffener is installed in bracing piece bottom middle section, and the outer terminal surface at the segmental beam is installed to the other end of stiffener.
2. The movable reverse force bracket of claim 1, wherein: threaded holes are formed in one ends of the supporting rods, fixing screws are connected in the threaded holes in a threaded mode, and the fixing screws are T-shaped screws.
3. The movable reverse force bracket of claim 1, wherein: the stiffener is a V-shaped rod, and a plurality of fixing holes are formed in the vertical rod of the stiffener.
4. The movable reverse force bracket of claim 1, wherein: the link includes the threaded rod, and the threaded rod can follow the installation cover endwise slip, four nuts of threaded connection on the threaded rod, and the centre gripping is fixed with the installation cover between two nuts around and.
5. The movable reverse force bracket of claim 1, wherein: and a hook is mounted at one end of the guide wheel and hung on the threaded rod.
6. The movable reverse force bracket of claim 4, wherein: the middle section threaded connection of threaded rod has two spacing thread bush, is provided with the couple between two spacing thread bush.
7. The movable reverse force bracket of claim 1, wherein: sliding connection has the sliding sleeve on the bracing piece, and the installation cover is installed at the top of sliding sleeve, turns right from a left side in the front of bracing piece and has seted up a plurality of thread grooves in proper order, and the fixed orifices has been seted up to the preceding lateral wall of sliding sleeve, and fixed orifices and corresponding thread groove female connection have same locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122305850.0U CN215976875U (en) | 2021-09-23 | 2021-09-23 | Movable reverse stress support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122305850.0U CN215976875U (en) | 2021-09-23 | 2021-09-23 | Movable reverse stress support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215976875U true CN215976875U (en) | 2022-03-08 |
Family
ID=80464753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122305850.0U Active CN215976875U (en) | 2021-09-23 | 2021-09-23 | Movable reverse stress support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215976875U (en) |
-
2021
- 2021-09-23 CN CN202122305850.0U patent/CN215976875U/en active Active
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