CN214302952U - Embedded screw rod positioner of assembled stair - Google Patents
Embedded screw rod positioner of assembled stair Download PDFInfo
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- CN214302952U CN214302952U CN202023270405.7U CN202023270405U CN214302952U CN 214302952 U CN214302952 U CN 214302952U CN 202023270405 U CN202023270405 U CN 202023270405U CN 214302952 U CN214302952 U CN 214302952U
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Abstract
The utility model discloses an assembly type stair pre-buried screw positioning device, which comprises a connecting rod and two bases, wherein the bases are provided with first screws, the first screws are provided with first positioning nuts, and the first positioning nuts on the two first screws are at the same height; the connecting rod is horizontally arranged, mounting holes are formed in the two ends of the connecting rod, the mounting holes of the connecting rod are sleeved on the first screw and located above the first positioning nut, and the connecting rod is fixed through the first fastening nut; and the connecting rod is provided with a long slot hole for installing the embedded screw. The utility model discloses utilize the connecting rod to guarantee that pre-buried screw rod is in on same water flat line, and pre-buried screw rod is mutually perpendicular with the connecting rod, can not be crooked at the concrete placement in-process, the installation degree of difficulty of greatly reduced prefabricated staircase improves the success rate of prefabricated staircase installation.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to pre-buried screw rod positioner of assembled stair.
Background
In the assembly type building, the integrally cast reinforced concrete stair is split into a rest platform section and a stair section, the rest platform section is usually cast in situ, and the stair section is prefabricated. The link of prefabricated bench of stair has two holes, and when the construction of half space, the pre-buried bolt of two pre-buried area anchor heads, then the concrete reaches after the intensity, begins to hoist. The prefabricated bench is hoisted by the tower crane, and the connecting holes in the prefabricated bench and the pre-buried screws in the rest platform are fixed through filling cement mortar after aligning the holes. In the construction process, if the clear distance between the two embedded screws has deviation or the embedded screws are inclined in the concrete pouring process, the installation difficulty of the prefabricated staircase is greatly increased, and the installation success rate of the prefabricated staircase is influenced.
Disclosure of Invention
The utility model aims at solving the above problem, provide one kind and can avoid pre-buried screw rod to warp, reduce the pre-buried screw rod positioner of assembled stair of the prefabricated stair installation degree of difficulty.
The technical scheme of the utility model is that: an assembly type stair pre-buried screw positioning device comprises a connecting rod and two bases, wherein first screws are mounted on the bases, first positioning nuts are arranged on the first screws, and the first positioning nuts on the two first screws are located at the same height; the connecting rod is horizontally arranged, mounting holes are formed in the two ends of the connecting rod, the mounting holes of the connecting rod are sleeved on the first screw and located above the first positioning nut, and the connecting rod is fixed through the first fastening nut; and the connecting rod is provided with a long slot hole for installing the embedded screw.
Preferably, the base is split heads type structure, including the stabilizer blade of top surface and both sides, is equipped with the screw on the top surface, and first screw rod lower extreme is equipped with the convex spacing ring of round, and first screw rod is installed in the screw, and the spacing ring supports in the screw top.
Preferably, the long slotted hole on the connecting rod is of a slender structure, and the two mounting holes are located at two ends of the long slotted hole.
During construction:
1) screwing second positioning nuts into the embedded screws, and enabling the second positioning nuts on the two embedded screws to be located at the same position;
2) the two embedded screws penetrate through the long slotted holes of the connecting rod, second fastening nuts are screwed into the embedded screws, the first embedded screw is fixed, then the position of the second embedded screw is adjusted, the second embedded screw is fixed after the distance between the two embedded screws reaches a set value, and the two embedded screws are fixed on the connecting rod and are perpendicular to the connecting rod;
3) after the rest platform formwork is completed and the bottom ribs are bound, fixing the two bases on the formwork according to the preset positions;
4) installing a first screw rod in a screw hole of a base;
5) screwing first positioning nuts into the first screw rod, and adjusting the height to enable the two first positioning nuts to be at the same height;
6) sleeving two ends of a connecting rod on a first screw, screwing a first fastening nut, fixing the connecting rod above a first positioning nut, and leveling two ends of the connecting rod;
7) pouring concrete;
8) after the concrete is initially set, removing the connecting rod and the first screw rod, and placing the lower end of the embedded screw rod in the concrete;
9) repairing the hole left after the first screw rod is removed;
10) and starting to hoist the prefabricated stair sections.
The utility model installs two pre-embedded screws on the same connecting rod, and adjusts the installation height and the distance of the two pre-embedded screws in advance, so that the distance between the two pre-embedded screws reaches a set value, which is convenient for the installation of the follow-up prefabricated staircase; the connecting rod both ends are injectd by the first set nut of same height for the connecting rod both ends flush, keep the horizontality, guarantee that two pre-buried screw rods are in same water flat line, and two pre-buried screw rods are mutually perpendicular with the connecting rod, can not be crooked at the concrete placement in-process, and the installation degree of difficulty of greatly reduced prefabricated staircase improves the success rate of prefabricated staircase installation.
The utility model discloses a pre-buried screw rod positioner except that the base can stay in the concrete, connecting rod, first screw rod and supporting set nut, fastening nut all can be demolishd, repeatedly usable reduces construction cost.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the connecting rod of the present invention;
fig. 3 is a construction process diagram of the utility model.
Labeled as: the concrete formwork comprises a base 1, a connecting rod 2, a mounting hole 21, a long slotted hole 22, a first screw rod 3, a limiting ring 31, a first positioning nut 41, a first fastening nut 42, a second positioning nut 43, a second fastening nut 44, an embedded screw rod 5, a formwork 6 and concrete 7.
Detailed Description
See the drawings. This embodiment pre-buried screw rod positioner, including two bases 1 and connecting rod 2, base 1 is split heads type structure, including the stabilizer blade of top surface and both sides, is equipped with the screw on the 1 top surface of base, installs first screw rod 3 on every base 1, and 3 lower extremes of first screw rod are equipped with the convex spacing ring 31 of round, and first screw rod is installed in the screw, and the spacing ring supports in the screw top. The first screw rods 3 are provided with first positioning nuts 41, and the first positioning nuts 41 on the two first screw rods 3 are at the same height; the connecting rod 2 is horizontally arranged, mounting holes 21 are formed in two ends of the connecting rod 2, the mounting holes 21 of the connecting rod are sleeved on the first screw rods 3 and fixed through first fastening nuts 42, and the connecting rod 2 is located above the first positioning nuts 41; the connecting rod 2 is provided with a long slotted hole 22 for installing the embedded screw, the long slotted hole is of a slender structure, the long slotted hole is parallel to the long edge of the connecting rod, and the two installing holes are arranged at two ends of the long slotted hole.
During construction:
1) as shown in fig. 3 (a), the two embedded screws 5 are respectively screwed with the second positioning nuts 43, and the two second positioning nuts 43 are located at the same positions of the two embedded screws;
2) penetrating two embedded screws 5 through the long slotted holes of the connecting rod 2, screwing second fastening nuts 44 on the embedded screws 5, fixing the first embedded screw, moving the second embedded screw which is not fixed according to the interval in the drawing, and fixing the second embedded screw after the set interval is reached, so that the two embedded screws are fixed on the connecting rod and are perpendicular to the connecting rod;
3) as shown in fig. 3 (b), after the rest platform formwork is completed and the bottom ribs are bound, according to the design drawing, the two bases 1 are nailed on the formwork 6 by using nails;
4) as shown in fig. 3 (c), two first screws 3 are respectively installed in screw holes of two bases 1, the first screws and the screw holes are fixed in a thread fit manner, and a limiting ring can limit the length of the first screws inserted into the bases;
5) screwing a first positioning nut 41 into the first screw rod 3, and adjusting the height to enable the two first positioning nuts to be at the same height; enabling the distance between the bottoms of the two first positioning nuts to be 50CM from the finished surface of the concrete floor slab;
6) as shown in fig. 3 (d), two ends of the connecting rod 2 provided with the embedded screws are sleeved on the first screws 3, and the first fastening nuts 42 are screwed on the first screws to fix the connecting rod; two ends of the connecting rod are positioned above the first positioning nut, so that the two ends are flush;
7) at the moment, the two embedded screws 5 are positioned at the same height, the lower ends of the embedded screws face to the template of the rest platform, and concrete is poured;
8) as shown in fig. 3 (e), after the concrete 7 is initially set, the first screw 3 and the first and second fastening nuts on the embedded screw 5 are unscrewed, the connecting rod 2 and the first and second positioning nuts are removed, and the first screw 3 is removed by using an electric wrench; at the moment, the base 1 is left in the concrete, the lower end of the embedded screw 5 is arranged in the concrete, and other parts can be detached and can be repeatedly used;
9) as shown in fig. 3 (f), holes left after the first screws 3 are removed are repaired, and the embedded screws are smoothly fixed on the resting platform;
10) and starting to hoist the prefabricated stair sections and entering a normal construction stage.
Claims (3)
1. The utility model provides an embedded screw rod positioner of assembled stair which characterized in that: the connecting rod and the two bases are included, the first screw rods are mounted on the bases, first positioning nuts are arranged on the first screw rods, and the first positioning nuts on the two first screw rods are located at the same height; the connecting rod is horizontally arranged, mounting holes are formed in the two ends of the connecting rod, the mounting holes of the connecting rod are sleeved on the first screw and located above the first positioning nut, and the connecting rod is fixed through the first fastening nut; and the connecting rod is provided with a long slot hole for installing the embedded screw.
2. The positioning device for the pre-embedded screws of the assembled stairway as claimed in claim 1, wherein: the base is a split heads type structure, and includes the stabilizer blade of top surface and both sides, is equipped with the screw on the top surface, and first screw rod lower extreme is equipped with the convex spacing ring of round, and first screw rod is installed in the screw, and the spacing ring supports above the screw.
3. The positioning device for the pre-embedded screws of the assembled stairway as claimed in claim 1, wherein: the long slotted hole on the connecting rod is of a slender structure, and the two mounting holes are positioned at two ends of the long slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270405.7U CN214302952U (en) | 2020-12-30 | 2020-12-30 | Embedded screw rod positioner of assembled stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270405.7U CN214302952U (en) | 2020-12-30 | 2020-12-30 | Embedded screw rod positioner of assembled stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214302952U true CN214302952U (en) | 2021-09-28 |
Family
ID=77819656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023270405.7U Active CN214302952U (en) | 2020-12-30 | 2020-12-30 | Embedded screw rod positioner of assembled stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214302952U (en) |
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2020
- 2020-12-30 CN CN202023270405.7U patent/CN214302952U/en active Active
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