CN212153952U - Prefabricated assembled stair - Google Patents
Prefabricated assembled stair Download PDFInfo
- Publication number
- CN212153952U CN212153952U CN202020644264.1U CN202020644264U CN212153952U CN 212153952 U CN212153952 U CN 212153952U CN 202020644264 U CN202020644264 U CN 202020644264U CN 212153952 U CN212153952 U CN 212153952U
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- Prior art keywords
- prefabricated
- connecting cylinder
- sleeve
- stair
- roof beam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 230000002093 peripheral effect Effects 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 9
- 241000538562 Banjos Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a prefabricated assembled stair, including prefabricated stair, prefabricated stair overlap joint is between last terraced roof beam and lower terraced roof beam, go up terraced roof beam and lower terraced roof beam and all pre-buried dead lever that has, prefabricated stair include step section and overlap joint ladder end on last terraced roof beam and lower terraced roof beam, be equipped with the built-in fitting in the ladder end, the pre-buried sleeve that the built-in fitting passed for supplying the dead lever, can dismantle on the pre-buried sleeve and be connected with the connecting cylinder, be equipped with the fixture block on the periphery side of connecting cylinder one end, the fixture block is provided with two along the axis symmetry of connecting cylinder, the one end that the axial groove was kept away from to the circumferential groove is equipped with the caulking groove that supplies the fixture block card to go into, still be equipped with between connecting cylinder and the pre-buried sleeve and be used for fixing the. The utility model discloses need not to set up the screw hole in addition on prefabricated staircase, have the advantage that improves the whole construction progress of prefabricated staircase.
Description
Technical Field
The utility model belongs to the technical field of prefabricated staircase technique and specifically relates to a prefabricated assembled stair is related to.
Background
At present, the prefabricated assembled stairway is characterized in that concrete is used for pouring out the needed stairway in a prefabricating factory, and then the stairway is transported to an installation site for installation.
Chinese patent document No. CN207330117U discloses a pre-installed stair, which is overlapped on a preset installation platform, the preset installation platform is provided with a fixing rod, both ends of the pre-installed stair are provided with a preformed hole matched with the fixing rod, and the pre-installed stair is matched with the fixing rod through the preformed hole, so that the pre-installed stair can be stably installed on the preset installation platform.
The above prior art solutions have the following drawbacks: in the prior art, when a prefabricated staircase is installed, the prefabricated staircase needs to be fixed on the prefabricated staircase through a lifting appliance, and then the prefabricated staircase is transported to a position to be installed under the action of lifting equipment so as to be installed between an upper staircase beam and a lower staircase beam; because the hoist is fixed when the prefabricated staircase, is fixed through bolt and prefabricated staircase, need set up screw hole and bolt cooperation on the prefabricated staircase, after the installation is accomplished, fills the screw hole through the concrete again, and then influences the holistic construction progress of prefabricated staircase.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a prefabricated assembled stair, it need not to set up the screw hole in addition on prefabricated stair, has the advantage that improves the whole construction progress of prefabricated stair.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a prefabricated assembled stair comprises a prefabricated stair body, wherein the prefabricated stair body is lapped between an upper stair beam and a lower stair beam, fixing rods are embedded in the upper stair beam and the lower stair beam, the prefabricated stair body comprises stair sections and stair ends lapped on the upper stair beam and the lower stair beam, embedded parts are arranged in the stair ends and are embedded sleeves for the fixing rods to penetrate through, connecting cylinders are detachably connected to the embedded sleeves, two clamping blocks are symmetrically arranged on the outer peripheral sides of one ends of the connecting cylinders along the central axis of the connecting cylinders, axial grooves for the clamping blocks to be clamped in the axial direction of the clamping blocks are formed in the inner side walls of the embedded sleeves, circumferential grooves for the clamping blocks to be clamped in the circumferential direction of the circumferential grooves are formed in the bottoms of the axial grooves, embedding grooves for the clamping blocks to be clamped in are formed in the ends, far away from the axial grooves, of the circumferential grooves, fixing parts for fixing the clamping blocks in the embedding grooves are further arranged between the connecting cylinders, and a hanging ring is arranged at one end of the connecting cylinder, which is far away from the clamping block.
By adopting the technical scheme, the clamping blocks on the connecting cylinder are clamped into the bottom of the axial groove on the inner peripheral wall of the embedded sleeve, then, the connecting cylinder is rotated to enable the clamping block to enter the caulking groove at the tail end of the circumferential groove and be fixed in the caulking groove through the fixing piece, after the connecting cylinder is connected on each embedded sleeve, the prefabricated staircase can be matched with the clamping hook of the hoisting equipment through the hanging ring on the connecting cylinder to hoist the prefabricated staircase, the prefabricated staircase is arranged between the upper ladder beam and the lower ladder beam, the fixed rod is inserted into the pre-buried sleeve, then the connecting cylinder is taken out from the pre-buried sleeve, and then the pre-buried sleeve is filled, the installation of the prefabricated staircase can be realized, the scheme does not need to additionally arrange a threaded hole on the prefabricated staircase, and through the matching with the embedded sleeve, can realize the hoist and mount of prefabricated stair, and only need fill pre-buried sleeve, and then improve the whole construction progress of prefabricated stair.
The present invention may be further configured in a preferred embodiment as: the fixing piece is a threaded sleeve which is rotatably connected with the outer peripheral wall of one end, far away from the clamping block, of the connecting cylinder, two limiting rings are arranged on the outer peripheral wall of the connecting cylinder in a protruding mode, the two limiting rings are respectively abutted against two ends of the threaded sleeve, and the outer diameter of each limiting ring is smaller than that of the threaded sleeve; the equipartition has the external screw thread on the periphery wall of thread bush, the internal perisporium of embedded sleeve is close to axial groove one end and offers the internal thread with the external screw thread looks adaptation of thread bush.
Through adopting above-mentioned technical scheme, when the fixture block got into the axial groove, through rotating the thread bush for the thread bush drives the connecting cylinder and removes, and when the fixture block reachd the bottom in axial groove, when rotating the connecting cylinder for the fixture block reachd the caulking groove position of circumference groove one end, the reverse rotation thread bush makes in the fixture block card goes into the caulking groove, and then realizes the fixed of connecting cylinder.
The present invention may be further configured in a preferred embodiment as: and an annular convex edge is arranged on the peripheral wall of the embedded sleeve.
Through adopting above-mentioned technical scheme, through the annular protruding edge that sets up, the joint strength between multiplicable embedded sleeve and the ladder end.
The present invention may be further configured in a preferred embodiment as: the annular convex edge is provided with a plurality of annular convex edges, and the intervals between the adjacent annular convex edges are the same.
Through adopting above-mentioned technical scheme, through the protruding edge of a plurality of annulars that set up, can further increase the joint strength of pre-buried sleeve and ladder end.
The present invention may be further configured in a preferred embodiment as: and the peripheral wall of one end, close to the hanging ring, of the threaded sleeve is provided with a screwing block which is abutted to the upper end face of the ladder end when the clamping block is clamped into the bottom of the axial groove.
By adopting the technical scheme, the moving position of the clamping block can be conveniently determined by the arranged screwing block, so that the installation of the connecting cylinder is accelerated.
The present invention may be further configured in a preferred embodiment as: the screwing block is of a hexagonal prism structure.
By adopting the technical scheme, the screwing block is of a hexagonal prism structure, so that the threaded sleeve can be conveniently rotated.
The present invention may be further configured in a preferred embodiment as: the joint of the axial groove and the circumferential groove is in arc transition.
Through adopting above-mentioned technical scheme, because the department that links up of axial groove and circumference groove is the arc transition, when the fixture block reachd axial groove and circumference groove linking department, can be natural transition to the circumference inslot.
The present invention may be further configured in a preferred embodiment as: the annular convex edge and the embedded sleeve are of an integrally formed structure.
By adopting the technical scheme, the annular convex edge and the embedded sleeve are of an integrally formed structure, so that the production cost can be reduced, and the processing efficiency can be improved.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through connect the connecting cylinder that has rings on pre-buried sleeve, can make things convenient for the hoist and mount of prefabricated stair, need not to set up the screw hole in addition on prefabricated stair, only needs to fill pre-buried sleeve, and then improves the whole construction progress of prefabricated stair.
2. The connection strength between the connecting cylinder and the embedded sleeve can be increased through the arranged thread bush.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a schematic cross-sectional view of the embedded sleeve of the present embodiment;
FIG. 3 is an exploded view of the banjo connector of the present embodiment;
fig. 4 is an overall sectional view schematically showing the present embodiment.
Reference numerals: 1. prefabricating a stair; 2. climbing a ladder beam; 3. descending the ladder beam; 4. a ladder end; 5. a stepped section; 6. fixing the rod; 7. a connecting cylinder; 8. a clamping block; 9. an axial slot; 10. a circumferential groove; 11. caulking grooves; 12. a hoisting ring; 13. a threaded sleeve; 14. screwing blocks; 15. a limiting ring; 16. a countersunk groove; 17. an annular convex edge; 18. fastening a bolt; 19. a nut; 20. and (6) embedding the sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a prefabricated assembled stair, including prefabricated stair 1, prefabricated stair 1 overlap joint is between last terraced roof beam 2 and lower terraced roof beam 3, and prefabricated stair 1 includes ladder section 5 and overlap joint ladder end 4 on last terraced roof beam 2 and lower terraced roof beam 3, and ladder end 4 is equipped with the built-in fitting, and the built-in fitting is pre-buried sleeve 20. The fixing rods 6 used for inserting the inner embedded sleeves 20 are embedded in the upper ladder beam 2 and the lower ladder beam 3, and after the prefabricated staircase 1 is matched with the fixing rods 6 through the embedded sleeves 20 at the two ends, concrete is poured into the embedded sleeves 20, so that the prefabricated staircase 1 is fixed between the upper ladder beam 2 and the lower ladder beam 3.
Referring to fig. 2 and 3, the embedded sleeve 20 is detachably connected with the connecting cylinder 7, two clamping blocks 8 are arranged on the outer peripheral side of one end of the connecting cylinder 7, and the two clamping blocks 8 are symmetrically distributed along the axis of the connecting cylinder 7. An axial groove 9 for the clamping block 8 to be clamped in along the axis direction is formed in the inner side wall of the embedded sleeve 20, a circumferential groove 10 for the clamping block 8 to be clamped in along the circumferential direction is formed in the bottom of the axial groove 9, and an embedding groove 11 for the clamping block 8 to be clamped in is formed in one end, far away from the axial groove 9, of the circumferential groove 10. Furthermore, the junction between the axial groove 9 and the circumferential groove 10 is in arc transition. When the clamping block 8 is clamped at the bottom of the axial groove 9, the clamping block can naturally enter the circumferential groove 10 through arc transition.
Referring to fig. 3, one end of the connecting cylinder 7, which is far away from the clamping block 8, is provided with a hanging ring 12, and the hanging ring 12 can be matched with a hook of a hoisting device, so that the hoisting device is conveniently connected with the prefabricated staircase 1.
Referring to fig. 3 and 4, a threaded sleeve 13 is rotatably connected to one end of the outer peripheral wall of the connecting cylinder 7, which is close to the hanging ring 12, external threads are uniformly distributed on the outer peripheral wall of the threaded sleeve 13, and a hexagonal prism-shaped screwing block 14 is arranged on the outer peripheral wall of one end of the threaded sleeve 13, which is close to the hanging ring 12. Furthermore, two limiting rings 15 protrude from the outer peripheral wall of the connecting cylinder 7, the two limiting rings 15 abut against the two ends of the threaded sleeve 13 respectively, and the outer diameter of the limiting rings 15 is smaller than that of the threaded sleeve 13. The rotary connection of the threaded sleeve 13 is realized by two stop rings 15. One end of the inner peripheral wall of the embedded sleeve 20, which is close to the axial groove 9, is provided with an internal thread matched with the external thread of the thread sleeve 13. Furthermore, one end of the embedded sleeve 20 close to the axial groove 9 is provided with a countersunk groove 16 matched with the thread sleeve 13, and the internal thread is arranged on the groove wall of the countersunk groove 16.
Referring to fig. 3 and 4, a plurality of annular convex edges 17 are integrally formed on the outer peripheral wall of the embedded sleeve 20, and preferably, the number of the annular convex edges 17 is two, and the arrangement of the annular convex edges 17 can increase the connection strength between the embedded sleeve 20 and the ladder end 4.
Referring to fig. 3 and 4, a fastening bolt 18 penetrates through the outer peripheral wall of one end, away from the fixture block 8, of the connecting cylinder 7, the hanging ring 12 is in a U shape, through holes for the fastening bolt 18 to pass through are formed in two ends of the hanging ring 12, the fastening bolt 18 sequentially passes through the hanging ring 12 and the connecting cylinder 7, and the hanging ring 12 is fixed through a nut 19.
The installation process of this embodiment:
when the prefabricated staircase 1 is hoisted, the clamping block 8 on the connecting cylinder 7 is clamped into the axial groove 9, then the clamping block 8 moves along the axial groove 9 by rotating the threaded sleeve 13, when the screwing block 14 abuts against the upper surface of the staircase end 4 and the clamping block 8 reaches the bottom of the axial groove 9, the clamping block 8 reaches the notch of the embedded groove 11 by rotating the connecting cylinder 7, then the threaded sleeve 13 is reversely rotated to clamp the clamping block 8 into the embedded groove 11 to fix the connecting cylinder 7, then the hoisting ring 12 is matched with the hoisting equipment trip, the prefabricated staircase 1 is arranged between the upper staircase beam 2 and the lower staircase beam 3, the fixing rod 6 is inserted into the embedded sleeve 20, then the threaded sleeve 13 is rotated to separate the clamping block 8 from the embedded groove 11, then the connecting cylinder 7 is rotated to enable the clamping block 8 to reach the position of the axial groove 9, the threaded sleeve 13 is screwed out of the embedded sleeve 20, the embedded sleeve 20 is filled by concrete, and further, the installation of the prefabricated staircase 1 is realized.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a prefabricated assembled stair, includes prefabricated stair (1), prefabricated stair (1) overlap joint is between last terraced roof beam (2) and lower terraced roof beam (3), it has dead lever (6), its characterized in that all to pre-embed on going up terraced roof beam (2) and lower terraced roof beam (3): the prefabricated staircase (1) comprises a staircase section (5) and a staircase end (4) overlapped on an upper staircase beam (2) and a lower staircase beam (3), wherein an embedded part is arranged in the staircase end (4), the embedded part is an embedded sleeve (20) for a fixed rod (6) to pass through, a connecting cylinder (7) is detachably connected on the embedded sleeve (20), clamping blocks (8) are arranged on the outer peripheral side of one end of the connecting cylinder (7), two clamping blocks (8) are symmetrically arranged along the central axis of the connecting cylinder (7), an axial groove (9) for the clamping blocks (8) to be clamped in along the axial direction is formed in the inner side wall of the embedded sleeve (20), a circumferential groove (10) for the clamping blocks (8) to be clamped in along the circumferential direction is formed in the bottom of the axial groove (9), an embedding groove (11) for the clamping blocks (8) to be clamped in is formed in one end, far away from the axial groove (9), of the circumferential, a fixing piece used for fixing the clamping block (8) in the embedding groove (11) is further arranged between the connecting cylinder (7) and the embedded sleeve (20), and a hanging ring (12) is arranged at one end, far away from the clamping block (8), of the connecting cylinder (7).
2. A prefabricated staircase according to claim 1, characterized in that: the fixing piece is a threaded sleeve (13) which is rotatably connected with the outer peripheral wall of one end, far away from the clamping block (8), of the connecting cylinder (7), two limiting rings (15) are arranged on the outer peripheral wall of the connecting cylinder (7) in a protruding mode, the two limiting rings (15) are respectively abutted to two ends of the threaded sleeve (13), and the outer diameter of each limiting ring (15) is smaller than that of the threaded sleeve (13); the outer wall of the threaded sleeve (13) is evenly provided with external threads, and the inner peripheral wall of the embedded sleeve (20) is close to one end of the axial groove (9) and is provided with internal threads matched with the external threads of the threaded sleeve (13).
3. A prefabricated staircase according to claim 1, characterized in that: and an annular convex edge (17) is arranged on the peripheral wall of the embedded sleeve (20).
4. A prefabricated staircase according to claim 3, characterized in that: the annular convex edges (17) are provided with a plurality of annular convex edges, and the intervals between the adjacent annular convex edges (17) are the same.
5. A prefabricated staircase according to claim 2, characterized in that: and a screwing block (14) which abuts against the upper end surface of the ladder end (4) when the clamping block (8) is clamped into the bottom of the axial groove (9) is arranged on the peripheral wall of one end, close to the hanging ring (12), of the threaded sleeve (13).
6. A prefabricated staircase according to claim 5, characterized in that: the screw block (14) is of a hexagonal prism structure.
7. A prefabricated staircase according to claim 2, characterized in that: the joint of the axial groove (9) and the circumferential groove (10) is in arc transition.
8. A prefabricated staircase according to claim 4, characterized in that: the annular convex edge (17) and the embedded sleeve (20) are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020644264.1U CN212153952U (en) | 2020-04-25 | 2020-04-25 | Prefabricated assembled stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020644264.1U CN212153952U (en) | 2020-04-25 | 2020-04-25 | Prefabricated assembled stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212153952U true CN212153952U (en) | 2020-12-15 |
Family
ID=73723865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020644264.1U Withdrawn - After Issue CN212153952U (en) | 2020-04-25 | 2020-04-25 | Prefabricated assembled stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212153952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434866A (en) * | 2022-10-24 | 2022-12-06 | 重庆大学 | Folding type assembled segmentation steel construction wind power tower cylinder |
-
2020
- 2020-04-25 CN CN202020644264.1U patent/CN212153952U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434866A (en) * | 2022-10-24 | 2022-12-06 | 重庆大学 | Folding type assembled segmentation steel construction wind power tower cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240419 Address after: 246500 Xuwu Group, Guangming Community, Fuyu Town, Susong County, Anqing City, Anhui Province Patentee after: Anhui Dingyao Construction Engineering Co.,Ltd. Country or region after: China Address before: No.326, Nanya street, Nanya Town, Jianou City, Nanping City, Fujian Province Patentee before: Fujian Zhicheng Construction Co.,Ltd. Country or region before: China |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201215 Effective date of abandoning: 20240515 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201215 Effective date of abandoning: 20240515 |