CN211923283U - Prefabricated scissors ladder structure - Google Patents
Prefabricated scissors ladder structure Download PDFInfo
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- CN211923283U CN211923283U CN201922242772.7U CN201922242772U CN211923283U CN 211923283 U CN211923283 U CN 211923283U CN 201922242772 U CN201922242772 U CN 201922242772U CN 211923283 U CN211923283 U CN 211923283U
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- mounting hole
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Abstract
The utility model discloses a prefabricated scissors ladder structure aims at solving building prefabricated staircase heavy in weight, and the hoist and mount is with high costs, and prefabricated staircase is connected the not good not enough of reliability with the ladder roof beam moreover. The utility model comprises a stair with an X-shaped structure formed by two crossed arrangements, wherein the stair comprises an upper stair beam, a middle stair beam, a lower prefabricated ladder and an upper prefabricated ladder, the upper prefabricated ladder is erected between the upper stair beam and the middle stair beam, and the lower prefabricated ladder is erected between the middle stair beam and the lower stair beam; the lower ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with a lower mounting hole, and the upper ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with an upper mounting hole; the lower fixing column is embedded in the lower ladder beam, the upper fixing column is embedded in the upper ladder beam, the upper fixing column and the lower fixing column are embedded in the middle ladder beam, a hole is formed in the upper portion of the lower mounting hole, the lower fixing column is inserted in the lower mounting hole, the upper end of the lower fixing column is connected with the nut and the positioning washer, the positioning washer is supported on the bottom surface of the hole, the nut is abutted to the positioning washer, and mortar is poured in the hole.
Description
Technical Field
The utility model relates to a stair, more specifically say, it relates to a prefabricated scissors ladder structure.
Background
Building stair structure generally adopts direct pouring or prefabricated plate to set up, and direct pouring needs to set up the reserve time for the concrete, can the extension time limit for a project, and the prefabricated plate sets up the time limit for a project short, but to the great scissors ladder of specification and dead weight, prefabricated stair weight is big, and the hoist and mount cost is high, and prefabricated stair and ladder beam connection reliability are not good moreover.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes building prefabricated staircase is heavy, and the hoist and mount cost is high, and prefabricated staircase is connected the not good not enough of reliability with the ladder roof beam moreover, provides a prefabricated scissors ladder structure, and prefabricated staircase light in weight is favorable to reducing the hoist and mount cost, and prefabricated staircase is connected the good reliability with the ladder roof beam moreover.
In order to solve the technical problem, the utility model discloses a following technical scheme: a prefabricated scissor ladder structure comprises two staircases which are arranged in a crossed mode to form an X-shaped structure, wherein each staircase comprises an upper ladder beam, a middle ladder beam, a lower prefabricated ladder and an upper prefabricated ladder; the lower ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with a lower mounting hole, and the upper ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with an upper mounting hole; the lower fixing column is embedded in the lower ladder beam, the upper fixing column is embedded in the upper ladder beam, the upper fixing column and the lower fixing column are embedded in the middle ladder beam, a hole is formed in the upper portion of the lower mounting hole, the lower fixing column is inserted in the lower mounting hole, the upper end of the lower fixing column is connected with a nut and a positioning gasket, the positioning gasket is supported on the bottom surface of the hole, the nut is abutted to the positioning gasket, mortar is poured in the hole, the upper fixing column is inserted in the upper mounting hole and is grouted in the upper mounting hole to form a positioning block, and the mortar is.
The first-layer stair is divided into an upper prefabricated ladder and a lower prefabricated ladder, so that the hoisting weight is reduced, and the hoisting cost is favorably reduced. Go up between ladder roof beam and the last prefabricated ladder and reach between ladder roof beam and the lower prefabricated ladder all through pre-buried last fixed column and last mounting hole connection location, connect convenient and reliable. The lower ladder beam and the lower prefabricated ladder and the middle ladder beam and the upper prefabricated ladder are connected and positioned through the lower embedded fixing column and the lower mounting hole, and are locked through the positioning washers and the nuts, so that the connection is reliable. The prefabricated staircase of this kind of prefabricated scissors ladder structure light in weight is favorable to reducing the hoist and mount cost, and prefabricated staircase is connected good reliability with the ladder beam moreover.
As preferred, go up the ladder roof beam and be equipped with the screed-coat with last prefabricated ladder upper end overlap joint position, down be equipped with the screed-coat with prefabricated ladder lower extreme overlap joint position down on the ladder roof beam, on the well ladder roof beam with prefabricated ladder upper end overlap joint position down and with last prefabricated ladder lower extreme overlap joint position all be equipped with the screed-coat. The arrangement of the leveling layer is convenient for mastering the balance in the installation process of the prefabricated staircase.
Preferably, vibration damping sealing layers are arranged between the lower end face of the lower prefabricated ladder and the side face of the lower ladder beam, between the upper end face of the lower prefabricated ladder and the side face of the middle ladder beam and between the upper end face of the upper prefabricated ladder and the side face of the upper ladder beam, and each vibration damping sealing layer comprises a polyphenyl filling section, a PE rod and a weather-resistant adhesive section which are sequentially arranged from bottom to top; and a PE rod is arranged between the lower end of the upper prefabricated ladder and the side surface of the middle ladder beam, and the PE rod is connected with weather-resistant glue in a sealing manner. The vibration reduction sealing layer has the functions of vibration reduction and sealing, is favorable for reducing vibration, and is waterproof and sealed.
As preferred, the upper end of the middle ladder beam is provided with an upper convex block extending upwards from the prefabricated ladder, the lower end of the middle ladder beam is provided with a lower convex block extending downwards from the prefabricated ladder, the lower end of the upper prefabricated ladder is lapped on the upper convex block, and the upper end of the lower prefabricated ladder is lapped on the lower convex block. The upper convex block is convenient for erecting the upper prefabricated ladder, and the lower convex block is convenient for erecting the lower prefabricated ladder.
As preferred, go up the terraced roof beam and all pre-buried screw thread regulation post that has the T shape in the terraced roof beam down, go up terraced roof beam and down terraced roof beam lateral wall and all be equipped with the screw thread regulation post corresponding position and dodge the groove, screw thread regulation post path end stretches out and dodges the groove, screw thread regulation post path part threaded connection has the telescope tube, the installation butt lid is rotated to the telescope tube outer end, the butt lid butt that corresponds with last terraced roof beam is on last prefabricated ladder upper end lateral wall, the butt lid butt that corresponds with lower terraced roof beam is on prefabricated ladder lower extreme lateral wall down.
At last prefabricated ladder and the in-process of setting up of prefabricated ladder down, through rotating the position that telescopic sleeve axial displacement butt lid to prefabricated ladder lateral wall and the distance of last ladder roof beam lateral wall are gone up in the adjustment, or prefabricated ladder lateral wall and the distance of ladder roof beam lateral wall down are adjusted down, thereby realize setting up the fine setting of process position, the accurate location of being convenient for makes the position of setting up more accurate reliable.
Preferably, the large-diameter end face of the thread adjusting column is provided with a plurality of pre-embedded positioning rods. The arrangement of the pre-buried locating rod increases the bearing capacity of the pre-buried screw thread adjusting column.
Compared with the prior art, the beneficial effects of the utility model are that: the prefabricated staircase of prefabricated scissors ladder structure light in weight is favorable to reducing the hoist and mount cost, and prefabricated staircase is connected good reliability with the ladder beam moreover.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic view of the connection structure of the middle ladder beam of the present invention;
FIG. 4 is a schematic view of the connection structure of the upper ladder beam and the upper prefabricated ladder of the present invention;
FIG. 5 is a schematic view of the connection structure of the lower ladder beam and the lower prefabricated ladder of the present invention;
in the figure: 1. go up the terraced roof beam, 2, well terraced roof beam, 3, lower terraced roof beam, 4, prefabricated ladder down, 5, go up prefabricated ladder, 6, lower mounting hole, 7, go up the mounting hole, 8, lower fixed column, 9, go up the fixed column, 10, reaming, 11, nut, 12, locating washer, 13, mortar, 14, locating piece, 15, screed-coat, 16, polyphenyl filling section, 17, PE stick, 18, weather resistant glue section, 19, last lug, 20, lower lug, 21, screw thread adjusting column, 22, dodge the groove, 23, the expansion sleeve, 24, butt lid, 25, pre-buried locating lever.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example (b): a prefabricated scissors ladder structure (see attached drawings 1-5) comprises two staircases which are arranged in a crossed mode to form an X-shaped structure, each staircase comprises an upper ladder beam 1, a middle ladder beam 2, a lower ladder beam 3, a lower prefabricated ladder 4 and an upper prefabricated ladder 5, and the upper ladder beam, the middle ladder beam and the lower ladder beam are directly poured on a building. The upper ladder beam and the lower ladder beam are both provided with L-shaped erection surfaces, and the middle ladder beam is provided with two L-shaped erection surfaces. The upper prefabricated ladder is erected between the upper ladder beam and the middle ladder beam, and the lower prefabricated ladder is erected between the middle ladder beam and the lower ladder beam; the lower ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with a lower mounting hole 6, and the upper ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with an upper mounting hole 7; the lower fixing column 8 is embedded in the lower ladder beam, the upper fixing column 9 is embedded in the upper ladder beam, the upper fixing column and the lower fixing column are embedded in the middle ladder beam, a hole expanding hole 10 is formed in the upper portion of the lower mounting hole, the lower fixing column is inserted in the lower mounting hole, the upper end of the lower fixing column is connected with a nut 11 and a positioning washer 12, the positioning washer is supported on the bottom surface of the hole expanding hole, the nut is abutted to the positioning washer, mortar 13 is poured in the hole expanding hole, the upper fixing column is inserted in the upper mounting hole and is grouted in the upper mounting hole to form a positioning. The upper fixing column on the upper ladder beam and the lower fixing column on the lower ladder beam are both in L-shaped structures. Go up the ladder roof beam on with prefabricated ladder upper end overlap joint position be equipped with screed-coat 15, down the ladder roof beam on with prefabricated ladder lower extreme overlap joint position down be equipped with the screed-coat, on the well ladder roof beam with prefabricated ladder upper end overlap joint position down and with last prefabricated ladder lower extreme overlap joint position all be equipped with the screed-coat. The leveling layer is arranged on the erection surface. Vibration damping sealing layers are arranged between the lower end face of the lower prefabricated ladder and the side face of the lower ladder beam, between the upper end face of the lower prefabricated ladder and the side face of the middle ladder beam and between the upper end face of the upper prefabricated ladder and the side face of the upper ladder beam, and each vibration damping sealing layer comprises a polyphenyl filling section 16, a PE rod 17 and a weather-resistant adhesive section 18 which are sequentially arranged from bottom to top; and a PE rod is arranged between the lower end of the upper prefabricated ladder and the side surface of the middle ladder beam, and the PE rod is connected with weather-resistant glue in a sealing manner. The upper end of the middle ladder beam is provided with an upper convex block 19 extending upwards from the prefabricated ladder, the lower end of the middle ladder beam is provided with a lower convex block 20 extending downwards from the prefabricated ladder, the lower end of the upper prefabricated ladder is lapped on the upper convex block, and the upper end of the lower prefabricated ladder is lapped on the lower convex block. Go up the terraced roof beam and all pre-buried screw thread regulation post 21 that has T shape in the terraced roof beam down, go up terraced roof beam and down terraced roof beam lateral wall and all be equipped with the screw thread regulation post corresponding position and dodge groove 22, the screw thread regulation post path end stretches out and dodges the groove, screw thread regulation post path part threaded connection has telescope tube 23, the installation butt lid 24 is rotated to the telescope tube outer end, the butt that corresponds with last terraced roof beam covers the butt on last prefabricated ladder upper end lateral wall, the butt that corresponds with the terraced roof beam down covers the butt on prefabricated ladder lower extreme lateral wall down. The large-diameter end face of the thread adjusting column is provided with a plurality of pre-buried positioning rods 25. The avoiding groove is arranged below the PE rod, and polyphenyl in the avoiding groove is filled.
The first-layer stair is divided into an upper prefabricated ladder and a lower prefabricated ladder, so that the hoisting weight is reduced, and the hoisting cost is favorably reduced. Go up between ladder roof beam and the last prefabricated ladder and reach between ladder roof beam and the lower prefabricated ladder all through pre-buried last fixed column and last mounting hole connection location, connect convenient and reliable. The lower ladder beam and the lower prefabricated ladder and the middle ladder beam and the upper prefabricated ladder are connected and positioned through the lower embedded fixing column and the lower mounting hole, and are locked through the positioning washers and the nuts, so that the connection is reliable. The prefabricated staircase of this kind of prefabricated scissors ladder structure light in weight is favorable to reducing the hoist and mount cost, and prefabricated staircase is connected good reliability with the ladder beam moreover, and it is convenient that the fine setting is set up to prefabricated staircase.
The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A prefabricated scissor ladder structure is characterized by comprising two ladders which are arranged in a crossed manner to form an X-shaped structure, wherein each ladder comprises an upper ladder beam, a middle ladder beam, a lower prefabricated ladder and an upper prefabricated ladder; the lower ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with a lower mounting hole, and the upper ends of the lower prefabricated ladder and the upper prefabricated ladder are respectively provided with an upper mounting hole; the lower fixing column is embedded in the lower ladder beam, the upper fixing column is embedded in the upper ladder beam, the upper fixing column and the lower fixing column are embedded in the middle ladder beam, a hole is formed in the upper portion of the lower mounting hole, the lower fixing column is inserted in the lower mounting hole, the upper end of the lower fixing column is connected with a nut and a positioning gasket, the positioning gasket is supported on the bottom surface of the hole, the nut is abutted to the positioning gasket, mortar is poured in the hole, the upper fixing column is inserted in the upper mounting hole and is grouted in the upper mounting hole to form a positioning block, and the mortar is.
2. The structure of a prefabricated scissor ladder according to claim 1, wherein a leveling layer is arranged on the upper ladder beam at the position where the upper end of the upper prefabricated ladder is lapped, a leveling layer is arranged on the lower ladder beam at the position where the lower end of the lower prefabricated ladder is lapped, and leveling layers are arranged on the middle ladder beam at the position where the upper end of the lower prefabricated ladder is lapped and at the position where the lower end of the upper prefabricated ladder is lapped.
3. The prefabricated scissor ladder structure as claimed in claim 1, wherein vibration damping sealing layers are respectively arranged between the lower end surface of the lower prefabricated ladder and the side surface of the lower ladder beam, between the upper end surface of the lower prefabricated ladder and the side surface of the middle ladder beam and between the upper end surface of the upper prefabricated ladder and the side surface of the upper ladder beam, and each vibration damping sealing layer comprises a polyphenyl filling section, a PE rod and a weather-resistant adhesive section which are sequentially arranged from bottom to top; and a PE rod is arranged between the lower end of the upper prefabricated ladder and the side surface of the middle ladder beam, and the PE rod is connected with weather-resistant glue in a sealing manner.
4. The prefabricated scissor ladder structure of claim 1, wherein the upper end of the middle ladder beam is provided with an upper projection extending upwards from the prefabricated ladder, the lower end of the middle ladder beam is provided with a lower projection extending downwards from the prefabricated ladder, the lower end of the upper prefabricated ladder is lapped on the upper projection, and the upper end of the lower prefabricated ladder is lapped on the lower projection.
5. The prefabricated scissor ladder structure as claimed in any one of claims 1 to 4, wherein T-shaped threaded adjusting posts are embedded in the upper ladder beam and the lower ladder beam, the positions of the side walls of the upper ladder beam and the lower ladder beam corresponding to the threaded adjusting posts are provided with avoiding grooves, the small-diameter ends of the threaded adjusting posts extend out of the avoiding grooves, the small-diameter portions of the threaded adjusting posts are in threaded connection with telescopic sleeves, the outer ends of the telescopic sleeves are rotatably provided with abutting covers, the abutting covers corresponding to the upper ladder beam abut against the side wall of the upper end of the upper prefabricated ladder, and the abutting covers corresponding to the lower ladder beam abut against the side wall of the lower end of the lower prefabricated ladder.
6. The prefabricated scissor ladder structure as claimed in claim 5, wherein the large diameter end of the threaded adjusting column is provided with a plurality of pre-embedded positioning rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242772.7U CN211923283U (en) | 2019-12-12 | 2019-12-12 | Prefabricated scissors ladder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242772.7U CN211923283U (en) | 2019-12-12 | 2019-12-12 | Prefabricated scissors ladder structure |
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| Publication Number | Publication Date |
|---|---|
| CN211923283U true CN211923283U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922242772.7U Active CN211923283U (en) | 2019-12-12 | 2019-12-12 | Prefabricated scissors ladder structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404235A (en) * | 2021-06-17 | 2021-09-17 | 广东翔顺建筑工程有限公司 | Simply-supported two-span continuous prefabricated assembled scissors stair of segmentation earlier |
| CN113565276A (en) * | 2021-06-21 | 2021-10-29 | 中甄住工建设科技(湖北)有限公司 | Weight-reducing prefabricated scissor ladder |
-
2019
- 2019-12-12 CN CN201922242772.7U patent/CN211923283U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404235A (en) * | 2021-06-17 | 2021-09-17 | 广东翔顺建筑工程有限公司 | Simply-supported two-span continuous prefabricated assembled scissors stair of segmentation earlier |
| CN113565276A (en) * | 2021-06-21 | 2021-10-29 | 中甄住工建设科技(湖北)有限公司 | Weight-reducing prefabricated scissor ladder |
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