CN215594681U - Prefabricated staircase convenient to concatenation - Google Patents

Abstract

The utility model relates to a prefabricated staircase convenient to concatenation relates to the field of prefabricated staircase, and it includes upper mounting plate, lower landing and stair subassembly, and the upper mounting plate is used for being connected with upper floor, and the lower landing is used for being connected with lower floor, and the stair subassembly is connected between upper mounting plate and lower landing, and the stair subassembly includes stair, transition stair and lower stair, and stair and upper mounting plate fixed connection go up the stair and go up the landing fixed connection, lower stair and lower landing fixed connection, transition stair and the equal joint of stair, lower stair. The application has the effect of reducing the use of concrete binder.

Description

Prefabricated staircase convenient to concatenation

Technical Field

The utility model belongs to the technical field of prefabricated staircase and specifically relates to a prefabricated staircase convenient to concatenation is related to.

Background

With the continuous development and upgrade of house building technology, more and more construction units begin to adopt the concrete member prefabrication process. The splicing of prefabricated staircases is the most common in concrete prefabrication projects.

Prefabricated staircase includes upper mounting plate, lower landing and stair body, and the stair body is last to be fixed to be provided with a plurality of step, and the top and the upper mounting plate of stair body pass through concrete bonding agent fixed connection, and the bottom and the lower landing of stair body also pass through concrete bonding agent fixed connection, and the upper mounting plate is used for being connected with upper ground, and the lower landing is used for being connected with suction layer ground. During the use, transport upper mounting plate, lower platform and stair body to building site, with stair body and upper mounting plate, the equal fixed connection of lower platform, again with upper mounting plate and upper ground fixed connection, lower platform and lower ground fixed connection accomplish the installation.

In view of the above-mentioned related technologies, the inventor believes that the concrete adhesive is volatile, and the building has peculiar smell after the prefabricated staircase is installed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the use of concrete binder, this application provides a prefabricated staircase convenient to concatenation.

The application provides a pair of prefabricated staircase convenient to concatenation adopts following technical scheme:

the utility model provides a prefabricated staircase convenient to concatenation, includes upper ledge and lower platform and stair subassembly, the stair subassembly includes stair, transition stair and lower stair, and stair and upper ledge fixed connection go up the stair and go up stair and lower platform fixed connection, lower stair and the equal joint of stair, lower stair.

Through adopting above-mentioned technical scheme, during the installation, transport upper mounting plate, lower platform and stair subassembly to the building site, with upper mounting plate and last stair fixed connection, then will descend platform and stair fixed connection down, adopt the mode of joint to be connected transition stair and last stair, stair down at last, reduce the use of concrete bonding agent.

Optionally, the bottom end of the upstairs is fixedly connected with a first clamping strip, the top end of the transition stairway is fixedly connected with a second clamping strip matched with the first clamping strip, and the first clamping strip and the second clamping strip are tightly clamped; the bottom fixedly connected with third card strip of transition stair, the top fixedly connected with of going down the stair with the third card strip cooperation fourth card strip that uses, third card strip and the inseparable joint of fourth card strip.

Through adopting above-mentioned technical scheme, during the installation, first card strip and the inseparable joint of second card strip for go up the inseparable joint of stair and transition stair, third card strip and the inseparable joint of fourth card strip make transition stair and the inseparable joint of downstair, reduce the use of concrete bonding agent.

Optionally, the second clamping strip is matched with the third clamping strip in size, and the two adjacent transition staircases are clamped with the third clamping strip through the second clamping strip.

Through adopting above-mentioned technical scheme, when the length of stair was not enough, can increase transition stair between transition stair and the last stair or transition stair and the lower stair, adjacent transition stair pass through the inseparable joint of second card strip and third card strip, reduce the use of concrete bonding agent.

Optionally, the first locking column is penetrated through the tops of the first clamping strip, the second clamping strip and the transition stair, and the second locking column is penetrated through the tops of the third clamping strip, the fourth clamping strip and the lower stair.

By adopting the technical scheme, after the first clamping strip and the second clamping strip are clamped, the first locking column penetrates through the clamping part, and meanwhile, the first locking column penetrates through the top of the transition stair, so that the transition stair and the upstairs are more stably connected; after third card strip and fourth card strip joint, wear to establish second locking post at the joint position, second locking post runs through the top of stair down simultaneously for transition stair are more firm with being connected of stair down.

Optionally, a third locking column is arranged on the top end of the second clamping strip, the corresponding third clamping strip and the transition stair of the adjacent stairs in a penetrating mode.

Through adopting above-mentioned technical scheme, with the second card strip of adjacent transition stair with the third card strip joint back that corresponds, wear to establish third locking post at the joint position for the connection between the adjacent transition stair is more firm.

Optionally, a stair plate is arranged between the upper platform and the lower platform, is located at the bottom of the upper stairs, the lower stairs and the transition stairs, and is fixedly connected with the upper platform, the lower platform, the upper stairs, the lower stairs and the transition stairs.

Through adopting above-mentioned technical scheme, stair board fixed connection goes up the bottom of stair, transition stair and lower stair to with the equal fixed connection of upper ledge and lower platform, play the supporting role to going up stair, transition stair and lower stair.

Optionally, the two sides of the upstairs, the downstairs and the transition stairs are provided with reserved holes for installing stair handrails.

Through adopting above-mentioned technical scheme, the installation of prefabricated stair is accomplished the back, when needing to install the stair railing, can directly install through the preformed hole, avoids punching on the prefabricated stair of having installed the completion, causes the influence to the fastness of prefabricated stair.

Optionally, steps are processed on the upstairs, the downstairs and the transition stairs, and anti-slip grooves are formed in the steps.

Through adopting above-mentioned technical scheme, increased the frictional force of step, prefabricated staircase installation is accomplished the back, reduces the possibility that the personnel slipped and fall when walking about.

In summary, the present application includes at least one of the following beneficial technical effects:

the transition stairs are connected with the upper stairs and the lower stairs in a clamping manner, and the adjacent transition stairs are connected in a clamping manner, so that the use of concrete adhesive is reduced;

the transition stairs are clamped with the upper stairs and then penetrate through the first locking column, the transition stairs are clamped with the lower stairs and then penetrate through the second locking column, and the adjacent transition stairs are clamped and then penetrate through the third locking column, so that all clamped parts are connected more stably;

the anti-slip grooves are formed in the steps on the surfaces of the upstairs, the transition stairs and the downstairs, so that the friction force on the surfaces of the steps is increased, and the personnel are prevented from slipping when walking.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural view of a stair tread according to an embodiment of the present application.

Description of reference numerals: 1. an upper platform; 11. a first vertical portion; 12. a first horizontal portion; 2. a lower platform; 21. a second vertical portion; 22. a second horizontal portion; 3. a stair assembly; 31. going upstairs; 311. a step; 3111. an anti-slip groove; 312. a first connection block; 3121. a first lap joint portion; 3122. a connecting bolt; 313. a first clip strip; 314. a first card slot; 315. reserving a hole; 32. going down stairs; 321. a second connecting block; 3211. fastening a bolt; 322. a fourth clamping strip; 323. a fourth card slot; 324. a second locking post; 33. a transition staircase; 331. a second card strip; 332. a second card slot; 333. a third clamping strip; 334. a third card slot; 335. a first locking post; 336. a third locking post; 4. a stair tread; 41. a first bolt; 42. a second bolt; 43. and a third bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses prefabricated staircase convenient to concatenation. Referring to fig. 1, a prefabricated staircase convenient to concatenation is including being used for connecting upper landing 1 with the upper floor, being used for being connected lower landing 2 and stair subassembly 3 with the lower floor, stair subassembly 3 is located between upper landing 1 and lower landing 2, stair subassembly 3 includes upstairs 31, downstairs 32 and transition stair 33, upstairs 31 and upper landing 1 fixed connection, downstairs 32 and lower landing 2 fixed connection, transition stair 33 is connected between upstairs 31 and downstairs 32.

Referring to fig. 1, the upper platform 1 is horizontally arranged, the cross section of the upper platform 1 is rectangular, the longitudinal section of the upper platform 1 is L-shaped, the upper platform 1 includes a first vertical portion 11 and a first horizontal portion 12 which are fixedly connected, the first horizontal portion 12 is located on one side of the first vertical portion 11 close to the upstairs 31, the length directions of the first horizontal portion 12 and the first vertical portion 11 are the same, the length of the first horizontal portion 12 and the length of the first vertical portion 11 are equal, the bottom surface of the first horizontal portion 12 and the bottom surface of the first vertical portion 11 are located on the same plane, and the height of the first horizontal portion 12 is smaller than the height of the first vertical portion 11.

Referring to fig. 1 and 2, the length direction of the ascending stair 31 is the same as the length direction of the first horizontal portion 12, the length of the ascending stair 31 is the same as the length of the first horizontal portion 12, a plurality of steps 311 are processed on the top surface of the ascending stair 31, the length direction of the steps 311 is the same as the length direction of the ascending stair 31, the length of the steps 311 is the same as the length of the ascending stair 31, a plurality of anti-slip grooves 3111 are formed in the steps 311, the anti-slip grooves 3111 penetrate through two ends of the length direction of the ascending stair 31, a plurality of reserved holes 315 for installing handrails are formed in two ends of the length direction of the ascending stair 31, and the bottom surface of the ascending stair 31 inclines towards the direction close to the lower platform 2.

Referring to fig. 1, a first connecting block 312 is fixedly connected to one side of the top of the upper staircase 31 close to the upper platform 1, the length of the first connecting block 312 is equal to the length of the upper staircase 31, a first lap portion 3121 extends from the top end of the first connecting block 312 in a direction close to the upper platform 1, the length of the first lap portion 3121 is equal to the length of the upper staircase 31, the width of the first lap portion 3121 is equal to the width of the first horizontal portion 12, the bottom surface of the first lap portion 3121 abuts against the top surface of the first horizontal portion 12, one side of the first lap portion 3121 adjacent to the upper platform 1 abuts against the first vertical portion 11, a connecting bolt 3122 is disposed on the first lap portion 3121, and the first lap portion 3121 is connected to the first horizontal portion 12 through the connecting bolt 3122.

Referring to fig. 1, the lower platform 2 is horizontally arranged, the cross section of the lower platform 2 is rectangular, the longitudinal section of the lower platform 2 is L-shaped, the lower platform 2 comprises a second vertical portion 21 and a second horizontal portion 22 which are fixedly connected, the second horizontal portion 22 is positioned on one side of the second vertical portion 21 close to the lower stairs 32, the length of the second horizontal portion 22 and the length of the second vertical portion 21 are equal to the length of the first horizontal portion 12, the bottom surface of the second horizontal portion 22 and the bottom surface of the second vertical portion 21 are positioned in the same plane, and the height of the second horizontal portion 22 is smaller than the height of the second vertical portion 21.

Referring to fig. 1 and 2, the length direction of the downstairs 32 is the same as the length direction of the second horizontal portion 22, the length of the downstairs 32 is equal to the length of the second horizontal portion 22, a plurality of steps 311 are also processed on the top surface of the downstairs 32, a plurality of anti-slip grooves 3111 are also formed on the steps 311, a plurality of reserved holes 315 for installing handrails are also formed at two ends of the downstairs 32 in the length direction, the bottom surface of the downstairs 32 inclines towards the direction close to the lower platform 2, the bottom surface of the downstairs 32 and the bottom surface of the upstairs 31 are located in the same plane, a second connecting block 321 is fixedly connected to one side of the bottom of the downstairs 32 close to the lower platform 2, the length of the second connecting block 321 is equal to the length of the upstairs 31, the bottom surface of the second connecting block 321 is abutted to the top surface of the second horizontal portion 22, one side of the second connecting block 321 close to the lower platform 2 and the second vertical portion 21, a fastening bolt 3211 is arranged on the second connecting block 321, the second connecting block 321 is connected to the second horizontal portion 22 by a fastening bolt 3211.

During the use, transport upper mounting plate 1, lower platform 2 and stair subassembly 3 to the building site, will pass through stair 33 and upper mounting plate 1, lower platform 2 joint, then through first bolt 41 with upper mounting plate 1 and upstairs 31 fixed connection, rethread second bolt 42 with lower platform 2 and downstairs 32 fixed connection, accomplish the concatenation of prefabricated stair.

Referring to fig. 1 and 2, a first clamping strip 313 is fixedly connected to one side of the bottom of the upstairs 31 far away from the upper platform 1, the length of the first clamping strip 313 is equal to that of the upstairs 31, the longitudinal section of the first clamping strip 313 is L-shaped, one side of the first clamping strip 313 far away from the upstairs 31 is bent upwards, and a first clamping groove 314 is formed between the first clamping strip 313 and the upstairs 31; one side of the upper stair 31 close to the lower platform 2 is connected with a transition stair 33, the length of the transition stair 33 is equal to that of the upper stair 31, a plurality of steps 311 are also processed on the top surface of the transition stair 33, a plurality of anti-skidding grooves 3111 are also formed on the steps 311, a plurality of reserved holes 315 for installing handrails are also formed in two ends of the transition stair 33 in the length direction, the bottom surface of the transition stair 33 inclines towards the direction close to the lower platform 2, and the bottom surface of the transition stair 33 and the bottom surface of the upper stair 31 are located in the same plane; one side fixedly connected with second card strip 331 that the top of transition stair 33 is close to stairs 31 goes up, the length of second card strip 331 equals the length of transition stair 33, the one side that second card strip 331 is kept away from stairs 33 bends downwards to and form second draw-in groove 332 between the stairs 32 that go down, the size of first card strip 313 and the size looks adaptation of second card strip 331, the one side that first card strip 313 is kept away from stairs 31 closely pegs graft in second draw-in groove 332, the one side that second card strip 331 is kept away from stairs 33 closely pegs graft in first draw-in groove 314.

Referring to fig. 1, two first locking posts 335 are simultaneously penetrated through the top of the first clamping strip 313, the second clamping strip 331 and the transitional stair 33, the first locking posts 335 are horizontally arranged and perpendicular to the length direction of the ascending stair 31, and the two first locking posts 335 are uniformly distributed along the length direction of the ascending stair 31.

During the use, closely the joint in second draw-in groove 332 with first card strip 313, the closely joint in first draw-in groove 314 of second card strip 331 simultaneously for go up stair 31 and transition stair 33 joint, then wear to establish simultaneously at the top of first card strip 313, second card strip 331 and transition stair 33 with two first locking posts 335, make the connection of going up stair 31 and transition stair 33 more firm.

Referring to fig. 1, one side of the lower stair 32, which is far away from the step 311, inclines towards the direction close to the lower platform 2, and is located in the same plane as one side of the upper stair 31, which is far away from the step 311, one side of the top of the lower stair 32, which is far away from the lower platform 2, is fixedly connected with a fourth clamping strip 322, the length of the fourth clamping strip 322 is equal to the length of the lower stair 32, the longitudinal section of the fourth clamping strip 322 is L-shaped, one side of the fourth clamping strip 322, which is far away from the lower stair 32, is bent downwards, and a fourth clamping groove 323 is formed between the fourth clamping strip and the lower stair 32; one side of the bottom of the transition stair 33 close to the lower stair 32 is fixedly connected with a third clamping strip 333, the length of the third clamping strip 333 is equal to that of the transition stair 33, one side of the third clamping strip 333 far away from the transition stair 33 is bent upwards, and a third clamping groove 334 is formed between the third clamping strip 333 and the transition stair 33, the size of the third clamping strip 333 is matched with that of the fourth clamping strip 322, one side of the third clamping strip 333 far away from the transition stair 33 is tightly inserted into the fourth clamping groove 323, and one side of the fourth clamping strip 322 far away from the lower stair 32 is tightly inserted into the third clamping groove 334.

Referring to fig. 1, two second locking columns 324 are simultaneously penetrated through the third clamping strip 333, the fourth clamping strip 322 and the top of the lower stair 32, the second locking columns 324 are horizontally arranged and perpendicular to the length direction of the lower stair 32, and the two first locking columns 335 are uniformly distributed along the length direction of the lower stair 32.

During the use, closely the joint in fourth draw-in groove 323 with third card strip 333, the closely joint in third draw-in groove 334 of fourth card strip 322 simultaneously for go up stair 31 and transition stair 33 joint, then wear to establish simultaneously at the top of third card strip 333, fourth card strip 322 and downstairs 32 two first locking posts 335, make downstairs 32 and transition stair 33's connection more firm.

Referring to fig. 1, a plurality of transition stairs 33 may be provided, and in this embodiment, two transition stairs 33 are provided, the size of the second locking strip 331 is matched with the size of the third locking strip 333, one side of the third locking strip 333 close to the transition stairs 33 of the ascending stair 31, which is close to the ascending stair 31, is closely inserted into the second locking groove 332 of the transition stairs 33 close to the descending stair 32, one side of the second locking strip 331 close to the transition stairs 33 of the descending stair 32, which is close to the descending stair 32, is closely inserted into the third locking groove 334 of the transition stairs 33 close to the ascending stair 31, the third locking columns 336 are simultaneously penetrated through the third locking strip 333 of the transition stairs 33 close to the ascending stair 31, the second locking strip 331 and the top of the transition stairs 33 close to the descending stair 32, the third locking columns 336 are horizontally arranged and perpendicular to the length direction of the transition stairs 33, and the two third locking columns 336 are uniformly distributed along the length direction of the transition stairs 33. When the stair is used, if the length of the stair is not enough, the transition stair 33 can be added between the ascending stair 31 and the transition stair 33, and the number of steps 311 of the stair is increased, so that the length and the height of the stair are increased.

Referring to fig. 3, stair board 4 is located between upper ledge 1 and the lower ledge 2, wear to be equipped with the first bolt 41 of a plurality of on stair board 4, a plurality of second bolt 42 and a plurality of third bolt 43, the top of stair board 4 is connected through first bolt 41 with upper ledge 1, the bottom of stair board 4 is to the direction slope that is close to lower ledge 2, and pass through second bolt 42 with lower ledge 2 and be connected, go up stair 31, one side that stair 32 and transition stair 33 kept away from step 311 all laminates with stair board 4, stair board 4 and upper ledge 1, lower ledge 2, go up stair 31, lower stair 32, transition stair 33 all passes through third bolt 43 and connects.

The implementation principle of prefabricated staircase convenient to concatenation in this application embodiment is: during installation, the ascending stair 31 and the transition stair 33 are clamped through the first clamping strip 313 and the second clamping strip 331, the first locking column 335 is arranged at the tops of the first clamping strip 313, the second clamping strip 331 and the transition stair 33 in a penetrating mode, the transition stair 33 and the descending stair 32 are clamped through the third clamping strip 333 and the fourth clamping strip 322, the second locking column 324 is arranged at the tops of the third clamping strip 333, the fourth clamping strip 322 and the descending stair 32 in a penetrating mode, the ascending stair 31, the transition stair 33 and the descending stair 32 are fixed, the ascending stair 31 is fixedly connected with the upper platform 1, the descending stair 32 is fixedly connected with the lower platform 2, and finally the stair plates 4 are fixedly connected with the upper platform 1, the lower platform 2, the ascending stair 31, the descending stair 32 and the transition stair 33.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a prefabricated staircase convenient to concatenation, includes upper mounting plate (1) and lower platform (2), upper mounting plate (1) are used for being connected with upper floor, and lower platform (2) are used for being connected its characterized in that with lower floor: still include stair subassembly (3), stair subassembly (3) are including going up stair (31), transition stair (33) and lower stair (32), go up stair (31) and last platform (1) fixed connection, lower stair (32) and lower platform (2) fixed connection, transition stair (33) and last stair (31), lower stair (32) all joint.

2. The prefabricated staircase convenient for splicing according to claim 1, characterized in that: the bottom end of the upstairs (31) is fixedly connected with a first clamping strip (313), the top end of the transition stairs (33) is fixedly connected with a second clamping strip (331) matched with the first clamping strip (313), and the first clamping strip (313) is clamped with the second clamping strip (331); the bottom end of the transition stair (33) is fixedly connected with a third clamping strip (333), the top end of the lower stair (32) is fixedly connected with a fourth clamping strip (322) matched with the third clamping strip (333) for use, and the third clamping strip (333) is clamped with the fourth clamping strip (322).

3. The prefabricated staircase convenient for splicing according to claim 2, characterized in that: the second clamping strip (331) is matched with the third clamping strip (333) in size, and the two adjacent transition staircases (33) are clamped with the third clamping strip (333) through the second clamping strip (331).

4. The prefabricated staircase convenient for splicing according to claim 2, characterized in that: the top ends of the first clamping strip (313), the second clamping strip (331) and the transition stair (33) are simultaneously provided with a first locking column (335) in a penetrating manner, and the top ends of the third clamping strip (333), the fourth clamping strip (322) and the lower stair (32) are simultaneously provided with a second locking column (324) in a penetrating manner.

5. The prefabricated staircase convenient to splice of claim 3, wherein: and a third locking column (336) is simultaneously penetrated through the top ends of the second clamping strip (331), the corresponding third clamping strip (333) and the transition stair (33) which are adjacent to the transition stair (33).

6. The prefabricated staircase convenient for splicing according to claim 1, characterized in that: and a stair board (4) is arranged between the upper platform (1) and the lower platform (2), and the stair board (4) is positioned at the bottoms of the upper stairs (31), the lower stairs (32) and the transition stairs (33) and is fixedly connected with the upper platform (1), the lower platform (2), the upper stairs (31), the lower stairs (32) and the transition stairs (33).

7. The prefabricated staircase convenient for splicing according to claim 1, characterized in that: the two sides of the ascending stair (31), the descending stair (32) and the transition stair (33) are provided with reserved holes (315) for installing stair handrails.

8. The prefabricated staircase convenient for splicing according to claim 1, characterized in that: go up stair (31), go down stair (32) and transition stair (33) and go up all to process step (311), all seted up on step (311) anti-skidding groove (3111).

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