CN215368570U - Prefabricated staircase and connection structure of the staircase and floor slab - Google Patents

Abstract

The utility model provides a prefabricated staircase and a connecting structure of the staircase and a floor slab. The prefabricated staircase and the connecting structure of the staircase and the floor slab comprise a staircase; the floor slab is abutted against two ends of the stair respectively; the adjusting structure is fixed on the top surface of the floor slab and comprises a first bottom plate, an adjusting box, a first rotating handle, a second rotating handle, a connecting plate, a first gear, a first adjusting strip, a first spring, a second adjusting strip and a second spring; the fixing structures are fixed on the top surfaces of the two ends of the stair and comprise a second bottom plate, a fixing box, a third rotating handle, a connecting rod, a nut and a second gear; and the clamping structure is arranged in the fixed box. The prefabricated staircase and the connecting structure of the staircase and the floor slab have the advantages of convenience and rapidness in fine adjustment.

Description

Prefabricated staircase and connection structure of the staircase and floor slab

Technical Field

The utility model relates to the technical field of prefabricated floor slab installation, in particular to a prefabricated staircase and a connecting structure of the staircase and a floor slab.

Background

The stair is one of very important structural members in a residential building structure and mainly comprises stair boards and stair platforms, and the stair is divided into a cast-in-place type stair and a prefabricated type stair, wherein the prefabricated stair adopts a manufacturing mode of firstly manufacturing and then transporting to a construction site for installation, and has the advantages of simple construction, low cost, short construction period and the like. Prefabricated staircase generally adopts hoist and mount machinery to hoist, then cooperate the workman to install together, and need leave certain space between prefabricated staircase both sides and the wall in the installation, make things convenient for the stair adjustment, but because prefabricated staircase is of a large quality, be difficult to remove, the workman is difficult to accurate control adjustment distance during the fine setting, can increase workman's amount of labour, bring inconvenience for workman's work, even cooperate hoist and mount machinery to adjust, also can occupy the plenty of time, influence the installation of other staircases, thereby reduce work efficiency, the extension engineering progress.

Therefore, there is a need to provide a new prefabricated staircase and a connecting structure of the staircase and a floor slab to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a prefabricated staircase capable of being conveniently and quickly finely adjusted and a connecting structure of the staircase and a floor slab.

The utility model provides a prefabricated staircase and a connecting structure of the staircase and a floor slab, comprising: a staircase; the floor slab is abutted against two ends of the stair respectively; the adjusting structure is fixed on the top surface of the floor slab and comprises a first bottom plate, an adjusting box, a first rotating handle, a second rotating handle, a connecting plate, a first gear, a first adjusting strip, a first spring, a second adjusting strip and a second spring, the first bottom plate is fixed on the top surface of the floor slab, the adjusting box is fixed on the top surface of the first bottom plate, the first rotating handle and the second rotating handle are respectively and rotatably connected inside the adjusting box, one end of the connecting plate is slidably connected inside the adjusting box, the first gear is respectively fixed in the middle of the first rotating handle and the middle of the second rotating handle, the first adjusting strip is slidably connected at one end of the connecting plate, one end of the first spring is fixed at one end of the connecting plate, the other end of the first spring is fixed on the side wall of the first adjusting strip, and the second adjusting strip is slidably connected inside the connecting plate, one end of the second spring is fixed inside the connecting plate, and the other end of the second spring is fixed on the side wall of the second adjusting strip; the fixing structure is fixed on the top surfaces of two ends of the stair and comprises a second bottom plate, a fixing box, a third rotating handle, connecting rods, a nut and a second gear, the second bottom plate is fixed on the top surfaces of the two ends of the stair, the bottom surface of the fixing box is abutted against the top surface of the second bottom plate, the fixing box is fixed at the other end of the connecting plate, the third rotating handle is rotatably connected inside the fixing box, the two connecting rods are symmetrically fixed on the top surface of the second bottom plate, the two connecting rods respectively penetrate through the fixing box, the nut is in threaded connection with the connecting rods, and the second gear is fixed in the middle of the third rotating handle; and the clamping structure is arranged in the fixed box.

Preferably, the first adjusting strip and the second adjusting strip are perpendicular to each other, the first adjusting strip is in meshed connection with the first gear in the middle of the first rotating handle, and the second adjusting strip is in meshed connection with the first gear in the middle of the second rotating handle.

Preferably, the fixing structure further comprises a third spring, a limiting groove and a limiting gear, the third spring is sleeved on the side wall of the first rotating handle, the side wall of the second rotating handle and the side wall of the third rotating handle, the three limiting grooves are respectively fixed in the adjusting box and the fixing box, the three limiting gears are respectively fixed at the bottom ends of the first rotating handle, the second rotating handle and the third rotating handle, and the limiting gear is meshed with the limiting grooves.

Preferably, the lateral wall equidistance of connecting plate is fixed with a plurality of universal wheel, just universal wheel sliding connection in adjust the inside of box.

Preferably, the clamping structure comprises a first clamping block, a first rack, a second clamping block, a third rack, a transmission wheel and a fourth spring, the first clamping block and the second clamping block are symmetrically and slidably connected inside the fixed box, and the opposite surfaces of the first clamping block and the second clamping block are pressed against the side wall of the connecting rod, the first rack is fixed on the side wall of the first clamping block, the first rack is meshed with the second gear, the second rack is fixed on the other side wall of the first clamping block, the third rack is fixed on the side wall of the second clamping block, the driving wheel is rotationally connected inside the fixed box, and the transmission wheel is respectively meshed with the second rack and the third rack, one end of the fourth spring is fixed in the fixed box, and the other end of the fourth spring is fixed on the side wall of the second clamping block.

Compared with the prior art, the prefabricated staircase and the connecting structure of the staircase and the floor slab have the following beneficial effects:

the utility model provides a prefabricated staircase and a connection structure of the staircase and a floor slab.

Drawings

Fig. 1 is a schematic structural view of a prefabricated staircase and a connection structure of the staircase and a floor slab according to a preferred embodiment of the present invention;

FIG. 2 is a schematic internal cross-sectional view of the adjustment structure and the fixation structure shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a cross-sectional schematic view of the clamping mechanism shown in FIG. 2;

fig. 5 is an enlarged schematic view of the portion B shown in fig. 4.

Reference numbers in the figures: 1. stair, 2, floor, 3, regulation structure, 31, first bottom plate, 32, regulation box, 33, first turning handle, 34, second turning handle, 35, connecting plate, 36, first gear, 37, first regulation strip, 38, first spring, 39, second regulation strip, 39a, second spring, 4, fixing bolt, 5, fixing structure, 51, second bottom plate, 52, fixing box, 53, third turning handle, 54, connecting rod, 55, nut, 56, second gear, 57, third spring, 58, limiting groove, 59, limiting gear, 6, universal wheel, 7, clamping structure, 71, first clamping block, 72, first rack, 73, second rack, 74, second clamping block, 75, third rack, 76, transmission wheel, 77, fourth spring.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, wherein fig. 1 is a schematic structural view illustrating a prefabricated staircase and a connection structure between the staircase and a floor slab according to a preferred embodiment of the present invention; FIG. 2 is a schematic internal cross-sectional view of the adjustment structure and the fixation structure shown in FIG. 1; FIG. 3 is an enlarged view of portion A of FIG. 2; FIG. 4 is a cross-sectional schematic view of the clamping mechanism shown in FIG. 2; fig. 5 is an enlarged schematic view of the portion B shown in fig. 4. Prefabricated stair and this stair and floor connection structure include: a staircase 1; the floor slabs 2 are abutted to two ends of the stair 1 respectively; the adjusting structure 3, the adjusting structure 3 is fixed on the top surface of the floor slab 2, the adjusting structure 3 includes a first bottom plate 31, an adjusting box 32, a first rotating handle 33, a second rotating handle 34, a connecting plate 35, a first gear 36, a first adjusting bar 37, a first spring 38, a second adjusting bar 39 and a second spring 39a, the first bottom plate 31 is fixed on the top surface of the floor slab 2, the adjusting box 32 is fixed on the top surface of the first bottom plate 31, the first rotating handle 33 and the second rotating handle 34 are respectively connected inside the adjusting box 32 in a rotating manner, one end of the connecting plate 35 is connected inside the adjusting box 32 in a sliding manner, the first gear 36 is fixed on the middle portions of the first rotating handle 33 and the second rotating handle 34, the first adjusting bar 37 is connected on one end of the connecting plate 35 in a sliding manner, one end of the first spring 38 is fixed on one end of the connecting plate 35, the other end is fixed on the side wall of the first adjusting bar 37, the second adjusting bar 39 is connected inside the connecting plate 35 in a sliding manner, one end of the second spring 39a is fixed inside the connecting plate 35, and the other end is fixed on the side wall of the second adjusting bar 39; the fixed structure 5 is fixed on top surfaces of two ends of the staircase 1, the fixed structure 5 comprises a second bottom plate 51, a fixed box 52, a third rotating handle 53, a connecting rod 54, a nut 55 and a second gear 56, the second bottom plate 51 is fixed on top surfaces of two ends of the staircase 1, the bottom surface of the fixed box 52 is abutted against the top surface of the second bottom plate 51, the fixed box 52 is fixed on the other end of the connecting plate 35, the third rotating handle 53 is rotatably connected inside the fixed box 52, the two connecting rods 54 are symmetrically fixed on the top surface of the second bottom plate 51, the two connecting rods 54 respectively penetrate through the fixed box 52, the nut 55 is in threaded connection with the connecting rods 54, and the second gear 56 is fixed in the middle of the third rotating handle 53; and the clamping structure 7, wherein the clamping structure 7 is arranged inside the fixed box 52.

In a specific implementation process, as shown in fig. 2, the first adjusting bar 37 and the second adjusting bar 39 are perpendicular to each other, the first adjusting bar 37 is in meshed connection with the first gear 36 in the middle of the first rotating handle 33, and the second adjusting bar 39 is in meshed connection with the first gear 36 in the middle of the second rotating handle 34, so that when the first rotating handle 33 drives the first gear 36 to rotate, the first adjusting bar 37 can be driven to move transversely, and thus the connecting plate 35 is driven to move left and right (according to the direction of fig. 2 in the specification, the same applies below); when the second rotating handle 34 drives the first gear 36 to rotate, the second adjusting bar 39 can be driven to move longitudinally, so that the connecting plate 35 is driven to move up and down.

In a specific implementation process, as shown in fig. 4 and 5, the fixing structure 5 further includes a third spring 57, a limiting groove 58 and a limiting gear 59, the third spring 57 is sleeved on a side wall of the first stem 33, a side wall of the second stem 34 and a side wall of the third stem 53, the three limiting grooves 58 are respectively fixed inside the adjusting box 32 and inside the fixing box 52, the three limiting gears 59 are respectively fixed at bottom ends of the first stem 33, the second stem 34 and the third stem 53, the limiting gear 59 is in meshing connection with the limiting groove 58, the third spring 57, the limiting groove 58 and the limiting gear 59 are arranged so that the limiting gear 59 can be pulled out from the limiting groove 58 only when the first stem 33, the second stem 34 or the third stem 53 is pulled upwards, so that the first stem 33 or the second stem 34 can rotate; when the first rotating handle 33 or the second rotating handle 34 is released, the resetting of the third spring 57 can make the first rotating handle 33 or the second rotating handle 34 slide downwards, so that the limiting gear 59 enters the limiting groove 58, and the rotation of the first rotating handle 33 or the second rotating handle 34 is limited.

In a specific implementation process, as shown in fig. 2, a plurality of universal wheels 6 are fixed on the side wall of the connecting plate 35 at equal intervals, the universal wheels 6 are slidably connected inside the adjusting box 32, and the universal wheels 6 can realize that the connecting plate 35 smoothly moves up, down, left and right in the adjusting box 32.

In a specific implementation process, as shown in fig. 2 and 3, the clamping structure 7 includes a first clamping block 71, a first rack 72, a second rack 73, a second clamping block 74, a third rack 75, a transmission wheel 76 and a fourth spring 77, the first clamping block 71 and the second clamping block 74 are symmetrically and slidably connected to the inside of the fixed box 52, opposite surfaces of the first clamping block 71 and the second clamping block 74 abut against the side wall of the connecting rod 54, the first rack 72 is fixed to the side wall of the first clamping block 71, the first rack 72 is engaged with the second gear 56, the second rack 73 is fixed to the other side wall of the first clamping block 71, the third rack 75 is fixed to the side wall of the second clamping block 74, the transmission wheel 76 is rotatably connected to the inside of the fixed box 52, and the transmission wheel 76 is engaged with the second rack 73 and the third rack 75 respectively, one end of the fourth spring 77 is fixed inside the fixing box 52, and the other end is fixed on the side wall of the second clamping block 74, and the fastening structure 7 is provided to fix the fixing box 52 and the connecting rod 54 more firmly, so that the fixing box 52 can play a role in connecting the staircase 1 and the floor slab 2.

The working principle of the prefabricated staircase and the connecting structure of the staircase and the floor slab provided by the utility model is as follows:

firstly, fixing the first bottom plate 31 on the top surface of the floor slab 2 by the fixing bolts 4, fixing the second bottom plate 51 on both ends of the top surface of the stair 1, then hoisting the stair 1 by a hoisting machine, after the stair 1 is hoisted to a specified position, sleeving the fixing box 52 on the two connecting rods 54, fixing the fixing box 52 by the nuts 55, then lifting the third rotating handle 53 upwards, so that the third rotating handle 53 drives the limiting gear 59 to slide out of the limiting groove 58 in the fixing box 52, then rotating the third rotating handle 53, the second gear 56 rotates together, thereby driving the two first racks 72 to move, the first racks 72 drive the two first clamping blocks 71 to move, and the movement of the first clamping blocks 71 drives the second racks 73 to move, the second rack 73 drives the transmission wheel 76 to rotate, the transmission wheel 76 drives the third rack 75 to move, the third rack 75 drives the second clamping block 74 to move, meanwhile, the fourth spring 77 extends, the first clamping block 71 and the second clamping block 74 approach each other to clamp the connecting rod 54, the connection between the fixing box 32 and the connecting rod 54 is strengthened, and therefore the connection stability of the stair 1 is improved; after the fixing box 52 is fixed, according to the actual situation, the first rotating handle 33 and the second rotating handle 34 are respectively pulled upwards, the first rotating handle 33 or the second rotating handle 34 drives the limiting gear 59 to slide out of the limiting groove 58, the third spring 57 contracts, then the first rotating handle 33 or the second rotating handle 34 is rotated, the first rotating handle 33 or the second rotating handle 34 drives the first gear 36 to rotate, the second gear 36 drives the first adjusting strip 37 to move left and right or drives the second adjusting strip 39 to move up and down, the first adjusting strip 37 and the second adjusting strip 39 enable the connecting plate 35 to move in the adjusting box 32, the universal wheel 6 on the side wall of the connecting plate 35 rotates in the adjusting box 32, and finally the other end of the connecting plate 35 is spliced with the fixing boxes 52 at the two ends of the stair 1, at this time, the first rotating handle 33 or the second rotating handle 34 is released, under the pushing of the third spring 57, the first rotating handle 33 or the second rotating handle 34 is lowered, and the limiting gear 59 is driven into the limiting groove 58, the limiting gear 59 is in meshed connection with the limiting groove 58, so that the first rotating handle 33 or the second rotating handle 34 cannot rotate, and the position of the connecting plate 35 is fixed; then, the two are fixedly connected together through the fixing bolts 4, so that the stair 1 and the floor slab 2 are connected together through the connection between the fixing box 52 and the second bottom plate 51 and the connection between the connecting plate 35 and the fixing box 52; at this moment, hoisting machinery just can dismantle, carries out the hoist and mount of other stairs. When fine adjustment is performed, the connecting plate 35 can be moved in the above manner, so that the connecting box 35 can move up and down, left and right in all directions, the connecting plate 35 drives the fixing box 52 to move, and the fixing box 52 is fixed with the stair 1, so that the stair 1 can move together with the movement of the fixing box 52, and fine adjustment of the stair 1 is performed to reach a specified position.

Compared with the prior art, the prefabricated staircase and the connecting structure of the staircase and the floor slab have the following beneficial effects:

the utility model provides a prefabricated staircase and a connection structure of the staircase and a floor slab, wherein the connection plate 35 can move up, down, left and right in all directions in the adjusting box 32 by respectively rotating the first rotating handle 33 or the second rotating handle 34, and the connection plate 35 is fixedly connected with the fixed boxes 52 fixed at the two ends of the staircase 1, so that the staircase 1 is driven to move up, down, left and right, and the fine adjustment of the staircase 1 is further realized.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. The utility model provides a prefabricated staircase and this stair and floor connection structure which characterized in that includes:

a staircase (1);

the floor (2) is abutted against two ends of the stair (1) respectively;

adjusting structure (3), adjusting structure (3) is fixed in the top surface of floor (2), adjusting structure (3) includes first bottom plate (31), adjust box (32), first turning handle (33), second turning handle (34), connecting plate (35), first gear (36), first regulation strip (37), first spring (38), second regulation strip (39) and second spring (39a), first bottom plate (31) is fixed in the top surface of floor (2), adjust box (32) is fixed in the top surface of first bottom plate (31), first turning handle (33) and second turning handle (34) rotate respectively and connect in the inside of adjusting box (32), the one end sliding connection of connecting plate (35) in the inside of adjusting box (32), first gear (36) is fixed in the middle part of first turning handle (33) and second turning handle (34) respectively, the first adjusting bar (37) is slidably connected to one end of the connecting plate (35), one end of the first spring (38) is fixed to one end of the connecting plate (35), the other end of the first spring is fixed to the side wall of the first adjusting bar (37), the second adjusting bar (39) is slidably connected to the inside of the connecting plate (35), one end of the second spring (39a) is fixed to the inside of the connecting plate (35), and the other end of the second spring is fixed to the side wall of the second adjusting bar (39);

fixed knot constructs (5), fixed knot constructs (5) is fixed in the both ends top surface of stair (1), fixed knot constructs (5) including second bottom plate (51), fixed box (52), third turning handle (53), connecting rod (54), nut (55) and second gear (56), second bottom plate (51) are fixed in the both ends top surface of stair (1), the bottom surface of fixed box (52) is contradicted the top surface of second bottom plate (51), just fixed box (52) are fixed in the other end of connecting plate (35), third turning handle (53) rotate connect in the inside of fixed box (52), two connecting rod (54) symmetry are fixed in the top surface of second bottom plate (51), and two connecting rod (54) run through respectively fixed box (52), nut (55) with connecting rod (54) threaded connection, the second gear (56) is fixed in the middle of the third rotating handle (53);

a clamping structure (7), wherein the clamping structure (7) is arranged inside the fixed box (52).

2. Prefabricated staircase and its connection to floor slab, according to claim 1, characterized in that said first and second adjustment strips (37, 39) are perpendicular to each other, and said first adjustment strip (37) is in engagement with said first gear wheel (36) in the middle of said first turn handle (33), and said second adjustment strip (39) is in engagement with said first gear wheel (36) in the middle of said second turn handle (34).

3. The prefabricated staircase and the connection structure of the staircase and the floor slab as claimed in claim 2, wherein said fixing structure (5) further comprises a third spring (57), a limiting groove (58) and a limiting gear (59), said third spring (57) is sleeved on the side wall of said first turning handle (33), the side wall of said second turning handle (34) and the side wall of said third turning handle (53), three limiting grooves (58) are respectively fixed inside said adjusting box (32) and said fixing box (52), three limiting gears (59) are respectively fixed on the bottom ends of said first turning handle (33), said second turning handle (34) and said third turning handle (53), and said limiting gears (59) are engaged with said limiting groove (58).

4. Prefabricated staircase and its connection to the floor according to claim 1, characterised in that the lateral walls of the connection plate (35) are fixed with a number of universal wheels (6) at equal distances, and that the universal wheels (6) are slidingly connected to the inside of the adjustment box (32).

5. The prefabricated staircase and the connection structure of the staircase and the floor slab as claimed in claim 1, wherein said clamping structure (7) comprises a first clamping block (71), a first rack (72), a second rack (73), a second clamping block (74), a third rack (75), a transmission wheel (76) and a fourth spring (77), said first clamping block (71) and said second clamping block (74) are symmetrically and slidably connected to the inside of said fixing box (52), opposite faces of said first clamping block (71) and said second clamping block (74) are abutted against a side wall of said connection rod (54), said first rack (72) is fixed to a side wall of said first clamping block (71), said first rack (72) is engaged with said second gear (56), said second rack (73) is fixed to the other side wall of said first clamping block (71), and said third rack (75) is fixed to a side wall of said second clamping block (74), the transmission wheel (76) is rotatably connected to the inside of the fixed box (52), the transmission wheel (76) is respectively meshed with the second rack (73) and the third rack (75) and connected with the inside of the fixed box (52), one end of the fourth spring (77) is fixed to the inside of the fixed box (52), and the other end of the fourth spring is fixed to the side wall of the second clamping block (74).

Images