CN214834201U - Assembled stair - Google Patents

Abstract

The application relates to an assembly type stair, which relates to the technical field of building engineering and comprises a downstairs, an upstairs and a connecting device, wherein mounting holes are respectively arranged on the downstairs and the upstairs, the downstairs and the upstairs are connected through the connecting device, the connecting device comprises a convex beam, a connecting mechanism and at least three embedded parts, the convex beam comprises a first supporting section, a second supporting section and a third supporting section which are sequentially connected, the embedded parts are respectively arranged on the first supporting section, the second supporting section and the third supporting section, the embedded parts are arranged along the height direction of the convex beam, the embedded part can penetrate through the mounting hole, the uppermost step of the lower stairs is arranged on the first supporting section, and the stair descending is fixed with the embedded part through the connecting mechanism, the step at the lowest part of the stair ascending is erected on the second supporting section, and the stair ascending is fixed with the embedded part through the connecting mechanism. The application has the advantages of simple installation and low construction cost.

Description

Assembled stair

Technical Field

The application relates to the technical field of constructional engineering, in particular to an assembly type stair.

Background

With the development of urban construction industry, the fabricated building is deeply popular in building engineering by virtue of the fact that the fabricated building can reduce building garbage and raise dust pollution and is convenient for realizing factory production of building components. When stair construction is carried out on a building, a prefabricated stair is often adopted to replace a traditional cast-in-place stair.

However, the prefabricated stairway has large span and overlarge self weight, so that the requirement on the configuration of hoisting equipment is high, and the construction cost and the risk of high-altitude operation can be increased.

In view of the above related technologies, the inventor believes that the conventional prefabricated staircase has an excessively large volume during construction, and needs to be provided with hoisting equipment with a large hoisting capacity, thereby increasing construction cost.

SUMMERY OF THE UTILITY MODEL

In order to facilitate installing prefabricated staircase, reduce the operating expenses, this application provides an assembled stair.

The application provides a fabricated stair adopts following technical scheme:

an assembled stair comprises a downstairs, an upstairs and a connecting device, wherein one ends of the downstairs and the upstairs, which are far away from each other, are respectively used for being lapped on a building, at least one mounting hole is respectively formed in the uppermost step of the downstairs and the lowermost step of the upstairs, the downstairs and the upstairs are connected through the connecting device, the connecting device comprises a convex beam, a connecting mechanism and at least three embedded parts, the convex beam comprises a first supporting section, a second supporting section and a third supporting section which are sequentially connected, the embedded parts are respectively arranged on the first supporting section, the second supporting section and the third supporting section, the embedded parts are arranged along the height direction of the convex beam and can penetrate through the mounting holes, the uppermost step of the downstairs is lapped on the first supporting section, and the downstairs are fixed with the embedded parts through the connecting mechanism, the step at the lowest part of the upstairs is erected on the second supporting section, and the upstairs are fixed with the embedded part through the connecting mechanism.

By adopting the technical scheme, during installation, the stair descending and the convex beam are lifted by the lifting equipment, then the uppermost step of the stair descending is placed above the first supporting section, the embedded part is aligned to the installation hole, then the lifting equipment is adjusted to descend, and the embedded part is inserted into the installation hole. When the step on the uppermost surface of the lower stair is erected on the upper surface of the first supporting section, the connecting mechanism is adjusted to realize the connection of the lower stair on the first supporting section. And then, the step at the lowest part of the upstairs is arranged on the second supporting section by utilizing the hoisting equipment, and then the connecting mechanism is adjusted to realize the connection between the upstairs and the second supporting section. Through the convex beam, the installation of going upstairs and downstairs can be supported, through coupling mechanism, the connectivity of going upstairs and downstairs on the convex beam can be strengthened, easy operation, the installation is easy, and then can reduce the live time of lifting by crane equipment, and then reduce the working costs, reduced the frequency of occurrence of on-the-spot incident.

Optionally, the connecting mechanism includes a connecting piece, a threaded section is arranged at one end of the embedded part extending out of the convex beam, and the connecting piece and the threaded section can be used in a matched manner.

Through adopting above-mentioned technical scheme, adjust the connecting piece, be connected connecting piece and screw thread section, strengthen going up stair and the connection performance of downstairs on the convex beam, improve the stability of going up stair and downstairs between. The connecting mechanism who sets up can further strengthen going up stair and going down the stair connection performance on the convex beam, and then improves the stability between going up stair and the stair down.

Optionally, a boss is arranged on the thread section, the bottom of the boss is connected with the convex beam, and fixing grooves capable of fixing the boss are formed in the bottom walls of the uppermost step of the downstair and the lowermost step of the upstairs.

Through adopting above-mentioned technical scheme, the boss of setting cooperates the use with the fixed slot, can go up stair and the motion of stair on the convex beam down spacing, and then can improve the stability of going up stair and stair down on the convex beam.

Optionally, at least one limiting groove is formed in the second supporting section, a first limiting block is embedded in the limiting groove, and the first limiting block is arranged on the downstairs.

Through adopting above-mentioned technical scheme, the in-process of stair under the installation utilizes to lift by crane equipment and aims at the spacing groove with first stopper, then will descend the stair to set up on the second supports the section, and then makes first stopper card establish at the spacing inslot. The limiting groove that sets up can carry on spacingly to the motion of first stopper, and then strengthens the joint strength between lower stair and the convex beam.

Optionally, the mounting hole is a waist-shaped hole.

By adopting the technical scheme, the mounting holes are arranged to be waist-shaped holes, the area of the embedded part entering the mounting holes can be increased, the connection between the stair climbing and stair descending and the embedded part is convenient to realize, the service time of lifting equipment is shortened, and the mounting efficiency is improved.

Optionally, a second limiting block is arranged at the bottom of the embedded part.

By adopting the technical scheme, the contact area between the embedded part and the convex beam can be increased by the second limiting block, the connection strength of the embedded part and the convex beam is improved, the phenomenon that the embedded part is separated from the convex beam in the use process can be reduced, and the use safety is improved.

Optionally, leveling layers are arranged on the horizontal planes of the convex beams.

Through adopting above-mentioned technical scheme, the screed-coat of setting can strengthen the convex beam and go up the stair and go down the floor between the planarization, and then improves the convex beam and go up the stair and go down the floor between the connectivity.

Optionally, at least three lifting holes are formed in the lower stair and the upper stair.

Through adopting above-mentioned technical scheme, the lifting eye that sets up is convenient for lift by crane equipment and is connected with going upstairs and downstairs, and then is convenient for constructor to go downstairs and go upstairs and lift by crane, and then improves the efficiency of installing upstairs and downstairs.

Optionally, the steps of the downstairs and the upstairs are provided with anti-slip strips, and the anti-slip strips are arranged along the length direction of the steps of the downstairs.

Through adopting above-mentioned technical scheme, the antislip strip of setting can increase constructor and go up the stair and descend the frictional force between the stair, reduces constructor and takes place to skid at the in-process of construction, and then takes place the construction accident.

Optionally, a first clamping piece is arranged on the uppermost step of the downstairs, a first positioning groove for inserting the first clamping piece is formed in the first supporting section, a first clamping groove is formed in the length direction of the first supporting section and communicated with the first positioning groove, a first limiting bolt is arranged in the first clamping groove and can fix the first clamping piece in the first positioning groove, and a second clamping piece with the same structure as the first clamping piece is arranged on the lowermost step of the upstairs.

Through adopting above-mentioned technical scheme, during the use, will descend the stair to hoist through hoisting equipment, then insert first clamping piece in the first locating slot, then adjust first spacing bolt, insert first spacing bolt in the first clamping slot, from this just accomplished the installation between stair and the first support section down. Similarly, the stair climbing is adjusted, the mounting between the stair climbing section and the second supporting section is realized, and the mounting between the stair climbing section, the stair descending section and the convex beam is realized.

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

1. the installation of the upstairs and downstairs can be supported through the convex beam, the connectivity of the upstairs and downstairs on the convex beam can be enhanced through the connecting mechanism, the operation is simple, the installation is easy, the service time of hoisting equipment can be shortened, the construction cost is reduced, and the occurrence frequency of field safety accidents is reduced;

2. the connecting mechanism who sets up can further strengthen going up stair and going down the stair connection performance on the convex beam, and then improves the stability between going up stair and the stair down.

Drawings

Fig. 1 is a schematic overall structure diagram of a fabricated staircase according to an embodiment of the present application.

Fig. 2 is a sectional view of an assembled staircase according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of an alternative perspective of a fabricated staircase according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Fig. 5 is a schematic view of the overall structure of a fabricated staircase according to embodiment 2 of the present application.

Fig. 6 is a sectional view of an assembled staircase according to embodiment 2 of the present application.

Fig. 7 is an enlarged schematic view of part B of fig. 6.

Reference numerals: 1. going down stairs; 11. mounting holes; 12. fixing grooves; 13. a first stopper; 14. lifting holes; 15. anti-slip strips; 16. a first clip member; 2. going upstairs; 21. a second clip member; 3. a connecting device; 31. a convex beam; 311. a first support section; 3111. a first positioning groove; 3112. a first clamping groove; 3113. a first limit bolt; 312. a second support section; 3121. a limiting groove; 3122. a second positioning groove; 3123. a second clamping groove; 3124. a second limit bolt; 313. leveling layer; 314. a third support section; 32. a connecting mechanism; 321. a connecting member; 3211. a threaded segment; 322. a boss; 33. embedding parts; 34. and a second limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example 1

The embodiment of the application discloses assembled stair. Referring to fig. 1, assembled stair include down stair 1, go up stair 2 and connecting device 3, and the one end that down stair 1 and go up stair 2 kept away from each other is the overlap joint respectively on the building, has all seted up two mounting holes 11 on the step of down stair 1 uppermost and the step of going up stair 2 bottommost, and mounting hole 11 sets up to waist shape hole. Go down and connect through connecting device 3 between stair 1 and the stair 2, still seted up four lifting eyes 14 on stair 1 and the stair 2 down, through lifting eye 14, be convenient for lift by crane equipment and will go up stair 2 and lower stair 1 and lift by crane. The steps of the downstairs 1 and the upstairs 2 are uniformly connected with anti-slip strips 15, and the anti-slip strips 15 are distributed along the length direction of the steps of the downstairs 1.

Referring to fig. 2, 3 and 4, in order to enhance the connection strength between the ascending stair 2, the descending stair 1 and the convex beam 31, the connecting device 3 includes the convex beam 31, the connecting mechanism 32 and a plurality of embedded parts 33, the convex beam 31 is horizontally disposed, and the convex beam 31 includes a first supporting section 311, a second supporting section 312 and a third supporting section 314 which are connected in sequence. The embedded parts 33 are respectively arranged on the first support section 311, the second support section 312 and the third support section 314, the embedded parts 33 are distributed along the height direction of the convex beam 31, and the embedded parts 33 can penetrate through the mounting holes 11. The uppermost step of the downstairs 1 is erected on the first support section 311, and the downstairs 1 are connected with the embedded parts 33 through the connecting mechanisms 32. The lowest step of the upstairs 2 is erected on the second support section 312, and the upstairs 2 are connected with the embedded part 33 through the connecting mechanism 32. The connecting mechanism 32 includes a connecting member 321, and the connecting member 321 is configured as a connecting nut in this embodiment. The bottom of the embedded part 33 is integrally connected with a second limiting block 34, a threaded section 3211 is arranged at one end of the embedded part 33 extending out of the convex beam 31, and the connecting nut and the threaded section 3211 can be matched for use. An organic whole is connected with boss 322 on screw thread section 3211, and boss 322 is the setting of round platform form, and boss 322's bottom and protruding roof beam 31 upper surface an organic whole are connected, all offer on the diapire of the uppermost step of stair 1 and the step of going upstairs 2 below and can carry out fixed slot 12 to boss 322, and all laid screed-coat 313 on protruding roof beam 31's the horizontal plane, through laying screed-coat 313, can improve and go upstairs 2 and the stability of stair 1 on protruding roof beam 31 down.

Referring to fig. 2, in order to enhance the stability between the downstairs 1 and the convex beam 31, at least one limiting groove 3121 is formed on the second support section 312, a first limiting block 13 is embedded in the limiting groove 3121, and the first limiting block 13 is integrally connected to the downstairs 1.

The implementation principle of the embodiment 1 of the application is as follows: during installation, the stair 1 and the convex beam 31 are lifted by the lifting device, then the uppermost step of the stair 1 is placed above the first support section 311, the first limit block 13 is aligned with the limit groove 3121, the embedded part 33 is aligned with the mounting hole 11, then the lifting device is adjusted to descend, the embedded part 33 is inserted into the mounting hole 11, and the first limit block 13 is inserted into the limit groove 3121. When the uppermost step of the downstairs 1 is erected on the upper surface of the first support segment 311, the connecting member 321 is adjusted to connect the connecting member 321 with the threaded segment 3211, so that the connection performance of the downstairs 1 on the convex beam 31 is enhanced, and the stability between the upstairs 2 and the downstairs 1 is improved. Then, the lowest step of the ascending stair 2 is erected on the second support section 312 by using the hoisting equipment, and then the connecting piece 321 is adjusted to realize the connection of the ascending stair 2 on the second support section 312.

Example 2

The embodiment of the application discloses assembled stair. Referring to fig. 5, 6 and 7, the installation of the stairways 1 and 2 on the wale 31 is facilitated. Be provided with first joint spare 16 on the step of stair 1 uppermost, first joint spare 16 an organic whole is connected on the bottom of step on 1 mouth of stair down, has seted up first constant head tank 3111 on the first support section 311, and first constant head tank 3111 can supply first joint spare 16 to insert. Seted up first joint groove 3112 on the length direction along first support section 311, first joint groove 3112 and first constant head tank 3111 intercommunication are provided with first spacing bolt 3113 in first joint groove 3112, and first spacing bolt 3113 runs through first support section 311 setting, and first spacing bolt 3113 can slide along first joint groove 3112. Insert first joint groove 3112 with first spacing bolt 3113, can fix first joint spare 16 in first constant head tank 3111. Go up and be provided with the second joint spare 21 the same with first joint spare 16 structure on the step of stair 2 bottommost, second joint spare 21 an organic whole is connected on the diapire of last stair 2 bottommost step, has seted up second constant head tank 3122 on the second support section 312, and second constant head tank 3122 can supply second joint spare 21 to insert. Seted up second joint groove 3123 on the length direction along second support section 312, second joint groove 3123 and second constant head tank 3122 intercommunication are provided with the spacing bolt 3124 of second in the second joint groove 3123, and the spacing bolt 3124 of second can slide along second joint groove 3123. Insert second limit bolt 3124 in second joint groove 3123, can fix second joint spare 21 in second constant head tank 3122.

The implementation principle of embodiment 2 of the present application is as follows: during the use, will descend stair 1 to hoist through lifting by crane equipment, then insert first joint spare 16 in first positioning groove 3111, then adjust first spacing bolt 3113, insert first spacing bolt 3113 in first joint groove 3112, just accomplished the installation between stair 1 and the first support section 311 down from this. Similarly, will go up stair 2 through lifting by crane equipment and lift, then insert second joint spare 21 in second constant head tank 3122, then adjust second limit bolt 3124, insert second limit bolt 3124 in second joint groove 3123, from this installation between stair 2 and the second support section 312 has just been accomplished, and then the installation between stair 1 and the stair 2 and the convex beam 31 of going down is realized, and the operation is simple, the installation is easy, and then reduce the construction cost, reduce the frequency that the incident takes place.

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 (10)

1. An assembled stair which is characterized in that: the stair climbing device comprises a downstairs (1), an upstairs (2) and a connecting device (3), wherein one ends, far away from each other, of the downstairs (1) and the upstairs (2) are respectively used for being lapped on a building, at least one mounting hole (11) is formed in each of the uppermost steps of the downstairs (1) and the lowermost steps of the upstairs (2), the downstairs (1) and the upstairs (2) are connected through the connecting device (3), the connecting device (3) comprises a convex beam (31), a connecting mechanism (32) and at least three embedded parts (33), the convex beam (31) comprises a first supporting section (311), a second supporting section (312) and a third supporting section (314) which are sequentially connected, the embedded parts (33) are respectively arranged on the first supporting section (311), the second supporting section (312) and the third supporting section (314), and the embedded parts (33) are arranged along the height direction of the convex beam (31), the embedded part (33) can penetrate through the installation hole (11) and is arranged, the uppermost step of the downstairs (1) is erected on the first supporting section (311), the downstairs (1) are fixed with the embedded part (33) through the connecting mechanism (32), the lowermost step of the upstairs (2) is erected on the second supporting section (312), and the upstairs (2) are fixed with the embedded part (33) through the connecting mechanism (32).

2. The fabricated staircase of claim 1, wherein: the connecting mechanism (32) comprises a connecting piece (321), a threaded section (3211) is arranged at one end, extending out of the convex beam (31), of the embedded part (33), and the connecting piece (321) is matched with the threaded section (3211) for use.

3. A fabricated staircase as defined in claim 2, wherein: the stair climbing device is characterized in that a boss (322) is arranged on the threaded section (3211), the bottom of the boss (322) is connected with the convex beam (31), and fixing grooves (12) capable of fixing the boss (322) are formed in the bottom walls of the uppermost step of the downstairs (1) and the lowermost step of the upstairs (2).

4. The fabricated staircase of claim 1, wherein: the second support section (312) is provided with at least one limiting groove (3121), a first limiting block (13) is embedded in the limiting groove (3121), and the first limiting block (13) is arranged on the downstairs (1).

5. The fabricated staircase of claim 1, wherein: the mounting hole (11) is a waist-shaped hole.

6. The fabricated staircase of claim 1, wherein: and a second limiting block (34) is arranged at the bottom of the embedded part (33).

7. The fabricated staircase of claim 1, wherein: leveling layers (313) are arranged on the horizontal planes of the convex beams (31).

8. The fabricated staircase of claim 1, wherein: at least three lifting holes (14) are formed in the lower stair (1) and the upper stair (2).

9. The fabricated staircase of claim 1, wherein: the stair climbing device is characterized in that anti-slip strips (15) are arranged on steps of the downstairs (1) and the upstairs (2), and the anti-slip strips (15) are arranged along the length direction of the steps of the downstairs (1).

10. The fabricated staircase of claim 1, wherein: be provided with first joint spare (16) on stair (1) the uppermost step down, seted up on first support section (311) and supplied first joint groove (3111) of first joint spare (16) male, followed first joint groove (3112) have been seted up on the length direction of first support section (311), first joint groove (3112) and first locating groove (3111) intercommunication, be provided with first spacing bolt (3113) in first joint groove (3112), first spacing bolt (3113) can with first joint spare (16) are fixed in first locating groove (3111), go up be provided with on stair (2) the lowermost step with second joint spare (21) that first joint spare (16) structure is the same.

Images