CN214329652U

CN214329652U - Prefabricated staircase

Info

Publication number: CN214329652U
Application number: CN202023196553.9U
Authority: CN
Inventors: 许洵辰; 朱立新; 王奇
Original assignee: Zhangjiagang Architectural Design And Research Institute Co ltd
Current assignee: Zhangjiagang Architectural Design And Research Institute Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-10-01
Anticipated expiration: 2030-12-26

Abstract

The utility model relates to a prefabricated staircase relates to the field of prefab, and it includes the stair body, the one end of stair body is equipped with the overlap joint platform, and the other end is connected with down the overlap joint platform, the overlap joint platform is opened down has the slot, goes up the overlap joint platform and rotates and be connected with the inserted bar, and the tip of inserted bar is equipped with the locking lever, and the inside wall of slot is opened there is the male spacing groove of confession locking lever. This application has the effect of strengthening the connection fastness between overlap joint platform and the lower overlap joint platform.

Description

Prefabricated staircase

Technical Field

The application relates to the field of prefabs, especially relates to a prefabricated staircase.

Background

The prefabricated concrete member is a widely used concrete product for accelerating construction and saving manpower at present, and the prefabricated staircase is widely used in the building construction process. At present, common prefabricated staircase utilizes the mould to pour the concrete, and when the construction, the prefabricated staircase that will pour is direct to be fixed at upper and lower floor's rest platform through the overlap joint with cast-in-place mode.

Aiming at the related technologies, the inventor thinks that although the construction process can be effectively accelerated by adopting a mode of overlapping and cast-in-place, the connection of the built upper and lower layers of rest platforms is not tight, and the connection firmness still needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the firm in connection nature between the prefabricated staircase, this application provides a prefabricated staircase.

The application provides a prefabricated staircase adopts following technical scheme:

the utility model provides a prefabricated staircase, includes the stair body, the one end of stair body is equipped with the overlap joint platform, and the other end is connected with lower overlap joint platform, the overlap joint platform is opened down has the slot, goes up the overlap joint platform and rotates and be connected with the inserted bar, and the tip of inserted bar is equipped with the locking lever, and the inside wall of slot is opened and is supplied locking lever male spacing groove.

Through adopting above-mentioned technical scheme, when installation prefabricated staircase, will go up the overlap joint bench overlap joint under on for inserted bar and locking lever insert the slot, rotate the inserted bar, make the locking lever insert in the spacing groove, again with concrete placement in slot and spacing groove, thereby can strengthen the firm in connection between overlap joint bench and the lower overlap joint bench.

Optionally, the upper lapping table is provided with a connecting groove, the upper lapping table is provided with a mounting plate located in the connecting groove, and the inserted link is rotatably connected with the mounting plate.

Through adopting above-mentioned technical scheme, go up the overlap joint platform and overlap joint platform overlap joint back down, spread groove and slot intercommunication to behind the concreting, can form the concrete piece of the type of falling T, with the help of the additional strengthening of inserted bar and locking lever simultaneously, can improve the firm in connection nature between overlap joint platform and the lower overlap joint platform to a certain extent.

Optionally, a reinforcing groove matched with the connecting groove is formed in the top surface of the upper lapping table.

Through adopting above-mentioned technical scheme, consolidate groove and spread groove intercommunication to behind the concreting, concrete in the reinforced groove, the concrete in the spread groove, the concrete in slot and the concrete of spacing inslot can form the concrete piece of I shape, have the effect of overlap joint platform and lower overlap joint platform on the cladding, thereby can strengthen the firm in connection nature between overlap joint platform and the lower overlap joint platform.

Optionally, the lower lap joint table is provided with a fixing rod, the upper lap joint table is provided with a through hole for inserting the fixing rod, the top surface of the upper lap joint table is provided with a fixing groove communicated with the through hole, and the end part of the fixing rod can be detachably provided with a fixing plate clamped into the fixing groove.

Through adopting above-mentioned technical scheme, the dead lever inserts the perforation after, installs the tip at the dead lever with the fixed plate for dead lever and fixed plate have the purpose of dragging the overlap joint platform, thereby behind concreting, can effectively strengthen the firm in connection nature between last overlap joint platform and the lower overlap joint platform.

Optionally, the fixed plate is opened there is the dead lever tip male locking groove of confession, the inside wall of locking groove is opened there is the holding tank, and the fixed plate is equipped with the gag lever post that is located the holding tank, and the lateral wall of dead lever is opened there is the draw-in groove that supplies the gag lever post card to go into, and the fixed plate is equipped with the driving piece that is used for driving the gag lever post card and goes into the draw-in groove.

Through adopting above-mentioned technical scheme, after the dead lever inserted the locking groove, utilize driving piece drive gag lever post to insert the draw-in groove to can reach the purpose of installation fixed plate.

Optionally, the driving piece is a compression spring located in the accommodating groove, one end of the compression spring is connected to the fixing plate, and the other end of the compression spring is connected to the limiting rod.

Through adopting above-mentioned technical scheme, utilize compression spring's elasticity to make the card that the gag lever post can be stable go into the draw-in groove.

Optionally, the end surface of the limiting rod is an inclined surface.

Through adopting above-mentioned technical scheme, when the dead lever inserted and locked the inslot, dead lever extrusion inclined plane for the gag lever post removes to the holding tank in, thereby is convenient for the dead lever to insert and lock the inslot.

Optionally, a reinforcing mesh is arranged in the stair body.

Through adopting above-mentioned technical scheme, utilize the intensity of reinforcing bar net reinforcing stair body.

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

1. the purpose of connecting the upper lapping table and the lower lapping table is achieved by the aid of the inserted rod and the locking rod, and meanwhile the purpose of strengthening the connection firmness between the upper lapping table and the lower lapping table is achieved by the aid of the strengthening groove, the connecting groove, the inserting groove and the limiting groove;

2. this application utilizes dead lever and fixed plate further to strengthen the connection fastness between overlap joint platform and the lower overlap joint platform.

Drawings

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

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

FIG. 3 is a schematic structural view of an upper and lower bridge of an embodiment of the present application.

Fig. 4 is a sectional view of a fixing plate according to an embodiment of the present application.

Description of reference numerals: 1. a stair body; 11. a reinforcing mesh; 2. an upper lapping table; 21. connecting grooves; 22. mounting a plate; 23. inserting a rod; 24. a locking lever; 25. a reinforcing groove; 26. perforating; 27. fixing grooves; 3. a lower lap joint table; 31. a slot; 32. a limiting groove; 33. fixing the rod; 331. a card slot; 4. a fixing plate; 41. a locking groove; 42. accommodating grooves; 43. a limiting rod; 44. compressing the spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses prefabricated staircase. Referring to fig. 1, prefabricated staircase includes the stair body 1 of pouring through the mould and forming, and the one end of stair body 1 is connected with overlap joint platform 2, and the other end is connected with lower overlap joint platform 3. The lower lapping table 3 is provided with a slot 31 along the length direction of the lower lapping table 3, the inner side wall of the slot 31 is provided with a limit groove 32, and the limit groove 32 and the slot 31 form a T shape.

Referring to fig. 2, a reinforcing mesh 11 is provided in the stair body 1 to reinforce the strength of the stair body 1. The upper lapping table 2 is provided with a connecting groove 21, the upper lapping table 2 is provided with a mounting plate 22 positioned in the connecting groove 21, and two ends of the mounting plate 22 are respectively inserted into the side walls of the connecting groove 21. An inserting rod 23 is inserted into the mounting plate 22, the inserting rod 23 is rotatably connected with the mounting plate 22 through a bearing, and a locking rod 24 is connected with the end of the inserting rod 23. After the inserted bar 23 and the locking bar 24 are inserted into the slot 31, the inserted bar 23 is rotated to rotate the locking bar 24 into the limiting groove 32, so that the upper and lower bridging tables 2 and 3 can be firmly connected after concrete is poured into the slot 31 and the limiting groove 32. The top surface of the upper lapping table 2 is provided with a reinforcing groove 25 communicated with the connecting groove 21 along the length direction of the upper lapping table 2, and after concrete is poured, the concrete in the reinforcing groove 25, the concrete in the connecting groove 21, the concrete in the slot 31 and the concrete in the limiting groove 32 can form an I-shaped concrete block, so that the purpose of firmly connecting the upper lapping table 2 and the lower lapping table 3 is further achieved.

Referring to fig. 3, the top surface of the lower lap joint table 3 is vertically provided with fixing rods 33 at four corners, the upper lap joint table 2 is provided with through holes 26 for inserting the fixing rods 33, and the end portions of the fixing rods 33 are detachably provided with fixing plates 4. The top surface of the upper joint table 2 is provided with a fixing groove 27 communicating with the through hole 26 along the length direction of the upper joint table 2, and the fixing plate 4 is positioned in the fixing groove 27. After concrete is poured into the fixing grooves 27 and the through holes 26, the purpose of connecting the upper and lower bridging tables 2 and 3 can be achieved.

Referring to fig. 3 and 4, the fixing plate 4 is provided with a locking groove 41 into which the fixing rod 33 is inserted, two receiving grooves 42 are formed in an inner sidewall of the locking groove 41, the fixing plate 4 is provided with a stopper rod 43 positioned in the receiving groove 42, and a locking groove 331 into which the stopper rod 43 is inserted is formed in an outer circumferential sidewall of the fixing rod 33. The fixing plate 4 is provided with a compression spring 44 located in the accommodating groove 42, one end of the compression spring 44 is connected to the limiting rod 43, the other end of the compression spring 44 is connected to the fixing plate 4, and the limiting rod 43 can be stably clamped into the clamping groove 331 by the elastic force of the compression spring 44. The end surface of the limiting rod 43 is an inclined surface, which is beneficial to the insertion of the limiting rod 43 into the locking groove 41.

The implementation principle of this application embodiment prefabricated staircase does: when the prefabricated staircase is installed, the upper lapping table 2 is lapped on the lower lapping table 3, the inserted link 23 and the locking rod 24 are inserted into the slot 31, and the inserted link 23 is rotated, so that the end part of the locking rod 24 is clamped into the limiting groove 32; the fixing rod 33 is inserted into the through hole 26, the fixing plate 4 is installed on the fixing rod 33, and then concrete is poured into the fixing groove 27, the through hole 26, the reinforcing groove 25, the connecting groove 21, the inserting groove 31, and the limiting groove 32, so that the firmness of connection between the upper and

lower landings

2 and 3 can be enhanced.

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

1. A prefabricated staircase, its characterized in that: including stair body (1), the one end of stair body (1) is equipped with overlap joint platform (2), and the other end is connected with overlap joint platform (3) down, overlap joint platform (3) are opened down and are had slot (31), go up overlap joint platform (2) and rotate and be connected with inserted bar (23), and the tip of inserted bar (23) is equipped with locking lever (24), and the inside wall of slot (31) is opened has and is supplied locking lever (24) male spacing groove (32).

2. A prefabricated staircase according to claim 1, characterized in that: go up overlap joint platform (2) and open and have spread groove (21), go up overlap joint platform (2) and be equipped with mounting panel (22) that are located spread groove (21), inserted bar (23) are connected with mounting panel (22) rotation.

3. A prefabricated staircase according to claim 2, characterized in that: the top surface of the upper lapping table (2) is provided with a reinforcing groove (25) which is matched with the connecting groove (21) for use.

4. A prefabricated staircase according to claim 1, characterized in that: the lower lapping table (3) is provided with a fixing rod (33), the upper lapping table (2) is provided with a through hole (26) for inserting the fixing rod (33), the top surface of the upper lapping table (2) is provided with a fixing groove (27) communicated with the through hole (26), and the end part of the fixing rod (33) is detachably provided with a fixing plate (4) clamped into the fixing groove (27).

5. A prefabricated staircase according to claim 4, characterized in that: fixed plate (4) are opened and are supplied dead lever (33) tip male locking groove (41), the inside wall that locks groove (41) is opened has holding tank (42), and fixed plate (4) are equipped with gag lever post (43) that are located holding tank (42), and the lateral wall of dead lever (33) is opened has draw-in groove (331) that supply gag lever post (43) card to go into, and fixed plate (4) are equipped with and are used for driving the driving piece that gag lever post (43) card goes into draw-in groove (331).

6. A prefabricated staircase according to claim 5, characterized in that: the driving piece is a compression spring (44) located in the accommodating groove (42), one end of the compression spring (44) is connected to the fixing plate (4), and the other end of the compression spring is connected to the limiting rod (43).

7. A prefabricated staircase according to claim 5, characterized in that: the end face of the limiting rod (43) is an inclined plane.

8. A prefabricated staircase according to claim 1, characterized in that: a reinforcing mesh (11) is arranged in the stair body (1).