CN209742262U - Prefabricated reinforced concrete combined stair - Google Patents

Abstract

The utility model discloses a prefabricated reinforced concrete combination stair, including the terraced body and reinforcing plate, terraced body and reinforcing plate set up, and the top outer wall equidistance of reinforcing plate is provided with the rectangle fixture block, the other end and the terraced body joint of rectangle fixture block, the guard plate has all been laid to the outer wall of the terraced body, and one side outer wall of guard plate all is provided with anti-skidding sand grip, one side that the guard plate is close to anti-skidding sand grip is opened there is the antiskid groove, and all opens the screw on the relative one side of antiskid groove and terraced body, corresponds two the inner wall of screw all is provided with fixing bolt, the both ends of reinforcing plate are provided with platform and upper platform down respectively, and platform and upper platform all are provided with first trapezoidal fixture block down. The utility model discloses can play the guard action to the ladder body in the installation, prevent the corner wearing and tearing of the ladder body, can effectively increase this prefabricated staircase and building body's stability of being connected, compare the tradition and only reserve and have the mounting hole, be more convenient for install and dismantle the guardrail.

Description

Prefabricated reinforced concrete combined stair

Technical Field

The utility model relates to a building technical field especially relates to a prefabricated steel reinforced concrete combination stair.

background

the prefabricated staircase can change size, establish breach or space according to actual conditions, in time makes the adjustment. The prefabricated stairway is much faster to install than the conventional stairway without requiring a complicated frame for a worker to construct the stairway, regardless of whether the weather is proper or not, and without taking much time to mix and cast concrete, and has a stable design since the prefabricated concrete stairway is manufactured as a single assembly. The inherent structure of the precast concrete stairway ensures that the stairway can be easily adjusted if the precast concrete stairway is to be transferred.

But most of current prefabricated staircase structure is comparatively simple, and the wearing and tearing appear very easily in prefabricated staircase in handling and installation, and general prefabricated staircase only leaves the mounting hole moreover, and the installation of its stair guardrail and follow-up dismantlement are all comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a prefabricated steel-concrete combined stair.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A prefabricated steel-concrete combined stair comprises a stair body and a reinforcing plate, wherein the stair body and the reinforcing plate are arranged, rectangular clamping blocks are arranged on the outer wall of the top of the reinforcing plate at equal intervals, the other ends of the rectangular clamping blocks are clamped with the ladder body, protective plates are paved on the outer wall of the ladder body, and the outer wall of one side of the protection plate is provided with anti-skid convex strips, one side of the protection plate close to the anti-skid convex strips is provided with an anti-skid groove, and the opposite side of the anti-skid groove and the ladder body is provided with screw holes, the inner walls corresponding to the two screw holes are provided with fixing bolts, the two ends of the reinforcing plate are respectively provided with a lower platform and an upper platform, the lower platform and the upper platform are both provided with a first trapezoidal fixture block, one side of each end of the reinforcing plate is provided with a trapezoidal groove, and the dovetail groove all with first trapezoidal fixture block joint, rings preformed hole has all been opened to both ends one side outer wall both sides of reinforcing plate, preformed groove has all been opened to one side that lower platform and upper mounting plate are close to rings preformed hole.

Preferably, the ladder body and the reinforcing plate both comprise concrete layers, and weight-reducing through holes are formed in both sides of the inner portion of the reinforcing plate.

preferably, the reinforcing plate is additionally embedded with reinforcing steel bars on two sides of the inner part.

Preferably, the top of the ladder body is embedded with mounting sleeves at equal intervals.

Preferably, the inner wall of one side of the mounting sleeve is provided with a thread pushing column, and both ends of one side of the mounting sleeve, which is close to the thread pushing column, are welded with return springs.

Preferably, the same pressing plate is welded on the other side of each of the two return springs.

Preferably, the opposite side of the pressure plate and the installation sleeve is welded with second trapezoidal fixture blocks at equal intervals.

Compared with the prior art, the utility model provides a prefabricated steel reinforced concrete combination stair possesses following beneficial effect:

1. This prefabricated steel and concrete combination stair through the reinforcing plate that sets up, can strengthen the intensity of the ladder body, through the guard plate that sets up, can play the guard action to the ladder body in the installation, has the benefit that prevents the corner wearing and tearing of the ladder body.

2. This prefabricated reinforced concrete combination stair through be provided with anti-skidding sand grip and antiskid ribbed tile on the guard plate, can effectively improve the skid resistance ability of this ladder body, increases this prefabricated stair's practicality, through first trapezoidal fixture block and the trapezoidal tile that sets up, can effectively increase this prefabricated stair and building body's stability of being connected.

3. This prefabricated steel and concrete combination stair through the installation sleeve that sets up to and mutually support between the screw thread pushing post, clamp plate and the trapezoidal fixture block of second that set up, compare the tradition and only reserve and have the mounting hole, be more convenient for install and dismantle the guardrail.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can prevent ladder body corner wearing and tearing, can increase the stability of being connected with building body, be convenient for install and dismantle the guardrail.

Drawings

Fig. 1 is a schematic view of the overall structure of a prefabricated reinforced concrete combined stair provided by the utility model;

Fig. 2 is a schematic view of a cross-sectional structure of a reinforcing plate of the prefabricated reinforced concrete combined stair provided by the utility model;

Fig. 3 is the utility model provides a mounting sleeve structure sketch map of prefabricated reinforced concrete combination stair.

In the figure: 1-a ladder body, 2-a reinforcing plate, 3-a preformed groove, 4-a first trapezoidal fixture block, 5-a lower platform, 6-a trapezoidal groove, 7-a hanging ring preformed hole, 8-a rectangular fixture block, 9-a fixing bolt, 10-a protection plate, 11-an anti-skidding raised line, 12-an anti-skidding groove, 13-an installation sleeve, 14-an upper platform, 15-a weight-reducing through hole, 16-a concrete layer, 17-a steel bar column, 18-a pressing plate, 19-a reset spring, 20-a threaded push column and 21-a second trapezoidal fixture block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a prefabricated reinforced concrete combined stair comprises a stair body 1 and a reinforcing plate 2, wherein the stair body 1 and the reinforcing plate 2 are connected through cement casting, the strength of the stair body 1 can be effectively enhanced through the arranged reinforcing plate 2, rectangular clamping blocks 8 are fixed on the outer wall of the top of the reinforcing plate 2 at equal intervals through bolts, the other ends of the rectangular clamping blocks 8 are clamped with the stair body 1, a protective plate 10 is paved on the outer wall of the stair body 1, anti-skid convex strips 11 are fixed on the outer wall of one side of the protective plate 10 through bolts, anti-skid grooves 12 are formed in one side, close to the anti-skid convex strips 11, of the protective plate 10, the anti-skid convex strips 11 and the anti-skid grooves 12 are arranged on the protective plate 10, the anti-skid performance of the stair body 1 is effectively improved, screw holes are formed in the opposite sides of the anti-skid grooves 12 and the stair body 1, fixing bolts 9 are connected to the inner walls corresponding to the two screw holes through threads, and lower platform 5 and upper platform 14 all have first trapezoidal fixture block 4 through the bolt fastening, trapezoidal groove 6 has all been opened to both ends one side of reinforcing plate 2, and trapezoidal groove 6 all with first trapezoidal fixture block 4 joint, through setting up first trapezoidal fixture block 4 and trapezoidal groove 6 joint, can increase this prefabricated staircase and building body's stability of being connected, rings preformed hole 7 has all been opened to both ends one side outer wall both sides of reinforcing plate 2, preformed groove 3 has all been opened to one side that lower platform 5 and upper platform 14 are close to rings preformed hole 7.

The utility model discloses in, the ladder body 1 and reinforcing plate 2 all include concrete layer 16, and the inside both sides of reinforcing plate 2 are all opened and are had and subtract heavy through-hole 15.

And reinforcing steel bar columns 17 are additionally embedded at two sides of the inner part of the reinforcing plate 2.

Mounting sleeves 13 are embedded in the top of the ladder body 1 at equal intervals.

There is screw thread post pusher 20 one side inner wall of installing sleeve 13 through threaded connection, and the one side both ends that installing sleeve 13 is close to screw thread post pusher 20 all weld reset spring 19, same clamp plate 18 has all been welded to two reset spring 19's opposite side, clamp plate 18 has the trapezoidal fixture block of second 21 with the relative one side equidistance welding of installing sleeve 13, it promotes clamp plate 18 to rotate screw thread post pusher 20, can fix the guardrail through the trapezoidal fixture block of second 21, it only has the mounting hole to compare the tradition, be more convenient for install and dismantle the guardrail.

The working principle is as follows: this prefabricated steel and concrete combination stair carries out the handling with this prefabricated stair through rings preformed hole 7, strengthen the intensity of the ladder body 1 through reinforcing plate 2, through guard plate 10, prevent the ladder body 1 corner wearing and tearing in the installation, through set up anti-skidding sand grip 11 and antiskid groove 12 on guard plate 10, effectively improve the non-skid property of this ladder body 1, through first trapezoidal fixture block 4 and trapezoidal groove 6 joint, increase the stability of being connected of this prefabricated stair and building body, the installation is accomplished the back, insert the guardrail of specific model in the installing sleeve 13, rotate screw thread pushing ram 20 and promote clamp plate 18, it is fixed to the guardrail through second trapezoidal fixture block 21.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A prefabricated reinforced concrete combined stair comprises a stair body (1) and a reinforcing plate (2), and is characterized in that the stair body (1) and the reinforcing plate (2) are arranged, rectangular clamping blocks (8) are arranged on the outer wall of the top of the reinforcing plate (2) at equal intervals, the other end of each rectangular clamping block (8) is connected with the stair body (1) in a clamped mode, a protection plate (10) is laid on the outer wall of the stair body (1), anti-skidding convex strips (11) are arranged on the outer wall of one side of the protection plate (10), anti-skidding grooves (12) are formed in one side, close to the anti-skidding convex strips (11), of the protection plate (10), screw holes are formed in the opposite sides of the anti-skidding grooves (12) and the stair body (1), fixing bolts (9) are arranged on the inner walls corresponding to the two screw holes, a lower platform (5) and an upper platform (14) are arranged at the two ends of the reinforcing plate (2) respectively, and first trapezoidal clamping blocks (4) are arranged on the, trapezoidal groove (6) have all been opened to both ends one side of reinforcing plate (2), and trapezoidal groove (6) all with first trapezoidal fixture block (4) joint, rings preformed hole (7) have all been opened to both ends one side outer wall both sides of reinforcing plate (2), preformed groove (3) have all been opened to one side that lower platform (5) and last platform (14) are close to rings preformed hole (7).

2. A prefabricated steel-concrete composite staircase according to claim 1, characterised in that the ladder body (1) and the reinforcement plate (2) comprise a concrete layer (16) and that the reinforcement plate (2) has lightening through holes (15) on both sides of its interior.

3. A prefabricated steel-concrete combination stair according to claim 2, characterized in that reinforcing steel bars (17) are additionally embedded on two sides of the inner part of the reinforcing plate (2).

4. A prefabricated steel-concrete combination stair according to claim 3, characterized in that the top of the stair body (1) is embedded with mounting sleeves (13) at equal distances.

5. The prefabricated steel-concrete combined stair is characterized in that a threaded push column (20) is arranged on the inner wall of one side of the mounting sleeve (13), and a return spring (19) is welded at each of two ends of one side, close to the threaded push column (20), of the mounting sleeve (13).

6. Prefabricated steel-concrete combined stair according to claim 5, characterized in that the same pressure plate (18) is welded to the other side of each of the two return springs (19).

7. A prefabricated steel-concrete combination stair according to claim 6, characterized in that a second trapezoidal clamping block (21) is welded on the opposite side of the pressure plate (18) and the mounting sleeve (13) at equal intervals.