Adjustable prefabricated stair mold

Abstract

The utility model discloses an adjustable prefabricated stair mold. The adjustable prefabricated stair mold comprises an underframe, a base mold and flanges, the base mold comprises a bottom end mold, movable molds and a top end mold which are arranged in parallel in sequence, and the number of the movable molds is adjustable; the base die is fixed on the underframe; the two sides, the bottom end and the top end of the base die are limited and sealed through the flanges. According to the utility model, the number of stages of the mold prefabricated stairs can be adjusted by arranging different numbers of movable molds, so that the practicability is high in the same project; and meanwhile, disassembly can be achieved only through bolts, adjustment and installation are convenient and fast, the construction speed is high, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated stairs for assembled buildings, in particular to an adjustable prefabricated staircase mould. Background Art

[0002] At present, there are mainly two types of staircase molds used to produce stairs, namely vertical staircase molds and flat staircase molds. Both staircase molds are designed and produced according to the size of the stairs, and their length, width and height are fixed, that is, each staircase mold can only produce one type of staircase. Once the size of the staircase changes, a new mold needs to be redesigned. Therefore, the versatility of staircase molds is poor.

[0003] In the Chinese patent application number 201410328675.9, an adjustable universal stair template is disclosed, including a tread surface template, a tread board template and a side template. The tread surface template is provided with a length adjustment mechanism, the tread board template is provided with a height adjustment mechanism, a stair angle adjustment structure is provided at the bottom of the connection between the staircase and the lower platform, and each tread board template is provided with a tread angle adjuster at the bottom, and the tread angle adjuster is connected to the adjacent tread surface template. Although the universal stair template of the above structure can adjust the size of the stairs, it has a relatively complex structure, poor adjustment effect, and high production and use costs.

[0004] In the Chinese patent application number 202021546759.7, a new type of adjustable stair mold is disclosed, including a base, side mold 1, side mold 2, a crossbeam, a fixed frame, and a column. A mold height adjustment mechanism is provided between the mold body and the base, and the width of the manufactured stairs and the width and height of the stair treads are adjusted by adjusting the mold width adjustment mechanism, the mold height adjustment mechanism, and the side mold 2. Although the above structure can adjust the height and width of the stairs, it cannot adjust the number of steps in the same project, and cannot be used to produce universal stair molds with different steps. Utility Model Content

[0005] The utility model aims to provide an adjustable prefabricated staircase mould with adjustable stair steps.

[0006] The adjustable prefabricated staircase mold provided by the utility model comprises a base frame, a base mold and a retaining edge; the base mold comprises a bottom mold, a movable mold and a top mold arranged in sequence and in parallel, and the number of movable molds is adjustable; the base mold is fixed on the base frame; and the retaining edge limits and closes the two sides, the bottom and the top of the base mold.

[0007] In one embodiment of the above-mentioned mold, the base frame is a rectangular steel frame, which is formed by welding a plurality of I-beams end to end.

[0008] In one embodiment of the above-mentioned mold, the bottom mold includes tooth plates vertically arranged on both sides, and the tooth plates have four teeth; a step plate is horizontally arranged on the upper end of the tooth plates to close the top ends of the tooth plates on both sides.

[0009] In one embodiment of the above-mentioned mold, the top mold includes special-shaped plates vertically arranged on both sides, and the two special-shaped plates are connected and closed by a step plate; the bottom end of the top mold has an inward folded edge.

[0010] In one embodiment of the above-mentioned mold, the movable mold includes trapezoidal plates vertically arranged on both sides, and the two trapezoidal plates are connected and closed by a step plate; the bottom end of the movable mold has an inward folded edge.

[0011] In one embodiment of the above-mentioned mold, the ribs include side ribs, bottom ribs and top ribs; there are two side ribs, which are respectively arranged on both sides of the base mold; the bottom rib and the top rib are respectively arranged at the bottom and top of the base mold.

[0012] In one embodiment of the above mold, threaded holes are provided on the plates arranged on both sides of the bottom mold, the movable mold and the top mold, and the side ribs are fixedly connected to the bottom mold, the movable mold and the top mold by bolts.

[0013] In one embodiment of the above-mentioned mold, the bottom end rib is fixedly connected to the top surface of the side rib and the base mold by bolts respectively, so as to close the bottom end of the base mold.

[0014] In one embodiment of the above-mentioned mold, the top rib is fixedly connected to the top surface of the side rib and the base mold by bolts respectively, so as to close the top of the base mold.

[0015] The beneficial effects of the utility model are:

[0016] The number of levels of the mold-prefabricated stairs can be adjusted by setting different numbers of movable molds, which is highly practical in the same project. At the same time, it can be disassembled only by bolts, which is convenient and quick to adjust and install, and the construction speed is fast, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the axonometric structure of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle base.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the middle base and base mold. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the relevant technical solutions. Obviously, the described embodiments are only part of the embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 As shown, the adjustable prefabricated staircase mold disclosed in this embodiment includes a base frame 1, a base mold 2 and a retaining edge 3.

[0022] like Figure 2 As shown, the base frame 1 is a rectangular steel frame formed by welding a plurality of I-beams end to end.

[0023] like Figure 3 As shown, the base mold 2 is a detachable step mold, including a bottom mold 21, a top mold 22 and a movable mold 23.

[0024] The bottom mold 21 is a step mold for the initial four steps at the bottom of the stairs, which is fixed to the top of the base frame 1. The bottom mold includes tooth plates vertically arranged on both sides, with four teeth on the tooth plates; a step plate is horizontally arranged on the upper ends of the tooth plates to close the upper ends of the two tooth plates. The bottom end of the bottom mold has an inward folded edge, which is fixed to the base frame by bolts on the folded edge.

[0025] The top mold 22 is a step mold for the initial step at the top of the stairs. The top mold includes two vertically arranged special-shaped plates, which are approximately in the shape of a right-angled trapezoid, and the two special-shaped plates are connected and closed by the step plate. The bottom end of the top mold has an inward folding edge.

[0026] The movable mold 23 is a step mold of the middle section of the stairs, and the movable mold includes trapezoidal plates vertically arranged on both sides, and the two trapezoidal plates are connected and closed by a step plate. The bottom end of the movable mold has an inward folding edge.

[0027] The top mold 22 and the movable mold 23 can be fixed on the base frame 1 by folding.

[0028] The plates arranged on both sides of the bottom die, the movable die and the top die are all provided with threaded holes, so as to facilitate the connection and fixation with various components of the retaining edge.

[0029] When installing and using, first fix the bottom mold on the bottom frame, then select the appropriate movable mold according to the actual number of stair steps required and arrange it on the bottom frame behind the bottom mold, and finally fix the top mold. The bottom mold, movable mold and top mold are combined into a complete stair step mold.

[0030] The ribs 3 include side ribs 31 , a bottom rib 32 and a top rib 33 .

[0031] There are two side ribs 31, which are respectively arranged on both sides of the base mold 2. The side ribs and the components of the base mold are fixedly connected by bolts. After the connection, the positions of the components of the base mold are completely limited and fixed, and the movable mold and the bottom mold, the movable mold and the top mold, and the movable molds are kept close to each other without gaps, so that there will be no unevenness at the joints during pouring.

[0032] The bottom rib 32 and the top rib 33 are respectively arranged at the bottom and top of the base mold 2; the bottom rib is fixedly connected to the top surface of the side rib and the base mold by bolts to close the bottom end of the base mold; the top rib is fixedly connected to the top surface of the side rib and the base mold by bolts to close the top end of the base mold.

[0033] The advantages of using this mold are:

[0034] The number of levels of the mold-prefabricated stairs can be adjusted by setting different numbers of movable molds, which is highly practical in the same project. At the same time, it can be disassembled only by bolts, which is convenient and quick to adjust and install, and the construction speed is fast, which improves work efficiency.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although detailed descriptions are made with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adjustable prefabricated staircase mold, characterized in that: It includes a base frame, a base mold and a retaining edge; The base mold comprises a bottom mold, a movable mold and a top mold which are arranged in sequence and in parallel, and the number of movable molds is adjustable; the base mold is fixed on the base frame; the retaining edges limit and seal the two sides, the bottom and the top of the base mold.

2. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The base frame is a rectangular steel frame formed by welding a plurality of I-beams end to end.

3. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The bottom mold comprises tooth plates vertically arranged on two sides, and the tooth plates are provided with four teeth; a step plate is horizontally arranged on the upper end of the tooth plates to close the top ends of the tooth plates on both sides.

4. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The top mold comprises special-shaped plates vertically arranged on two sides, and the two special-shaped plates are connected and closed by a step plate; the bottom end of the top mold is provided with an inward folding edge.

5. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The movable mold comprises trapezoidal plates vertically arranged on two sides, and the two trapezoidal plates are connected and closed by a step plate; the bottom end of the movable mold is provided with an inward folding edge.

6. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The ribs include side ribs, bottom ribs and top ribs; There are two side ribs, which are respectively arranged on both sides of the base mold; the bottom rib and the top rib are respectively arranged at the bottom and the top of the base mold.

7. The adjustable prefabricated staircase mold according to claim 6, characterized in that: Threaded holes are provided on the plates arranged on both sides of the bottom die, the movable die and the top die, and the side retaining edges are fixedly connected with the bottom die, the movable die and the top die by bolts.

8. The adjustable prefabricated staircase mold according to claim 6, characterized in that: The bottom end rib is fixedly connected to the top surface of the side rib and the base mold by bolts respectively, so as to close the bottom end of the base mold.

9. The adjustable prefabricated staircase mold according to claim 6, characterized in that: The top rib is fixedly connected to the top surface of the side rib and the base mold by bolts respectively, so as to close the top of the base mold.

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