Prefabricated staircase mould and prefabricated staircase production method

Abstract

The present invention discloses a prefabricated staircase mold, which includes a support platform, two sets of first side mold assemblies and two sets of second side molds. The two sets of first side mold assemblies are rotatably arranged on the support platform. The first side mold assembly includes a first side mold and a bottom mold that are perpendicular to each other and fixedly connected. The first side mold can be switched between a vertical state and a horizontal state; the two sets of second side molds correspond to the two sets of first side mold assemblies and are located on both sides of the support platform, and the second side mold is slidably arranged relative to the support platform; when the first side mold is in a vertical state, the first side mold assembly and the second side mold form a containing space for pouring prefabricated staircase concrete. The present invention also discloses a prefabricated staircase production method. The present invention can reduce mold costs, reduce the labor intensity of workers, improve production efficiency, have good overall rigidity, simple maintenance and use, low cost, small footprint, and high precision.

Description

Technical Field

[0001] The invention relates to a prefabricated staircase mould and a prefabricated staircase production method, belonging to the technical field of concrete prefabricated component production. Background Art

[0002] The existing production of prefabricated concrete stairs generally adopts horizontal or vertical production. For vertical production, single-piece production is generally adopted. The production efficiency is average, the mold cost is high, there are not many common parts of the mold, the production cost is high, and the prefabricated staircase production occupies a large area. Regardless of whether it is horizontal or vertical production, after the prefabricated staircase components are demoulded, they need to be flipped by hoisting machinery. Flipping is difficult and dangerous, and improper operation may damage the components. Summary of the invention

[0003] In order to reduce mold costs, reduce floor space, and improve production efficiency, the present invention provides a prefabricated stair mold, and the specific technical solution is as follows.

[0004] A prefabricated staircase mold, characterized in that it includes a supporting platform, two sets of first side mold assemblies and two sets of second side molds, the two sets of first side mold assemblies are rotatably arranged on the supporting platform, the first side mold assembly includes a first side mold and a bottom mold that are perpendicular to each other and fixedly connected, and the first side mold can be switched between a vertical state and a horizontal state; the two sets of second side molds are respectively corresponding to the two sets of first side mold assemblies and are located on both sides of the supporting platform, and the second side mold is slidably arranged relative to the supporting platform; when the first side mold is in a vertical state, the first side mold assembly and the second side mold form a receiving space for pouring prefabricated staircase concrete.

[0005] By adopting the above technical scheme, one set of prefabricated staircase molds can simultaneously produce two prefabricated staircases in a vertical manner, thereby improving production efficiency; the first side mold assembly integrates the first side mold and the bottom mold; when the first side mold is in a horizontal state, the steel bars of the prefabricated staircase can be tied and buried; when the first side mold is in a vertical state, concrete can be poured; after the pouring is completed, the first side mold is switched to a horizontal state again, and the prefabricated staircase is flipped 90° along with the first side mold assembly, thereby realizing the flipping of the prefabricated staircase simply and safely; in addition, the two sets of first side mold assemblies share a supporting platform, thereby greatly reducing the footprint of the prefabricated staircase mold.

[0006] Furthermore, the middle part of the first side mold is hinged to the support platform, and the hinge axis is parallel to the length direction of the first side mold. When the first side mold is in a horizontal state, the first side mold is supported on the upper surface of the support platform, and when the first side mold is in a vertical state, the first side mold is supported on the side surface of the support platform. The two first side mold assemblies share a support platform, and the steel bar binding and embedded parts embedding stations are relatively concentrated, which is conducive to improving production efficiency and reducing the floor space of the two first side molds.

[0007] Furthermore, a first positioning piece with a through hole is provided on the support platform, and a second positioning piece with a through hole is provided at a position of the first side mold corresponding to the first positioning piece. When the first side mold is in a horizontal state, a pin can be used to pass through the through holes of the first positioning piece and the second positioning piece to fix the first side mold to the support platform.

[0008] Further, the first side mold is a ladder back mold or a step mold, and correspondingly, the second side mold is a step mold or a ladder back mold.

[0009] Furthermore, both ends of the second side mold are hingedly provided with end molds. The hinged end molds are convenient for installation and opening of the end molds, and the mold assembly efficiency is significantly improved.

[0010] Furthermore, a guide rail is provided below the second side mold, and a roller mechanism cooperating with the guide rail is provided at the lower end of the second side mold. Preferably, the roller mechanism includes a first roller and a second roller distributed along the extension direction of the guide rail, the first roller and the second roller are both located above the guide rail, and a limiting wheel is further provided below the second roller, and the second roller and the limiting wheel are both installed on a mounting seat fixed to the second side mold. The second side mold is slidably installed through the roller mechanism, which is convenient for adjusting the position of the second side mold and facilitating the assembly and demolding of the mold. When the first side mold is in a vertical state, the second side mold is moved so that the second side mold abuts against the bottom mold, and the first side mold, the bottom mold and the second side mold form a concrete pouring space; using the movable second side mold, there is no need to use lifting tools to install and disassemble the mold, and the installation and demolding efficiency is high, the labor intensity is low, and the safety factor is high. The limiting wheel can prevent the second side mold from tipping over.

[0011] Furthermore, a top end of the first side mold (the top end when in a vertical state) and a top end of the second side mold are both provided with a fixing seat with a U-shaped opening, and the fixing seat is used for installing a tension screw.

[0012] Furthermore, the bottom end of the first side mold assembly (the bottom end when the first side mold is in a vertical state) is hinged with a screw rod, and the end of the screw rod is vertically welded with a hinge shaft; the bottom end of the second side mold is provided with a fixing seat with a U-shaped opening. When the second side mold and the bottom mold are in contact, the bottom end of the second side mold and the bottom end of the first side mold assembly are fixed by the screw rod, and the screw rod is inserted into the U-shaped opening of the fixing seat at the bottom end of the second side mold, and is fixed by fasteners such as nuts and washers; the top ends of the second side mold and the first side mold are fixed by a tension screw rod. In this way, the reliable positioning of the distance between the first side mold and the second side mold is achieved, and the dimensional accuracy of the prefabricated component is ensured.

[0013] Based on the same inventive concept, the present invention also relates to a method for producing prefabricated stairs, which adopts the above-mentioned prefabricated staircase mold and mainly comprises the following steps:

[0014] 1) The first side form is in a horizontal state, and reinforcement binding and embedded parts embedding operations are performed on the first side form;

[0015] 2) Switching the first side mold to a vertical state, and moving the second side mold so that the bottom mold abuts against the second side mold;

[0016] 3) Fixing the relative position between the first side mold and the second side mold;

[0017] 4) pouring concrete to form prefabricated stairs;

[0018] 5) Move the second side form away from the first side form, and flip the first side form and the prefabricated stairs together to a horizontal state.

[0019] Compared with the prior art, the present invention has the following beneficial effects.

[0020] 1. Two sets of prefabricated staircase production molds share a support platform, and the processing procedures of steel bar binding and embedded parts embedding are relatively concentrated above the support platform, which is conducive to improving production efficiency, reducing mold costs, and producing two prefabricated components at one time;

[0021] 2. Two sets of first side mold assemblies share a support platform, which reduces the footprint of the prefabricated stair mold;

[0022] 3. The first side mold assembly integrates the first side mold and the bottom mold. The production and flipping of the prefabricated stairs are greatly simplified compared with the existing technology. The flipping of the prefabricated stairs does not require the use of special lifting equipment, and the safety and efficiency of the flipping are greatly improved.

[0023] 4. Good overall rigidity, simple maintenance and use, and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a three-dimensional schematic diagram of the prefabricated staircase mold of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of the support platform;

[0026] Figure 3 is a schematic diagram of the support platform and guide rails;

[0027] Figure 4 is a schematic diagram of one of the first side molds in a horizontal state;

[0028] Figure 5 is a schematic diagram showing that the two first side molds are both in a vertical state;

[0029] Figure 6 is a three-dimensional schematic diagram of the first side mold;

[0030] Figure 7 yes Figure 1 A magnified schematic diagram of the middle A area;

[0031] Figure 8 yes Figure 6 A magnified schematic diagram of area A in the middle.

[0032] In the figure: supporting platform 1, first side mold 2, second side mold 3, bottom mold 4, limiting pad 5, first positioning member 6, second positioning member 7, guide rail 8, first roller 9, second roller 10, limiting wheel 11, mounting seat 12, triangular support frame 13, end mold 14, fixing seat 15, tension screw 16, screw 17, hinge shaft 18. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] See also Figure 1-8 A prefabricated stair mold, comprising a supporting platform 1, two sets of first side mold assemblies and two sets of second side molds 3, the two sets of first side mold 1 assemblies are rotatably arranged on the supporting platform 1, the first side mold assembly 2 comprises a first side mold 2 and a bottom mold 4 which are perpendicular to each other and fixedly connected, and the first side mold 2 can be switched between a vertical state and a horizontal state; the two sets of second side molds 3 correspond to the two sets of first side mold assemblies respectively and are located on both sides of the supporting platform 1, and the second side mold 3 is slidably arranged relative to the supporting platform 1; when the first side mold 2 is in a vertical state, the first side mold assembly and the second side mold 3 form a receiving space for pouring prefabricated stair concrete.

[0035] See also Figure 1 , 46. The first side mold 2 is used to form the back of the prefabricated staircase, that is, the lower surface of the prefabricated staircase when it is in use. The middle part of the first side mold 2 is hinged to the support platform 1, and the hinge axis is parallel to the length direction of the first side mold 2. The hinge position is located at the edge of the top of the support platform 1. The support platform 1 and the first side mold 2 are both welded and fixed with ear plates with through holes, and the hinge axis passes through the ear plates of both to achieve the above-mentioned hinge connection. When the first side mold 2 is in a horizontal state, the first side mold 2 is supported on the upper surface of the support platform. When the first side mold is in a vertical state, the first side mold is supported on the side surface of the support platform. The side surface of the support platform 1 is provided with a limiting pad 5 to ensure that the first side mold 2 can be in a vertical state. The switching of the first side mold 2 between the vertical state and the horizontal state can be achieved by a hydraulic cylinder (not shown).

[0036] See also Figure 1 , 4 -5, two sets of first side molds 2 are respectively hinged to the top edge of the supporting platform 1, and a first positioning member 6 with a through hole is provided on the supporting platform 1. The first side mold 2 is provided with a second positioning member 7 with a through hole at a position corresponding to the first positioning member 6. When the first side mold 2 is in a horizontal state, a pin can be used to pass through the through holes of the first positioning member 6 and the second positioning member 7 to fix the first side mold 2 to the supporting platform 1. Figure 4 The example in the figure shows that two sets of first side molds 2 share the first positioning member 6 of the support platform 1. Only one of the two sets of first side molds can be in a horizontal state to perform the steel bar binding and embedded parts embedding operations, and the two sets of first side molds 2 cannot be performed at the same time. It can be understood by those skilled in the art that the width of the support platform 1 can be appropriately widened, and two sets of first positioning members 6 are provided in the middle of the top of the support platform. The two sets of first positioning members 6 correspond to the two sets of first side molds 2 respectively, so that the two sets of first side molds can be in a horizontal state at the same time, and the steel bar binding and embedded parts embedding operations can be performed at the same time.

[0037] Figure 1 In the embodiment, the first side mold 2 is a ladder back mold, and correspondingly, the second side mold 3 is a step mold for forming the steps of the prefabricated staircase. It should be noted that the first side mold 2 can also be a step mold, and correspondingly, the second side mold 3 is a ladder back mold.

[0038] See also Figure 1 , 7 A guide rail 8 is arranged below the second side mold 3 , and a roller mechanism cooperating with the guide rail 8 is arranged at the lower end of the second side mold 3 .

[0039] The roller mechanism includes a first roller 9 and a second roller 10 distributed along the extension direction of the guide rail 8. The first roller 9 and the second roller 10 are both located above the guide rail 8. A limiting wheel 11 is also provided below the second roller 10. The second roller 10 and the limiting wheel 11 are both mounted on a mounting seat 12 fixed to the second side mold 3. The guide rail 8 is provided on the upper surface of the channel steel wing plate, and the web of the channel steel is in a vertical state. The second roller 10 and the limiting wheel 11 are respectively located above and below the guide rail 8, forming a "clamp" on the guide rail 8, which is helpful to prevent the second side mold 3 from tipping over. The second roller 10 and the limiting wheel 11 are fixed to the lower outer side of the second side mold 3 through a triangular support frame 13, which is stable and reliable. It should be noted that the roller mechanism can also adopt other structural forms, as long as it can ensure that the second side mold can slide.

[0040] See also Figure 1 , both ends of the second side mold 3 are hingedly provided with end molds 14. The hinged end molds 14 facilitate installation and opening of the end molds, and the mold assembly efficiency is significantly improved.

[0041] See also Figure 1 , 6 The top end of the first side mold 2 (the top end when in a vertical state) and the top end of the second side mold 3 are both provided with a fixing seat 15 with a U-shaped opening, and the fixing seat 15 is used to install the tension screw 16.

[0042] The bottom end of the bottom mold 4 of the first side mold assembly is hinged with a screw 17, and the end of the screw 17 is vertically welded with a hinge shaft 18; the bottom end of the second side mold 3 is provided with a fixing seat 15 with a U-shaped opening. When the second side mold 3 and the bottom mold 4 are in contact, the bottom end of the second side mold 3 and the bottom end of the first side mold assembly are fixed by the screw 17, and the screw 17 is inserted into the U-shaped opening of the fixing seat at the bottom end of the second side mold, and fixed by fasteners such as nuts and washers; the top of the second side mold 3 and the first side mold 2 are fixed by a tension screw 16. In order to prevent leakage, a sealing strip (not shown) is also provided on the edge of the bottom mold 4 facing the second side mold 3. When the bottom mold 4 and the second side mold 3 are in contact, the sealing strip can ensure that concrete will not leak from between the two.

[0043] The present invention also relates to a method for producing prefabricated stairs, which adopts the above-mentioned prefabricated staircase mold and mainly comprises the following steps:

[0044] 1) The first side form 2 is in a horizontal state, and reinforcement binding and embedded parts embedding operations are performed on the first side form 2;

[0045] 2) Switching the first side mold 2 to a vertical state, and moving the second side mold 3 so that the bottom mold 4 abuts against the second side mold 3;

[0046] 3) Fixing the relative position between the first side mold 2 and the second side mold 3;

[0047] 4) pouring concrete to form prefabricated stairs;

[0048] 5) Move the second side mold 3 away from the first side mold 2, and flip the first side mold 2 and the prefabricated stairs to a horizontal state.

[0049] The embodiments of the present invention are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention is not limited to the above-mentioned specific implementations, which are merely illustrative and not restrictive. Under the enlightenment of the present invention, those skilled in the art can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. A prefabricated staircase mold, characterized in that: It comprises a supporting platform, two sets of first side formwork assemblies and two sets of second side formworks, wherein the two sets of first side formwork assemblies are rotatably arranged on the supporting platform, the first side formwork assembly comprises a first side formwork and a bottom formwork which are perpendicular to each other and fixedly connected, and the first side formwork can be switched between a vertical state and a horizontal state; the two sets of second side formworks correspond to the two sets of first side formwork assemblies and are located on both sides of the supporting platform respectively, and the second side formworks are slidably arranged relative to the supporting platform; when the first side formwork is in a vertical state, the first side formwork assembly and the second side formwork form an accommodating space for pouring precast staircase concrete; The middle part of the first side mold is hinged to the support platform, and the hinge axis is parallel to the length direction of the first side mold. When the first side mold is in a horizontal state, the first side mold is supported on the upper surface of the support platform, and when the first side mold is in a vertical state, the first side mold is supported on the side surface of the support platform; A first positioning piece with a through hole is provided on the support platform, and a second positioning piece with a through hole is provided at a position of the first side mold corresponding to the first positioning piece. When the first side mold is in a horizontal state, a pin can be used to pass through the through holes of the first positioning piece and the second positioning piece to fix the first side mold to the support platform.

2. A prefabricated staircase mold according to claim 1, characterized in that: The first side mold is a ladder back mold or a step mold, and correspondingly, the second side mold is a step mold or a ladder back mold.

3. A prefabricated staircase mold according to claim 1, characterized in that: Both ends of the second side mold are hingedly provided with end molds.

4. A prefabricated staircase mold according to claim 1, characterized in that: A guide rail is arranged below the second side mold, and a roller mechanism cooperating with the guide rail is arranged at the lower end of the second side mold.

5. A prefabricated staircase mould according to claim 4, characterized in that: The roller mechanism includes a first roller and a second roller distributed along the extension direction of the guide rail. The first roller and the second roller are both located above the guide rail. A limiting wheel is also provided below the second roller. The second roller and the limiting wheel are both installed on a mounting seat fixed to the second side mold.

6. The prefabricated staircase mold according to claim 1, characterized in that: A fixing seat with a U-shaped opening is provided at the top end of the first side mold and the top end of the second side mold, and the fixing seat is used to install the tension screw rod.

7. The prefabricated staircase mold according to claim 1, characterized in that: A screw is hinged at the bottom end of the first side mold assembly, and a hinge shaft is vertically welded to the end of the screw; a fixing seat with a U-shaped opening is arranged at the bottom end of the second side mold.

8. A method for producing prefabricated stairs, using the prefabricated staircase mold according to any one of claims 1 to 7, mainly comprising the following steps: 1) The first side form is in a horizontal state, and reinforcement binding and embedded parts embedding operations are performed on the first side form; 2) Switching the first side mold to a vertical state, and moving the second side mold so that the bottom mold abuts against the second side mold; 3) Fixing the relative position between the first side mold and the second side mold; 4) pouring concrete to form prefabricated stairs; 5) Move the second side form away from the first side form, and flip the first side form and the prefabricated stairs together to a horizontal state.

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