CN111283853A - A prefabricated staircase mould - Google Patents

Abstract

The invention discloses a prefabricated stair mold, comprising: a base, the base comprises a base frame assembly and a bottom plate arranged on the base frame assembly, the base plate is provided with a plurality of step moldings for forming stair steps and a rib, the rib includes a left rib and a right rib that can be detachably installed on the stepped surface of the bottom plate, and is detachably installed on the left rib and the right rib The front rib and the rear rib of the side, the left rib, the right rib, the front rib and the right rib surround to form a pouring space for pouring a prefabricated staircase, and the step forming part is located at the the stepped surface of the bottom plate. The prefabricated stair mold can be used for casting prefabricated stairs of various specifications, which can improve the utilization efficiency of the mold and save the cost of the prefabricated stair mold.

Description

A prefabricated staircase mould

technical field

The invention relates to the field of construction, and further relates to a prefabricated staircase mould.

Background technique

Stairs are the main vertical traffic passages and escape passages in buildings. In recent years, the emergence and development of prefabricated staircases has resulted in the continuous improvement of construction speed and construction quality. As an indispensable part of architecture, the industrialization of stairs plays an important role in promoting the industrialization of modern buildings. Integral prefabricated reinforced concrete stairs are an important way in the industrialization of stairs.

Prefabricated stairs are prefabricated using prefabricated molds, and then transported to the construction site for assembly, which can greatly improve construction quality and construction speed.

It should be pointed out that there are various types of buildings, and different buildings require prefabricated stairs of different specifications. In particular, the front-end owners and structural designers have weak awareness of building industrialization. Many projects are not designed according to industrial design. The shapes of prefabricated stairs vary among projects, and even in the same project, with a wide variety of specifications.

At present, for prefabricated stairs with different specifications and shapes, it is necessary to design a variety of prefabricated stair molds with different specifications and shapes. The mold efficiency is low, which not only fails to meet the modularization requirements of construction industrialization, but also increases the development and development of prefabricated stair molds. cost of production.

To sum up, the traditional prefabricated stair mold needs to be improved.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a universal base mold for prefabricated stairs. The universal base mold for prefabricated stairs can be applied to the pouring of various prefabricated stairs, so as to improve the use efficiency of the mold, reduce the production cost of the mold, and meet the mold requirements of the construction industry. digital requirements.

In order to achieve the above object, the present invention provides a prefabricated stair mold, comprising: a base, the base includes a base frame assembly and a bottom plate provided on the base frame assembly, the bottom plate has a plurality of stair-forming parts on the base plate the step forming portion of the step; and

a rib, the rib includes a left rib and a right rib that can be detachably installed on the stepped surface of the bottom plate, and a front rib that can be detachably installed on the left and right rib A rib and a rear rib, the left rib, the right rib, the front rib and the right rib surround to form a pouring space for pouring a prefabricated staircase, and the step forming part is located on the bottom plate of the step surface.

Preferably, the distance between the left rib and the right rib can be adjusted.

Preferably, the lower end of the left rib has a left mounting portion matched with the step forming portion of the bottom plate, and the left mounting portion has a step matched with the step forming portion.

Preferably, the lower end of the right rib has a right mounting portion matched with the step forming portion of the bottom plate, and the right mounting portion has a step matched with the stepping forming portion.

Preferably, the prefabricated stair mold further comprises a plurality of connecting pieces, the connecting pieces comprise a rib connecting part, a first bottom connecting part and a second bottom connecting part which are connected to each other, and the rib connecting part is adapted to be connected to The outer side wall of the left rib or the right rib, the first bottom plate connecting portion and the second bottom plate connecting portion are respectively adapted to be connected to the two groove walls of the step forming portion.

Preferably, the prefabricated stair mold further comprises a plurality of fixing pieces, the fixing pieces are used for fixing the rib connecting part of the connecting piece to the outer side wall of the left rib or the right rib, The first bottom plate connecting part and the second bottom plate connecting part of the connecting piece are fixed to the wall of the measuring groove of the step forming part.

Preferably, two ends of each groove wall of the two groove walls of the forming part respectively have oblong through holes that are consistent with the length direction of the groove wall, and the connecting part of the first bottom plate of the connecting piece passes through. The position of the through hole on the connecting part with the second bottom plate and the oblong through hole on the groove wall is adjusted to adjust the position where the left sidewall or the right sidewall is fixed on the bottom plate.

Preferably, the through holes of the first bottom plate connecting part and the second bottom plate connecting part of the connecting piece are oblong through holes corresponding to the oblong through holes on the groove wall.

Preferably, the rib further comprises a front rib that can be detachably installed on the front end of the left rib and the front end of the right rib, and a front rib that can be detachably installed on the rear end of the left rib and the right rib. the rear rib at the rear end of the right rib.

Preferably, the rib has ribs of various specifications for pouring prefabricated stairs with different thicknesses or different lengths of rest platforms.

Other advantages of the present invention will be further illustrated by the specific examples, claims and drawings.

Description of drawings

FIG. 1 is a schematic diagram of an exploded structure of a universal staircase mold according to a preferred embodiment of the present invention.

Fig. 2 is a partial enlarged structural schematic diagram of a universal stair mold according to a preferred embodiment of the present invention.

Fig. 3 is a partial enlarged structural schematic diagram of a universal stair mold according to a preferred embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help the understanding of the present invention, but do not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

1 to 3 of the description, the prefabricated stair mold provided by the present invention is described. The prefabricated stair mold provided by the present invention can pour prefabricated stairs of various sizes and shapes, which can improve the use efficiency of the mold and reduce the production of the mold. cost.

The prefabricated stair mold includes a universal base 10 , a rib 20 that can be detachably installed on the universal base, and a casting workpiece 30 installed on the rib. The rib 20 can be detachably installed on the universal base 10 , and the rib 20 has various specifications corresponding to different sizes of prefabricated stairs. When the stairs with different sizes need to be poured, it is only necessary to replace the baffle 20 of the corresponding size, and the universal base 10 does not need to be replaced, so the use efficiency of the universal base 10 can be improved, and the production of molds can be reduced. cost.

The universal base 10 further includes a base frame assembly 11 and a bottom plate 12 mounted on the base frame assembly 11 . The step surface 121 of the bottom plate 12 away from the base frame assembly 11 has a plurality of step forming parts 122 for forming prefabricated stair steps. Preferably, the step forming portion 122 is a "V"-shaped groove with an upward opening.

The rib 20 is detachably mounted on the stepped surface 121 of the bottom plate 12 of the universal base 10 .

The rib 20 further includes a left rib 21 and a right rib 22 spaced apart from each other, and the left rib 21 and the right rib 22 are respectively detachably mounted on the steps of the bottom plate 12 . face 121.

The left sidewall 21 has a plurality of left mounting portions 211 that are matched with the plurality of the forming portions 122 of the bottom plate 12 , so that when the left sidewall 21 is mounted on the bottom plate 12 When the step surface 121 is formed, the pouring material is prevented from flowing out from the gap between the left rib 21 and the bottom plate 12 . Specifically, the left mounting portion 211 of the left rib 21 is a "V"-shaped protrusion that fits with the "V"-shaped groove of the molding portion 122 .

Correspondingly, the right rib 22 has a plurality of right mounting portions 221 adapted to the plurality of the forming portions 122 of the bottom plate 12 , so that when the right rib 22 is mounted on the bottom plate 12 22 times When the step surface 121 is installed, the pouring material is prevented from flowing out from the gap between the right rib 22 and the bottom plate 12 . Specifically, the right mounting portion 221 of the right rib 22 is a "V"-shaped protrusion that fits with the "V"-shaped groove of the molding portion 122 .

Further, the rib 20 further includes a front rib 23 and a rear rib 24 installed on the corresponding ends of the left rib 21 and the right rib 22, wherein the front rib 23 is installed on the The front end portions of the left sidewall 21 and the right sidewall 22 are correspondingly installed, and the rear sidewall 24 is correspondingly mounted on the corresponding rear end portions of the left sidewall 21 and the right sidewall 22 . The left rib 21 , the right rib 22 , the front rib 23 , the rear rib 24 and the bottom plate 12 are surrounded to form a casting space for casting a prefabricated staircase.

It should be noted that, in the prefabricated stair mold provided by the present invention, the distance between the left rib 21 and the right rib 22 of the rib 20 can be adjusted, so as to provide for pouring molding with multiple Prefabricated stairs of various widths.

Specifically, the prefabricated staircase further includes a plurality of connecting pieces 40 and a plurality of fixing pieces 50 for fixing the left sidewall 21 and the right sidewall 22 to the bottom plate 12 of the universal base 10 . Preferably, a connecting piece 40 and a corresponding fixing piece 50 are provided at the position where the step forming portion 122 of each bottom plate 12 is connected to the left mounting portion 211 and the right mounting portion 221 .

Referring to FIG. 2 of the specification, further, the connecting member 40 includes a rib connecting portion 41 , a first bottom connecting portion 42 and a second bottom connecting portion 43 , which are connected to each other. The rib connecting portion of the connecting member 40 41 is suitable for being fixedly connected to the left sidewall 21 or the right sidewall 22 , and the first bottom plate connecting portion 42 and the second bottom plate connecting portion 43 are suitable for being fixedly connected to the bottom plate 12 . Preferably, the sidewall connecting portion 41 , the first bottom plate connecting portion 42 and the second bottom plate connecting portion 43 of the connecting member 40 are respectively plate-shaped and integrally formed with each other. Preferably, the included angle between the planes where the first bottom plate connecting portion 42 and the second bottom plate connecting portion 43 of the connecting member 40 are located and the angle between the two groove walls 1221 of the step forming portion 122 The angles are the same, and the planes where the first bottom plate connecting portion 42 and the second bottom plate connecting portion 43 are located are respectively perpendicular to the plane where the sidewall connecting portion 41 is located.

When the connecting piece 40 is configured to install the left sidewall 21 of the sidewall 20 on the bottom plate 12 of the universal base 10 , the sidewall connecting portion 41 of the connecting piece 40 It is in contact with the side wall of the left sidewall 21, and is fixed to the sidewall of the left sidewall 21 by the fixing member 50; the first bottom plate connecting portion 42 of the connecting member 40 is connected to the A groove wall 1221 of the step forming part 122 is in contact and is fixed by the fixing member 50 ; A groove wall 1221 is in contact and is fixed by the fixing member 50 .

When the connecting piece 40 is configured to install the right sidewall 21 of the sidewall 20 on the bottom plate 12 of the universal base 10 , the sidewall connecting portion 41 of the connecting piece 40 It is in contact with the side wall of the right sidewall 22, and is fixed to the sidewall of the right sidewall 22 by the fixing member 50; the first bottom plate connecting portion 42 of the connecting member 40 is connected to the A groove wall 1221 of the step forming part 122 is in contact and is fixed by the fixing member 50 ; A groove wall 1221 is in contact and is fixed by the fixing member 50 .

It is worth mentioning that in the process of assembling and fixing, the connecting piece 40 is assembled on the outside of the side walls of the left rib 21 and the right rib 22 , and also has the function of reinforcing the left rib 21 and the right rib 22 . The structural strength of the right rib 22 increases the stability of the left rib 21 and the right rib 22 .

Preferably, the fixing member 50 is a screw assembly, that is, the connecting member 40 , the left rib 21 , the right rib 22 and the bottom plate 12 are fixed to each other through the screw assembly.

Further, the flange connecting portion 41 , the first bottom plate connecting portion 42 and the second bottom plate connecting portion 43 of the connecting member 40 are connected to the side wall of the left flange 21 and the right flange. The side wall of the bottom plate 12 and the corresponding positions of the two groove walls 1221 of the bottom plate 12 respectively have corresponding mounting through holes for fixing by the fixing member 50 implemented as a screw assembly.

The connecting member 40 further has a first through hole 410 formed in the rib connecting portion 41 , a second through hole 420 formed in the second base connecting portion 42 , and a second base connecting portion 420 . 43 of the third through hole 430 . The side wall of the left rib 21 further has a fourth through hole 210 , one end of the groove wall 1221 of the step forming part 122 has a fifth through hole 1222 , and the corresponding end of the other groove wall 1221 has a sixth through hole 1223 .

When the connecting member 40 , the left rib 21 and the bottom plate 12 are assembled together, the first through hole 410 formed in the rib connecting portion 41 corresponds to all the holes of the left rib 21 . In the fourth through hole 210 , the second through hole 420 located in the first bottom plate connecting portion 42 corresponds to the fifth through hole 1222 in the step forming portion 122 , and is located in the second bottom plate connecting portion 43 . The third through-holes 430 of 12 correspond to the sixth through-holes 1223 of the step forming part 122 .

Referring to FIG. 3 of the specification, further, the fifth through hole 1222 and the sixth through hole 1223 located in the two groove walls 1221 of the step forming part 122 are respectively oblong through holes, that is to say , the length of the through holes of the fifth through holes 1222 and the sixth through holes 1223 is greater than the width of the through holes, and the width of the through holes of the fifth through holes 1222 and the sixth through holes 1223 is the same as that of all the through holes. The width of the screw of the fixing member 50 is adapted. The length directions of the fifth through holes 1222 and the sixth through holes 1223 are the same as the lengthwise extending directions of the two groove walls 1221 .

Correspondingly, the second through hole 420 located at the first base plate connecting portion 42 and the third through hole 430 located at the second base plate connecting portion 42 are also oblong through holes respectively, that is to say , the length of the second through hole 420 and the third through hole 430 is greater than the width of the through hole. And the width of the through holes of the second through hole 420 and the third through hole 430 is adapted to the width of the screw of the fixing member 50 .

It should be pointed out that changing the corresponding positions of the through hole of the connecting piece 40 and the through hole of the groove wall 1221 along the length of the groove wall 1221 can change the left rib 21 and the through hole of the groove wall 1221 . The distance between the right rib 22, so that prefabricated stairs with different width dimensions can be cast.

Correspondingly, the structure of the right rib 22 is symmetrical with the structure of the left rib 21 , and the structure of the step forming part 122 for installing one end of the right rib 22 is the same as the structure for installing the left rib 21 relatively symmetrical. When the connecting member 40 , the right rib 22 and the bottom plate 12 are assembled together, the first through hole 410 formed in the rib connecting portion 41 corresponds to the through hole 410 of the right rib 22 . The second through hole 420 located in the first bottom plate connecting portion 42 corresponds to the through hole of the step forming portion 122, and the third through hole 430 located in the second bottom plate connecting portion 43 corresponds to The through hole of the step forming part 122 .

Those skilled in the art should understand that, in other embodiments, one of the left rib 21 or the right rib 22 can also be fixed to the bottom plate 12, and the other rib can be In other embodiments, the distance between the left rib and the right rib 22 can also be changed in other ways, such as by providing rails and hydraulic systems to adjust the distance. The distance between the left rib 21 and the right rib 22; the left rib 21 and the right rib 22 can also be welded to the bottom plate 12 by welding. When the distance between the rib 21 and the right rib 22 is determined, the left rib 21 and the right rib 22 are disassembled and then welded; as long as the purpose of the present invention can be achieved, the left rib can be adjusted specifically The specific manner of the distance between the side 21 and the right rib 22 should not constitute a limitation to the present invention.

Further, the front rib 23 of the rib 20 is detachably installed between the front end portion of the left rib 21 and the front end portion of the right rib 22 through the fixing member 50 , and The positions of the front end portion of the left rib 21 and the front end portion of the right rib 22 on the front rib 23 can be changed, so that the space between the left rib 21 and the right rib 22 can be changed. The distance can be adjusted; accordingly, the rear rib 24 is detachably installed between the rear end of the left rib 21 and the rear end of the right rib 22 through the fixing member 50, And the position where the rear end of the left rib 21 and the rear end of the right rib 22 are fixedly installed on the rear rib 24 can be changed, so that the left rib 21 and the right rib 22 can be changed. The distance between 22 is adjustable.

Specifically, both ends of the front rib 23 of the rib 20 respectively have oblong through holes whose length direction is consistent with the lengthwise extending direction of the front rib 23 , and the front end of the left rib 21 The front end portion of the front rib 22 and the front rib 22 respectively have corresponding oblong through holes at the positions of the oblong through holes at both ends of the front rib 23 .

Correspondingly, both ends of the rear rib 24 of the rib 20 respectively have oblong through holes whose length direction is consistent with the lengthwise extending direction of the rear rib 23 . The end portion and the rear end portion of the right rib 22 have corresponding oblong through holes at positions corresponding to the oblong through holes at both ends of the rear rib 24 .

In this preferred embodiment, when the width of the prefabricated staircase needs to be increased, that is, when the distance between the left rib 21 and the right rib 22 needs to be increased, loosen the 21. The right rib 22 is fixed to the fixing member 50 of the bottom plate 12, and at the same time, loosen the fixing member 50 for fixing the front rib 23 and the rear rib 24 to the left rib 21 and all the remove the fixing member 50 of the right rib 22, and then slide the left rib 21 and the right rib 22 outward along the two groove walls 1221 of the step forming part 122, respectively, so as to increase the The distance between the left sidewall 21 and the right sidewall 22. After adjusting to a proper position, the left sidewall 21 and the right sidewall 22 are fixed to the bottom plate 12 by the fixing member 50 , and at the same time, the front sidewall 23 and the rear sidewall 24 are fixed It is fixed on the left sidewall 21 and the right sidewall 22 . Likewise, when the width of the prefabricated stairs needs to be reduced, the process is similar to the process of increasing the width of the prefabricated stairs, which will not be repeated here.

Further, the pouring workpiece 30 includes a set of pin and key positioning tooling 31, a set of hanging nail tooling 32 and a set of drip line tooling 33, the pin key positioning tooling 31, the hanging nail tooling 32 and the drip line. The tooling 33 is respectively set at the preset position of the rib 20, wherein the pin key positioning tool 31 is used to form an installation fixing pin on the upper and lower installation platforms of the prefabricated stairs; the hanging nail tooling 32 is used in the prefabricated stairs. The hoisting holes are formed to facilitate the hoisting of the prefabricated stairs; the drip line tooling 33 is used to provide the liquid material required for pouring in the process of manufacturing and forming the prefabricated stairs.

It should also be pointed out that, in order to be able to pour prefabricated stairs with different thicknesses or different lengths of rest platforms, the ribs 20 of various specifications can be prefabricated. It is only necessary to replace the corresponding rib 20 without replacing the entire base, so that the manufacturing cost of the mold can be effectively saved.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and alterations to these embodiments still fall within the protection scope of the present invention.

Claims (10)

1. a prefabricated staircase mould is characterized in that, comprises: a base, the base comprises a base frame assembly and a base plate provided on the base frame assembly, the base plate having a plurality of step forming parts for forming stair steps; and a rib, the rib includes a left rib and a right rib that can be detachably installed on the stepped surface of the bottom plate, and a front rib that can be detachably installed on the left and right rib A rib and a rear rib, the left rib, the right rib, the front rib and the right rib surround to form a pouring space for pouring a prefabricated staircase, and the step forming part is located on the bottom plate of the step surface. 2 . The prefabricated staircase mold of claim 1 , wherein the distance between the left rib and the right rib can be adjusted. 3 . 3 . The prefabricated stair mold according to claim 1 , wherein the lower end of the left rib has a left mounting portion adapted to the step forming portion of the bottom plate, and the left mounting portion has a The step forming part is adapted to the step. 4 . The prefabricated stair mold according to claim 3 , wherein the lower end of the right rib has a right mounting portion adapted to the step forming portion of the bottom plate, and the right mounting portion has a The step forming part is adapted to the step. 5. The prefabricated stair mold according to claim 2, wherein the prefabricated stair mold further comprises a plurality of connecting pieces, the connecting pieces comprising a rib connecting part, a first bottom plate connecting part and a second connecting part. Two bottom plate connecting parts, the flange connecting part is suitable for connecting to the outer side wall of the left flange or the right flange, the first bottom connecting part and the second bottom connecting part are respectively suitable for connecting to The two groove walls of the step forming part. 6 . The prefabricated stair mold according to claim 5 , wherein the prefabricated stair mold further comprises a plurality of fixing parts, and the fixing parts are used for fixing the rib connecting parts of the connecting parts to The outer side wall of the left rib or the right rib fixes the first bottom plate connecting part and the second bottom plate connecting part of the connecting piece to the wall of the measuring groove of the step forming part. 7 . The prefabricated stair mold according to claim 5 , wherein both ends of each groove wall of the two groove walls of the forming part respectively have a flat elongated through-hole that is consistent with the length direction of the groove wall. 8 . Through the positions of the through holes on the first bottom plate connecting part and the second bottom plate connecting part of the connecting piece and the oblong through holes on the groove wall to adjust the left rib or all the holes The right rib is fixed at the position of the bottom plate. 8. The prefabricated stair mold according to claim 7, wherein the through holes of the first bottom plate connecting part and the second bottom plate connecting part of the connecting piece are the same as the flat holes on the groove wall. The elongated through-hole corresponds to the oblong through-hole. 9. The prefabricated stair mold of claim 2, wherein the rib further comprises a front rib that can be detachably mounted on the front ends of the left rib and the front end of the right rib, and The rear rib can be detachably mounted on the rear end of the left rib and the rear end of the right rib. 10 . The prefabricated stair mold according to claim 1 , wherein the rib has ribs of various specifications for pouring prefabricated stairs with different thicknesses or different lengths of rest platforms. 11 .

Images