Device for the positioning of formwork panels for the construction of a concrete wall

Abstract

Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall comprising a first flat sheet (3), a blind nut (4) configured to receive one end of a threaded bar (1); a first spacer (6), a cylindrical central body (10), a second spacer (12), a front plate (16) configured so that the threaded bar (1) comprises a second sheet (18) for the support of a second formwork panel (101); a tightening nut (19) and a handle (20) configured to facilitate the positioning and fixing of the tightening nut (19), with truncated cone-shaped bushings (11); the first and second stop have an elastic material lip (9) configured to receive a bushing (11) of the cylindrical central body (10).

Description

FIELD OF THE INVENTION

[0001] Object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that allows the position of the formwork from one side of the wall without the need to have access from both sides of the wall, thus facilitating the work of placing the formwork for subsequent concreting of the wall. The invention is applicable in the construction industry, both in civil works and in construction.TECHNICAL PROBLEM TO BE SOLVED AND BACKGROUND OF THE INVENTION

[0002] In the construction of concrete walls it is necessary to mount a structure that retains the concrete inside when the concreting of the wall is carried out, that is, when the concrete is poured in a fresh state until it acquires the consistency that allows it to maintain itself.

[0003] The formwork of the walls consist of two facing faces inside which the concrete is located, so that, with the systems known in the state of the art, it is necessary to access the two sides of the wall to position the elements that make up the formwork. This access to the two sides of the wall implies, in the event that the wall has a high height, the use of auxiliary means that allow reaching the position of positioning of the elements that make up the formwork.

[0004] The formwork is traditionally composed of a threaded bar that supports an end nut and a support piece, such that between the end nut and the support piece there is a formwork plate that is the one that will be in contact with the concrete, and such that the support piece is subsequently embedded in the wall itself once the concreting of the same has been carried out.

[0005] When it comes to reducing costs in the construction of walls, one way is to access it from only one side of the wall, thus avoiding the need to use auxiliary structures on both sides of the wall, which reduces the construction time and the cost associated with both the structure and time.

[0006] Similar devices are known that employ different connection systems between their elements without providing a watertight connection between the elements and the formwork panels as safe and simple as the one made by the subject device of the invention, such as the one reflected in EP3553253B1.DESCRIPTION OF INVENTION

[0007] An object of the invention is a device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall comprising a first flat sheet for the support of a formwork panel and a blind nut with a blind threaded housing configured to receive one end of the threaded bar; a first spacer comprising a cylindrical body with a first end configured to abut the first flat sheet with the threaded rod therein and a second end comprising a first stop; a cylindrical central body comprising a bushing at each end; a second spacer comprising a cylindrical body with a first end comprising a second stop; and a second end configured to abut on a front plate; the front plate is configured for the threaded bar to pass through a threaded central hole, such that the front plate comprises in addition to said threaded central hole a second flat sheet for supporting a second formwork panel; and a tightening nut configured to be threaded onto the threaded bar and contact the front plate and fix it in position, supported by a handle that is configured to facilitate the positioning and fixing of the tightening nut.

[0008] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall, the bushings have a truncated cone shape; the first stop comprises a elastic material lip that provides the second end with a truncated cone shape and is configured to receive a bushing of the cylindrical central body; the second stop comprises a elastic material lip that provides the first end with a truncated cone shape and is configured to receive a bushing of the cylindrical central body; such that a bushing is configured to be inserted into the first stop of the second end of the first spacer and provide a seal thanks to the elastic material lip and the complementary shapes of the first stop and the bushing, and such that a bushing is configured to be inserted into the second stop of the first end of the second spacer and provide a seal thanks to the elastic material lip and the complementary shapes of the first stop and the bushing.

[0009] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first flat sheet comprises a first retaining screw configured to be threaded on the first flat sheet.

[0010] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the front plate comprises a second retaining screw configured to be threaded on the second flat sheet.

[0011] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the handle comprises a central hole having a section with two parallel flat faces and two opposite curved faces, such that said section is configured to block the position of the handle on the threaded bar.

[0012] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the tightening nut comprises two polygonal shaped projections, the handle comprises two recesses complementary to the polygonal shape of the projections, such that the handle is configured to be fixed to the tightening nut preventing relative movement between the handle and the tightening nut.

[0013] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first spacer and the second spacer have a length that is equal to the width of a formwork panel.

[0014] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the cylindrical central body is made of PVC.

[0015] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the elastic material lip is made of an elastomeric polymer.

[0016] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first flat sheet comprises a support face between the first flat sheet and the blind nut that is a convex face.

[0017] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the second flat sheet comprises a support face between the second flat sheet and the tightening nut that is a convex face.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to complement the description that is being made and in order to help a better understanding of the features of the invention it is attached as an integral part of said description, figures wherein by way of illustration and not limitation, the following has been represented: Figure 1 shows a sectional view of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 2 shows a perspective view of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention without part of the components. Figure 3 shows a perspective view of the first flat sheet of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 4 shows a sectional view of a spacer of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 5 shows a sectional view of the cylindrical central body of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 6 shows a perspective view of the front plate of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 7 shows a perspective view of the tightening nut of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 8 shows a perspective view of the handle of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 9 shows a perspective view of the handle and tightening nut assembly of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 10 shows a perspective view of the handle and tightening nut assembly of the device with the threaded bar inside,

[0019] The list of numerical references used in the figures is set out below: 1.threaded bar, 3.first flat sheet, 4.blind nut, 5.blind threaded housing, 6.first spacer, 7.cylindrical body of the first spacer, 8.first stop, 9.elastic material lip of first stop, 10.cylindrical central body, 11.bushing, 12.second spacer 13.cylindrical body of the second spacer, 14.second stop, 15.elastic material lip of second stop, 16.front plate, 17.threaded central hole, 18.second sheet, 19.tightening nut, 20.handle, 21.formwork face, 22.formwork face support frame, 23.hole in the formwork face, 24.first retaining screw, 25.second retaining screw, 26.support face between the first flat sheet and the blind nut, 27.support face between the second flat sheet and the tightening nut, 28.central hole of the handle, 29.central handle hole flat face, 30.central handle hole curved face, 31.tightening nut projection, 32.handle recess, 100.first formwork panel, and 101.second formwork panel. DETAILED DESCRIPTION OF THE INVENTION

[0020] An object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that facilitates the positioning of the aforementioned formwork panels from the same side of the wall avoiding having to access from both sides of the wall.

[0021] The device for the positioning of formwork panels for the construction of a concrete wall object of the invention comprises a threaded bar (1) that comprises flat flanks, said threaded bar (1) is commercially known as dywidag ®< bar.

[0022] The device for the positioning of formwork panels for the construction of a concrete wall, around the threaded bar (1), comprises: a first flat sheet (3) for the support of a formwork panel (100); a blind nut (4) with a blind threaded housing (5) configured to receive one end of the threaded rod (1), so that said threaded rod (1) cannot pass through the blind threaded housing (5) at the opposite end to the input one; a first spacer (6) comprising a cylindrical body (7) with a first end configured to abut the first flat sheet (3) with the threaded rod (1) therein and a second end comprising a first stop (8) with a lip of elastic material (9) providing the second end with a frustum of a cone shape; a cylindrical central body (10), which is symmetrical and comprises a bushing (11) at each end; the bushings (11) have a truncated cone shape; such that a bushing (11) is configured to be inserted into the first stop (8) of the second end of the first spacer (6) with a seal that, thanks to the elastic material lip (9) and the complementary shapes of the first stop (8) and the bushing (11), is sealed; a second spacer (12) comprising a cylindrical body (13) with a first end comprising a second stop (14) with an elastic material lip (15) that provides the first end with a truncated cone shape to receive a bushing (11) of the cylindrical central body (10) and make a seal; and a second end configured to abut a front plate (16); the front plate (16) is configured so that the threaded rod (1) passes through a threaded central hole (17); furthermore the front plate (16) comprises in addition to said threaded central hole (17) a second flat sheet (18) for the support of a second formwork panel (101); and a tightening nut (19) configured to be screwed onto the threaded rod (1) and contact the front plate (16) and fix it in position, supported by a handle (20) that is configured to facilitate the placement and fixing of the tightening nut (19).

[0023] The first flat sheet (3) of the device for the positioning of formwork panels for the construction of a concrete wall comprises a first retaining screw (24) configured to be threaded on the first flat sheet (3) and ensure the dimension of the formwork panel (100).

[0024] The front plate (16) of the device for the positioning of formwork panels for the construction of a concrete wall comprises a second retaining screw (25) configured to be threaded on the second flat sheet (18) and ensure the dimension of the formwork panel (100).

[0025] In the first flat sheet (3) of the subject device of the invention, there is a support face (26) between the first flat sheet (3) and the blind nut (4), said support face (26) having a convex shape, so that the support of the blind nut (4) in the first flat sheet (3) is always complete, absorbing any possible irregularity of the components of the device.

[0026] In the device object of the invention, between the second flat sheet (18) and the tightening nut (19) a support face (27) is located such that said support face (27) is a convex-shaped face, so that the support of the tightening nut (19) on the second flat sheet (18) is always complete, absorbing any possible irregularity of the components of the device.

[0027] Both the first spacer (6) and the second spacer (12) pass through the formwork panels (100, 101) and have a length that is equal to the width of a formwork panel (100, 101).

[0028] The formwork panels (100, 101) comprise a formwork face (21) and a formwork face support frame (22), so that the formwork face (21) is directed towards the cylindrical central body (10) which is the one that is embedded in the concrete once the wall is concreted. In the preferred embodiment of the invention, the formwork face (21) is constituted by a phenolic panel.

[0029] The handle (20) is a piece comprising a central hole (28) having a section with two parallel flat faces (29) and two opposite curved faces (30), such that said section is configured to block the position of the handle (20) on the threaded bar (1) since, by matching the parallel flat faces (29) with the flat flanks of the threaded bar (1), the handle (20) can be moved on said threaded bar (1) and, by rotating the handle (20), block the position thereof at a point of the threaded bar (1).

[0030] The tightening nut (19) comprises two projections (31) of polygonal shape such that the handle (20) comprises two recesses (32) complementary to the polygonal shape of the projections (31) so that the handle (20) is fixed to the tightening nut (19) preventing relative movement between the handle (20) and the tightening nut (19) and thus fixing the position of the tightening nut (19) on the threaded bar (1).

[0031] The cylindrical central body (10) of the device for the positioning of formwork panels for the construction of a concrete wall, in an embodiment of the invention, is made of PVC and crosses the phenolic panel through a hole (23) thereof, so that the elastic material lip (9) is responsible for plugging the hole (23) of the phenolic through which the threaded bar (1) passes, thus making a seal.

[0032] The elastic material lip (9) of the spacers (6, 12) in the preferred embodiment of the invention is of an elastomeric polymer.

[0033] The bushings (11) of the device object of the invention are configured to be able to be removed from the cylindrical central body (10), so that, once the concreting of the wall has been carried out, they can be removed from the cylindrical central body (10) and only the aforementioned cylindrical central body (10) remains in the concrete.

[0034] When the formwork panels (100, 101) are positioned and fixed in their concreting position, the device for the positioning of formwork panels for the construction of a concrete wall object of the invention produces two simultaneous effects: it guarantees the width of the wall (25, 35 or 40 cm), and ensures the tightness of the joints inside the wall by means of an elastic element.

Examples

Embodiment Construction

[0020]An object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that facilitates the positioning of the aforementioned formwork panels from the same side of the wall avoiding having to access from both sides of the wall.

[0021]The device for the positioning of formwork panels for the construction of a concrete wall object of the invention comprises a threaded bar (1) that comprises flat flanks, said threaded bar (1) is commercially known as dywidag ®< bar.

[0022]The device for the positioning of formwork panels for the construction of a concrete wall, around the threaded bar (1), comprises:

a first flat sheet (3) for the support of a formwork panel (100); a blind nut (4) with a blind threaded housing (5) configured to receive one end of the threaded rod (1), so that said threaded rod (1) cannot pass through the blind threaded housing (5) at the opposite end to the input one; a first spacer (6) comprising a cylindrical body...

FIELD OF THE INVENTION

[0001] Object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that allows the position of the formwork from one side of the wall without the need to have access from both sides of the wall, thus facilitating the work of placing the formwork for subsequent concreting of the wall. The invention is applicable in the construction industry, both in civil works and in construction.TECHNICAL PROBLEM TO BE SOLVED AND BACKGROUND OF THE INVENTION

[0002] In the construction of concrete walls it is necessary to mount a structure that retains the concrete inside when the concreting of the wall is carried out, that is, when the concrete is poured in a fresh state until it acquires the consistency that allows it to maintain itself.

[0003] The formwork of the walls consist of two facing faces inside which the concrete is located, so that, with the systems known in the state of the art, it is necessary to access the two sides of the wall to position the elements that make up the formwork. This access to the two sides of the wall implies, in the event that the wall has a high height, the use of auxiliary means that allow reaching the position of positioning of the elements that make up the formwork.

[0004] The formwork is traditionally composed of a threaded bar that supports an end nut and a support piece, such that between the end nut and the support piece there is a formwork plate that is the one that will be in contact with the concrete, and such that the support piece is subsequently embedded in the wall itself once the concreting of the same has been carried out.

[0005] When it comes to reducing costs in the construction of walls, one way is to access it from only one side of the wall, thus avoiding the need to use auxiliary structures on both sides of the wall, which reduces the construction time and the cost associated with both the structure and time.

[0006] Similar devices are known that employ different connection systems between their elements without providing a watertight connection between the elements and the formwork panels as safe and simple as the one made by the subject device of the invention, such as the one reflected in EP3553253B1.DESCRIPTION OF INVENTION

[0007] An object of the invention is a device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall comprising a first flat sheet for the support of a formwork panel and a blind nut with a blind threaded housing configured to receive one end of the threaded bar; a first spacer comprising a cylindrical body with a first end configured to abut the first flat sheet with the threaded rod therein and a second end comprising a first stop; a cylindrical central body comprising a bushing at each end; a second spacer comprising a cylindrical body with a first end comprising a second stop; and a second end configured to abut on a front plate; the front plate is configured for the threaded bar to pass through a threaded central hole, such that the front plate comprises in addition to said threaded central hole a second flat sheet for supporting a second formwork panel; and a tightening nut configured to be threaded onto the threaded bar and contact the front plate and fix it in position, supported by a handle that is configured to facilitate the positioning and fixing of the tightening nut.

[0008] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall, the bushings have a truncated cone shape; the first stop comprises a elastic material lip that provides the second end with a truncated cone shape and is configured to receive a bushing of the cylindrical central body; the second stop comprises a elastic material lip that provides the first end with a truncated cone shape and is configured to receive a bushing of the cylindrical central body; such that a bushing is configured to be inserted into the first stop of the second end of the first spacer and provide a seal thanks to the elastic material lip and the complementary shapes of the first stop and the bushing, and such that a bushing is configured to be inserted into the second stop of the first end of the second spacer and provide a seal thanks to the elastic material lip and the complementary shapes of the first stop and the bushing.

[0009] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first flat sheet comprises a first retaining screw configured to be threaded on the first flat sheet.

[0010] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the front plate comprises a second retaining screw configured to be threaded on the second flat sheet.

[0011] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the handle comprises a central hole having a section with two parallel flat faces and two opposite curved faces, such that said section is configured to block the position of the handle on the threaded bar.

[0012] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the tightening nut comprises two polygonal shaped projections, the handle comprises two recesses complementary to the polygonal shape of the projections, such that the handle is configured to be fixed to the tightening nut preventing relative movement between the handle and the tightening nut.

[0013] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first spacer and the second spacer have a length that is equal to the width of a formwork panel.

[0014] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the cylindrical central body is made of PVC.

[0015] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the elastic material lip is made of an elastomeric polymer.

[0016] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the first flat sheet comprises a support face between the first flat sheet and the blind nut that is a convex face.

[0017] In the device for the positioning of a first formwork panel and a second formwork panel for the construction of a concrete wall object of the invention, the second flat sheet comprises a support face between the second flat sheet and the tightening nut that is a convex face.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to complement the description that is being made and in order to help a better understanding of the features of the invention it is attached as an integral part of said description, figures wherein by way of illustration and not limitation, the following has been represented: Figure 1 shows a sectional view of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 2 shows a perspective view of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention without part of the components. Figure 3 shows a perspective view of the first flat sheet of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 4 shows a sectional view of a spacer of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 5 shows a sectional view of the cylindrical central body of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 6 shows a perspective view of the front plate of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 7 shows a perspective view of the tightening nut of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 8 shows a perspective view of the handle of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 9 shows a perspective view of the handle and tightening nut assembly of the device for the positioning of formwork panels for the construction of a concrete wall object of the invention. Figure 10 shows a perspective view of the handle and tightening nut assembly of the device with the threaded bar inside,

[0019] The list of numerical references used in the figures is set out below: 1.threaded bar, 3.first flat sheet, 4.blind nut, 5.blind threaded housing, 6.first spacer, 7.cylindrical body of the first spacer, 8.first stop, 9.elastic material lip of first stop, 10.cylindrical central body, 11.bushing, 12.second spacer 13.cylindrical body of the second spacer, 14.second stop, 15.elastic material lip of second stop, 16.front plate, 17.threaded central hole, 18.second sheet, 19.tightening nut, 20.handle, 21.formwork face, 22.formwork face support frame, 23.hole in the formwork face, 24.first retaining screw, 25.second retaining screw, 26.support face between the first flat sheet and the blind nut, 27.support face between the second flat sheet and the tightening nut, 28.central hole of the handle, 29.central handle hole flat face, 30.central handle hole curved face, 31.tightening nut projection, 32.handle recess, 100.first formwork panel, and 101.second formwork panel. DETAILED DESCRIPTION OF THE INVENTION

[0020] An object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that facilitates the positioning of the aforementioned formwork panels from the same side of the wall avoiding having to access from both sides of the wall.

[0021] The device for the positioning of formwork panels for the construction of a concrete wall object of the invention comprises a threaded bar (1) that comprises flat flanks, said threaded bar (1) is commercially known as dywidag ®< bar.

[0022] The device for the positioning of formwork panels for the construction of a concrete wall, around the threaded bar (1), comprises: a first flat sheet (3) for the support of a formwork panel (100); a blind nut (4) with a blind threaded housing (5) configured to receive one end of the threaded rod (1), so that said threaded rod (1) cannot pass through the blind threaded housing (5) at the opposite end to the input one; a first spacer (6) comprising a cylindrical body (7) with a first end configured to abut the first flat sheet (3) with the threaded rod (1) therein and a second end comprising a first stop (8) with a lip of elastic material (9) providing the second end with a frustum of a cone shape; a cylindrical central body (10), which is symmetrical and comprises a bushing (11) at each end; the bushings (11) have a truncated cone shape; such that a bushing (11) is configured to be inserted into the first stop (8) of the second end of the first spacer (6) with a seal that, thanks to the elastic material lip (9) and the complementary shapes of the first stop (8) and the bushing (11), is sealed; a second spacer (12) comprising a cylindrical body (13) with a first end comprising a second stop (14) with an elastic material lip (15) that provides the first end with a truncated cone shape to receive a bushing (11) of the cylindrical central body (10) and make a seal; and a second end configured to abut a front plate (16); the front plate (16) is configured so that the threaded rod (1) passes through a threaded central hole (17); furthermore the front plate (16) comprises in addition to said threaded central hole (17) a second flat sheet (18) for the support of a second formwork panel (101); and a tightening nut (19) configured to be screwed onto the threaded rod (1) and contact the front plate (16) and fix it in position, supported by a handle (20) that is configured to facilitate the placement and fixing of the tightening nut (19).

[0023] The first flat sheet (3) of the device for the positioning of formwork panels for the construction of a concrete wall comprises a first retaining screw (24) configured to be threaded on the first flat sheet (3) and ensure the dimension of the formwork panel (100).

[0024] The front plate (16) of the device for the positioning of formwork panels for the construction of a concrete wall comprises a second retaining screw (25) configured to be threaded on the second flat sheet (18) and ensure the dimension of the formwork panel (100).

[0025] In the first flat sheet (3) of the subject device of the invention, there is a support face (26) between the first flat sheet (3) and the blind nut (4), said support face (26) having a convex shape, so that the support of the blind nut (4) in the first flat sheet (3) is always complete, absorbing any possible irregularity of the components of the device.

[0026] In the device object of the invention, between the second flat sheet (18) and the tightening nut (19) a support face (27) is located such that said support face (27) is a convex-shaped face, so that the support of the tightening nut (19) on the second flat sheet (18) is always complete, absorbing any possible irregularity of the components of the device.

[0027] Both the first spacer (6) and the second spacer (12) pass through the formwork panels (100, 101) and have a length that is equal to the width of a formwork panel (100, 101).

[0028] The formwork panels (100, 101) comprise a formwork face (21) and a formwork face support frame (22), so that the formwork face (21) is directed towards the cylindrical central body (10) which is the one that is embedded in the concrete once the wall is concreted. In the preferred embodiment of the invention, the formwork face (21) is constituted by a phenolic panel.

[0029] The handle (20) is a piece comprising a central hole (28) having a section with two parallel flat faces (29) and two opposite curved faces (30), such that said section is configured to block the position of the handle (20) on the threaded bar (1) since, by matching the parallel flat faces (29) with the flat flanks of the threaded bar (1), the handle (20) can be moved on said threaded bar (1) and, by rotating the handle (20), block the position thereof at a point of the threaded bar (1).

[0030] The tightening nut (19) comprises two projections (31) of polygonal shape such that the handle (20) comprises two recesses (32) complementary to the polygonal shape of the projections (31) so that the handle (20) is fixed to the tightening nut (19) preventing relative movement between the handle (20) and the tightening nut (19) and thus fixing the position of the tightening nut (19) on the threaded bar (1).

[0031] The cylindrical central body (10) of the device for the positioning of formwork panels for the construction of a concrete wall, in an embodiment of the invention, is made of PVC and crosses the phenolic panel through a hole (23) thereof, so that the elastic material lip (9) is responsible for plugging the hole (23) of the phenolic through which the threaded bar (1) passes, thus making a seal.

[0032] The elastic material lip (9) of the spacers (6, 12) in the preferred embodiment of the invention is of an elastomeric polymer.

[0033] The bushings (11) of the device object of the invention are configured to be able to be removed from the cylindrical central body (10), so that, once the concreting of the wall has been carried out, they can be removed from the cylindrical central body (10) and only the aforementioned cylindrical central body (10) remains in the concrete.

[0034] When the formwork panels (100, 101) are positioned and fixed in their concreting position, the device for the positioning of formwork panels for the construction of a concrete wall object of the invention produces two simultaneous effects: it guarantees the width of the wall (25, 35 or 40 cm), and ensures the tightness of the joints inside the wall by means of an elastic element.

Examples

Embodiment Construction

[0020]An object of the invention is a device for the positioning of formwork panels for the construction of a concrete wall that facilitates the positioning of the aforementioned formwork panels from the same side of the wall avoiding having to access from both sides of the wall.

[0021]The device for the positioning of formwork panels for the construction of a concrete wall object of the invention comprises a threaded bar (1) that comprises flat flanks, said threaded bar (1) is commercially known as dywidag ®< bar.

[0022]The device for the positioning of formwork panels for the construction of a concrete wall, around the threaded bar (1), comprises:

a first flat sheet (3) for the support of a formwork panel (100); a blind nut (4) with a blind threaded housing (5) configured to receive one end of the threaded rod (1), so that said threaded rod (1) cannot pass through the blind threaded housing (5) at the opposite end to the input one; a first spacer (6) comprising a cylindrical body...

Claims

1. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall comprising: - a first flat sheet (3) for the support of a formwork panel (100), - a blind nut (4) with a blind threaded housing (5) configured to receive one end of a threaded rod (1); - a first spacer (6) comprising a cylindrical body (7) with a first end configured to abut the first flat sheet (3) with the threaded rod (1) therein and a second end comprising a first stop (8); - a cylindrical central body (10) comprising a bushing (11) at each end; - a second spacer (12) comprising a cylindrical body (13) with a first end comprising a second stop (14); and a second end configured to abut a front plate (16); - the front plate (16) is configured so that the threaded bar (1) passes through a threaded central hole (17), such that the front plate (16) comprises in addition to said threaded central hole (17) a second sheet (18) for supporting a second formwork panel (101); - a tightening nut (19) configured to be threaded onto the threaded bar (1) and contact the front plate (16) and fix it in position, supported by a handle (20) that is configured to facilitate the positioning and fixing of the tightening nut (19); characterized in that - the bushings (11) have a truncated cone shape; - the first stop (8) comprises a lip of elastic material (9) that provides the second end with a truncated cone shape and is configured to receive a bushing (11) of the cylindrical central body (10); - the second stop (14) comprises an elastic material lip (15) that provides the first end with a truncated cone shape and is configured to receive a bushing (11) of the cylindrical central body (10); - such that a bushing (11) is configured to be inserted into the first stop (8) of the second end of the first spacer (6); and - such that a bushing (11) is configured to be inserted into the second stop (14) of the first end of the second spacer (12).

2. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to claim 1, characterized in that the first flat sheet (3) comprises a first retaining screw (24) configured to be threaded on the first flat sheet (3).

3. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 2, characterized in that the front plate (16) comprises a second retaining screw (25) configured to be threaded on the second flat sheet (18).

4. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 3, characterized in that the handle (20) comprises a central hole (28) having a section with two parallel flat faces (29) and two opposite curved faces (30), such that said section is configured to block the position of the handle (20) on the threaded bar (1).

5. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 4, characterized in that: - the tightening nut (19) comprises two polygonal-shaped projections (31); - the handle (20) comprises two recesses (32) complementary to the polygonal shape of the projections (31); such that the handle (20) is configured to be fixed to the tightening nut (19) preventing relative movement between the handle (19) and the tightening nut (20).

6. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 5, characterized in that the first spacer (6) and the second spacer (12) have a length that is equal to the width of a formwork panel (100, 101).

7. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any one of claims 1 to 6, characterized in that the cylindrical central body (10) is made of PVC.

8. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 7, characterized in that the lip of elastic material (9) is made of an elastomeric polymer.

9. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 8, characterized in that the first flat sheet (3) comprises a support face (26) between the first flat sheet (3) and the blind nut (4) that is a convex face.

10. Device for the positioning of a first formwork panel (100) and a second formwork panel (101) for the construction of a concrete wall, according to any of claims 1 to 9, characterized in that the second flat sheet (18) comprises a support face (27) between the second flat sheet (18) and the tightening nut (19) that is a convex face.

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