Connecting structure of non-dismantling formwork for building wall pouring

Abstract

A connecting structure of a non-dismantling formwork for building wall pouring comprises a first formwork, a second formwork, a first connecting piece and a second connecting piece, the first formwork and the second formwork are arranged in a front-back spaced mode, the first formwork and the second formwork are arranged in an up-down left-right piling mode, and the front end and the rear end of the first connecting piece are fixed to the first formwork and the second formwork respectively. A meshing part is arranged between every two vertically-adjacent first formworks or second formworks, every two vertically-adjacent first formworks or second formworks are connected through the meshing parts, the front ends of the second connecting pieces are fixed between every two horizontally-adjacent first formworks, and the rear ends of the second connecting pieces are fixed between every two horizontally-adjacent second formworks. According to the utility model, the plurality of Z-shaped brackets are designed, the stable connection of the first template and the second template is realized by virtue of the Z-shaped brackets, and the Z-shaped brackets are easy to process, can be formed by bending reinforcing steel bars and also can be formed by punching steel bars, can be processed on site, and are low in manufacturing cost, simple and economical.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a connection structure of a disassembly-free formwork for pouring a building wall. Background Art

[0002] Chinese patent document CN207228413U, published on April 13, 2018, discloses a formwork-free, cast-in-place decorative formwork. The formwork comprises an embedded layer with a decorative layer prefabricated on its outer surface. The formwork is characterized by embedded connectors evenly distributed within the embedded layer, and tie rods connecting adjacent connectors within the embedded layer to form a framework-like support skeleton. The upper and lower layers of this decorative formwork are connected by straight-insert bosses and open grooves, resulting in a weak connection. The outer and inner formwork bodies are connected by connectors, which include steel bars, angle steel, or steel trusses. These connectors require customization, are complex to manufacture, and are costly.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a connection structure for non-disassembly formwork for pouring building walls, which has a simple structure, high construction efficiency, convenient installation, easy later construction and strong practicality, so as to overcome the shortcomings of the existing technology.

[0005] A connection structure for a non-disassembly formwork for casting building walls, designed for this purpose, includes a first formwork and a second formwork spaced apart from each other in the front and rear directions, and a first connecting member and a second connecting member. The first formwork and the second formwork are stacked up and down and left and right, respectively, and the front and rear ends of the first connecting member are fixed to the first formwork and the second formwork, respectively. The structure is characterized in that a bite portion is provided between two adjacent first formworks or second formworks, and the two adjacent first formworks or second formworks are connected by the bite portion. The front end of the second connecting member is fixed between the two adjacent first formworks on the left and right, and the rear end of the second connecting member is fixed between the two adjacent second formworks on the left and right.

[0006] The first connecting member and the second connecting member include a connecting strip and positioning strips bent in opposite directions at both ends of the connecting strip, and a clamping angle is formed between the connecting strip and the positioning strip. A first clamping groove is provided on the first template and the second template. A second clamping groove is formed between the two adjacent first templates on the left and right and between the two adjacent second templates on the left and right. The clamping angle of the first connecting member is clamped into the first clamping groove, and the clamping angle of the second connecting member is clamped into the second clamping groove.

[0007] Baffles are respectively provided at the left and right ends of the first template and the second template, and positioning surfaces are provided on the baffles. The baffles of the two adjacent first templates on the left and right are interlocked and rest against each other through the positioning surfaces. The baffles of the two adjacent second templates on the left and right are interlocked and rest against each other through the positioning surfaces.

[0008] The bite portion includes a plurality of first bite teeth arranged at the upper ends of the first template and the second template, and a second bite tooth arranged at the lower ends of the first template and the second template. The first bite teeth and the second bite teeth are staggered with each other, and the two adjacent first templates or second templates above and below are connected by the mutual snapping of the first bite teeth and the second bite teeth.

[0009] The first engaging teeth include first and second engaging teeth that are spaced apart from each other left and right and staggered front and back. The second engaging teeth include third and fourth engaging teeth that are spaced apart from each other left and right and staggered front and back. The first and second engaging teeth are locked with the third and fourth engaging teeth.

[0010] The first mating teeth and the fourth mating teeth are arranged horizontally left and right and are located on the outside of the first template or the second template to form outer teeth. The second mating teeth and the third mating teeth are arranged horizontally left and right and are located on the inside of the first template or the second template to form inner teeth. The spacing between two adjacent first mating teeth is greater than the width of the second mating teeth, the spacing between two adjacent second mating teeth is greater than the width of the first mating teeth, the spacing between two adjacent third mating teeth is greater than the width of the fourth mating teeth, and the spacing between two adjacent fourth mating teeth is greater than the width of the third mating teeth.

[0011] The positioning strip is positioned between the outer teeth and the inner teeth; a first tooth gap is provided on the outer teeth, and a second tooth gap is provided on the inner teeth. The outer teeth of the upper first template or the second template are inserted into the first tooth gap of the lower first template or the second template, and the inner teeth of the upper first template or the second template are inserted into the second tooth gap of the lower first template or the second template.

[0012] A first slot is formed between the first matching teeth and the second matching teeth of the first template or the second template, and a second slot is formed between the first matching teeth and the second matching teeth of the two adjacent first templates or the two adjacent second templates.

[0013] A protrusion is extended from one end of the first matching tooth, and the outer side surface of the clamping angle corresponding to the protrusion abuts against the protrusion.

[0014] The number of the first mating teeth, the second mating teeth, the third mating teeth and the fourth mating teeth is n, the number of the first bite teeth and the second bite teeth is 2n; the number of the outer teeth is equal to the number of the inner teeth, and the number of the first bite teeth is equal to the number of the second bite teeth.

[0015] The utility model is designed with multiple Z-shaped brackets (i.e., the first connecting member and the second connecting member), which rely on the Z-shaped brackets to achieve a stable connection between the first template and the second template. The Z-shaped brackets are easy to process and can be formed by bending steel bars or by stamping steel bars. They are easy to process and can be processed on-site. The manufacturing cost is low and the system is simple and economical. The upper and lower layers of the disassembly-free templates are connected by bite teeth, and the connection strength is high and the connection is stable. The left and right pieces of disassembly-free templates are also connected by the Z-shaped brackets, which further simplifies the connection structure of the disassembly-free templates and facilitates the installation of the disassembly-free templates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure after the first template and the second template are connected in the first application example of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure after the first template and the second template are connected in the first application example of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the overall structure after the first template or the second template is stacked in the first application example of an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the assembly structure of two first templates or two second templates in the first application example of an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of the first template or the second template in the first application example of an embodiment of the present utility model.

[0021] Figure 6 This is a schematic diagram of the overall structure of the first template or the second template in another orientation in the first application example of an embodiment of the present utility model.

[0022] Figure 7 This is a cross-sectional view of the assembly structure of the first template and the second template in the first application example of an embodiment of the present utility model.

[0023] Figure 8 This is a schematic diagram of the assembly structure of the first template and the second template in the first application example of an embodiment of the present utility model.

[0024] Figure 9 This is a schematic diagram of the overall structure of the first connecting member or the second connecting member in the first application example of an embodiment of the present utility model.

[0025] Figure 10 This is a schematic diagram of the overall structure after the first template and the second template are connected in the second application example of an embodiment of the present utility model.

[0026] Figure 11This is a schematic diagram of the overall structure of the first template or the second template in the second application example of an embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See also Figures 1-11 The connection structure of the non-removal formwork for pouring the wall of the building includes a first formwork 1 and a second formwork 2 arranged at intervals from each other in front and back, and a first connecting member 3 and a second connecting member 4. The first formwork 1 and the second formwork 2 are stacked up and down and left and right respectively. The front and rear ends of the first connecting member 3 are respectively fixed on the first formwork 1 and the second formwork 2 to connect the first formwork 1 and the second formwork 2. A bite portion is provided between the two adjacent first formworks 1 or second formworks 2 above and below. The two adjacent first formworks 1 or second formworks 2 above and below are connected through the bite portion. The front end of the second connecting member 4 is fixed between the two adjacent first formworks 1 on the left and right, and the rear end of the second connecting member 4 is fixed between the two adjacent second formworks 2 on the left and right to connect the two adjacent first formworks 1 on the left and right and the two adjacent second formworks 2 on the left and right; the first formwork 1 and the second formwork 2 have the same structure, the first connecting member 3 and the second connecting member 4 are Z-shaped brackets, and the two have the same structure; after the first formwork 1 and the second formwork 2 are installed, cement can be poured between the two formworks.

[0029] The Z-shaped bracket is easy to process and can be formed by bending steel bars or by stamping steel bars. Considering cost and convenience, it is preferred to use steel bar bending, which can be flexibly processed and cut on site and can be processed and cut by the user.

[0030] The first connecting member 3 and the second connecting member 4 include a connecting strip 5 and positioning strips 6 bent in opposite directions at both ends of the connecting strip 5. A clamping angle 7 is formed between the connecting strip 5 and the positioning strip 6. A first clamping groove 8 is provided on the first template 1 and the second template 2. A second clamping groove 9 is formed between the two adjacent first templates 1 on the left and right and between the two adjacent second templates 2 on the left and right. The clamping angle 7 of the first connecting member 3 is clamped into the first clamping groove 8 so that the front and rear ends of the first connecting member 3 are respectively fixed on the first template 1 and the second template 2. The clamping angle 7 of the second connecting member 4 is clamped into the second clamping groove 9 so that the front end of the second connecting member 4 is fixed between the two adjacent first templates 1 on the left and right, and the rear end of the second connecting member 4 is fixed between the two adjacent second templates 2 on the left and right.

[0031] Baffles 14 are respectively provided at the left and right ends of the first template 1 and the second template 2. Positioning surfaces 21 are provided on the baffles 14. The baffles 14 of the two adjacent first templates 1 on the left and right are fitted together and lean against each other through the positioning surfaces 21. The baffles 14 of the two adjacent second templates 2 on the left and right are fitted together and lean against each other through the positioning surfaces 21. This makes the baffles 14 of the two adjacent first templates 1 on the left and right positioned and matched front and back, and the baffles 14 of the two adjacent second templates 2 on the left and right positioned and matched front and back, so that they can help each other to be fixed and block the mud.

[0032] The engaging portion includes a plurality of first engaging teeth 10 arranged at the upper ends of the first template 1 and the second template 2, and a second engaging tooth 11 arranged at the lower ends of the first template 1 and the second template 2. The first engaging teeth 10 and the second engaging teeth 11 are staggered with each other, and the upper and lower adjacent first templates 1 or second templates 2 are connected by the mutual snapping of the first engaging teeth 10 and the second engaging teeth 11, so that the upper and lower adjacent first templates 1 or second templates 2 are tightly locked and firmly connected.

[0033] The first engaging teeth 10 include a first engaging tooth 12 and a second engaging tooth 13 that are spaced apart from each other left and right and staggered front and back. The second engaging teeth 11 include a third engaging tooth 15 and a fourth engaging tooth 16 that are spaced apart from each other left and right and staggered front and back. The first engaging tooth, the second engaging tooth 13 and the third engaging tooth 15 and the fourth engaging tooth 16 are interlocked.

[0034] The first engaging teeth 10 include a first engaging tooth 12 and a second engaging tooth 13 that are spaced apart from each other left and right and staggered front and back. The second engaging teeth 11 include a third engaging tooth 15 and a fourth engaging tooth 16 that are spaced apart from each other left and right and staggered front and back. The first engaging tooth, the second engaging tooth 13 and the third engaging tooth 15 and the fourth engaging tooth 16 are interlocked.

[0035] A protrusion 17 is provided on the inner side of the fourth mating tooth 16, and a notch 19 is formed between the positioning strips 6 at the same end of the two adjacent left and right connecting strips 5. The protrusion 17 is inserted into the notch 19, making the connection between the first engaging tooth 10 and the second engaging tooth 11 more stable.

[0036] The protrusion 17 may not be provided on the inner side of the fourth mating tooth 16 .

[0037] The first mating teeth 12 and the fourth mating teeth 16 are arranged horizontally left and right and are located on the outside of the first template 1 or the second template 2, forming an outer layer of teeth. The second mating teeth 13 and the third mating teeth 15 are arranged horizontally left and right and are located on the inside of the first template 1 or the second template 2, forming an inner layer of teeth. The spacing between two adjacent first mating teeth 12 is greater than the width of the second mating teeth 13, the spacing between two adjacent second mating teeth 13 is greater than the width of the first mating teeth 12, the spacing between two adjacent third mating teeth 15 is greater than the width of the fourth mating teeth 16, and the spacing between two adjacent fourth mating teeth 16 is greater than the width of the third mating teeth 15.

[0038] A first slot 8 is formed between the first mating teeth 12 and the second mating teeth 13 of the first template 1 or the second template 2, and a second slot 9 is formed between the first mating teeth 12 and the second mating teeth 13 of the two adjacent first templates 1 or the two adjacent second templates 2.

[0039] The positioning strip 6 is positioned between the outer teeth and the inner teeth; a first tooth gap 22 is provided on the outer teeth, and a second tooth gap 23 is provided on the inner teeth. The outer teeth of the upper first template 1 or the second template 2 are inserted into the first tooth gap 22 of the lower first template 1 or the second template 2, and the inner teeth of the upper first template 1 or the second template 2 are inserted into the second tooth gap 23 of the lower first template 1 or the second template 2.

[0040] The inner side surface of the positioning strip 6 abuts against the outer side surface of the second mating tooth 13, and the outer side surface of the positioning strip 6 abuts against the inner side surface of the fourth mating tooth 16 to position the positioning strip 6 front and back. The positioning strip 6 is positioned up and down between the two adjacent first templates 1 or second templates 2.

[0041] The above structure ensures that the first connecting member 3 is firmly fixed on the first template 1 and the second template 2, and the second connecting member 43 is firmly fixed between the two adjacent first templates 1 on the left and right, and between the two adjacent second templates 2 on the left and right, thereby improving the stability of the connection between the first template 1 and the second template 2.

[0042] A protrusion 20 is extended from one end of the first mating tooth 12 , and the outer side surface of the clamping angle 7 of the first connecting member 3 corresponding to the protrusion 20 abuts against the protrusion 20 , making the fixation of the first connecting member 3 more stable.

[0043] The number of the first mating teeth 12, the second mating teeth 13, the third mating teeth 15 and the fourth mating teeth 16 is n, the number of the first bite teeth 10 and the second bite teeth 11 is 2n, the number of the outer teeth is equal to the number of the inner teeth, and the total is an even number. Multiple templates can be connected left and right, and the number of the first bite teeth 10 is equal to the number of the second bite teeth 11; Figure 5 As shown, the number of the first meshing teeth 10 and the second meshing teeth 11 is 6, n=3; or Figure 11As shown, the number of the first meshing teeth 10 and the second meshing teeth 11 is 8, n=4; when n is an even number, the upper and lower rows of non-disassembly templates are symmetrically arranged.

[0044] The lengths of the first mating tooth 12 , the second mating tooth 13 , the third mating tooth 15 and the fourth mating tooth 16 may be equal or unequal. If they are unequal, as long as the first mating tooth 12 , the second mating tooth 13 , the third mating tooth 15 and the fourth mating tooth 16 correspond to each other from top to bottom, they may be interlocked with each other.

[0045] Several grooves 18 are provided on the inner sides of the first template 1 and the second template 2 , which can reduce material and weight on the one hand.

[0046] When installing the removal-free formwork, first connect the lower layer of the removal-free formwork, and then buckle the upper layer of the removal-free formwork onto the lower layer of the removal-free formwork from top to bottom.

[0047] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a non-disassembly formwork for casting a building wall, comprising a first formwork (1) and a second formwork (2) spaced apart from each other, and a first connecting member (3) and a second connecting member (4), wherein the first formwork (1) and the second formwork (2) are stacked up and down and left and right, respectively, and the front and rear ends of the first connecting member (3) are fixed to the first formwork (1) and the second formwork (2), respectively, and characterized in that: An engaging portion is provided between two upper and lower adjacent first templates (1) or second templates (2), and the two upper and lower adjacent first templates (1) or second templates (2) are connected via the engaging portion; the front end of the second connecting member (4) is fixed between the two left and right adjacent first templates (1), and the rear end of the second connecting member (4) is fixed between the two left and right adjacent second templates (2).

2. The connection structure of the non-disassembly formwork for pouring building walls according to claim 1 is characterized in that: The first connecting member (3) and the second connecting member (4) comprise a connecting bar (5) and positioning bars (6) bent in opposite directions at both ends of the connecting bar (5). A clamping angle (7) is formed between the connecting bar (5) and the positioning bar (6). A first clamping groove (8) is provided on the first template (1) and the second template (2). A second clamping groove (9) is formed between two adjacent first templates (1) on the left and right and between two adjacent second templates (2) on the left and right. The clamping angle (7) of the first connecting member (3) is clamped into the first clamping groove (8), and the clamping angle (7) of the second connecting member (4) is clamped into the second clamping groove (9).

3. The connection structure of the non-disassembly formwork for pouring building walls according to claim 1 is characterized in that: Baffles (14) are respectively provided at the left and right ends of the first template (1) and the second template (2), and positioning surfaces (21) are provided on the baffles (14). The baffles (14) of the two adjacent first templates (1) on the left and right are interlocked and abutted against each other through the positioning surfaces (21), and the baffles (14) of the two adjacent second templates (2) on the left and right are interlocked and abutted against each other through the positioning surfaces (21).

4. The connection structure of the non-disassembly formwork for pouring building walls according to claim 2, characterized in that: The occlusal portion comprises a plurality of first occlusal teeth (10) arranged at the upper ends of the first template (1) and the second template (2), and second occlusal teeth (11) arranged at the lower ends of the first template (1) and the second template (2), wherein the first occlusal teeth (10) and the second occlusal teeth (11) are arranged in a staggered manner relative to each other, and two upper and lower adjacent first templates (1) or second templates (2) are connected by the mutual snapping of the first occlusal teeth (10) and the second occlusal teeth (11).

5. The connection structure of the non-disassembly formwork for pouring building walls according to claim 4, characterized in that: The first engaging teeth (10) include a first mating tooth (12) and a second mating tooth (13) which are spaced apart from each other left and right and staggered front and back. The second mating teeth (11) include a third mating tooth (15) and a fourth mating tooth (16) which are spaced apart from each other left and right and staggered front and back. The first mating tooth, the second mating tooth (13) and the third mating tooth (15) and the fourth mating tooth (16) are interlocked.

6. The connection structure of the non-disassembly formwork for pouring building walls according to claim 5, characterized in that: The first mating teeth (12) and the fourth mating teeth (16) are arranged horizontally on the left and right sides and are located on the outside of the first template (1) or the second template (2), forming outer teeth; the second mating teeth (13) and the third mating teeth (15) are arranged horizontally on the left and right sides and are located on the inside of the first template (1) or the second template (2), forming inner teeth; the spacing between two adjacent first mating teeth (12) is greater than the width of the second mating teeth (13), the spacing between two adjacent second mating teeth (13) is greater than the width of the first mating teeth (12), the spacing between two adjacent third mating teeth (15) is greater than the width of the fourth mating teeth (16), and the spacing between two adjacent fourth mating teeth (16) is greater than the width of the third mating teeth (15).

7. The connection structure of the non-disassembly formwork for pouring building walls according to claim 6, characterized in that: The positioning strip (6) is positioned between the outer teeth and the inner teeth; the outer teeth are provided with a first tooth gap (22), and the inner teeth are provided with a second tooth gap (23); the outer teeth of the upper first template (1) or the second template (2) are inserted into the first tooth gap (22) of the lower first template (1) or the second template (2); and the inner teeth of the upper first template (1) or the second template (2) are inserted into the second tooth gap (23) of the lower first template (1) or the second template (2).

8. The connection structure of the non-disassembly formwork for pouring building walls according to claim 5, characterized in that: A first clamping groove (8) is formed between the first mating tooth (12) and the second mating tooth (13) of the first template (1) or the second template (2), and a second clamping groove (9) is formed between the first mating tooth (12) and the second mating tooth (13) of two adjacent first templates (1) or two adjacent second templates (2).

9. The connection structure of the non-disassembly formwork for pouring building walls according to claim 5, characterized in that: A protrusion (20) is extended from one end of the first mating tooth (12), and the outer side surface of the clamping angle (7) corresponding to the protrusion (20) abuts against the protrusion (20).

10. The connection structure of the non-disassembly formwork for pouring building walls according to claim 6, characterized in that: The number of the first mating teeth (12), the second mating teeth (13), the third mating teeth (15) and the fourth mating teeth (16) is n, and the number of the first bite teeth (10) and the second bite teeth (11) is 2n; the number of the outer teeth is equal to the number of the inner teeth, and the number of the first bite teeth (10) is equal to the number of the second bite teeth (11).

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