Fixing device and fixing method of construction formwork at wall corner

Abstract

The present invention provides a fixing device and method for a construction formwork at a wall corner. The fixing device is used to assist in fixing the inner and outer wall formwork at a wall corner. The inner wall formwork has first and second inner side surfaces set at an angle, and the outer wall formwork has first and second outer side surfaces set at an angle. The fixing device includes an inner and outer wall frame and a connecting assembly. The inner wall frame includes first and second inner fittings set at an angle; the outer wall frame is configured to correspond to the inner wall frame and includes first and second outer fittings set at an angle; the connecting assembly is configured to penetrate the inner wall formwork and the outer wall formwork and detachably connect the inner wall frame and the outer wall frame, so that the first and second inner fittings are respectively pressed against the first and second inner side surfaces, and the first and second outer fittings are respectively pressed against the first and second outer side surfaces. The fixing device can fix construction formwork at a wall corner having a non-perpendicular angle.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a fixing device and a fixing method for a construction template at a wall corner. Background Art

[0002] With the development of the construction industry, people have higher and higher requirements for architectural styles. Ordinary grid layouts are gradually unable to meet aesthetic needs, and special-shaped walls (with non-right-angle corners) are becoming more and more common. It is difficult to fix the construction formwork at the corners of special-shaped walls. The non-right-angle corners of special-shaped walls pose a huge challenge to the construction process. If the wall formwork cannot be fixed, it will cause many problems such as mold expansion, wall tilting, and concrete quality defects. How to ensure the fixation of the wall formwork of special-shaped walls has received widespread attention from construction workers. At present, the conventional solution to the construction problem at the corners of the wall is usually to use long-distance pulling of wire ropes. However, using this solution for construction has problems such as construction difficulties, troublesome disassembly, long turnover cycle, and the need for a large amount of steel, which increases project costs. In addition, this solution cannot solve the problem of wall pulling at non-right-angle corners. Summary of the Invention

[0003] The main purpose of the present invention is to provide a fixing device for a construction template at a wall corner, so as to be able to fix the construction template at a wall corner with a non-right angle.

[0004] The present invention provides a fixing device for a construction formwork at a wall corner, which is used to assist in fixing an inner wall formwork and an outer wall formwork during the construction process of the wall corner. The inner wall formwork has a first inner side surface and a second inner side surface set at an angle, and the outer wall formwork has a first outer side surface and a second outer side surface set at an angle, comprising:

[0005] The inner wall frame is used to cooperate with the inner wall template, and the inner wall frame includes a first inner matching piece and a second inner matching piece arranged at an angle;

[0006] an outer wall frame, configured to correspond to the inner wall frame and to cooperate with the outer wall formwork, the outer wall frame comprising a first outer fitting and a second outer fitting arranged at an angle; and

[0007] A connecting component is used to pass through the inner wall formwork and the outer wall formwork, and to detachably connect the inner wall frame and the outer wall frame, so that the first inner fitting part and the second inner fitting part are pressed on the first inner side surface and the second inner side surface respectively, and the first outer fitting part and the second outer fitting part are pressed on the first outer side surface and the second outer side surface respectively.

[0008] In one embodiment, the angles of the first inner fitting member and the second inner fitting member are adjustable, and the angles of the first outer fitting member and the second outer fitting member are adjustable.

[0009] In one embodiment, the wall inner frame further includes an inner connecting member, the inner connecting member connecting the first inner fitting member and the second inner fitting member, and the inner connecting member is used to connect to the connecting assembly;

[0010] The first inner fitting member is rotatably connected to the second inner fitting member, two ends of the inner connecting member are rotatably connected to the first inner fitting member and the second inner fitting member respectively, and the length of the inner connecting member is adjustable.

[0011] In one embodiment, the inner connecting part includes a first connecting portion rotatably connected to the first inner fitting, a second connecting portion rotatably connected to the second inner fitting, an intermediate connecting part whose two ends are respectively plugged into the first connecting portion and the second connecting portion, and a first inner pin and a second inner pin, the first connecting part has a plurality of first fixing holes arranged at intervals along the length direction of the inner connecting part, the second connecting part has a plurality of second fixing holes arranged at intervals along the length direction of the inner connecting part, and the intermediate connecting part has a plurality of intermediate fixing holes arranged at intervals along the length direction of the inner connecting part, the first inner pin cooperates with one of the first fixing holes and one of the intermediate fixing holes to fix the first connecting part and the intermediate connecting part, and the second inner pin cooperates with one of the second fixing holes and one of the intermediate fixing holes to fix the second connecting part and the intermediate connecting part.

[0012] In one embodiment, the length of the first inner fitting member is the same as the length of the second inner fitting member.

[0013] In one embodiment, the inner connecting member, the first inner fitting member, and the second inner fitting member all comprise square tubes.

[0014] In one embodiment, there are multiple connecting assemblies, and the multiple connecting assemblies are arranged at intervals along the extension direction of the inner connecting member.

[0015] In one embodiment, the wall outer frame further includes a first support member, an external connection member, and a second support member connected in sequence, wherein the first support member is connected to an end of the first external fitting member away from the second external fitting member, and the second support member is connected to an end of the second external fitting member away from the first external fitting member, and the external connection member is used to connect to the connection assembly;

[0016] In which, the wall outer frame also includes a third support member, the first external fitting member is rotatably connected to the second external fitting member, the two ends of the first support member are rotatably connected to the first external fitting member and the external connecting member respectively, the two ends of the second support member are rotatably connected to the second external fitting member and the external connecting member respectively, the third support member spans the external connecting member, one end is connected to the intersection of the first external fitting member and the second external fitting member, and the length of the third support member located between the intersection of the first external fitting member and the second external fitting member and the external connecting member is adjustable.

[0017] In one embodiment, the wall outer frame further includes an external pin, the third support member has a plurality of external fixing holes spaced apart along the length direction of the third support member, and the external pin cooperates with one of the external fixing holes to fixedly connect the third support member and the external connecting member.

[0018] In one embodiment, the length of the first outer fitting member is the same as the length of the second outer fitting member, the length of the first support member is the same as the length of the second support member, and the third support member spans across the middle of the outer connecting member.

[0019] In one embodiment, there are multiple connecting assemblies, and the multiple connecting assemblies are arranged at intervals along the extension direction of the external connecting member.

[0020] In one embodiment, there are two inner wall frames, which are arranged at intervals in the up and down directions; there are two outer wall frames, which are arranged at intervals in the up and down directions; and the two outer wall frames are respectively arranged corresponding to the two inner wall frames, one end of the connecting component is connected to the two inner wall frames at the same time, and the other end of the connecting component is connected to the two outer wall frames at the same time.

[0021] In one embodiment, the connecting assembly includes an inner U-shaped block, an outer U-shaped block, a tensioning screw, an inner nut and an outer nut, the inner U-shaped block is used to be clamped on one end of the two inner wall frames away from the outer wall frames, and the outer U-shaped block is used to be clamped on one end of the two outer wall frames away from the inner wall frames, the tensioning screw is used to pass through the inner U-shaped block, the inner wall formwork, the outer wall formwork and the outer U-shaped block, the inner nut cooperates with the tensioning screw to fix the inner U-shaped block to the two inner wall frames, and the outer nut cooperates with the tensioning screw to fix the outer U-shaped block to the two outer wall frames, so that the first inner fitting and the second inner fitting are respectively pressed on the first inner side surface and the second inner side surface, and the first outer fitting and the second outer fitting are respectively pressed on the first outer side surface and the second outer side surface.

[0022] The present invention also provides a method for fixing a construction template at a wall corner, comprising the following steps:

[0023] Providing a fixing device for the above-mentioned construction template at the wall corner; and

[0024] The inner wall formwork and the outer wall formwork of the corner of the construction wall are assisted by fixing devices, so that the first inner fitting part and the second inner fitting part are pressed on the first inner side surface and the second inner side surface respectively, and the first outer fitting part and the second outer fitting part are pressed on the first outer side surface and the second outer side surface respectively. When there are multiple fixing devices, repeat this step until the multiple fixing devices are assembled and arranged at intervals in the upper and lower directions.

[0025] In one embodiment, before the step of using a fixing device to assist in fixing the inner wall formwork and the outer wall formwork of the construction wall corner, the following steps are also included:

[0026] Calculating and determining the length of the inner connecting member according to the angle of the wall corner, and calculating and determining the length between an end of the first outer fitting member away from the second outer fitting member and an end of the second outer fitting member away from the first outer fitting member according to the angle of the wall corner; and

[0027] Adjust the length of the inner connecting piece to a certain length so that the angle between the first inner fitting piece and the second inner fitting piece matches the angle between the first inner side surface and the second inner side surface, and adjust the length between the end of the first outer fitting piece away from the second outer fitting piece and the end of the second outer fitting piece away from the first outer fitting piece to a certain length so that the angle between the first outer fitting piece and the second outer fitting piece matches the angle between the first outer side surface and the second outer side surface.

[0028] In one embodiment, the step of using a fixing device to assist in fixing the inner wall formwork and the outer wall formwork of the construction wall corner includes the following steps:

[0029] Assemble a tension screw on the inner wall formwork and the outer wall formwork;

[0030] Place two inner wall frames on the inner wall formwork at the corner of the construction wall, and place two outer wall frames on the outer wall formwork at the corner of the construction wall. The two inner wall frames and the two outer wall frames are distributed on the upper and lower sides of the tension screws; and

[0031] An inner U-shaped block and an outer U-shaped block are respectively clamped at the positions corresponding to the inner frame of the wall and the tension screws and the positions corresponding to the outer frame of the wall and the tension screws, and inner nuts and outer nuts are respectively assembled at both ends of the tension screws, so that the first inner fitting and the second inner fitting are respectively pressed on the first inner side surface and the second inner side surface, and the first outer fitting and the second outer fitting are respectively pressed on the first outer side surface and the second outer side surface, wherein, when the fixing device includes multiple connecting components, the steps of assembling the connecting components are repeated until the multiple connecting components are assembled.

[0032] The aforementioned fixing device can assist in securing the inner and outer wall formwork at a wall corner, thereby ensuring that the inner and outer wall formwork are securely fixed, thereby preventing problems such as formwork expansion, wall tilting, and concrete quality defects. Furthermore, the aforementioned fixing device has no particular requirements for the angle of the wall corner and is particularly suitable for assisting in securing the inner and outer wall formwork at non-perpendicular corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a top view of a fixing device for a construction template at a wall corner according to an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 A perspective view of a fixing device for a construction template at a wall corner shown;

[0035] Figure 3 yes Figure 1 A three-dimensional view of the fixing device of the construction template at the wall corner shown in another perspective;

[0036] Figure 4 This is a flow chart of a method for fixing a construction template at a wall corner according to one embodiment of the present invention;

[0037] Figure 5 yes Figure 4 Flowchart of the steps between step S810 and step S820 of the method for fixing the construction template at the wall corner shown;

[0038] Figure 6 yes Figure 4 Flowchart showing the specific steps of step S820 of the method for fixing the construction template at the corner of the wall;

[0039] Figure 7 The present invention is a flowchart of a method for constructing a wall corner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0041] like Figure 1-Figure 3 As shown, a fixing device 10 for a construction formwork for a wall corner is provided in accordance with an embodiment of the present invention. The fixing device 10 is used to assist in fixing an inner wall formwork 30 and an outer wall formwork 40 during the construction process of the wall corner 20. The inner wall formwork 30 has a first inner side surface 32 and a second inner side surface 34 arranged at an angle. The outer wall formwork 40 has a first outer side surface 42 and a second outer side surface 44 arranged at an angle. It should be noted that, under normal circumstances, the angle between the first inner side surface 32 and the second inner side surface 34 is substantially the same as the angle between the first outer side surface 42 and the second outer side surface 44.

[0042] The fixing device 10 includes an inner wall frame 500, an outer wall frame 600, and a connecting assembly 700. The inner wall frame 500 is configured to mate with the inner wall form 30. The inner wall frame 500 includes a first inner fitting member 510 and a second inner fitting member 520, which are arranged at an angle. The outer wall frame 600 is configured to correspond to the inner wall frame 500 and mate with the outer wall form 40. The outer wall frame 600 includes a first outer fitting member 610 and a second outer fitting member 620, which are arranged at an angle. The connecting assembly 700 is configured to penetrate the inner wall form 30 and the outer wall form 40 and detachably connect the inner wall frame 500 and the outer wall frame 600, so that the first inner fitting member 510 and the second inner fitting member 520 are respectively pressed against the first inner side surface 32 and the second inner side surface 34, and the first outer fitting member 610 and the second outer fitting member 620 are respectively pressed against the first outer side surface 42 and the second outer side surface 44.

[0043] When the above-mentioned fixing device 10 is used to assist in fixing the inner wall formwork 30 and the outer wall formwork 40 of the construction wall corner 20, the angle between the first inner fitting part 510 and the second inner fitting part 520 can be matched with the angle between the first inner side surface 32 and the second inner side surface 34, and the angle between the first outer fitting part 610 and the second outer fitting part 620 can be matched with the angle between the first outer side surface 42 and the second outer side surface 44. Then, the connecting component 700 is used to connect the inner wall frame 500 and the outer wall frame 600 placed at the inner wall formwork 30 and the outer wall formwork 40 respectively, so that the first inner fitting part 510 and the second inner fitting part 520 are pressed on the first inner side surface 32 and the second inner side surface 34 respectively, and the first outer fitting part 610 and the second outer fitting part 620 are pressed on the first outer side surface 42 and the second outer side surface 44 respectively.

[0044] At least one fixing device 10 can be provided according to the height of the inner wall formwork 30 and the outer wall formwork 40. When there are multiple fixing devices 10, the multiple fixing devices 10 are spaced apart in the vertical direction on the inner wall formwork 30 and the outer wall formwork 40. After using at least one such fixing device 10 to assist in fixing the inner wall formwork 30 and the outer wall formwork 40 of the wall corner 20, concrete can be poured between the inner wall formwork 30 and the outer wall formwork 40. When the concrete hardens to a predetermined level, the connection between the inner wall frame 500 and the connecting assembly 700 and the connection between the outer wall frame 600 and the connecting assembly 700 can be released. This not only facilitates the subsequent removal of the inner wall formwork 30 and the outer wall formwork 40 from the wall corner 20, but also allows the inner wall frame 500 and the outer wall frame 600 to be removed for subsequent use.

[0045] The fixing device 10 can assist in securing the inner wall formwork 30 and the outer wall formwork 40 at the corner 20 of the wall under construction, thereby ensuring that the inner wall formwork 30 and the outer wall formwork 40 at the corner 20 are securely fixed, thereby preventing problems such as formwork expansion, wall tilting, and concrete quality defects. Furthermore, the fixing device 10 has no special requirements for the angle of the corner 20 and is particularly suitable for assisting in securing the inner wall formwork 30 and the outer wall formwork 40 at non-perpendicular corners 20.

[0046] In this embodiment, the wall corner 20 is the corner of a shear wall. It is understood that in other embodiments, the wall corner 20 can be the corner of any wall.

[0047] In this embodiment, the angles of the first inner fitting member 510 and the second inner fitting member 520 are adjustable. Thus, when using the fixing device 10, the angle between the first inner fitting member 510 and the second inner fitting member 520 can be adjusted to match the angle between the first inner side surface 32 and the second inner side surface 34. This allows the wall inner frame 500 to be used in the construction of wall corners 20 at various angles, thus providing a wide range of applications. It is understood that in other embodiments, the angles of the first inner fitting member 510 and the second inner fitting member 520 may not be adjustable. Thus, when using the fixing device 10, the first inner fitting member 510 and the second inner fitting member 520 may be selected to match the angle between the first inner side surface 32 and the second inner side surface 34.

[0048] In this embodiment, the angles of the first and second outer fittings 610, 620 are adjustable. Thus, when using the fixture 10, the angle between the first and second outer fittings 610, 620 can be adjusted to match the angle between the first and second outer sides 42, 44. This allows the wall exterior frame 600 to be used in the construction of wall corners 20 at various angles, thus providing a wide range of applications. It is understood that in other embodiments, the angles of the first and second outer fittings 610, 620 may not be adjustable. Thus, when using the fixture 10, the first and second outer fittings 610, 620 may be selected to match the angle between the first and second outer sides 42, 44.

[0049] In this embodiment, the wall inner frame 500 further includes an inner connector 530. The inner connector 530 connects the first inner fitting member 510 and the second inner fitting member 520. The inner connector 530 is configured to connect to the connecting assembly 700. This greatly facilitates the connection between the wall inner frame 500 and the connecting assembly 700.

[0050] In this embodiment, the inner wall frame 500 is triangular in shape. This allows for a simple structure. It is understood that in other embodiments, the inner wall frame 500 may also be A-shaped. Alternatively, the inner wall frame 500 may be a pentagon or hexagon with at least one convex corner. Specifically, in this embodiment, the length of the first inner fitting 510 and the length of the second inner fitting 520 are the same, meaning that in this embodiment, the inner wall frame 500 is an isosceles triangle. This facilitates adjustable angles of the first and second inner fittings 510, 520.

[0051] In this embodiment, the first inner fitting member 510 and the second inner fitting member 520 are rotatably connected, and the ends of the inner connecting member 530 are rotatably connected to the first inner fitting member 510 and the second inner fitting member 520, respectively. The length of the inner connecting member 530 is adjustable. Thus, by adjusting the length of the inner connecting member 530, the angle between the first inner fitting member 510 and the second inner fitting member 520 can be adjusted, greatly facilitating the adjustment of the angle between the first inner fitting member 510 and the second inner fitting member 520. It is understood that in other embodiments, the first inner fitting member 510 and the second inner fitting member 520 can also be rotatably connected, and at least one of the first inner fitting member 510 and the second inner fitting member 520 can have multiple different fixing positions with the inner connecting member 530 (the multiple different fixing positions are arranged at intervals along the length of the inner connecting member 530). This allows the angle between the first inner fitting member 510 and the second inner fitting member 520 to be adjustable, while the length of the inner connecting member 530 can remain fixed.

[0052] In this embodiment, the inner connector 530 includes a first connecting portion 532 rotatably connected to the first inner fitting 510, a second connecting portion 534 rotatably connected to the second inner fitting 520, an intermediate connecting portion 536 whose ends are respectively plugged into the first and second connecting portions 532, 534, and a first inner pin 538 and a second inner pin 539. The first connecting portion 532 has a plurality of first fixing holes spaced apart along the length of the inner connector 530. The second connecting portion 534 has a plurality of second fixing holes spaced apart along the length of the inner connector 530. The intermediate connecting portion 536 has a plurality of intermediate fixing holes 536a spaced apart along the length of the inner connector 530. The first inner pin 538 cooperates with one of the first fixing holes and one of the intermediate fixing holes 536a to securely connect the first connecting portion 532 and the intermediate connecting portion 536. The second inner pin 539 cooperates with one of the second fixing holes and one of the intermediate fixing holes 536a to securely connect the second connecting portion 534 and the intermediate connecting portion 536. This makes it very easy to adjust the length of the inner connecting member 530. It is understood that in other embodiments, the inner connecting member 530 can also be a telescopic member, which includes an inner tube and an outer tube that are plugged together, with the end of the inner tube away from the outer tube being rotatably connected to the first inner fitting member 510, and the end of the outer tube away from the inner tube being rotatably connected to the second inner fitting member 520.

[0053] In this embodiment, the diameter of the first connecting portion 532 is the same as the diameter of the second connecting portion 534 and is smaller than the diameter of the middle connecting portion 536. It is understood that in other embodiments, the diameter of the first connecting portion 532 and the diameter of the second connecting portion 534 may be the same as the diameter of the second connecting portion 534 and be larger than the diameter of the middle connecting portion 536.

[0054] In this embodiment, the inner connector 530 (first connecting portion 532, second connecting portion 534, and intermediate connecting portion 536), first inner fitting 510, and second inner fitting 520 all comprise square rectangular tubes. The square structure allows the first and second inner fittings 510, 520 to have a larger crimping surface, thereby facilitating crimping of the first and second inner fittings 510, 520 against the first and second inner sides 32, 34, respectively. Furthermore, the tubular structure reduces the weight of the inner wall frame 500, thereby making the fixture 10 lightweight. It is understood that in other embodiments, the inner connector 530, first and second inner fittings 510, 520 may all comprise solid square rectangular bars or round tubes.

[0055] In this embodiment, the wall exterior frame 600 further includes a first support member 630, an external connector 640, and a second support member 650, which are sequentially connected. The first support member 630 is connected to the end of the first external fitting member 610 that is distal from the second external fitting member 620. The second support member 650 is connected to the end of the second external fitting member 620 that is distal from the first external fitting member 610. The external connector 640 is configured to connect to the connection assembly 700. This greatly facilitates the connection between the wall exterior frame 600 and the connection assembly 700.

[0056] In this embodiment, the outer wall frame 600 is a concave pentagon. That is, in this embodiment, the external connector 640 is an elongated strip. This allows the outer wall frame 600 to have a simple structure. It is understood that in other embodiments, the outer wall frame 600 can also be a hexagon, in which case the external connector 640 can have an inwardly concave corner structure.

[0057] In this embodiment, the wall outer frame 600 further includes a third support member 660. The first outer fitting member 610 is rotatably connected to the second outer fitting member 620. The first support member 630 is rotatably connected to the first outer fitting member 610 and the outer connecting member 640 at both ends. The second support member 650 is rotatably connected to the second outer fitting member 620 and the outer connecting member 640 at both ends. The third support member 660 spans the outer connecting member 640, with one end connected to the intersection of the first and second outer fitting members 610, 620. The length of the third support member 660 between the intersection of the first and second outer fitting members 610, 620 and the outer connecting member 640 is adjustable. This facilitates adjusting the angle of the first and second outer fitting members 610, 620. It can be understood that in other embodiments, the length of the third support member 660 located between the intersection of the first outer fitting member 610 and the second fitting member 620 and the external connecting member 640 may also be non-adjustable. In this case, the intersection of the first outer fitting member 610 and the second fitting member may have multiple different fixed positions with the third support member 660 (the multiple different fixed positions are arranged at intervals along the length direction of the third support member 660) so that the angle of the first outer fitting member 610 and the second fitting member 620 can be adjusted.

[0058] In this embodiment, the wall outer frame 600 further includes an external latch 670. The third support member 660 has a plurality of external fixing holes spaced apart along the length of the third support member 660. The external latch 670 cooperates with one of the external fixing holes to securely connect the third support member 660 to the external connector 640. This facilitates adjustable length of the third support member 660 between the intersection of the first and second external fittings 610, 620 and the external connector 640. It will be appreciated that in other embodiments, the third support member 660 may also be a telescopic member comprising an inner tube and an outer tube that are connected together, with the end of the inner tube away from the outer tube connected to the intersection of the first and second external fittings 610, 620, and the end of the outer tube away from the inner tube connected to the external connector 640.

[0059] In this embodiment, the length of the first outer fitting 610 is the same as the length of the second outer fitting 620, the length of the first support member 630 is the same as the length of the second support member 650, and the third support member 660 spans the middle of the outer connecting member 640. This makes it very easy to adjust the angles of the first outer fitting 610 and the second outer fitting 620.

[0060] In this embodiment, the first outer fitting 610, the second outer fitting 620, the first support 630, the outer connector 640, the second support 650, and the third support 660 all comprise square rectangular tubes. The square structure allows the first and second outer fittings 610, 620 to have a larger crimping surface, thereby facilitating crimping of the first and second outer fittings 610, 620 against the first and second outer sides 42, 44, respectively. Furthermore, the tubular structure reduces the weight of the wall outer frame 600, thereby making the fixture 10 lightweight. It is understood that in other embodiments, the first outer fitting 610, the second outer fitting 620, the first support 630, the outer connector 640, the second support 650, and the third support 660 may all comprise solid square rectangular bars or round tubes.

[0061] In this embodiment, multiple connection assemblies 700 are provided. These multiple connection assemblies 700 are arranged in a straight line at intervals. This facilitates the secure attachment of the inner wall frame 500 and the outer wall frame 600 to the inner wall formwork 30 and the outer wall formwork 40 at the wall corner 20 during construction. It is understood that in other embodiments, the multiple connection assemblies 700 may not be arranged in a straight line at intervals, but rather in a random pattern. It is also understood that in other embodiments, there may be only one connection assembly 700. Specifically, in this embodiment, the extension direction of the inner connector 530 and the extension direction of the outer connector 640 are both the same as the arrangement direction of the multiple connection assemblies 700.

[0062] In this embodiment, the fixing device 10 includes two inner wall frames 500 and two outer wall frames 600. The two inner wall frames 500 are spaced apart in the vertical direction. The two outer wall frames 600 are respectively provided corresponding to the two inner wall frames 500. One end of the connecting assembly 700 connects to both inner wall frames 500, while the other end of the connecting assembly 700 connects to both outer wall frames 600. This reduces the number of connecting assemblies 700 used, thereby lowering costs and simplifying the assembly process. Furthermore, the adjacent arrangement of the two inner wall frames 500 and the two outer wall frames 600 further facilitates the secure fixing of the inner wall formwork 30 and the outer wall formwork 40 during construction of the wall corner 20. It is understood that in other embodiments, the fixing device 10 may include only one inner wall frame 500 and one outer wall frame 600, or may include three or more inner wall frames 500 and three or more outer wall frames 600.

[0063] In this embodiment, the connection assembly 700 includes an inner U-shaped block 710, an outer U-shaped block 720, a tie rod 730, an inner nut 740, and an outer nut 750. The inner U-shaped block 710 is used to engage the ends of the two inner wall frames 500 that are away from the outer wall frames 600. The outer U-shaped block 720 is used to engage the ends of the two outer wall frames 600 that are away from the inner wall frames 500. The tie rod 730 is used to pass through the inner U-shaped block 710, the inner wall formwork 30, the outer wall formwork 40, and the outer U-shaped block 720. The inner nut 740 cooperates with the tension screw 730 to fix the inner U-shaped block 710 on the two inner wall frames 500, and the outer nut 750 cooperates with the tension screw 730 to fix the outer U-shaped block 720 on the two outer wall frames 600, so that the first inner fitting part 510 and the second inner fitting part 520 are pressed on the first inner side surface 32 and the second inner side surface 34 respectively, and the first outer fitting part 610 and the second outer fitting part 620 are pressed on the first outer side surface 42 and the second outer side surface 44 respectively.

[0064] In this way, when assembling the above-mentioned fixing device 10 on the wall inner template 30 and the wall outer template 40 of the construction wall corner 20, the tension screw 730 can be assembled on the wall inner template 30 and the wall outer template 40 first, and then, according to the position of the tension screw 730, two wall inner frame bodies 500 are placed on the wall inner template 30 and two wall outer frame bodies 600 are placed on the wall outer template 40 on the upper and lower sides of the tension screw 730. The inner U-shaped block 710 is clamped at the positions of the two inner wall frames 500 and the tension screws 730, and the outer U-shaped block 720 is clamped at the positions of the two outer wall frames 600 and the tension screws 730, and then the inner nuts 740 and the outer nuts 750 are respectively assembled at the two ends of the tension screws 730, so that the two inner wall frames 500 are pressed on the inner wall formwork 30, and the two outer wall frames 600 are pressed on the outer wall formwork 40.

[0065] In the above assembly process, the inner U-shaped block 710 can adjust its position on the two inner wall frames 500 according to the position of the tension screw 730, and the outer U-shaped block 720 can adjust its position on the two outer wall frames 600 according to the position of the tension screw 730. The installation position of the connecting component 700 is not limited by the angle between the first inner fitting piece 510 and the second inner fitting piece 520 of the inner wall frame 500 and the angle between the first outer fitting piece 610 and the second outer fitting piece 620 of the outer wall frame 600, so that When the angles of the first inner fittings 510 and the second inner fittings 520 of the inner wall frame 500 are adjustable, and the angles of the first outer fittings 610 and the second outer fittings 620 of the outer wall frame 600 are adjustable, the connecting assembly 700 of the above-mentioned fixing device 10 can be connected to the first inner fittings 510 and the second inner fittings 520 at any angle and the first outer fittings 610 and the second outer fittings 620 at any angle, that is, the above-mentioned fixing device 10 can be used in the construction of wall corners 20 at different angles, and has the characteristics of a wide range of applications.

[0066] Furthermore, the connection assembly 700 is very convenient for disassembling the fixing device 10 after the construction of the wall corner 20 is completed. Specifically, after removing the inner nut 740 on the inner U-shaped block 710, the inner wall frame 500 can be removed from the inner wall form 30 and the tie screw 730. After removing the outer nut 750 on the outer U-shaped block 720, the outer wall frame 600 can be removed from the outer wall form 40 and the tie screw 730. The tie screw 730 located outside the wall corner 20 can be removed before or after removing the inner wall form 30 and the outer wall form 40 (the tie screw 730 located inside the wall corner 20 does not need to be removed). Specifically, an electric saw can be used to cut off the tension screw 730 located outside the wall corner 20 to achieve the removal of the tension screw 730. When the tension screw 730 is a multi-section structure and the sections are connected by threads, the tension screw 730 located outside the wall corner 20 can be removed by rotation.

[0067] It can be understood that in other embodiments, when the above-mentioned fixing device 10 only includes an inner wall frame 500 and an outer wall frame 600, and the angles of the first inner fitting part 510 and the second inner fitting part 520 of the inner wall frame 500 are not adjustable, and the angles of the first outer fitting part 610 and the second outer fitting part 620 of the outer wall frame 600 are not adjustable, the connecting assembly 700 can only include the tension screw 730, the inner nut 740 and the outer nut 750, and omit the inner U-shaped block 710 and the outer U-shaped block 720.

[0068] The above-mentioned fixing device 10 solves the problems of difficult and high cost template fixation in the construction of wall corners 20. The above-mentioned fixing device 10 is a lightweight, angle-adjustable auxiliary clamp device that can be installed on the inside and outside of the wall corners 20. The fixing device 10 has a simple structure, is easy to install and disassemble, has a fast turnover, has a low cost, and its main components are reusable. It is safe, beautiful, and easy to promote. It can greatly improve construction efficiency and save a lot of materials and project costs. It is particularly suitable for wall corners 20 with non-right angles.

[0069] like Figure 4 As shown, this embodiment also provides a method for fixing the construction template of the wall corner 20, comprising the following steps:

[0070] Step S810: providing a fixing device 10.

[0071] In step S820, the inner wall formwork 30 and the outer wall formwork 40 of the construction wall corner 20 are assisted by the fixing device 10, so that the first inner fitting part 510 and the second inner fitting part 520 are pressed on the first inner side surface 32 and the second inner side surface 34 respectively, and the first outer fitting part 610 and the second outer fitting part 620 are pressed on the first outer side surface 42 and the second outer side surface 44 respectively.

[0072] When there are multiple fixing devices 10 , step S820 is repeated until multiple fixing devices 10 are assembled and arranged at intervals in the vertical direction.

[0073] like Figure 5 As shown, in this embodiment, before step S820, the following steps are also included:

[0074] Step S812, calculate and determine the length of the inner connecting member 530 according to the angle of the wall corner 20, and calculate and determine the length between the end of the first outer fitting member 610 away from the second outer fitting member 620 and the end of the second outer fitting member 620 away from the first outer fitting member 610 according to the angle of the wall corner 20.

[0075] Step S814, adjust the length of the inner connecting part 530 to a certain length so that the angle between the first inner fitting part 510 and the second inner fitting part 520 matches the angle between the first inner side surface 32 and the second inner side surface 34, and adjust the length between the end of the first outer fitting part 610 away from the second outer fitting part 620 and the end of the second outer fitting part 620 away from the first outer fitting part 610 to a certain length so that the angle between the first outer fitting part 610 and the second outer fitting part 620 matches the angle between the first outer side surface 42 and the second outer side surface 44.

[0076] Specifically, in this embodiment, after the length of the inner connector 530 is adjusted to a predetermined length, the predetermined length is fixed using the first inner plug 538 and the second inner plug 539. After the length between the end of the first outer fitting 610 away from the second outer fitting 620 and the end of the second outer fitting 620 away from the first outer fitting 610 reaches the predetermined length, the predetermined length is fixed using the outer plug 670.

[0077] It should be noted that once the angle of the wall corner 20 is determined, the included angle between the first inner side surface 32 and the second inner side surface 34 is determined, as is the included angle between the first outer side surface 42 and the second outer side surface 44, and both are equal to the angle of the wall corner 20. Therefore, the included angle between the first inner fitting component 510 and the second inner fitting component 520, and the included angle between the first outer fitting component 610 and the second outer fitting component 620, all need to be adjusted to the same angle as the wall corner 20. Since the lengths of the first inner fitting component 510 and the second inner fitting component 520 are fixed, the length of the inner connector 530 can be calculated based on the angle of the wall corner 20, the lengths of the first inner fitting component 510 and the second inner fitting component 520. Once the length of the inner connector 530 is adjusted to the fixed length, the included angle between the first inner fitting component 510 and the second inner fitting component 520 becomes equal to the angle of the wall corner 20. Similarly, the length between the end of the first outer fitting 610 away from the second outer fitting 620 and the end of the second outer fitting 620 away from the first outer fitting 610 can be calculated based on the angle of the wall corner 20, the length of the first outer fitting 610 and the length of the second outer fitting 620. After the length between the end of the first outer fitting 610 away from the second outer fitting 620 and the end of the second outer fitting 620 away from the first outer fitting 610 is adjusted to a certain length, the angle between the first outer fitting 610 and the second outer fitting 620 is the same as the angle of the wall corner 20.

[0078] like Figure 6 As shown, in this embodiment, step S820 includes the following steps:

[0079] Step S820a: Assemble a tension screw 730 on the inner wall formwork 30 and the outer wall formwork 40.

[0080] Step S820b, place two inner wall frames 500 on the inner wall formwork 30 of the construction wall corner 20, and place two outer wall frames 600 on the outer wall formwork 40 of the construction wall corner 20. The two inner wall frames 500 and the two outer wall frames 600 are distributed on the upper and lower sides of the tension screw 730.

[0081] In step S820c, an inner U-shaped block 710 and an outer U-shaped block 720 are respectively clamped at the positions corresponding to the inner wall frame 500 and the tension screw 730 and the outer wall frame 600 and the tension screw 730, and an inner nut 740 and an outer nut 750 are respectively assembled at both ends of the tension screw 730, so that the first inner fitting 510 and the second inner fitting 520 are respectively pressed on the first inner side surface 32 and the second inner side surface 34, and the first outer fitting 610 and the second outer fitting 620 are respectively pressed on the first outer side surface 42 and the second outer side surface 44.

[0082] When the fixing device 10 includes a plurality of connection components 700 , steps S820 a and S820 c are repeated until the plurality of connection components 700 are assembled.

[0083] Compared with the existing method of fixing the formwork at the wall corner 20, the above-mentioned method of fixing the formwork has the following advantages:

[0084] (1) The materials used in this method are simple, low-cost, easy to operate, and reusable.

[0085] (2) This method has a wide range of applications and can be used for wall corners at various angles.

[0086] (3) This method ensures the fixing effect of the wall formwork at 20 corners of the wall through the straight pulling effect of the pulling screw 730, effectively improving the casting quality.

[0087] like Figure 7 As shown, this embodiment also provides a construction method for a wall corner 20, comprising the following steps:

[0088] Step S910 , setting the inner wall template 30 and the outer wall template 40 according to the angle of the wall corner 20 .

[0089] Step S920 , using the above-mentioned method for fixing the construction formwork of the wall corner 20 to assist in fixing the inner wall formwork 30 and the outer wall formwork 40 .

[0090] Step S930: pouring concrete between the inner wall formwork 30 and the outer wall formwork 40.

[0091] Step S940: After the concrete hardens to a preset hardness, the fixing device, the inner wall formwork 30 and the outer wall formwork 40 are removed to obtain a wall corner.

[0092] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A fixing device for a construction template at a wall corner, used for assisting in fixing an inner wall template and an outer wall template during the construction process of the wall corner, wherein the inner wall template has a first inner side surface and a second inner side surface set at an angle, and the outer wall template has a first outer side surface and a second outer side surface set at an angle, characterized in that: include: The inner wall frame is used to cooperate with the inner wall template, and the inner wall frame includes a first inner matching piece and a second inner matching piece arranged at an angle; an outer wall frame, configured to correspond to the inner wall frame and to cooperate with the outer wall formwork, the outer wall frame comprising a first outer fitting and a second outer fitting arranged at an angle; and a connecting assembly, configured to be passed through the inner wall formwork and the outer wall formwork and detachably connect the inner wall frame and the outer wall frame, so that the first inner fitting member and the second inner fitting member are pressed against the first inner side surface and the second inner side surface, respectively, and the first outer fitting member and the second outer fitting member are pressed against the first outer side surface and the second outer side surface, respectively; The angles of the first inner fitting member and the second inner fitting member are adjustable, and the angles of the first outer fitting member and the second outer fitting member are adjustable; The inner wall frame further includes an inner connecting member, the inner connecting member connecting the first inner fitting member and the second inner fitting member, and the inner connecting member is used to connect to the connecting assembly; wherein the first inner fitting member is rotatably connected to the second inner fitting member, and the two ends of the inner connecting member are respectively rotatably connected to the first inner fitting member and the second inner fitting member, and the length of the inner connecting member is adjustable; The outer wall frame also includes a first support member, an external connection member, and a second support member connected in sequence, the first support member is connected to an end of the first external fitting member away from the second external fitting member, the second support member is connected to an end of the second external fitting member away from the first external fitting member, and the external connection member is used to connect to the connection assembly; wherein, the outer wall frame also includes a third support member, the first external fitting member is rotatably connected to the second external fitting member, the two ends of the first support member are respectively rotatably connected to the first external fitting member and the external connection member, the two ends of the second support member are respectively rotatably connected to the second external fitting member and the external connection member, the third support member spans the external connection member, one end is connected to the intersection of the first external fitting member and the second external fitting member, and the length of the third support member between the intersection of the first external fitting member and the second external fitting member and the external connection member is adjustable.

2. The fixing device for the construction template at the wall corner according to claim 1, characterized in that: The inner connecting member includes a first connecting portion rotatably connected to the first inner fitting member, a second connecting portion rotatably connected to the second inner fitting member, an intermediate connecting portion whose two ends are respectively plugged into the first connecting portion and the second connecting portion, and a first inner plug pin and a second inner plug pin. The first connecting portion has a plurality of first fixing holes arranged at intervals along the length direction of the inner connecting member, the second connecting portion has a plurality of second fixing holes arranged at intervals along the length direction of the inner connecting member, and the intermediate connecting portion has a plurality of intermediate fixing holes arranged at intervals along the length direction of the inner connecting member. The first inner plug pin cooperates with one of the first fixing holes and one of the intermediate fixing holes to fix the first connecting portion and the intermediate connecting portion, and the second inner pin cooperates with one of the second fixing holes and one of the intermediate fixing holes to fix the second connecting portion and the intermediate connecting portion.

3. The fixing device for the construction template at the wall corner according to claim 1, characterized in that: The length of the first inner fitting member is the same as the length of the second inner fitting member; and / or The inner connecting member, the first inner fitting member and the second inner fitting member all comprise square tubes; and / or There are multiple connecting components, and the multiple connecting components are arranged at intervals along the extension direction of the inner connecting member.

4. The fixing device for the construction template at the wall corner according to claim 1, characterized in that: The outer wall frame also includes an external pin, and the third support member has a plurality of external fixing holes spaced apart along the length direction of the third support member. The external pin cooperates with one of the external fixing holes to fix the third support member and the external connecting member.

5. The fixing device for the construction template at the wall corner according to claim 1, characterized in that: The length of the first outer fitting is the same as the length of the second outer fitting, the length of the first support member is the same as the length of the second support member, and the third support member spans the middle of the outer connecting member; and / or There are multiple connecting components, and the multiple connecting components are arranged at intervals along the extension direction of the external connecting member.

6. The fixing device for the construction formwork at the wall corner according to any one of claims 1 to 5, characterized in that: There are two inner wall frames, which are arranged at intervals in the up and down directions; there are two outer wall frames, which are arranged at intervals in the up and down directions, and the two outer wall frames are respectively arranged corresponding to the two inner wall frames, one end of the connecting component is connected to the two inner wall frames at the same time, and the other end of the connecting component is connected to the two outer wall frames at the same time.

7. The fixing device for the construction template at the wall corner according to claim 6, characterized in that: The outer nut and the tension screw cooperate to fix the outer U-shaped block to the two inner frames of the wall, so that the first inner fitting and the second inner fitting are respectively pressed on the first inner side surface and the second inner side surface, and the first outer fitting and the second outer fitting are respectively pressed on the first outer side surface and the second outer side surface.

8. A method for fixing a construction template at a wall corner, characterized in that: The steps include: Providing a fixing device for a construction template at a wall corner as described in any one of claims 1 to 6; and The inner wall formwork and the outer wall formwork of the corner of the construction wall are assisted by fixing devices, so that the first inner fitting part and the second inner fitting part are pressed on the first inner side surface and the second inner side surface respectively, and the first outer fitting part and the second outer fitting part are pressed on the first outer side surface and the second outer side surface respectively. When there are multiple fixing devices, repeat this step until multiple fixing devices are assembled and arranged at intervals in the upper and lower directions.

9. The method for fixing the construction formwork at the wall corner according to claim 8, characterized in that: Before performing the step of using the fixing device to assist in fixing the inner wall formwork and the outer wall formwork of the construction wall corner, the following steps are also included: Calculating and determining the length of the inner connecting member according to the angle of the wall corner, and calculating and determining the length between an end of the first outer fitting member away from the second outer fitting member and an end of the second outer fitting member away from the first outer fitting member according to the angle of the wall corner; and Adjust the length of the inner connecting piece to a certain length so that the angle between the first inner fitting piece and the second inner fitting piece matches the angle between the first inner side surface and the second inner side surface, and adjust the length between the end of the first outer fitting piece away from the second outer fitting piece and the end of the second outer fitting piece away from the first outer fitting piece to a certain length so that the angle between the first outer fitting piece and the second outer fitting piece matches the angle between the first outer side surface and the second outer side surface.

10. The method for fixing the construction formwork at the wall corner according to claim 8, characterized in that: The step of using a fixing device to assist in fixing the inner wall formwork and the outer wall formwork of the construction wall corner includes the following steps: Assemble a tension screw on the inner wall formwork and the outer wall formwork; Place two inner wall frames on the inner wall formwork at the corner of the construction wall, and place two outer wall frames on the outer wall formwork at the corner of the construction wall. The two inner wall frames and the two outer wall frames are distributed on the upper and lower sides of the tension screws; and An inner U-shaped block and an outer U-shaped block are respectively clamped at the positions corresponding to the inner frame of the wall and the tension screws and the positions corresponding to the outer frame of the wall and the tension screws, and inner nuts and outer nuts are respectively assembled at both ends of the tension screws, so that the first inner fitting and the second inner fitting are respectively pressed on the first inner side surface and the second inner side surface, and the first outer fitting and the second outer fitting are respectively pressed on the first outer side surface and the second outer side surface, wherein, when the fixing device includes multiple connecting components, the steps of assembling the connecting components are repeated until the multiple connecting components are assembled.

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