Pay-off port box for building construction

Abstract

The utility model relates to a pay-off port box for building construction, which comprises a shell, the shell comprises four side plates defining a cavity, each side plate comprises an inclined side panel and a vertical side panel located at the bottom end of the inclined side panel, one end, far away from the inclined side panel, of the inclined side panel inclines towards the outside of the shell, and the pay-off port box further comprises an installation mechanism installed at the bottom of the shell. The mounting mechanism is arranged to replace a screw and a nut, so that the problem that the screw and the nut are quickly rusted in a humid building construction environment, and then the dismounting difficulty is increased is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering formwork, and particularly relates to a setting-out opening box for building construction. Background Technique

[0002] During building construction, generally, axis control points are established on the plane of the building, and marks are embedded. Then, transfer openings are reserved at corresponding positions on each floor slab. Instruments such as laser plumb instruments and theodolites are directly used at the axis control points, and their positions are vertically projected onto any floor through the reserved transfer openings for measurement. When pouring the floor slab of each floor, a setting-out opening box is embedded at the reserved transfer opening positioned by the control point. The setting-out opening box is to make a standard setting-out opening in the concrete floor slab, penetrate the floor slab up and down, and lead the setting-out from the bottom layer to the upper layer, which is convenient for construction workers to set out and also to ensure construction in strict accordance with the design drawings.

[0003] Currently, for the iron and wooden setting-out opening boxes, the positions of the openings of the wooden products are easily damaged during form removal. Generally, the molds are disposable, while the iron products will rust due to environmental and operation problems, reducing the service life of the setting-out opening boxes. During form removal, due to the difficult form removal, destructive means are inevitably used during the disassembly process, causing the setting-out opening boxes to deform and break, affecting the recycling use of the next layer or making them unable to be used again, with low utilization rate, thus increasing the construction cost and causing waste of materials and labor. The assembly of the box requires welding, and certain harmful gases will be generated during the operation process. The production operation is troublesome and requires professional personnel to operate, and it is not environmentally friendly during production. Using the deformed setting-out opening box again will affect the size of the reserved line opening of the setting-out opening, resulting in the inability of the instrument to be vertically projected onto any floor for measurement, and there will also be a relatively cumbersome plugging procedure in the later stage.

[0004] The comparative document discloses a combined mold for setting-out holes in building construction, including: a steel box, which is welded by steel plates, with an open top cavity and a rectangular groove at the bottom; a connecting piece, which is flat, corresponding to the upper part of the rectangular groove and arranged at the top of the steel box, and a reserved round hole is provided in the middle of the connecting piece; a screw rod, which is a through-thread screw rod, with a fixing plate for rotating and fixing at the bottom of the screw rod after passing through the rectangular groove and the floor formwork, and the top of the screw rod is fixed by a nut after passing through the reserved round hole. The existing technology still uses the method of welding steel plates at present, and the fixing plate and the threaded connection method are used to fix the whole box on the formwork. However, the steel plates, screw rods and nuts will quickly rust in the humid building construction environment, and the accumulation of iron oxides will increase the difficulty of disassembling the threaded connection, and even jam severely. At this time, additional disassembly steps such as using rust remover or cutting and drilling methods are required for disassembly.

[0005] Therefore, it is necessary to design a setting-out opening box for building construction with a non-screw-nut fixing method to solve the technical problem that screw nuts will quickly rust in the humid building construction environment, thereby increasing the difficulty of disassembly. Summary of the Utility Model

[0006] The purpose of the present utility model is to overcome the problem that the screw nuts of the existing setting-out opening box will quickly rust in the humid building construction environment, thereby increasing the difficulty of disassembly, and to provide a setting-out opening box for building construction without screw nuts.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present utility model is as follows:

[0008] A setting-out opening box for building construction, including a housing, the housing includes four side plates surrounding a cavity, each side plate includes an inclined side panel and a vertical side panel at the bottom end of the inclined side panel, and one end of the inclined side panel away from the inclined side panel inclines outward of the housing. It also includes an installation mechanism, and the installation mechanism is installed at the bottom of the housing.

[0009] During the working process of the above scheme, during installation, first move the housing to the predetermined installation position, then install the installation mechanism at the bottom of the housing, and adjust the installation mechanism so that one end of the installation mechanism is fixedly connected to the housing and the other end is fixedly connected to the building formwork; during concrete pouring, the concrete impacts the setting-out box from all directions, and the side plates of the housing play a role of support and block, so that the hole is formed. When the housing shakes or runs out of position due to the impact force of the concrete, the installation mechanism can limit its movement and stably fix the entire housing on the building formwork to form an accurate setting-out hole. When disassembling, first remove the fixed connection between the installation mechanism and the building formwork, then take out the installation mechanism from the bottom of the housing, and finally take out the housing.

[0010] Preferably, the housing further includes a support frame, the support frame is a cross-shaped plate member located inside the housing, and the position where the support frame is fixedly connected to the side plate is at the midline of the inclined side panel. During concrete pouring, the concrete impacts the setting-out box from all directions, and the support frame plays a role of supporting the side plates of the housing, improving the structural strength of the housing and preventing the side plates from being crushed.

[0011] Preferably, the housing further includes a handle, the handle is a crossbeam located at the top of the housing and fixedly connected to two opposite inclined side panels. After the hole is formed, the housing will be closely attached to the inner wall of the hole, and there will be a certain resistance when the housing is taken out. Setting a crossbeam-type handle can provide a force application point for easily taking out the housing.

[0012] Preferably, it further includes a handle cover plate. A clamping device is provided on the bottom surface of the handle cover plate. A handle mounting plate is provided inside the handle. The handle mounting plate is fixedly connected to two opposite long side surfaces of the handle. The clamping device is in interference fit with the handle mounting plate to connect and fix the handle cover plate. Cover bumps for facilitating the disassembly of the handle cover plate are provided at both sides of the upper surface of the handle cover plate.

[0013] Preferably, the housing further includes an anti-slip edge connected to the top end of the side surface.

[0014] Preferably, the installation mechanism includes a bottom housing mounting part located at the bottom of the housing and a template connection part connected to the bottom housing mounting part.

[0015] Preferably, the bottom housing mounting part includes positioning holes located at the bottom of the support frame. The template connection part includes a bottom plate, a positioning block fixedly connected to the bottom plate on the surface of the bottom plate, and a limiting block for restricting the rotation of the housing. The positioning holes are engaged and rotatably connected with the positioning blocks. The positioning blocks and the limiting blocks are located on the center line of the bottom plate and are distributed on both sides of the bottom plate.

[0016] Preferably, the four corners of the bottom plate are all arc-shaped chamfers. The cross-sections of the positioning blocks and the positioning holes are both circular. A deformation groove for facilitating the engagement of the positioning block and the positioning hole is provided at the center of the positioning block. The positioning blocks and the positioning holes are both set to be cylindrical so that they can rotate after being engaged. When installing the installation mechanism, the bottom plate can be directly rotated so that the limiting block can rotate in the hollow space between the vertical side plate and the support frame.

[0017] Preferably, a claw part for stably engaging and installing the positioning block and the positioning hole is fixedly connected to the side surface of the top end of the positioning block. A engaging part for engaging with the claw part is provided on the side surface of the inner top end of the positioning hole. When the bottom plate is rotated until the limiting block is close to the support frame side, the claw part is not engaged with the engaging part. At this time, the deformation groove causes the entire positioning block to undergo sufficient elastic compression so that the positioning block can still rotate in the positioning hole. When the bottom plate is rotated until it abuts against the vertical side plate side, the claw part is engaged with the engaging part. At this time, the entire template connection part is in the installed state. The cooperation of the claw part and the engaging part can restrict the movement of the housing in the vertical direction and prevent the housing from floating due to the impact of concrete.

[0018] Preferably, the bottom housing mounting part includes pin holes located on the vertical side panel. The template connection part includes pin nails. The pin nails are standard parts. The pin nails are inserted into the pin holes and connected to the floor aluminum formwork members.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the installation and fixation between the installation mechanism, the housing, and the building formwork, it is avoided that when pouring concrete, the concrete impacts the setting-out box from all directions, causing the housing to shake or shift. The structure of screw and nut is removed, effectively solving the problem that the screw and nut will quickly rust in the humid construction environment, which in turn increases the difficulty of disassembly. At the same time, it can effectively fix the housing and form an accurate hole opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 6 is a perspective view of a setting-out opening box for building construction of the present utility model;

[0021] Figure 2 FIG. 10 is a schematic diagram of the internal structure of a setting-out opening box for building construction in Embodiment 2;

[0022] Figure 3 FIG. 14 is a schematic diagram of the structure of a setting-out opening box for building construction in Embodiment 2;

[0023] Figure 4 FIG. 18 is a schematic diagram of the setting-out opening box for building construction of the present utility model from a top view angle;

[0024] Figure 5 FIG. 22 is a schematic diagram of the setting-out opening box for building construction of the present utility model from a bottom view angle;

[0025] Figure 6 FIG. 26 is a schematic diagram of the structure of the installation mechanism in Embodiment 2;

[0026] Figure 7 FIG. 30 is a schematic diagram of the structure of the formwork connection part in Embodiment 2;

[0027] Figure 8 FIG. 34 is a schematic diagram of the structure of a setting-out opening box for building construction in Embodiment 3. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe the embodiments of the present utility model with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be understood that the preferred embodiments are only for explaining the present utility model, rather than for limiting the protection scope of the present utility model.

[0029] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0030] Embodiment 1

[0031] As Figure 1 Shown in FIG. is Embodiment 1 of a setting-out opening box for building construction. A setting-out opening box for building construction includes a housing 1. The housing 1 includes four side plates 101 that enclose a cavity. Each side plate 101 includes an inclined side panel 1011 and a vertical side panel 1012 located at the bottom end of the inclined side panel 1011. One end of the inclined side panel 1011 away from the other inclined side panel 1011 inclines outward from the housing 1. It further includes an installation mechanism 3, and the installation mechanism 3 is installed at the bottom of the housing 1.

[0032] Furthermore, the housing 1 further includes a support frame 102. The support frame 102 is a cross-shaped plate member located inside the housing 1. The position where the support frame 102 is fixedly connected to the side plate 101 is at the midline of the inclined side panel 1011. During concrete pouring, the concrete impacts the setting-out box from all directions. The support frame 102 plays a supporting role for the side plates 101 of the housing 1, improves the structural strength of the housing 1, and prevents the side plates 101 from being crushed.

[0033] Furthermore, the housing 1 further includes a handle 103. The handle 103 is a crossbeam located at the top of the housing 1 and fixedly connected to two opposite inclined side panels 1011. After the opening is formed, the housing 1 will be in close contact with the inner wall of the opening. There will be a certain resistance when the housing 1 is taken out. The crossbeam-type handle 103 is provided to provide a force application point for easily taking out the housing 1.

[0034] Furthermore, it further includes a handle cover plate 2. A clamping device 201 is provided on the bottom surface of the handle cover plate 2. A handle mounting plate 203 is provided inside the handle 103. The handle mounting plate 203 is fixedly connected to two opposite long side surfaces of the handle 103. The clamping device 201 is in interference fit with the handle mounting plate 203 to connect and fix the handle cover plate 2; Cover bumps 202 for facilitating the disassembly of the handle cover plate 2 are provided at both sides of the upper surface of the handle cover plate 2.

[0035] Furthermore, the housing 1 further includes an anti-slip edge 104 connected to the top end of the side surface.

[0036] Preferably, the installation mechanism 3 includes a bottom housing installation part 302 located at the bottom of the housing 1 and a formwork connection part 301 connected to the bottom housing installation part 302.

[0037] Working process or principle of this embodiment: During installation, move the housing 1 to a predetermined installation position, then install the installation mechanism 3 at the bottom of the housing 1, and adjust the installation mechanism 3 so that one end of the installation mechanism 3 is fixedly connected to the housing 1 and the other end is fixedly connected to the building formwork; during concrete pouring, the concrete impacts the setting-out box from all directions, and the side plate 101 of the housing 1 plays a blocking role, and the support frame 102 plays a supporting role for the side plate 101 of the housing 1, improving the structural strength of the housing 1 and preventing the side plate 101 from being crushed, further forming the opening. When the housing 1 shakes or moves due to the impact force of the concrete, the installation mechanism 3 can restrict its movement and stably fix the entire housing 1 on the building formwork to form an accurate setting-out opening. When disassembling, first remove the fixed connection between the installation mechanism 3 and the building formwork, then take out the installation mechanism 3 from the bottom of the housing 1, and finally take out the housing 1 through the handle 103.

[0038] Beneficial effects of this embodiment: The formwork connection part 301 of the installation mechanism 3 is fixed on the aluminum alloy building formwork, and the installation mechanism 3 is directly used to fix the setting-out box. During the later concrete pouring process, the installation mechanism 3 can restrict the movement of the housing 1 in the vertical and horizontal directions, thereby preventing the housing 1 from floating, rotating, and moving out of position; the setting of the handle 103 facilitates the movement and disassembly of the box. When disassembling, only need to clamp the handle 103 and apply force to take out the entire setting-out box, removing the structure of the screw and nut, effectively solving the problem that the screw and nut will rust quickly in the humid construction environment, which will increase the disassembly difficulty, and at the same time can effectively fix the housing and form an accurate opening.

[0039] Embodiment 2

[0040] As Figures 2 - 7 shown in FIG. 1 is Embodiment 1 of a setting-out opening box for building construction. A setting-out opening box for building construction includes a housing 1. The housing 1 includes four side plates 101 that enclose a cavity. Each side plate 101 includes an inclined side panel 1011 and a vertical side panel 1012 located at the bottom end of the inclined side panel 1011. One end of the inclined side panel 1011 away from the inclined side panel 1011 inclines outward from the housing 1. It further includes an installation mechanism 3, and the installation mechanism 3 is installed at the bottom of the housing 1.

[0041] Furthermore, the housing 1 further includes a support frame 102. The support frame 102 is a cross-shaped plate member located inside the housing 1. The position where the support frame 102 is fixedly connected to the side plate 101 is at the midline of the inclined side panel 1011. During concrete pouring, the concrete impacts the setting-out box from all directions, and the support frame 102 plays a supporting role for the side plate 101 of the housing 1, improving the structural strength of the housing 1 and preventing the side plate 101 from being crushed.

[0042] Further, the housing 1 further includes a handle 103. The handle 103 is a cross beam located at the top of the housing 1 and fixedly connected to two opposite inclined side panels 1011. After the hole is formed, the housing 1 will fit tightly with the inner wall of the hole. There will be a certain resistance when the housing 1 is taken out. The cross beam type handle 103 is provided to provide a force application point for easily taking out the housing 1.

[0043] Further, it further includes a handle cover plate 2. A clamping device 201 is provided on the bottom surface of the handle cover plate 2. A handle mounting plate 203 is arranged inside the handle 103. The handle mounting plate 203 is fixedly connected to two opposite long side surfaces of the handle 103. The clamping device 201 is in interference fit with the handle 103 connecting plate to connect and fix the handle cover plate 2; Cover bumps 202 for facilitating the disassembly of the handle cover plate 2 are provided at both sides of the upper surface of the handle cover plate 2.

[0044] Further, the housing 1 further includes an anti-slip edge 104 connected to the top of the side surface.

[0045] Further, the installation mechanism 3 includes a bottom housing installation part 302 located at the bottom of the housing 1 and a template connection part 301 connected to the bottom housing installation part 302.

[0046] Further, the bottom housing installation part 302 includes a positioning hole 3021 located at the bottom of the support frame 102; the template connection part 301 includes a bottom plate 3013, a positioning block 3012 fixedly connected to the surface of the bottom plate 3013 and a limiting block 3011 for restricting the rotation of the housing 1. The positioning block 3012 and the limiting block 3011 are located on the symmetry axis of the bottom plate 3013. The positioning hole 3021 is engaged and rotatably connected with the positioning block 3012. The positioning block 3012 and the limiting block 3011 are located on the center line of the bottom plate 3013 and are distributed on both sides of the bottom plate 3013.

[0047] Further, the four corners of the bottom plate 3013 are all arc-shaped chamfers. The cross sections of the positioning block 3012 and the positioning hole 3021 are both circular. A deformation groove 3121 for facilitating the engagement of the positioning block 3012 and the positioning hole 3021 is provided at the center of the positioning block 3012. The positioning block 3012 and the positioning block 3012 are both set as cylindrical shapes so that they can rotate after being engaged and connected. When installing the installation mechanism 3, the bottom plate 3013 can be directly rotated so that the limiting block 3011 can rotate in the hollow space between the vertical side plate 101 and the support frame 102.

[0048] Preferably, a claw portion 3122 facilitating stable snap-fitting installation of the positioning block 3012 and the positioning hole 3021 is fixedly connected to the side of the top end of the positioning block 3012. A snap-fitting portion 3211 engaging with the claw portion 3122 is provided on the side of the inner top end of the positioning hole 3021. When the bottom plate 3013 is rotated until the limiting block 3011 is close to one side of the support frame 102, the claw portion 3122 is not engaged with the snap-fitting portion 3211. At this time, the deformation groove 3121 causes sufficient elastic compression of the entire positioning block 3012 so that the positioning block 3012 can still rotate in the positioning hole 3021. When the bottom plate 3013 is rotated to be close to one side of the vertical side plate 1012, the claw portion 3122 is engaged with the snap-fitting portion 3211. At this time, the entire template connection portion 301 is in the installed state. The cooperation setting of the claw portion 3122 and the snap-fitting portion 3211 can limit the movement of the housing 1 in the vertical direction and prevent the housing 1 from floating due to the impact of concrete.

[0049] Specifically, the setting of the deformation groove 3121 enables the entire positioning block 3012 to be compressed towards its central axis, and it is not difficult to insert when connecting the positioning block 3012 and the positioning hole 3021 due to the claw portion 3122. The cooperation setting of the claw portion 3122 and the snap-fitting portion 3211 can also stably fix the template connection portion 301 on the housing 1, limit the movement of the housing 1 in the vertical direction, and prevent the housing 1 from floating upward due to the impact of concrete.

[0050] The housing 1 and the aluminum alloy formwork are adhesively connected through the rotating bottom plate 3013. The limiting block 3011 restricts the entire template connection portion 301 to rotate in the hollow hole area between the support frame 102 and the vertical side plate 101. During installation, when the limiting block 3011 of the bottom plate 3013 rotates to the side close to the vertical side plate 101, the part of the bottom plate 3013 protruding from the vertical side plate 101 contacts and forms a fixed connection with the aluminum alloy formwork. The bottom plate 3013 is fixed below the aluminum alloy formwork. The fixed connection of the four bottom plates 3013 can prevent the housing 1 from floating and shifting. The contact of the four limiting blocks 3011 with the vertical side wall can prevent the housing 1 from rotating. When it is necessary to disassemble after the concrete is poured, first release the fixed connection between the bottom plate 3013 and the aluminum alloy formwork, and then rotate the limiting block 3011 of the bottom plate 3013 to the side close to the support frame 102, and the fixation can be released. The handle 103 can be used to lift out the box body. The two ends of the plate body of the bottom plate 3013 are chamfered into left-right symmetric arc shapes. The shape of the large arc chamfer on the side of the bottom plate 3013 close to the limiting block 3011 can ensure that the four bottom plates 3013 will not touch and interfere with each other during rotation and can be used normally. The large arc chamfer on the side of the bottom plate 3013 close to the positioning block 3012 ensures that when the snap-fastening plate rotates until the limiting block 3011 rotates to the side close to the support frame 102, the snap-fastening plate will not protrude from the housing 1, ensuring that the box body can be lifted out smoothly.

[0051] Advantages of this embodiment compared with Embodiment 1: Inside the housing 1, it is not necessary to set a screw nut. Instead, through the cooperation of the claw part 3122 on the template connection part 301 and the engaging part 3211, it is possible to prevent the box body from floating, rotating, and shifting during concrete pouring; removing the structure of the screw nut effectively solves the problem that the screw nut will quickly rust in the humid construction environment, which in turn increases the difficulty of disassembly. At the same time, it can effectively fix the housing and form accurate openings; the setting of the limit block 3011 can also prevent the box body from rotating during concrete pouring. During installation, only the bottom plate 3013 needs to be rotated, and the operation is simple.

[0052] Embodiment 3

[0053] As Figure 8 Shown is Embodiment 3 of a setting-out opening box for building construction. The difference from Embodiment 2 is that, further, the housing bottom installation part 302 includes a pin hole 3022 on the vertical side panel 1012. The template connection part 301 includes a pin. The pin is a standard part. The pin is inserted into the pin hole 3022 and connected and fixed to the floor aluminum formwork member.

[0054] Advantages of this embodiment compared with Embodiment 1: The pin hole 3022 and the floor aluminum formwork member are fixed by a pin. Two groups of the pin hole 3022 and the pin structure are provided on one vertical side plate 101, which can also effectively prevent the housing 1 from floating, rotating, and shifting during concrete pouring; although the pin can be a metal member like the screw nut, the pin and the pin hole 3022 can be set to have an interference fit. During installation and disassembly, only simple operations of inserting and pulling out are required, and there is no need to loosen and tighten with tools like screw connection. There is no problem that the screw connection becomes difficult to disassemble due to rust jamming, that is, it effectively solves the problem that the screw nut will quickly rust in the humid construction environment, which in turn increases the difficulty of disassembly.

[0055] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A setting-out opening box for building construction, comprising a housing (1), the housing (1) includes four side plates (101) enclosing a cavity, each of the side plates (101) includes an inclined side panel (1011) and a vertical side panel (1012) located at the bottom end of the inclined side panel (1011), and one end of the inclined side panel (1011) away from the inclined side panel (1011) is inclined outward of the housing (1), characterized in that, It further includes an installation mechanism (3), and the installation mechanism (3) is installed at the bottom of the housing (1).

2. The setting-out opening box for building construction according to claim 1, characterized in that, The housing (1) further includes a support frame (102). The support frame (102) is a cross-shaped plate member located inside the housing (1), and the position where the support frame (102) is fixedly connected to the side plate (101) is the midline of the side plate (101).

3. The layout opening box for building construction according to claim 1, characterized in that, The housing (1) further includes a handle (103). The handle (103) is a crossbeam located at the top of the housing (1) and fixedly connected to two opposite inclined side panels (1011).

4. The setting-out opening box for building construction according to claim 3, characterized in that, It further includes a handle cover plate (2). A clamping device (201) is provided on the bottom surface of the handle cover plate (2). A handle mounting plate (203) is arranged inside the handle (103). The handle mounting plate (203) is fixedly connected to two opposite long side surfaces of the handle (103). The clamping device (201) is in interference fit with the handle mounting plate (203) to connect and fix the handle cover plate (2); Cover bumps (202) for facilitating the disassembly of the handle cover plate (2) are provided at both sides of the upper surface of the handle cover plate (2).

5. The layout opening box for building construction according to claim 1, characterized in that, The housing (1) further includes an anti-slip edge (104) connected to the top of the side.

6. The alignment opening box for building construction according to claim 2, characterized in that, The installation mechanism (3) includes a bottom housing mounting part (302) located at the bottom of the housing (1) and a template connection part (301) connected to the bottom housing mounting part (302).

7. The setting-out opening box for building construction according to claim 6, characterized in that, The bottom housing mounting part (302) includes positioning holes (3021) located at the bottom of the support frame (102); The template connection part (301) includes a bottom plate (3013) provided with a positioning block (3012) and a limiting block (3011) for restricting the rotation of the housing (1). The positioning hole (3021) is engaged and rotatably connected with the positioning block (3012). The positioning block (3012) and the limiting block (3011) are located on the midline of the bottom plate (3013) and are distributed on both sides of the bottom plate (3013).

8. A setting-out opening box for building construction according to claim 7, characterized in that, The four corners of the bottom plate (3013) are all arc-shaped chamfers. The cross-sections of the positioning block (3012) and the positioning hole (3021) are both circular. A deformation groove (3121) for facilitating the engagement of the positioning block (3012) and the positioning hole (3021) is provided at the center of the positioning block (3012).

9. The layout opening box for building construction according to claim 8, wherein, A claw part (3122) for facilitating the stable engagement and installation of the positioning block (3012) and the positioning hole (3021) is fixedly connected to the side surface of the top end of the positioning block (3012). A clamping part (3211) engaged with the claw part (3122) is provided on the side surface of the inner top end of the positioning hole (3021).

10. A setting-out opening box for building construction according to claim 6, characterized in that, The bottom housing mounting part (302) includes pin holes (3022) located on the vertical side panel (1012). The template connection part (301) includes a pin. The pin is a standard part. The pin is inserted into the pin holes (3022) and is connected to the floor aluminum formwork member.

Images