Wall-penetrating steel hole opening anchoring device and construction method

Abstract

The application discloses a kind of through-wall type steel hole mouth solid protection device and construction method, device includes protection unit (1), the protection unit (1) includes horizontal protection device (11) and vertical protection device (12), the horizontal protection device (11) and vertical protection device (12) are equipped with multiple bolt interfaces (13), front cover plate unit (2) includes front cover plate (21), the bottom of the front cover plate (21) is equipped with front cover plate counterweight (23), top is equipped with material port (22), rear cover plate unit (3) includes rear cover plate (31), the bottom of the rear cover plate (31) is equipped with rear cover plate counterweight (32), reinforcing unit (4) includes adapter (41), the middle of the adapter (41) is equipped with knob (42), bottom is equipped with fastening head (43).The device can be flexibly adjusted according to the actual situation on site, not only can effectively prevent the damage to the structure on both sides during the installation and removal of profile steel (7), but also does not need to set up formwork on the outer wall when plugging the hole.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building engineering, more specifically, relates to a through-wall steel hole fixing and preventing device and a construction method. BACKGROUND

[0002] At present, cantilevered steel is widely used in the construction of high-rise civil building engineering. After the completion of the main structure construction, the cantilevered steel needs to be removed, and the through-wall hole produced by the steel on the wall needs to be promptly poured with concrete for plugging. When removing the steel in the masonry wall, due to the fixed size of the wall, vertical mortar gaps will appear in the area above the hole left by the steel. In addition, these holes usually do not have a lintel installed, and the mortar used during masonry has relatively low strength. Therefore, the several layers of bricks above the hole are prone to sink after masonry, resulting in continuous through cracks at the horizontal and vertical mortar joints, which will adversely affect the construction quality. For building exterior walls, wooden boxes are often used as protection between the steel and the exterior wall during installation. During removal, the wooden boards are often difficult to clean completely.

[0003] During steel removal operations, the steel is often easily disturbed, which can cause damage to the surrounding wall structure, thereby damaging the existing structure that has been completed, causing water seepage problems and wall cracking in the exterior wall, etc. After the steel is removed, the reserved hole needs to be plugged. The general plugging method is to set up a support on the inside and outside of the hole, set up a formwork on the inside and outside of the hole, then pour concrete into the hole, and remove the formwork after the concrete reaches a certain strength. This method not only takes time and effort, but also has certain safety hazards, and also affects the subsequent removal of the steel.

[0004] In order to solve the above problems, patent document CN115126276A discloses a plugging device for a cantilevered I-beam reserved hole and a construction method, which includes an outer formwork, an inner formwork, iron wire, and a baffle. The outer formwork and the inner formwork are used to plug the reserved hole. A reserved through hole is provided on the inner formwork, and an arc-shaped pouring opening is provided on the top of the inner formwork. A material guide groove is provided at the arc-shaped pouring opening, and a fixed baffle is further provided on the material guide groove at the connection between the material guide groove and the arc-shaped pouring opening. The rear end of the iron wire is fixed to the outer formwork, the front end of the iron wire passes through the reserved through hole on the inner formwork and is tightly connected through a nut. The baffle is detachably clamped between the fixed baffle on the material guide groove and the inner side of the wall, and is used to plug the arc-shaped pouring opening on the inner formwork. The plugging device has the advantage of not needing to set up an outer wall support for plugging the reserved hole. The overall structure is simple, easy to install, and some structures can be recycled, saving construction costs. It is practical and suitable for popularization and use. However, it cannot play a role during the installation and removal of the steel, and the excess iron wire needs to be polished and cleaned.

[0005] Furthermore, patent document CN106088447B discloses a device and construction method for protecting holes in cantilevered scaffolding steel sections on exterior walls. During brick wall construction, U-shaped protective bricks are installed at the cantilevered steel sections, effectively protecting the surrounding wall and insulation layer during brick wall construction and cantilevered steel removal. After the cantilevered steel is removed, the protective brick cover is bolted to the U-shaped protective bricks, and the hole is sealed with concrete indoors, achieving a rapid and effective hole sealing technique and device. However, this device is only applicable to brick walls, and the finished protective bricks have limited rigidity and cannot be adjusted to the hole size. Summary of the Invention

[0006] In response to the above defects or improvement needs of the prior art, the present invention provides a through-wall steel opening reinforcement and protection device and a construction method. The reinforcement unit cooperates with the protection unit to reinforce the steel at various construction stages, which solves the problem that the steel is easily disturbed during the construction process, causing damage to the exterior wall structural materials, improves the safety of the steel during construction, and also facilitates the installation and removal of the steel, thereby improving construction efficiency. The front cover unit and the rear cover unit can automatically close under the action of gravity, thereby solving the problem that two people are required to operate inside and outside when sealing the steel opening. When sealing the opening, there is no need to use external scaffolding for formwork, and the external scaffolding of other parts can be removed normally, which reduces the difficulty of operation for workers, improves construction safety, saves manpower and material resources, shortens the construction period, reduces the risk of leakage at the opening, effectively reduces subsequent rework and repair, and improves the overall visual quality of the building project.

[0007] To achieve the above objectives, according to one aspect of the present invention, a device for securing a through-wall steel opening is provided, comprising a protective unit comprising a horizontal protective device disposed on the top of the inner steel opening wall, and a vertical protective device disposed on the side of the inner steel opening wall. The horizontal and vertical protective devices are used to prevent damage to structures on both sides during the installation and removal of the steel.

[0008] The front cover unit includes a front cover for blocking the steel opening, and front cover counterweights are provided on both sides of the bottom of the front cover to automatically close the front cover under the action of gravity;

[0009] The rear cover unit includes a rear cover for blocking the opening of the steel section, and rear cover counterweights are provided on both sides of the bottom of the rear cover to automatically close the front cover under the action of gravity;

[0010] And a reinforcement unit fixedly installed on the horizontal protective device and the vertical protective device, which includes an adapter with a knob in the middle and a fastening head at the bottom, which is used to cooperate with the protective unit to reinforce the steel section during the construction phase to avoid damage to the exterior wall structural materials.

[0011] Further, the horizontal protection device and the vertical protection device are provided with a plurality of bolt interfaces for fixed connection with the wall surface.

[0012] Further, the horizontal protection device and the vertical protection device can be adjusted according to the size of the steel hole.

[0013] Further, one side edge of the front cover plate is hingedly connected with the top of the inner wall hole, and one side edge of the rear cover plate is hingedly connected with the top of the outer wall hole.

[0014] Further, the inner and outer sides of the front cover plate and the rear cover plate are provided with sand surfaces.

[0015] Further, the front cover plate can be automatically closed under the gravity of the front cover plate weight block when the steel is removed, and the rear cover plate can be automatically closed under the gravity of the front cover plate weight block when the steel is removed.

[0016] Further, the top of the front cover plate is provided with a material opening for pouring concrete.

[0017] Further, the surface of the fastening head is provided with threads.

[0018] Further, the adapter can be flexibly connected according to the relative position of the steel and the protection unit 1.

[0019] According to another aspect of the present application, a construction method of a through-wall steel hole protection device is provided, which is realized by using the above-mentioned through-wall steel hole protection device, and includes the following steps:

[0020] S100: According to the actual size of the steel hole, the horizontal protection device and the vertical protection device are fixedly installed on the inner wall surface of the steel hole through the bolt interface;

[0021] S200: The sand surface is fixedly installed on the front and rear surfaces of the front cover plate unit and the rear cover plate unit, one side surface of the front cover plate unit is hingedly connected with the top of the inner wall hole, and one side surface of the rear cover plate unit is hingedly connected with the top of the outer wall hole;

[0022] S300: When the steel is installed, the front cover plate unit is opened, the steel is pushed into the steel hole to a predetermined position to push the closed rear cover plate unit, so that the front cover plate unit and the rear cover plate unit are supported on the steel;

[0023] S400: The reinforcing unit is fixedly installed on the horizontal protection device at the top of the hole and the vertical protection device at the side of the hole through the adapter, according to the relative position of the steel and the protection unit, the extension of the fastening head is adjusted by rotating the knob to enhance the stability of the steel.

[0024] S500: When the profile steel is removed, the tightness of the fastening head can be adjusted by rotating the knob in reverse direction, so that the fastening head is away from the profile steel, and then the profile steel is pulled out from the inside hole;

[0025] S600: After the profile steel is pulled out, the front cover plate unit and the rear cover plate unit are automatically closed to seal the inside and outside of the hole, at this time the reinforcing unit can be removed, and the hole is poured with concrete through the material opening of the front cover plate unit.

[0026] Overall, compared with the prior art, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0027] 1. The device of the present application can be flexibly adjusted and easily removed according to the actual situation on site, and is convenient to carry, which solves the problem that the formwork device needs to be customized on site during construction, improves the utilization rate of the device, and saves the construction cost.

[0028] 2. The device of the present application can reinforce the profile steel at each construction stage through the cooperation of the reinforcing unit and the protection unit, which solves the problem that the profile steel is easily disturbed during construction, causing the structure material of the outer wall to be damaged, improves the safety of the profile steel during construction, and also facilitates the installation and removal of the profile steel, improving the construction efficiency.

[0029] 3. The device of the present application solves the problem that two people are needed to operate inside and outside when plugging the profile steel hole through the automatic closure of the front cover plate unit and the rear cover plate unit, and the hole plugging does not need to use the outer scaffold for formwork, other parts of the outer scaffold can be normally removed, which reduces the operation difficulty of workers, improves the safety of construction, saves manpower and material resources, shortens the construction period, reduces the leakage risk at the hole, effectively reduces the subsequent rework and repair, and improves the overall quality of the building project. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structure schematic view of a wall-penetrating profile steel hole fixing and protection device according to an embodiment of the present application;

[0031] Figure 2 is a profile steel installation schematic view of a wall-penetrating profile steel hole fixing and protection device according to an embodiment of the present application;

[0032] Figure 3 is a reinforcing unit working schematic view of a wall-penetrating profile steel hole fixing and protection device according to an embodiment of the present application;

[0033] Figure 4 is a front view of a reinforcing unit of a wall-penetrating profile steel hole fixing and protection device according to an embodiment of the present application;

[0034] Figure 5 is a side view of a reinforcing unit of a wall-penetrating profile steel hole fixing and protection device according to an embodiment of the present application;

[0035] Figure 6 is a front view of a protection unit of a through-wall steel hole fixed protection device according to an embodiment of the present application;

[0036] Figure 7 is a closed state schematic diagram of a through-wall steel hole fixed protection device according to an embodiment of the present application;

[0037] Figure 8 is a front cover plate unit schematic diagram of a through-wall steel hole fixed protection device according to an embodiment of the present application;

[0038] Figure 9 is a construction method flow schematic diagram of a through-wall steel hole fixed protection device according to an embodiment of the present application.

[0039] In all the drawings, the same reference signs represent the same technical features, specifically: 1-protection unit, 11-horizontal protection device, 12-vertical protection device, 13-bolt interface, 2-front cover plate unit, 21-front cover plate, 22-material opening, 23-front cover plate counterweight, 3-rear cover plate unit, 31-rear cover plate, 32-rear cover plate counterweight, 4-reinforcement unit, 41-adapter, 42-knob, 43-fastening head, 5-sand surface, 6-hinge, 7-steel. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as there is no conflict.

[0041] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the description in the embodiments of the present application involves "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0043] In this patent, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent in such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0044] As Figures 1-8As shown, the embodiment of the present application provides a through-wall type steel hole fixing and preventing device, which comprises a protection unit 1, a front cover plate unit 2, a rear cover plate unit 3, a reinforcing unit 4, a sand surface 5 and a hinge 6, the protection unit 1 is fixedly installed on the wall surface, used for protecting the structure on both sides of the type steel hole and the type steel itself, effectively preventing the damage to the structure on both sides of the hole during the installation and removal of the type steel 7, one side of the front cover plate unit 2 is hinged to the top of the hole in the inner wall surface through the hinge 6, used for plugging the reserved type steel hole after the type steel 7 is removed, one side of the rear cover plate unit 3 is hinged to the top of the hole in the outer wall surface through the hinge 6, used for plugging the reserved type steel hole after the type steel 7 is removed, and the reinforcing unit 4 fixedly installed on the protection unit 1 can effectively prevent the damage to the structure on both sides of the hole during the installation and removal of the type steel 7, and also reduces the dependence on the outer frame during the installation and removal of the type steel 7, improves the stability of the type steel 7 during the installation, use and removal stages, prevents the movement or shaking of the type steel 7 during the construction process, causing the damage to the outer wall structure material, improves the safety of the type steel 7 during the construction, and also facilitates the installation and removal of the type steel 7, improves the construction efficiency, the front and rear planes of the front cover plate unit 2 and the rear cover plate unit 3 are provided with the sand surface 5, which increases the contact area of the concrete or other building materials with the front cover plate unit 2 and the rear cover plate unit 3, can provide better adhesion, so that the concrete or other building materials can be more firmly bonded together, which helps to improve the stability of the structure, thereby enhancing the bonding force. The device of the present application, the protection unit 1 can be adjusted in size according to the actual situation on site, improving the applicability of the device, the reinforcing unit 4 fastens the type steel 7 during the installation, use and removal stages, reduces the movement or shaking of the type steel 7 during the construction process, can effectively reduce the damage to the structure on both sides during the installation and removal of the type steel 7, protects the integrity of the building structure, reduces the safety hazards during the construction, and also reduces the dependence on the outer frame during the installation and removal process, the device can automatically complete the closing of the front and rear cover plate units during the installation and removal of the type steel 7, avoids the subsequent manual closure by workers on the outside, is easy for workers to operate, reduces the consumption of manpower and material resources, saves the type steel 7 removal time, shortens the construction period, protects the stability of the structure on both sides, improves the hole permeability resistance, and further improves the visual quality of the building.

[0045] As Figures 1-2 and as Figures 6-7As shown, the protection unit 1 includes horizontal protection device 11 arranged at the top of the inner side steel hole wall surface, and vertical protection device 12 arranged at the side of the inner side steel hole wall surface, the horizontal protection device 11 and the vertical protection device 12 are provided with a plurality of bolt interfaces 13 for fixed connection with the wall surface, the installation and removal of the protection unit 1 is realized through the bolt interface 13, the horizontal protection device 11 and the vertical protection device 12 can be flexibly adjusted in size according to the actual situation on site, to ensure perfect matching with the steel hole, improve the use range, stability and construction efficiency of the structure, the horizontal protection device 11 and the vertical protection device 12 can provide comprehensive protection for the top and both sides of the hole, effectively prevent the damage to the structure on both sides during the installation and removal of the steel 7, and cooperate with the reinforcing unit 4 to ensure that the steel 7 remains stable during the installation, use and removal stage, and reduce the security risks during construction.

[0046] As shown in Figures 1-2 and as shown in Figure 8 The front cover plate unit 2 includes a front cover plate 21, one side of which is hinged to the top of the inner side wall hole through a hinge 6, and the bottom of the front cover plate 21 is provided with a front cover plate counterweight 23 on both sides, which can automatically close when the steel 7 is removed under the gravity of the front cover plate counterweight 23, the top of the front cover plate 21 is provided with a material port 22 for pouring concrete, which is used for plugging treatment of the steel hole after the steel 7 is removed, and the inner and outer sides of the front cover plate 21 are provided with a sand surface 5, which can increase the contact area of concrete or other building materials with the front cover plate 21, provide better adhesion, and make the concrete or other building materials more firmly bonded together, which helps to improve the stability of the structure, thereby enhancing the bonding force.

[0047] As shown in Figures 1-2 The rear cover plate unit 3 includes a rear cover plate 31, one side of which is hinged to the top of the outer side wall hole through a hinge 6, and the bottom of the rear cover plate 31 is provided with a rear cover plate counterweight 32 on both sides, which can automatically close when the steel 7 is removed under the gravity of the rear cover plate counterweight 32, the inner and outer sides of the rear cover plate 31 are provided with a sand surface 5, which can increase the contact area of concrete or other building materials with the rear cover plate 31, provide better adhesion, and make the concrete or other building materials more firmly bonded together, which helps to improve the stability of the structure, thereby enhancing the bonding force.

[0048] As shown in Figures 2-6As shown, the reinforcement unit 4 includes an adapter 41, which is used to be fixedly connected to the horizontal protective device 11 at the top of the opening and the vertical protective devices 12 on both sides of the opening, and can be flexibly connected according to the relative position of the steel section 7 and the protection unit 1. A knob 42 is provided in the middle of the adapter 41, and a fastening head 43 is provided at the bottom. The surface of the fastening head 43 is provided with a thread, and the knob 42 is connected to the fastening head 43 through a thread. The fastening head 43 can be extended or retracted by turning the knob 42. The reinforcement unit 4 can reinforce the steel section 7 during its construction phase, which solves the problem that the steel section 7 is easily disturbed during the construction process, causing the exterior wall structural material to be damaged, improves the safety of the steel section 7 during construction, and also facilitates the installation and removal of the steel section 7, thereby improving construction efficiency.

[0049] The device of the present invention is installed with a protection unit 1, a front cover unit 2, a rear cover unit 3 and a reinforcement unit 4, wherein the protection unit 1 can be flexibly adjusted according to the actual situation on site and is easy to dismantle and carry, which solves the problem that the template device needs to be customized on site during the construction process and improves the utilization rate of the device. The reinforcement unit 4 cooperates with the protection unit 1 to reinforce the steel section 7 during the construction stage, which solves the problem that the steel section 7 is easily disturbed during the construction process, causing the exterior wall structural material to be damaged, improves the safety of the steel section 7 during construction, and also facilitates the installation and removal of the steel section 7, thereby improving construction efficiency. The automatic closing function of the front cover unit 2 and the rear cover unit 3 under the action of gravity solves the problem that two people are required to operate inside and outside when sealing the steel section hole. When sealing the hole, there is no need to use an external scaffolding for formwork, and the external frames of other parts can be dismantled normally, which reduces the difficulty of operation for workers, improves the safety of construction, saves manpower and material resources, shortens the construction period, reduces the risk of leakage at the hole, effectively reduces subsequent rework and repair, and improves the visual quality of the overall construction project.

[0050] Combine Figures 1-8 ,like Figure 9 As shown, the present invention provides a construction method for a through-wall steel opening security device. The specific steps of implementing the through-wall steel opening security device are as follows:

[0051] S100: According to the actual size of the steel opening on site, the horizontal protection device 11 and the vertical protection device 12 are fixedly installed on the inner wall of the steel opening through the bolt interface 13;

[0052] S200: The sanding surface 5 is fixedly installed on the front and rear surfaces of the front cover unit 2 and the rear cover unit 3. One side of the front cover unit 2 is hinged to the top of the inner wall opening through the hinge 6. One side of the rear cover unit 3 is hinged to the top of the outer wall opening through the hinge 6.

[0053] S300: When installing the steel 7, open the front cover plate unit 2, push the steel 7 into the steel hole to the predetermined position to push the steel 7 to open the closed rear cover plate unit 3, so that the front cover plate unit 2 and the rear cover plate unit 3 are supported on the steel 7;

[0054] S400: The reinforcing unit 4 is fixedly installed on the horizontal protection device 11 at the top of the hole and the vertical protection device 12 at the side of the hole through the adapter 41, and according to the relative position of the steel 7 and the protection unit 1, the extension of the fastening head 43 is adjusted by rotating the knob 42 to enhance the stability of the steel 7;

[0055] S500: When removing the steel 7, the tightness of the fastening head 43 can be adjusted by reversing the rotation of the knob 42, so that the fastening head 43 is away from the steel 7, and then the steel 7 is pulled out from the inside of the hole;

[0056] S600: After the steel 7 is pulled out, the front cover plate unit 2 and the rear cover plate unit 3 will automatically close to seal the inside and outside of the hole, at which time the reinforcing unit 4 can be removed, and the hole can be poured with concrete through the material port 22 of the front cover plate unit 2.

[0057] Those skilled in the art will readily understand that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A through-wall steel hole anchoring and protecting device, characterized in that, The application relates to a through-wall steel hole protection device, which comprises the following units: a protection unit (1) comprising horizontal protection devices (11) arranged on the top of an inner side steel hole wall surface and vertical protection devices (12) arranged on the side of the inner side steel hole wall surface, the horizontal protection devices (11) and the vertical protection devices (12) being used for preventing the damage to the structure on both sides during the installation and removal of the steel (7); a front cover plate unit (2) comprising a front cover plate (21) used for blocking the steel hole, the bottom of the front cover plate (21) being provided with front cover plate counterweights (23) capable of automatically closing the front cover plate (21) under the action of gravity; a rear cover plate unit (3) comprising a rear cover plate (31) used for blocking the steel hole, the bottom of the rear cover plate (31) being provided with rear cover plate counterweights (32) capable of automatically closing the front cover plate (21) under the action of gravity; and a reinforcing unit (4) fixedly arranged on the horizontal protection devices (11) and the vertical protection devices (12), the reinforcing unit (4) comprising an adapter (41), the middle of the adapter (41) being provided with a knob (42), and the bottom of the adapter (41) being provided with a fastening head (43), which is used for reinforcing the protection unit (1) during the construction of the steel (7) and preventing the damage to the outer wall structure material. The horizontal protection devices (11) and the vertical protection devices (12) are provided with a plurality of bolt interfaces (13) used for fixing connection with the wall surface. The horizontal protection devices (11) and the vertical protection devices (12) can be adjusted according to the size of the steel hole. One side of the front cover plate (21) and the top of the inner side wall hole are hinged through a hinge (6), and one side of the rear cover plate (31) and the top of the outer side wall hole are hinged through a hinge (6). The front cover plate (21) and the rear cover plate (31) are provided with sand surfaces (5) on the inner side and the outer side. The top of the front cover plate (21) is provided with a material port (22) used for pouring concrete. The surface of the fastening head (43) is provided with threads.

2. The through-wall steel hole anchoring and protecting device according to claim 1, characterized in that, The adapter (41) can be flexibly connected according to the relative position of the steel (7) and the protection unit (1).

3. The through-wall steel hole anchoring and protecting device according to claim 2, characterized in that, The application is implemented by using the through-wall steel hole protection device of claim 4, and comprises the following steps:

4. The through-wall steel hole fixation and protection device according to claim 3, characterized in that, S100: according to the actual size of the steel hole, the horizontal protection devices (11) and the vertical protection devices (12) are fixedly arranged on the inner side wall surface of the steel hole through the bolt interfaces (13); 5. The through-wall steel hole fixation and protection device according to claim 1, characterized in that, S200: the sand surfaces (5) are fixedly arranged on the front and rear surfaces of the front cover plate unit (2) and the rear cover plate unit (3), one side of the front cover plate unit (2) is hinged to the top of the inner side wall hole through a hinge (6), and one side of the rear cover plate unit (3) is hinged to the top of the outer side wall hole through a hinge (6); 6. The through-wall steel hole fixation and protection device according to claim 1, characterized in that, S300: when the steel (7) is installed, the front cover plate unit (2) is opened, the steel (7) is pushed into the steel hole to a predetermined position, the steel (7) pushes away the closed rear cover plate unit (3), and the front cover plate unit (2) and the rear cover plate unit (3) are supported on the steel (7).

7. A construction method of a wall-penetrating steel hole fixation and protection device, characterized in that, ​ ​ ​ ​ S400: The reinforcement unit (4) is fixedly installed on the horizontal protection device (11) at the top of the hole and the vertical protection device (12) at the side of the hole through the adapter (41). According to the relative position of the profiled steel (7) and the protection unit (1), the extension of the fastening head (43) is adjusted by rotating the knob (42) to enhance the stability of the profiled steel (7); S500: When the profiled steel (7) is removed, the tightness of the fastening head (43) can be adjusted by reversing the rotation of the knob (42) to make the fastening head (43) away from the profiled steel (7), and then the profiled steel (7) is pulled out from the inside hole; S600: After the profiled steel (7) is pulled out, the front cover plate unit (2) and the rear cover plate unit (3) will automatically close to seal the inside and outside of the hole. At this time, the reinforcement unit (4) can be removed, and the hole can be poured with concrete through the material port (22) of the front cover plate unit (2).

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